CN108131282A - A kind of constant-pressure control device - Google Patents
A kind of constant-pressure control device Download PDFInfo
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- CN108131282A CN108131282A CN201711396235.7A CN201711396235A CN108131282A CN 108131282 A CN108131282 A CN 108131282A CN 201711396235 A CN201711396235 A CN 201711396235A CN 108131282 A CN108131282 A CN 108131282A
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- Prior art keywords
- constant
- hydraulic pressure
- information
- voltage controller
- pressure
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/08—Regulating by delivery pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/05—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by internal-combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The present invention provides a kind of constant-pressure control device, including：Hydraulic pressure information for detecting the hydraulic pressure information of pump outlet, and is sent to constant-voltage controller by pressure sensor；Rotary speed information for detecting the rotary speed information of the power plant of driving pump working, and is sent to constant-voltage controller by speed probe；Constant-voltage controller for receiving hydraulic pressure information and rotary speed information, and according to hydraulic pressure information and rotary speed information generation control signal, and sends control signals to constant pressure actuator；Constant pressure actuator controls signal for receiving, and drives the rotating speed of the power plant of the pump working according to signal is controlled to control.Constant-pressure control device provided in an embodiment of the present invention, by acquiring and analyzing the hydraulic pressure information of pump outlet and the rotary speed information of water pump driving device, the rotating speed of real-time monitoring water pump driving device, to keep the water pressure invariableness of pump outlet in real time.
Description
Technical field
The present invention relates to automatic control technology fields, and in particular to a kind of constant-pressure control device.
Background technology
With social development, city is constantly extended, and in present water system, pipeline network construction is complicated, and the old and new replace too late
When, the old and new's pipe network is for causing the leakage of water in pipe network.Leakage can reduce pipe network water pressure so that water system cannot be transported normally
Row.In addition in construction project, pipe network damage also happens occasionally.The lower pollution of waterhead of industry great development is also recurrent existing
As.Therefore, in order to ensure people's water safety, the guarantee people drinks safe drinking water, provides constant pressure Emergency water supply,
It supplements the constant pressure Emergency water supply demand of the units such as village, cell, hotel, school, there is important social value.
Water pump is connected using power takeoff, is an emerging Emergency water supply technology to realize Emergency water supply.Present power taking
Device water supply is mostly that constant rotational speed supplies water or supplied water by operator's manual operation.The shortcomings that supplying water so mainly has hydraulic pressure not
Stablize.It is possible that hydraulic pressure is too high, the water pipe to be supplied water explosion or leak are caused；It is also possible to that hydraulic pressure is too low, by the height of water supply side
Locate anhydrous arrival；Or hydraulic pressure is fluctuated, causes flow instability, The water splash in all directions when being discharged big, and hour is hardly discharged.Water
The client fluctuated being particularly disadvantageous for using water heater is pressed, when hydraulic pressure is high, water yield is big, and temperature is low；Hydraulic pressure it is low when
It waits, water yield is small, and temperature is high, may scald user, and very big inconvenience is brought to user, therefore have very much must for constant pressure Emergency water supply
It will.
The drive connection of power takeoff is generally the Hard link of pneumatic control, and normal operating is：Start chassis vehicle, step on clutch
Device, presses power take-off valve, and power takeoff solenoid valve obtains electric, and gas buck switch pushes gear to be combined with gearbox gear, relieving clutch
Device, power takeoff are started to work.The transmission shaft of power takeoff drives speed increaser, drives water pump rotation, and water pump, which is started to work, to be pumped.In this way
A complex process, it is difficult to use Frequency Converter Control water pump motor speed realize constant pressure water supply.Due to engine in situ vehicle
Rotating speed be idling to maximum speed, and engine idling generally 500-800 revs/min of setting, i.e., power takeoff is in not speedup feelings
Condition will be 500 turns or more.
The high rotation speed operation of engine not only has the water supply caused by hydraulic pressure superelevation and the damage of watering equipment, also increases oil
Consumption and discharge cause unnecessary pollution environment and increase the wear and aging of mechanical equipment.
Invention content
Therefore, the technical problem to be solved in the present invention, which is to overcome, lacks in the prior art to automobile power transmission constant pressure water supply
The defects of equipment controling effectively, so as to provide a kind of constant-pressure control device.
An embodiment of the present invention provides a kind of constant-pressure control devices, are connect with water pump, including：Pressure sensor, for examining
The hydraulic pressure information of the pump outlet is surveyed, and the hydraulic pressure information is sent to constant-voltage controller；Speed probe, for examining
The rotary speed information for the power plant for driving the pump working is surveyed, and the rotary speed information is sent to constant-voltage controller；Constant pressure
Controller, for receiving the hydraulic pressure information and rotary speed information, and according to the hydraulic pressure information and rotary speed information generation control letter
Number, and the control signal is sent to constant pressure actuator；Constant pressure actuator, for receiving the control signal, and according to institute
The control of control signal is stated for driving the rotating speed of the power plant of the pump working.
