CN108194336A - Pressure control valve group for debugging pumping equipment, automatic debugging system, pumping equipment and automatic debugging method - Google Patents
Pressure control valve group for debugging pumping equipment, automatic debugging system, pumping equipment and automatic debugging method Download PDFInfo
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- CN108194336A CN108194336A CN201711444134.2A CN201711444134A CN108194336A CN 108194336 A CN108194336 A CN 108194336A CN 201711444134 A CN201711444134 A CN 201711444134A CN 108194336 A CN108194336 A CN 108194336A
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- 238000005086 pumping Methods 0.000 title claims abstract description 146
- 238000000034 method Methods 0.000 title claims description 32
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000003921 oil Substances 0.000 claims description 5
- 238000012790 confirmation Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 1
- 230000002045 lasting effect Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 20
- 230000001105 regulatory effect Effects 0.000 abstract 3
- 230000001276 controlling effect Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 3
- 239000012736 aqueous medium Substances 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
Classifications
-
- 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
- F04B49/002—Hydraulic systems to change the pump delivery
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention provides a pressure control valve group for debugging pumping equipment, which comprises a plurality of flow regulating valves and overflow valves connected between a water inlet pipeline and a water outlet pipeline, wherein the flow regulating valves and the overflow valves are connected in parallel, and are driven by stepping motors; the pressure control valve group also comprises a pressure control module for controlling the action of the stepping motor. Through setting up the through-flow cross-sectional area that pressure control module control step motor moved and can adjust flow control valve and overflow valve for can automatically regulated required simulated load pressure, make pumping equipment's pump water debugging become high-efficient, safe and accurate.
Description
Technical field
The present invention relates to a kind of hydraulic debugging technologies, and in particular, to a kind of pressure-control valve group for pumping equipment,
Automatic debugging system, pumping equipment and automatic adjustment method.
Background technology
It is most of at present to change concrete pumping equipment (such as concrete mixer, Vehicle loaded pump, drag pump, cement mortar pump) production
The hydraulic system of pump that producer uses is using the water valve of complete mechanical ball-valve structure, is debugged in the water pumping of pumping equipment
Mainly by the aperture of manual regulation ball valve in journey, the load that simulation concrete medium is exported as pumping unit is adjusted simultaneously
The displacement value of main pump machinery constant power device or main pump is saved, reaches the debugging purpose for making main pump invariable power.Wherein, due to machinery
The water valve tuning linearity of formula ball-valve structure is poor, easily causes load pressure mutation, is easy to cause water valve and is gone out by high pressure water, pacifies
Overall coefficient is low；And full debugging process is completely dependent on the skilled operation degree of commissioning staff, and whole efficiency is low.The present invention is suitable for
Pumping equipment containing double oil cylinders or single cylinder pumping unit, such as your native pump truck, Vehicle loaded pump, drag pump, cement mortar pump are mixed, mainly
It pumps debugging automatically for pumping system, debugging efficiency and accuracy is turned up.
Invention content
The present invention provide it is a kind of for the pressure-control valve group of pumping equipment, automatic debugging system, pumping equipment and automatically
Adjustment method can improve debugging efficiency, accuracy and the safety of pumping equipment, and the work for reducing commissioning staff is strong
Degree.
In order to achieve the object of the present invention, pressure-control valve group for being used for pumping equipment debugging, including being connected into water
Multiple flow control valves and overflow valve between pipeline and outlet pipeline, the multiple flow control valve and the overflow valve are mutual
Parallel connection, and the multiple flow control valve and the overflow valve are driven by stepper motor；The pressure-control valve group further includes
Control the pressure control module of the stepper motor action.
Preferably, the pressure-control valve group further includes the flow detecting element being connected on the inlet pipeline and pressure
Detecting element, the pressure control module are connect with the flow detecting element and the pressure detecting element signal.
Preferably, any one or more in the multiple flow control valve use the needle valve structure with check function.
Preferably, the overflow valve is big flow overflow valve, and the spool of the big flow overflow valve and valve body are by stainless
Steel material is made.
The present invention also provides a kind of automatic debugging system for pumping equipment, including providing hydraulic pressure for pumping executing agency
The main pump of oil, the discharge capacity proportioning valve being connect with the main pump connect to detect the main pump with the oil outlet pipe of the main pump
It the main pump pressure sensor of operating pressure and is connect with the main pump pressure sensor and the discharge capacity ratio valve signal with root
The pumping controller of the discharge capacity electric current of the main pump is controlled according to the operating pressure of the main pump；Further include the pressure in said program
Control valve group, the pressure control module in the pressure-control valve group are connect with the pumping controller signals.
The present invention also provides a kind of pumping equipment, which includes the automatic debugging system in said program.
The present invention also provides a kind of automatic adjustment method for pumping equipment, the pumping equipment is in said program
Pumping equipment, the automatic adjustment method include the unloaded pumping debugging stage, and the unloaded pumping debugging stage includes following step
Suddenly：
Step S10：After confirming that unloaded pumping debugging starts, the pressure control module controls the stepper motor to move
Make, so that the valve opening of the multiple flow control valve and the overflow valve is maximum；
Step S12：The pumping controller controls the pumping equipment zero load to pump；
Step S14：The flow signal and pressure detecting that the pressure control module real-time reception flow detecting element is sent
The flow signal is simultaneously sent to the pumping controller by the pressure signal of element transmission；
Step S16：The pumping controller receives the flow signal and judges whether the flow signal reaches setting
Unloaded pumping side measure, when judging result is no, the electric current of the discharge capacity proportioning valve is adjusted, until the flow signal reaches
Unloaded pumping side's amount of setting.
Preferably, the automatic adjustment method further includes the loading pumping debugging stage, and the loading pumping debugging stage exists
The unloaded pumping debugging stage carries out after completing, and the loading pumping debugging stage includes the following steps：
Step S30：Pressure control module control stepper motor action, opens the valve of multiple flow control valves and overflow valve
Degree gradually becomes smaller, and when the operating pressure for judging main pump reaches setting value Pi, stops control stepper motor action；
Step S40：The electric current Ii that controller controls to adjust discharge capacity proportioning valve is pumped, when the flow detection member for judging to receive
When the flow signal of part detection reaches the pumping side amount Qi of setting, stop adjusting the electric current of the discharge capacity proportioning valve；
Step S50：The pumping controller control pumping equipment is carried with operating point (Pi, Qi) band pumps setting time；
Step S60：Step S30 and step S40 are repeated, the pumping controller obtains multigroup (Pi, Ii), passes through plan
Pumping invariable power curve is obtained after closing interpolation.
Preferably, it is further comprising the steps of before step S30：
Step S20：After confirmation band carries pumping debugging beginning and is equipped with pressure-control valve group, pressure control module control
Stepper motor acts, so that the valve opening of multiple flow control valves and overflow valve is maximum；
Step S21：Controller control pumping equipment zero load is pumped to pump.
Step S22：The flow signal and pressure detecting element that pressure control module real-time reception flow detecting element is sent
The pressure signal of transmission simultaneously controls stepper motor to act, and changes the valve opening of multiple flow control valves and overflow valve；
Step S23：The operating pressure signal of pressure control module real-time reception main pump, when the working pressure for judging main pump
When reaching invariable power pressure regulation force value P0, stop control stepper motor action；
Step S24：The operating pressure signal of controller real-time reception main pump is pumped, when the working pressure for judging main pump reaches
When playing pressure regulation force value P0 to invariable power, the electric current of the discharge capacity proportioning valve is adjusted；
Step S25：The flow signal that controller real-time reception pressure control module is sent is pumped, when judging that the flow believes
When number reaching the pumping side amount Q0 of operating point, stop adjusting the electric current I0 of the discharge capacity proportioning valve；
Step S26:The pumping controller control pumping equipment is carried with tune point (P0, a Q0) band and pumps setting time.
Preferably, the automatic adjustment method further includes：
Step S70：The pressure signal that controller real-time reception pressure control module is sent is pumped, when judging that pressure signal surpasses
When crossing the highest threshold values of setting and continuing preset time, control pumping equipment alarms and stops debugging.
Through the above technical solutions, since the pressure-control valve group of the present invention can adjust the big of load pressure as needed
It is small, and when automatic water pumping debugging of the pressure-control valve group for pumping equipment, pressure control module simulates pumping equipment institute
The load pressure needed, the discharge capacity that pumping controller adjusts main pump realize the debugging of main pump invariable power, and whole process is by pressure-control valve
Group and the automatic progress of pumping controller joint, precision is high, efficient, safe, saves water resource, and batch cost is low.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is to be used to provide further understanding of the present invention, and a part for constitution instruction, with following tool
Body embodiment is used to explain the present invention, but be not construed as limiting the invention together.In the accompanying drawings：
Fig. 1 is the structure diagram of the pressure-control valve group provided in an embodiment of the present invention for pumping equipment debugging；
Fig. 2 is the structure diagram provided in an embodiment of the present invention for pumping equipment automatic debugging system；
Fig. 3 is a kind of flow diagram of automatic adjustment method for pumping equipment provided in an embodiment of the present invention；
Fig. 4 is the flow diagram of another automatic adjustment method for pumping equipment provided in an embodiment of the present invention.