Constant-pressure control device provided in an embodiment of the present invention, by the hydraulic pressure information for acquiring and analyzing pump outlet in real time
With the rotary speed information of water pump driving device, the rotating speed of real-time monitoring water pump driving device, to keep the hydraulic pressure of pump outlet permanent
It is fixed, avoid the water supply caused by hydraulic pressure superelevation and the damage of watering equipment.
With reference to above-mentioned first embodiment, in this second embodiment, the constant-voltage controller is according to the hydraulic pressure information
Control signal is generated with rotary speed information, including：Judge whether the hydraulic pressure information is more than described in the first default hydraulic pressure value or judgement
Whether hydraulic pressure information is less than the second default hydraulic pressure value；When the hydraulic pressure information is more than the first default hydraulic pressure value, the perseverance
Pressure controller generation controls the first control signal that the power plant rotating speed slows down；When the hydraulic pressure information is less than described second
During default hydraulic pressure value, the constant-voltage controller generation controls the second control signal that the power plant rotating speed accelerates.
The constant-pressure control device that second embodiment of the invention provides is preset by setting the first default hydraulic pressure value and second
Hydraulic pressure value, by the hydraulic pressure control of pump outlet in the range of being delimited by the first default hydraulic pressure value and the second default hydraulic pressure value,
The problem of hydraulic pressure is excessively high and hydraulic pressure is insufficient is adjusted in real time.
With reference to above-mentioned first embodiment, in the third embodiment, the power for being used to drive the pump working
Device is the engine and power takeoff of automobile.
With reference to above-mentioned first embodiment, in the 4th embodiment, the constant pressure actuator includes：First switch and
Two switches；Wherein, when the hydraulic pressure information is more than the first default hydraulic pressure value, the constant-voltage controller generates to be closed
The first control signal of first switch, to connect the deceleration control terminal of automobile by the first switch, to the hair of the automobile
Motivation rotating speed slows down；When the hydraulic pressure information is less than the second default hydraulic pressure value, the constant-voltage controller generation is used
In the second control signal for being closed second switch, to connect the speedup control terminal of the automobile by the second switch, to institute
The engine speed for stating automobile carries out speedup.
The constant-pressure control device that third embodiment of the invention and the 4th embodiment provide, by acquiring and analyzing in real time
The hydraulic pressure information of pump outlet and the rotary speed information of water pump driving device, real-time monitoring water pump driving device, i.e. car engine
The rotating speed of machine, and then the water pump driven by automobile engine and power takeoff is controlled, to keep the water pressure invariableness of pump outlet, keep away
Exempt from the excessively high caused water supply of hydraulic pressure of automobile power transmission water supply and the damage of watering equipment.By setting the first default hydraulic pressure value
With the second default hydraulic pressure value, the hydraulic pressure control of pump outlet delimited by the first default hydraulic pressure value and the second default hydraulic pressure value
In the range of, the problem of hydraulic pressure is excessively high and hydraulic pressure is insufficient is adjusted in real time.When the hydraulic pressure of pump outlet exceeds by the first default water
During the range that pressure value and the second default hydraulic pressure value delimited, the deceleration control terminal of automobile or speedup control terminal are connected in real time, to utilize
The rotating speed of the constant speed cruising system adjust automatically automobile engine of automobile itself, and then control and driven by automobile engine and power takeoff
Dynamic water pump realizes the water pressure invariableness of pump outlet.
With reference to above-mentioned first embodiment, in the 5th embodiment, constant-pressure control device further includes：Water level sensor,
For detecting the water level information in the water tank being connected with the water pump, and the water level information is sent to constant-voltage controller；
When the water level information is more than preset water level value, the constant-voltage controller generation controls the third control of the power plant operating
Signal processed.
The constant-pressure control device that fifth embodiment of the invention provides acquires and analyzes in real time the water level information in water tank,
When water level reaches preset water level value in water tank, i.e., when water tank inner storing water is more, start water pump driving device externally to supply water；When
When water level is too low in water tank, driving device is switched off the pump to stop externally supplying water, and avoids damage water pump and automobile engine and is taken
Power device.
With reference to above-mentioned first embodiment, in sixth embodiment, the constant pressure actuator is switched including third；Work as institute
When stating water level information more than preset water level value, the constant-voltage controller generation controls signal for being closed the third of third switch,
To connect the constant-speed-cruise control end of the automobile, operate the engine of the automobile.
The constant-pressure control device that sixth embodiment of the invention provides, when water level reaches preset water level value in water tank, i.e.,
When water tank inner storing water is more, the operating of automobile engine is automatically controlled by the constant speed cruising system of automobile itself, and then control
The pump operation driven by automobile engine and power takeoff to supply water outward, realizes automatic water-supply.
With reference to above-mentioned first embodiment, in the 7th embodiment, constant-pressure control device further includes：Overflow valve, it is described
Overflow valve is used to receive the instruction of the constant-voltage controller to open simultaneously pressure release or the finger for receiving the constant-voltage controller
It enables closing and stopping pressure release；The constant-voltage controller is additionally operable to judge whether the hydraulic pressure information more than third presets hydraulic pressure
Value；When the hydraulic pressure information presets hydraulic pressure value more than the third, the constant-voltage controller generates to open overflow valve
To open the overflow valve, pressure release is carried out to the pump outlet for 4th control signal.
The constant-pressure control device that seventh embodiment of the invention provides, by the pressure for acquiring and analyzing pump outlet in real time
Force information, when pump outlet pressure is excessive, i.e., when pump outlet pressure presets hydraulic pressure value more than third, in order to avoid after
Continuous supercharging causes to supply water and watering equipment damage, automatic to start pressure relief device work with pressure release, enhances the safety of constant pressure water supply
And reliability.
With reference to above-mentioned first embodiment, in the 8th embodiment, constant-pressure control device further includes：It power supply and always opens
It closes, wherein, master switch is for accessing the power supply to start the constant-voltage controller, alternatively, for cutting off the power supply unit
To close the constant-voltage controller.
The constant-pressure control device that eighth embodiment of the invention provides, passes through opening for one key control constant-voltage controller of master switch
Dynamic or closing, it is easy to operate.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the functional block diagram of a specific example of the constant-pressure control device in the embodiment of the present invention 1；
Fig. 2 is the flow chart of a specific example of the method for work of the constant-pressure control device in the embodiment of the present invention 1；
Fig. 3 is the principle of a specific example of the automobile power transmission constant-pressure water-supplying control device in the embodiment of the present invention 2
Block diagram；
Fig. 4 is one of the method for work of the automobile power transmission constant-pressure water-supplying control device in the embodiment of the present invention 2 specific
Exemplary flow chart.
Specific embodiment
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's all other embodiments obtained without making creative work, shall fall within the protection scope of the present invention.
In addition, term " first ", " second ", " third " are only used for description purpose, and it is not intended that instruction or implying relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, it can be with
It is the connection inside two elements, can is wireless connection or wired connection.For those of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It can be combined with each other into conflict.
Embodiment 1
The embodiment of the present invention provides a kind of constant-pressure control device, is connect with water pump, as shown in Figure 1, the constant-pressure control device
Including：Pressure sensor 11, speed probe 12, constant-voltage controller 13 and constant pressure actuator 14.Wherein, pressure sensor 11 is used
In the hydraulic pressure information of detection pump outlet, and hydraulic pressure information is sent to constant-voltage controller；The detection driving of speed probe 12
The rotary speed information of the power plant of pump working, and rotary speed information is sent to constant-voltage controller；Constant-voltage controller 13 is used to connect
Hydraulic pressure information and rotary speed information are received, and according to hydraulic pressure information and rotary speed information generation control signal, and sent control signals to
Constant pressure actuator；Constant pressure actuator 14 controls to drive pump working for receiving control signal according to control signal
The rotating speed of power plant.
In a specific embodiment, the power plant for driving pump working can be motor or with vapour
The various engines as fuel such as oil, diesel oil or natural gas.
In a specific embodiment, constant-pressure control device provided in an embodiment of the present invention can follow the steps below work
Make, as shown in Figure 2：
Step S101：The hydraulic pressure information of pump outlet is obtained by pressure sensor 11；
Step S102：The rotary speed information of the power plant of driving pump working is obtained by speed probe 12；
Step S103：Judge whether hydraulic pressure information is more than the first default hydraulic pressure value；
Step S104：When hydraulic pressure information is more than the first default hydraulic pressure value, the generation control power plant of constant-voltage controller 13
The first control signal that rotating speed slows down；
Step S105：When hydraulic pressure information is not more than the first default hydraulic pressure value, it is pre- to judge whether hydraulic pressure information is less than second
If hydraulic pressure value；
Step S106：When hydraulic pressure information is less than the second default hydraulic pressure value, the generation control power plant of constant-voltage controller 13 turns
The second control signal that speed accelerates；
Step S107：When hydraulic pressure information is not less than the second default hydraulic pressure value, the holding current rotating speed of power plant.
Constant-pressure control device provided in an embodiment of the present invention, by the hydraulic pressure information for acquiring and analyzing pump outlet in real time
With the rotary speed information of water pump driving device, the rotating speed of real-time monitoring water pump driving device, to keep the hydraulic pressure of pump outlet permanent
It is fixed, it is difficult with water caused by avoiding the excessively high caused water supply of hydraulic pressure and the damage of watering equipment and hydraulic pressure too low.In order to
Realize constant pressure water supply, constant-pressure control device provided in an embodiment of the present invention sets the first default hydraulic pressure value and the second default hydraulic pressure
Value, by by the hydraulic pressure control of pump outlet in the range of being delimited by the first default hydraulic pressure value and the second default hydraulic pressure value,
The rotating speed of adjustment water pump driving device in real time, by the hydraulic pressure control of pump outlet in the first default hydraulic pressure value and the second default water
It between pressure value, solves the problems, such as that hydraulic pressure is excessively high and hydraulic pressure is insufficient, improves reliability of water supply.