Specific embodiment
The specific embodiment of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
With reference to figure 1, in a preferred embodiment of the present invention, the present invention provides a kind of pressure control for pumping equipment debugging
Valve group, the device include the multiple flow control valve 1.1-1.6 and the overflow valve that are connected between inlet pipeline 5 and outlet pipeline 7
2, multiple flow control valve 1.1-1.6 and overflow valve 2 are parallel with one another, and multiple flow control valve 1.1-1.6 and overflow valve 2 are by step
Stepper motor M1-M7 drives；Pressure-control valve group further includes the pressure control module 8 of control stepper motor M1-M7 actions.It is preferred that
Ground, pressure-control valve group further include the flow detecting element 3 being connected on inlet pipeline 5 and pressure detecting element 4, pressure control
Module 8 is connect with flow detecting element 3 and 4 signal of pressure detecting element.
In the above-mentioned technical solutions, each stepper motor is controlled to act by pressure control module 8, so as to make multiple flow tune
The valve opening of section valve and overflow valve can change so that into the water of pressure-control valve group or the cross-sectional flow area of other media
Variation so as to which the load pressure of simulation can be adjusted, realizes the automation control of pumping equipment debugging, and efficiency and safety
Effective promotion is obtained.Particularly, flow detecting element and the flow of pressure detecting element detection inlet pipeline inlet
And pressure, pressure control module 8 by real-time reception to flow signal and pressure signal accurately control each stepper motor
Action so that the adjusting process of load pressure is more accurate and more efficient.Wherein, flow detecting element can be flowmeter,
Pressure detecting element can be pressure sensor.
In embodiment provided by the invention, pressure-control valve group includes six flow control valves parallel with one another, preferably
, which uses needle valve structure, and with non-return structure so that the flow-rate adjustment linearity of each flow control valve
Preferably, the fine tuning of flow can be carried out, the valve rod of six flow control valves is driven by stepper motor M1-M6 to be rotated, stepper motor band
Encoder output, six flow control valves are installed in six branch lines between inlet pipeline 5 and outlet pipeline 7.It is more excellent
Selection of land, overflow valve 2 is big flow overflow valve, and pilot stage control plunger-type structure, spool, valve body can be used in big flow overflow valve
Generally use stainless steel, preventing from working for a long time in aqueous medium, it is stuck to get rusty, and valve rod is driven by powerful stepper motor M7
Dynamic rotation, stepper motor band encoder output, big flow overflow valve are installed on the branch between inlet pipeline 5 and outlet pipeline 7
In pipeline.
In the above-mentioned preferred embodiment of the present invention, for pumping equipment during debugging, pressure control module is real-time
The flow signal and pressure signal received, pressure-control valve is realized by the adjusting of the valve opening to big flow overflow valve
The coarse adjustment of the load pressure of group, the fine tuning for realizing the load pressure of pressure-control valve group by adjusting six flow control valves,
The two matches, and can accurately control cross-sectional flow area, so as to obtain the target pressure value of demand.
With reference to figure 2, the present invention also provides a kind of automatic debugging system for pumping equipment, which is pump
Executing agency is sent to provide the main pump (not shown) of hydraulic oil, the discharge capacity proportioning valve 23 being connect with main pump, the oil outlet pipe with main pump
Connection with detect main pump operating pressure main pump pressure sensor 21 and with main pump pressure sensor 21 and discharge capacity proportioning valve
The connection of 23 signals is with the pumping controller 22 of the discharge capacity electric current according to the operating pressure of main pump control main pump；The automatic debugging system
Further include the pressure-control valve group of above-mentioned offer, the pressure control module 8 in pressure-control valve group and pumping 22 signal of controller
Connection.
In above-mentioned automatic debugging system, the load pressure of needs is simulated by pressure-control valve group, pumps controller 22
The discharge capacity of main pump can be adjusted in real time according to the main pump operating pressure of acquisition and the flow signal obtained in pressure-control valve group
Proportioning valve 23 realizes the debugging of main pump invariable power, and the pumping side that the rate-of flow by pressure-control valve group is made to reach design is measured
Value.