Embodiment 2
The embodiment of the present invention provides a kind of automobile power transmission constant-pressure water-supplying control device, is connect with water pump, as shown in figure 3,
The automobile power transmission constant-pressure water-supplying control device includes：Pressure sensor 21, speed probe 22, constant-voltage controller 23 and constant pressure
Actuator 24.Wherein, pressure sensor 21 is used to detect the hydraulic pressure information of pump outlet, and hydraulic pressure information is sent to constant pressure
Controller；Speed probe 22 sends rotary speed information for detecting the rotary speed information of the power plant of driving pump working
To constant-voltage controller；Constant-voltage controller 23 is used to receive hydraulic pressure information and rotary speed information, and according to hydraulic pressure information and rotary speed information
Generation control signal, and send control signals to constant pressure actuator；Constant pressure actuator 24 controls signal for receiving, and according to
Signal control is controlled for driving the rotating speed of the power plant of pump working.It is provided in an embodiment of the present invention in practical operation
Automobile power transmission constant-pressure water-supplying control device is connected with the engine and power takeoff of automobile, and the engine and power takeoff of automobile are
For driving the power plant of pump working.
As shown in figure 3, constant pressure actuator 24 includes first switch S1, second switch S2 and third switch S3.Wherein, first
One end of switch S1 is connected between the ECU3 in constant-voltage controller 23 and auto cruise control system, first switch S1's
Cruise actuator 4 in another termination auto cruise control system.In a specific embodiment, the one of first switch S1
The engine speed for terminating at ECU in auto cruise control system reduces control port (i.e. R ports in Fig. 3) and constant pressure control
Between one output port of device 23 processed.
One end of second switch S2 is connected between the ECU3 in constant-voltage controller 23 and auto cruise control system,
Cruise actuator 4 in another termination auto cruise control system of second switch S2.In a specific embodiment, the
The engine speed that an ends of two switch S2 are connected on ECU in auto cruise control system increases control port (i.e. S in Fig. 3
Port) between an output port of constant-voltage controller 23.
An end of third switch S3 is connected on constant-voltage controller 23 and the ECU in auto cruise control system
Between (Electronic Control Unit electronic control units, abbreviation ECU) 3, another termination automobile of third switch S3 is determined
Cruise actuator 4 in fast cruise control system.In a specific embodiment, an end of third switch S3 is connected on automobile constant speed
In cruise control system between the PTO ports of ECU and an output port of constant-voltage controller 23.PTO ports, that is, automobile constant speed
The constant-speed-cruise control end of ECU in cruise control system.PTO is a kind of work(that engine is controlled to be run with constant speed on automobile
Can, and rotating speed does not change with load variations, after rotating speed setting, the ECU in auto cruise control system can basis
The variation of load and adjust automatically distributive value, keep engine speed constant.
In a specific embodiment, automobile power transmission constant-pressure water-supplying control device provided in an embodiment of the present invention further includes
Water level sensor 25, is shown in Fig. 3.Water level sensor 25 is for detecting the water level information in the water tank that is connected with water pump, and by water
Position information is sent to constant-voltage controller.Pump working is still forced on the one hand to be easy to cause water pump to supply water outward if water level is too low
Damage；On the other hand the engine long time of automobile can be caused to run at high speed, increases oil consumption and mechanical wear, and be still unable to reach
Preset output hydraulic pressure.It is in the present embodiment automobile power taking to find the situation of water level decreasing in time with appropriate moisturizing
Device constant-pressure water-supplying control device is additionally arranged water level sensor 25, passes through the water level in water level sensor 25 in real time monitoring water tank.
In a specific embodiment, automobile power transmission constant-pressure water-supplying control device provided in an embodiment of the present invention further includes
Overflow valve 26, is shown in Fig. 3.Overflow valve 26 is for receiving the instruction of constant-voltage controller 23 to open simultaneously pressure release or for receiving perseverance
The instruction of pressure controller 23 realizes the overvoltage protection to supply equipment and watering equipment to close and stop pressure release.
In practical applications, automobile power transmission constant-pressure water-supplying control device provided in an embodiment of the present invention further includes power supply 27
With master switch S4, Fig. 3 is seen.Wherein, master switch S4 is for accessing power supply 27 to start constant-voltage controller 23, alternatively, for cutting off
Power supply 27 realizes the startup or closing of a key control constant-voltage controller 23 to close constant-voltage controller 23 by master switch S4.
In a specific embodiment, automobile power taking that the chassis key switch NO power supplys of automobile are provided as the embodiment of the present invention 2
Power supply 27 in device constant-pressure water-supplying control device, one end of master switch S4 are connected to the chassis key switch NO power supplys of automobile, always
The rectified unit of the other end of switch S4 is connected to the Enable Pin of constant-voltage controller 23.The output electricity of chassis key switch NO power supplys
The rectified unit of energy can be exchanged into the direct current output of 12V or 24V, for supplying the work of constant-voltage controller 23.Another specific
In embodiment, a fuse is additionally arranged between chassis key switch NO power supplys and master switch S4, for constant-voltage controller 23
Input protection.In addition, also rectified unit is connected to the Enable Pin of constant-voltage controller 23 to chassis key switch AC power supplies, to protect
It holds constant-voltage controller 23 and is in sleep state.The main purpose that chassis key switch AC power supplies is introduced in power unit is to reduce perseverance
The available machine time of pressure controller 23.
In a specific embodiment, the automobile power transmission constant-pressure water-supplying control device that the embodiment of the present invention 2 provides can be pressed
It works according to following steps, as shown in Figure 4：
Step S201：Water level information in the water tank being connected with water pump is obtained by water level sensor 25.
Step S202：Judge whether water level information is more than preset water level value.
Step S203：When water level information is more than preset water level value, the generation control power plant operating of constant-voltage controller 23
Third control signal.When water level information is more than preset water level value, constant-voltage controller 23 generates to be closed third switch S3
Third control signal, third switch S3 is closed to connect the constant-speed-cruise control end of ECU in auto cruise control system,
The engine of automobile is operated, and then water pump is driven to supply water outward.
Step S204：The hydraulic pressure information of pump outlet is obtained by pressure sensor 21.
Step S205：The rotary speed information of the power plant of driving pump working is obtained by speed probe 22.
Step S206：Judge whether hydraulic pressure information more than third presets hydraulic pressure value.
Step S207：When hydraulic pressure information presets hydraulic pressure value more than third, constant-voltage controller 23 generates to open overflow
4th control signal of valve 26.4th control signal leads to be turned on and off the overflow valve 26 for the water tank being connected with water pump
It crosses overflow valve 26 and pressure release is carried out to pump outlet.In practical applications, it is permanent when hydraulic pressure information presets hydraulic pressure value more than third
Pressure controller 23 can also generate a control signal opposite with third control signal simultaneously, for cutting off third switch S3, into
And the constant-speed-cruise control end of ECU in auto cruise control system is cut off, the engine of automobile is shut down, that is, stops water pump
It supplies water outward.Setting third presets the main purpose of hydraulic pressure value, is to avoid caused by automobile engine runs at high speed for a long time
The excessively high situation of output hydraulic pressure.When the excessively high situation of appearance output hydraulic pressure, engine is on the one hand closed to avoid output water
On the other hand pressure further raising opens pressure relief device with quick pressure releasing, avoids high pressure that supply equipment and watering equipment is caused to damage
It is bad.In practical applications, pipeline between pump outlet and water tank can be set, overflow valve 26 is arranged on pipeline, overflow
Stream valve 26 is normal closed gate；When hydraulic pressure information presets hydraulic pressure value more than third, constant-voltage controller 23 generates to open overflow
4th control signal of valve 26, so that the flow recovery tank that water pump pumps out, on the one hand reduces water and pump out after overflow valve 26 is opened
The hydraulic pressure at the mouth of a river, on the other hand drains recovery tank by water, avoids water resource waste.Stepper motor can be set to control overflow valve 26
Unlatching amplitude, pressure release speed and pressure release intensity are controlled.In order to further improve water supply security, prevention hydraulic pressure is excessively high
When electric control structure overflow valve 26 fail, add the relief valve of mechanical structure and relief valve water pipe in another embodiment, with
Realize pressure release.
Step S208：Judge whether hydraulic pressure information is more than the first default hydraulic pressure value.
Step S209：When hydraulic pressure information is more than the first default hydraulic pressure value, the generation control power plant of constant-voltage controller 23
The first control signal that rotating speed slows down.In a specific embodiment, when hydraulic pressure information is more than the first default hydraulic pressure value, constant pressure
Controller 23 generates the first control signal for being closed first switch S1, and first switch S1 is closed to connect automobile fixed speed cruise
The engine speed of ECU reduces control port in control system, makes the engine of automobile reduce rotating speed, and then reduce going out for water pump
Water hydraulic pressure.
Step S210：When hydraulic pressure information is not more than the first default hydraulic pressure value, it is pre- to judge whether hydraulic pressure information is less than second
If hydraulic pressure value.
Step S211：When hydraulic pressure information is less than the second default hydraulic pressure value, the generation control power plant of constant-voltage controller 23
The second control signal that rotating speed accelerates.In practical applications, it is also necessary to while the rotating speed of the power plant to driving pump working
Information is judged, when the rotating speed of power plant has reached maximum speed, is preset even if current hydraulic pressure information is less than second
Hydraulic pressure value, it is still necessary to which power plant continues to run with a period of time with current rotating speed, until the hydraulic pressure of pump outlet reaches second
Default hydraulic pressure value.When hydraulic pressure information is less than the second default hydraulic pressure value, and the rotating speed of power plant is also not up to maximum speed,
The second control signal that the generation control power plant rotating speed of constant-voltage controller 23 accelerates.In a specific embodiment, work as hydraulic pressure
When information is less than the second default hydraulic pressure value, constant-voltage controller 23 generates the second control signal for being closed second switch S2, the
Two switch S2 are closed increases control port with the engine speed for connecting ECU in auto cruise control system, makes automobile
Engine improves rotating speed, and then improves the water outlet hydraulic pressure of water pump.