Correspondingly, with reference to figure 3 and Fig. 4, the present invention also provides a kind of automatic adjustment methods for pumping equipment, this is automatic
Adjustment method is in the automatic debugging system of above-mentioned offer.Specifically, pumping unit pumps debugging process including unloaded automatically
The amount debugging of pumping side and the amount debugging of loading pumping side.Correspondingly, as shown in figure 3, automatic adjustment method provided by the invention includes
Zero load pumping debugging stage, zero load pumping debugging stage include the following steps：
Step S10：After confirming that unloaded pumping debugging starts, pressure control module 8 controls stepper motor M1-M7 actions,
So that the valve opening of multiple flow control valve 1.1-1.6 and overflow valve 2 is maximum；
Step S12：Pumping controller 22 controls 10 grades of pumping equipment is unloaded to pump；
Step S14：Flow signal and the pressure detecting member that 8 real-time reception flow detecting element 3 of pressure control module is sent
Flow signal is simultaneously sent to pumping controller 22 by the pressure signal of the transmission of part 4；
Step S16：Pump 22 real-time reception flow signal of controller；
Step S18：Pumping controller 22 judges whether flow signal reaches unloaded pumping side's amount of setting, works as judging result
When being no, the electric current of Displacement Regulation proportioning valve 23, until flow signal reaches unloaded pumping side's amount of setting.
The purpose of above-mentioned unloaded pumping debugging is to determine the initial main pump maximum pump discharge current value Imax under light condition.It is logical
Excess pressure control module 8 controls stepper motor M1-M7 actions, makes each valve opening in pressure-control valve group maximum, water in valve group
Pressure load is minimum, so as to simulation no-load operating mode, the control electric current for adjusting the discharge capacity proportioning valve 23 of main pump by pumping controller 22,
So as to which the aqueous medium flow (i.e. pumping side is measured) in pressure-control valve group be made to reach design value.Wherein, pumping equipment is also not necessarily limited to
10 grades of unloaded water pumpings, can also be pumped with other gears.
Further, with reference to figure 4, automatic adjustment method further includes the loading pumping debugging stage, and the loading pumping debugging stage exists
The zero load pumping debugging stage carries out after completing, and includes the following steps：
Step S30：Pressure control module 8 controls stepper motor M1-M7 action, make multiple flow control valve 1.1-1.6 and
The valve opening of overflow valve 2 gradually becomes smaller, and when the operating pressure for judging main pump reaches setting value Pi, stops control stepper motor
M1-M7 is acted；
Step S40：The electric current Ii that controller 22 controls to adjust discharge capacity proportioning valve is pumped, when the flow detection that judgement receives
When the flow signal of element testing reaches the pumping side amount Qi of setting, stop adjusting the electric current of the discharge capacity proportioning valve；
Step S50：The pumping controller control pumping equipment is carried with operating point (Pi, Qi) band pumps setting time；
Step S60：Step S30 and step S40 are repeated, pumping controller 22 obtains multigroup (Pi, Ii), passes through fitting
Pumping invariable power curve is obtained after interpolation.
It is further comprising the steps of before step S30 in the preferred embodiment of the present invention：
Step S20：After confirmation band carries pumping debugging beginning and is equipped with pressure-control valve group, pressure control module 8 is controlled
Stepper motor M1-M7 actions processed, so that the valve opening of multiple flow control valve 1.1-1.6 and overflow valve 2 is maximum；
Step S21：Pump the 10 grades of unloaded water pumpings of controller control pumping equipment；
Step S22：Flow signal and the pressure detecting member that 8 real-time reception flow detecting element 3 of pressure control module is sent
The pressure signal of the transmission of part 4 simultaneously controls stepper motor M1-M7 to act, and makes the valve of multiple flow control valve 1.1-1.6 and overflow valve 2
Door aperture variation；
Step S23：The operating pressure signal of 8 real-time reception main pump of pressure control module, when the operating pressure for judging main pump
When value reaches invariable power pressure regulation force value P0, stop the M1-M7 actions of control stepper motor；
Step S24：The operating pressure signal of 22 real-time reception main pump of controller is pumped, when the working pressure for judging main pump
When reaching invariable power pressure regulation force value P0, the electric current of the discharge capacity proportioning valve is adjusted；
Step S25：The flow signal that controller 22 real-time reception pressure control module 8 is sent is pumped, when judging the stream
When amount signal reaches the pumping side amount Q0 of operating point, stop adjusting the electric current I0 of the discharge capacity proportioning valve；
Step S26:Pumping controller controls pumping equipment to carry water pumping setting time with tune point (P0, a Q0) band.
In above-mentioned preferred embodiment, the purpose of loading pumping debugging is to determine master under the different operating pressure p i of main pump
The discharge capacity current value Ii of pump after obtaining multigroup (Pi, Ii), completes setting and storage by pumping controller, is obtained after fitting
Practical pumping invariable power curve.In practical automatic adjustment method, after pumping invariable power curve is obtained, pressure control module
Each stepper motor M1-M7 can be controlled to act, make the valve opening of multiple flow control valves and overflow valve maximum, make to debug automatically
System returns to initial state, pressure-control valve group is finally dismantled, to terminate the automatic debugging process of pumping equipment.
It is worth mentioning, above-mentioned pumping controller control pumping equipment adjusts point (P0, Q0) or with operating point (Pi, Qi) to rise
It can be set as 1 hour with the time for carrying water pumping.
Preferably, automatic adjustment method, which further includes, is automatically stopped step, which is specially：Step S70：Pump controller
22 real-time reception pressure control modules 8 send pressure signal, when judge pressure signal be more than setting highest threshold values and persistently
During preset time, control pumping equipment alarms and stops debugging.
By above-mentioned automatic adjustment method, the practical pumping invariable power curve of pumping equipment, the full mistake of this method can be obtained
Journey combines automatic progress by the pressure control module of pressure-control valve group with pumping controller, and precision is high, efficient, saves water
Resource, batch cost are low.Meanwhile when the load pressure that pressure-control valve group is adjusted is more than the highest threshold values of setting, and more than most
High threshold values certain time, pumping equipment will alarm, and automatic pause experiment, guarantee test carries out safely.It should be understood that setting
Highest threshold values and preset time all in accordance with actual needs depending on.
The present invention also provides a kind of pumping equipments for including above-mentioned automatic debugging system.
To sum up, compared with the method by commissioning staff's manual operation machinery ball valve, provided by the present invention for pumping
Labor intensive that the pressure-control valve group of equipment debugging solves traditional artificial water adjusting valve is high, process is cumbersome, high pressure water
The problems such as Task of Debugging is dangerous.
The preferred embodiment of the present invention is described in detail above in association with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical scheme of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (10)
1. a kind of pressure-control valve group for pumping equipment debugging, which is characterized in that the pressure-control valve group includes connection
Multiple flow control valves and overflow valve, the multiple flow control valve and the overflow between inlet pipeline and outlet pipeline
Valve is parallel with one another, and the multiple flow control valve and the overflow valve are driven by stepper motor；The pressure-control valve group
Further include the pressure control module for controlling the stepper motor action.
2. pressure-control valve group according to claim 1, which is characterized in that the pressure-control valve group, which further includes, to be connected to
Flow detecting element and pressure detecting element on the inlet pipeline, the pressure control module and the flow detecting element
It is connected with the pressure detecting element signal.
3. pressure-control valve group according to claim 2, which is characterized in that any one in the multiple flow control valve
It is or multiple using the needle valve structure with check function.
4. pressure-control valve group according to claim 3, which is characterized in that the overflow valve is big flow overflow valve, and
The spool and valve body of the big flow overflow valve are made of stainless steel.
5. a kind of automatic debugging system for pumping equipment, which is characterized in that the automatic debugging system includes holding for pumping
Row mechanism provide hydraulic oil main pump, the discharge capacity proportioning valve being connect with the main pump, connect with the oil outlet pipe of the main pump with
Detect the operating pressure of the main pump main pump pressure sensor and with the main pump pressure sensor and the discharge capacity ratio
Valve signal connection is with the pumping controller of the discharge capacity electric current according to the operating pressure of the main pump control main pump；
The automatic debugging system further includes claim 1-4 any one of them pressure-control valve groups, the pressure-control valve
The pressure control module in group is connect with the pumping controller signals.
6. a kind of pumping equipment, which is characterized in that the pumping equipment includes the automatic debugging system described in claim 5.