Step S212：When hydraulic pressure information is not less than the second default hydraulic pressure value, the holding current rotating speed of power plant.When hydraulic pressure is believed
When breath shows that the hydraulic pressure of pump outlet is between the first default hydraulic pressure value and the second default hydraulic pressure value, power plant can be kept to work as
Preceding rotating speed, to realize constant pressure water supply.
The work of the automobile power transmission constant-pressure water-supplying control device of the embodiment of the present invention is briefly introduced with an example below
Process.By automobile power transmission constant pressure water supply equipment for the user of high 30 floor in building carries out Emergency water supply, as a height of 3m in individual layer building
When, height of delivery should reach 90m；The hydraulic pressure to be supplied water is calculated according to acceleration of gravity should be preset in more than 9kg, can will supply water
Range hydraulic pressure be set as 9kg~11kg, wherein 11kg corresponds to the first default hydraulic pressure value, and 9kg corresponds to the second default hydraulic pressure value；Root
Hydraulic pressure value is preset according to the actual conditions setting third of watering equipment, such as can third be preset hydraulic pressure value is set as 15kg；According to water
The actual conditions of case and automobile power transmission constant pressure water supply equipment set preset water level value.Use the automobile power taking of the embodiment of the present invention
Device constant-pressure water-supplying control device regulates and controls the Emergency water supply process of automobile power transmission constant pressure water supply equipment.It is closed master switch S4
Afterwards, constant-voltage controller 23 is started to work, in the case that the water level information in water tank meets preset water level value, constant-voltage controller 23
Control third switch S3 is closed the constant-speed-cruise control end to connect ECU in auto cruise control system, is determined using automobile
Fast cruise control system carries out auto-control to engine speed.When the actual hydraulic pressure for detecting pump outlet is 6kg, by
Preset range hydraulic pressure 9kg~11kg is much smaller than in the actual hydraulic pressure of pump outlet, constant-voltage controller 23 controls second switch
S2 is closed increases control port, automobile fixed speed cruise control with the engine speed for connecting ECU in auto cruise control system
System automatically controlled engine oil mass processed increases, and throttle opening increases, and engine speed increases, until the real-time rotating speed of engine
Reach and the matched maximum (top) speed of power takeoff water pump.When water pump highest setting rotating speed is 3000rpm, speedup ratio is 1：When 2, hair
Motivation should be 3000rpm/2=1500rpm with the matched maximum (top) speed of power takeoff water pump.When engine speed reaches
During the maximum matching rotating speed of 1500rpm, control second switch S2 disconnects the hair to end ECU in auto cruise control system
Motivation rotating speed increases control port, and engine is made to keep and the matched maximum (top) speed 1500rpm of power takeoff water pump.Work one section when
Between after, the hydraulic pressure of pump outlet reaches predetermined pressure 11kg, and constant-voltage controller 23 controls first switch S1 to be closed to connect vapour
The engine speed of ECU reduces control port in vehicle constant-speed-cruise control system, and the real-time rotating speed of engine is slowly dropped by 1500rpm
To idling mode 800rpm.When the water consumption increase of user causes the hydraulic pressure of pump outlet to decline and is less than 9kg, in repetition
Process is stated, to realize the target hydraulic pressure of pump outlet being maintained in the range of 9kg~11kg.
Automobile power transmission constant-pressure water-supplying control device provided in an embodiment of the present invention is pumped out by acquiring and analyzing water in real time
The hydraulic pressure information at the mouth of a river and the rotary speed information of water pump driving device, real-time monitoring water pump driving device, i.e. automobile engine turn
Speed, and then the water pump driven by automobile engine and power takeoff is controlled, to keep the water pressure invariableness of pump outlet, avoid automobile
The excessively high caused water supply of hydraulic pressure and the damage of watering equipment that power takeoff supplies water.By setting the first default hydraulic pressure value and second
Default hydraulic pressure value, by the hydraulic pressure control of pump outlet in the range delimited by the first default hydraulic pressure value and the second default hydraulic pressure value
It is interior, the problem of hydraulic pressure is excessively high and hydraulic pressure is insufficient is adjusted in real time.Exceed by the first default hydraulic pressure value when the hydraulic pressure of pump outlet and
During the range that the second default hydraulic pressure value delimited, the cruise deceleration control terminal of automobile is connected in real time or the cruise of automobile increases
Fast control terminal to utilize the rotating speed of the constant speed cruising system adjust automatically automobile engine of automobile itself, and then is controlled by automobile
Engine and the water pump of power takeoff driving realize the water pressure invariableness of pump outlet.In order to protect supply equipment and watering equipment,
Water level sensor is added, to acquire and analyze the water level information in water tank in real time, when water level reaches preset water level value in water tank,
When i.e. water tank inner storing water is more, start water pump driving device externally to supply water；When water level is too low in water tank, switch off the pump driving
Device avoids damage water pump and automobile engine and power takeoff to stop externally supplying water.For the purposes of protection supply equipment and use
Wetting system adds overflow valve, with the pressure information for acquiring in real time and analyzing pump outlet, when pump outlet pressure is excessive
When, in order to avoid continuing, supercharging causes to supply water and watering equipment damage, automatic startup pressure relief device work enhance constant pressure with pressure release
The safety and reliability of water supply.
Automobile power transmission constant-pressure water-supplying control device provided in an embodiment of the present invention can be conveniently and efficiently mounted on any
Power takeoff supplies water and carries in the vehicle of automatic cruising function, without the control circuit of incision automobile, does not influence automobile in itself
Circuit, such as spraying system, ignition system, reliability and safety are higher.
The above embodiments are merely examples for clarifying the description, and is not intended to limit the embodiments.For institute
For the those of ordinary skill in category field, other various forms of variations or change can also be made on the basis of the above description
It is dynamic.There is no necessity and possibility to exhaust all the enbodiments.And the obvious variation or change thus extended out
Among moving still in the protection domain of the invention.
Claims (8)
1. a kind of constant-pressure control device, connect with water pump, which is characterized in that including：
The hydraulic pressure information for detecting the hydraulic pressure information of the pump outlet, and is sent to constant pressure control by pressure sensor
Device processed；
Speed probe, for detecting the rotary speed information for the power plant for driving the pump working, and by the rotary speed information
It is sent to constant-voltage controller；
Constant-voltage controller for receiving the hydraulic pressure information and rotary speed information, and is given birth to according to the hydraulic pressure information and rotary speed information
Constant pressure actuator is sent into control signal, and by the control signal；
Constant pressure actuator for receiving the control signal, and is used to drive the water according to the control signal control
The rotating speed of the power plant of pump work.
2. constant-pressure control device according to claim 1, which is characterized in that the constant-voltage controller is believed according to the hydraulic pressure
Breath and rotary speed information generation control signal, including：
Judge whether the hydraulic pressure information is more than the first default hydraulic pressure value, and it is default to judge whether the hydraulic pressure information is less than second
Hydraulic pressure value；
When the hydraulic pressure information is more than the first default hydraulic pressure value, the constant-voltage controller generation controls the power plant
The first control signal that rotating speed slows down；
When the hydraulic pressure information is less than the second default hydraulic pressure value, the constant-voltage controller generation controls the power plant
The second control signal that rotating speed accelerates.
3. constant-pressure control device according to claim 1 or 2, which is characterized in that described to be used to drive the pump working
Power plant be automobile engine and power takeoff.
4. the constant-pressure control device according to Claims 2 or 3, which is characterized in that the constant pressure actuator includes：First opens
Close (S1) and second switch (S2)；Wherein,
When the hydraulic pressure information is more than the first default hydraulic pressure value, the constant-voltage controller generates to be closed first switch
(S1) first control signal, to connect the deceleration control terminal of automobile by the first switch (S1), to the hair of the automobile
Motivation rotating speed slows down；
When the hydraulic pressure information is less than the second default hydraulic pressure value, the constant-voltage controller generates to be closed second switch
(S2) second control signal, to connect the speedup control terminal of the automobile by the second switch (S2), to the automobile
Engine speed carry out speedup.
5. constant-pressure control device according to claim 4, which is characterized in that further include：
Water level sensor for detecting the water level information in the water tank being connected with the water pump, and the water level information is sent out
It send to constant-voltage controller；
When the water level information is more than preset water level value, constant-voltage controller generation controls the of the power plant operating
Three control signals.
6. constant-pressure control device according to claim 5, which is characterized in that the constant pressure actuator further includes：Third is opened
It closes (S3)；
When the water level information is more than preset water level value, constant-voltage controller generation is for being closed the of third switch (S3)
Three control signals, to connect the constant-speed-cruise control end of the automobile, operate the engine of the automobile.
7. constant-pressure control device according to claim 4, which is characterized in that further include：
Overflow valve, the overflow valve is for receiving the instruction of the constant-voltage controller to open simultaneously pressure release or for receiving
The instruction of constant-voltage controller is stated to close and stop pressure release；
The constant-voltage controller is additionally operable to judge whether the hydraulic pressure information more than third presets hydraulic pressure value；
When the hydraulic pressure information presets hydraulic pressure value more than the third, the constant-voltage controller generates to open overflow valve
To open the overflow valve, pressure release is carried out to the pump outlet for 4th control signal.
8. constant-pressure control device according to claim 1, which is characterized in that further include：
Power supply and master switch (S4), wherein,
Master switch (S4) is for accessing the power supply to start the constant-voltage controller, alternatively, for cutting off the power supply to close
Close the constant-voltage controller.