7. a kind of automatic adjustment method for pumping equipment, which is characterized in that the pumping equipment is described in claim 6
Pumping equipment, the automatic adjustment method include the unloaded pumping debugging stage, and the unloaded pumping debugging stage includes following step
Suddenly：
Step S10：After confirming that unloaded pumping debugging starts, the pressure control module controls the stepper motor action, with
Make the valve opening of the multiple flow control valve and the overflow valve maximum；
Step S12：The pumping controller controls the pumping equipment zero load to pump；
Step S14：The flow signal and pressure detecting element that the pressure control module real-time reception flow detecting element is sent
The flow signal is simultaneously sent to the pumping controller by the pressure signal of transmission；
Step S16：Flow signal described in the pumping controller real-time reception simultaneously judges whether the flow signal reaches setting
Unloaded pumping side measure, when judging result is no, the electric current of the discharge capacity proportioning valve is adjusted, until the flow signal reaches
Unloaded pumping side's amount of setting.
8. automatic adjustment method according to claim 7, which is characterized in that the automatic adjustment method further includes load pump
Debugging stage, the loading pumping debugging stage is sent to be carried out after being completed in the unloaded pumping debugging stage, the load pump
The debugging stage is sent to include the following steps：
Step S30：Pressure control module control stepper motor action, make the valve opening of multiple flow control valves and overflow valve by
Step becomes smaller, and when the operating pressure for judging main pump reaches setting value Pi, stops control stepper motor action；
Step S40：The electric current Ii that controller controls to adjust discharge capacity proportioning valve is pumped, when the flow detecting element inspection for judging to receive
When the flow signal of survey reaches the pumping side amount Qi of setting, stop adjusting the electric current of the discharge capacity proportioning valve；
Step S50：The pumping controller control pumping equipment is carried with operating point (Pi, Qi) band pumps setting time；
Step S60：Step S30 and step S40 are repeated, the pumping controller obtains multigroup (Pi, Ii), inserted by being fitted
Pumping invariable power curve is obtained after value.
9. automatic adjustment method according to claim 8, which is characterized in that further comprising the steps of before step S30：
Step S20：After confirmation band carries pumping debugging beginning and is equipped with pressure-control valve group, pressure control module control stepping
Motor action, so that the valve opening of multiple flow control valves and overflow valve is maximum；
Step S21：Controller control pumping equipment zero load is pumped to pump；
Step S22：The flow signal and pressure detecting element that pressure control module real-time reception flow detecting element is sent are sent
Pressure signal and stepper motor is controlled to act, make the valve opening of multiple flow control valves and overflow valve change；
Step S23：The operating pressure signal of pressure control module real-time reception main pump, when the working pressure for judging main pump reaches
When invariable power plays pressure regulation force value P0, stop control stepper motor action；
Step S24：The operating pressure signal of controller real-time reception main pump is pumped, when the working pressure for judging main pump reaches permanent
When power plays pressure regulation force value P0, the electric current of the discharge capacity proportioning valve is adjusted；
Step S25：The flow signal that controller real-time reception pressure control module is sent is pumped, when judging that the flow signal reaches
When measuring Q0 to the pumping side of operating point, stop adjusting the electric current I0 of the discharge capacity proportioning valve；
Step S26:The pumping controller control pumping equipment is carried with tune point (P0, a Q0) band and pumps setting time.
10. automatic adjustment method according to claim 9, which is characterized in that the automatic adjustment method further includes：
Step S70：The pressure signal that controller real-time reception pressure control module is sent is pumped, when judging pressure signal more than setting
When fixed highest threshold values and lasting preset time, control pumping equipment alarms and stops debugging.
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| CN201711444134.2A CN108194336B (en) | 2017-12-27 | 2017-12-27 | Pressure control valve group for debugging pumping equipment, automatic debugging system, pumping equipment and automatic debugging method |
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| CN108194336B CN108194336B (en) | 2019-10-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113057020A (en) * | 2021-04-02 | 2021-07-02 | 中国铁建重工集团股份有限公司 | Method, system, device and medium for controlling rotation speed of collecting head |
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| CN108194336B (en) | 2019-10-18 |
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Address after: 415106 Guanxi Town, Dingcheng District, Changde City, Hunan Province Patentee after: Hunan Xiangjian Heavy Industry Technology Co.,Ltd. Address before: 415106 Guanxi Town, Dingcheng District, Changde City, Hunan Province Patentee before: HUNAN XIANGJIAN HEAVY INDUSTRY TECHNOLOGY CO.,LTD. |
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Denomination of invention: Pressure control valve group, automatic debugging system, pumping equipment and automatic debugging method for pumping equipment debugging Granted publication date: 20191018 Pledgee: Agricultural Bank of China Limited Changde branch Pledgor: Hunan Xiangjian Heavy Industry Technology Co.,Ltd. Registration number: Y2024980001561 |