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| CN201711396235.7A CN108131282A (en) | 2017-12-21 | 2017-12-21 | A kind of constant-pressure control device |
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| CN201711396235.7A CN108131282A (en) | 2017-12-21 | 2017-12-21 | A kind of constant-pressure control device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894966A (en) * | 2018-08-09 | 2018-11-27 | 武汉长江科创科技发展有限公司 | A kind of chemical grouting pump control system of invariable pressure and method |
| CN109268246A (en) * | 2018-09-27 | 2019-01-25 | 东北大学 | Intelligent water pump control system and its application method based on big data characteristic parameter |
| CN113457049A (en) * | 2021-05-27 | 2021-10-01 | 长沙中联消防机械有限公司 | Variable-attitude constant-pressure control method, device and system for boom water cannon and fire fighting truck |
| CN113997933A (en) * | 2021-11-02 | 2022-02-01 | 浙江吉利控股集团有限公司 | Method and device for adjusting rotating speed of power takeoff and computer readable storage medium |
| CN114412767A (en) * | 2022-01-20 | 2022-04-29 | 温岭格朗智能科技有限公司 | Intelligent control method of water pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08338372A (en) * | 1995-04-13 | 1996-12-24 | Ebara Corp | Water feeding device |
| US20090104044A1 (en) * | 2003-12-08 | 2009-04-23 | Koehl Robert M | Pump controller system and method |
| CN101608614A (en) * | 2009-07-31 | 2009-12-23 | 天长市天隆金属制品有限公司 | Fire pump discharge pressure full-automatic balancing system |
| CN102493949A (en) * | 2011-11-30 | 2012-06-13 | 中国科学院自动化研究所 | Fire vehicle water pump control system |
| CN204186480U (en) * | 2014-10-01 | 2015-03-04 | 郑州众智科技股份有限公司 | A kind of engine water pump assembly stable water pressure module |
| CN105507378A (en) * | 2016-01-15 | 2016-04-20 | 昆明理工大学 | Frequency-conversion-type automatic constant-pressure water supplying system and method |
| CN106593843A (en) * | 2017-01-16 | 2017-04-26 | 三禾电器(福建)有限公司 | Constant-pressure automatic operation control method for variable speed electric pump |
| CN206385600U (en) * | 2016-12-27 | 2017-08-08 | 天津大禹节水科技有限公司 | A kind of constant pressure water supply system |
-
2017
- 2017-12-21 CN CN201711396235.7A patent/CN108131282A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08338372A (en) * | 1995-04-13 | 1996-12-24 | Ebara Corp | Water feeding device |
| US20090104044A1 (en) * | 2003-12-08 | 2009-04-23 | Koehl Robert M | Pump controller system and method |
| CN101608614A (en) * | 2009-07-31 | 2009-12-23 | 天长市天隆金属制品有限公司 | Fire pump discharge pressure full-automatic balancing system |
| CN102493949A (en) * | 2011-11-30 | 2012-06-13 | 中国科学院自动化研究所 | Fire vehicle water pump control system |
| CN204186480U (en) * | 2014-10-01 | 2015-03-04 | 郑州众智科技股份有限公司 | A kind of engine water pump assembly stable water pressure module |
| CN105507378A (en) * | 2016-01-15 | 2016-04-20 | 昆明理工大学 | Frequency-conversion-type automatic constant-pressure water supplying system and method |
| CN206385600U (en) * | 2016-12-27 | 2017-08-08 | 天津大禹节水科技有限公司 | A kind of constant pressure water supply system |
| CN106593843A (en) * | 2017-01-16 | 2017-04-26 | 三禾电器(福建)有限公司 | Constant-pressure automatic operation control method for variable speed electric pump |
Non-Patent Citations (1)
| Title |
|---|
| 任亢健: "《家用燃气具及其安装与维修》", 31 July 2008, 中国轻工业出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894966A (en) * | 2018-08-09 | 2018-11-27 | 武汉长江科创科技发展有限公司 | A kind of chemical grouting pump control system of invariable pressure and method |
| CN108894966B (en) * | 2018-08-09 | 2024-01-02 | 武汉长江科创科技发展有限公司 | Constant pressure control system and method for chemical grouting pump |
| CN109268246A (en) * | 2018-09-27 | 2019-01-25 | 东北大学 | Intelligent water pump control system and its application method based on big data characteristic parameter |
| CN113457049A (en) * | 2021-05-27 | 2021-10-01 | 长沙中联消防机械有限公司 | Variable-attitude constant-pressure control method, device and system for boom water cannon and fire fighting truck |
| CN113997933A (en) * | 2021-11-02 | 2022-02-01 | 浙江吉利控股集团有限公司 | Method and device for adjusting rotating speed of power takeoff and computer readable storage medium |
| CN113997933B (en) * | 2021-11-02 | 2024-01-09 | 浙江吉利控股集团有限公司 | Rotation speed adjusting method and device of power takeoff and computer readable storage medium |
| CN114412767A (en) * | 2022-01-20 | 2022-04-29 | 温岭格朗智能科技有限公司 | Intelligent control method of water pump |
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