CN110345367A - A kind of lubricating oil pumping plant charge oil pressure and oil temperature supplying complex automatic control system - Google Patents
A kind of lubricating oil pumping plant charge oil pressure and oil temperature supplying complex automatic control system Download PDFInfo
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- CN110345367A CN110345367A CN201910618505.7A CN201910618505A CN110345367A CN 110345367 A CN110345367 A CN 110345367A CN 201910618505 A CN201910618505 A CN 201910618505A CN 110345367 A CN110345367 A CN 110345367A
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- lubricating oil
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- lubricating
- temperature
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
- F16N29/02—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems for influencing the supply of lubricant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/02—Arrangements for conditioning of lubricants in the lubricating system by cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
- F16N7/40—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems in a closed circulation system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2200/00—Condition of lubricant
- F16N2200/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2250/00—Measuring
- F16N2250/08—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2270/00—Controlling
- F16N2270/20—Amount of lubricant
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Temperature (AREA)
- Feedback Control In General (AREA)
Abstract
The invention belongs to automatic control technology fields, are related to the charge oil pressure and oil temperature supplying complex automatic control system of a kind of lubricating oil pumping plant.Including lubricating oil pumping plant pressure automatic control system and lubricating oil pumping plant oil temperature supplying automatic control system；Lubricating oil pumping plant charge oil pressure automatic control system is able to achieve the control of lubricating oil constant pressure closed loop precision using digital pid (proportional-integral-differential) adjusting method, and pressure target value can be set as needed.Lubricating oil pumping plant oil temperature supplying automatic control system uses digital pid (proportional-integral-differential) adjusting method using another, is able to achieve the control of lubricating oil constant temperature closed loop precision, and temperature target can be set as needed.
Description
Technical field
The invention belongs to automatic control technology field, be related to a kind of lubricating oil pumping plant charge oil pressure and oil temperature supplying it is comprehensive from
Autocontrol system more particularly to a kind of digital charge oil pressure closed-loop control system and oil temperature supplying closed-loop control system.
Background technique
Industrial equipment largely uses oil circulation system (abbreviation lubricating oil pumping plant), and lesser lubricating oil pumping plant is usually adopted
With overflow valve, when pressure is higher than setting pressure, then overflow occurs for overflow valve, to guarantee that downstream pressure is relative constant.It is this
The advantages of method is that structure is simple, easy to accomplish.Disadvantage: (1) being that pressure controling precision is not high；(2) it not can be carried out dynamic realtime
It adjusts；(3) flow influences pressure stability very big, and when flow increases, overflow valve not overflow leads to pressure reduction；(4) warm
Degree has larger impact to pressure stability, and temperature increases, and flow system flow increases, and also results in overflow valve not overflow, causes pressure
It reduces.For biggish lubricating oil pumping plant frequently with frequency-changing control system, this method is that turning for grease pump is adjusted by frequency converter
Speed, and then change lubricating oil charge oil pressure, revolving speed is higher, and charge oil pressure is higher, and revolving speed is lower, and charge oil pressure is lower；Its disadvantage
It is that the device is complicated, cost is higher, is not suitable for the oil circulation system of middle and small scale.
In order to avoid lubricating oil pumping plant oil temperature supplying is excessively high, frequently with water-cooled radiator, profit is reduced by circulation water-cooled
Oil temperature, the typically no automatic temperature control function of traditional water-cooled radiator, it is constant to can not achieve oil temperature supplying.
Summary of the invention
The object of the invention: the charge oil pressure and oil temperature supplying complex automatic control system of a kind of lubricating oil pumping plant are constructed, both
It is able to achieve lubricating oil pressure automatic control, while being able to achieve oil temperature supplying automatic control again.Wherein lubricating oil pumping plant charge oil pressure
Automatic control system realizes the precision control of lubricating oil constant pressure closed loop using digital pid (proportional-integral-differential) adjusting method
System；Lubricating oil pumping plant oil temperature supplying automatic control system is adjusted using another independent digital pid (proportional-integral-differential)
Section method realizes oil temperature supplying Constant closed loop essence by automatically adjusting the flow of radiator cooling water according to practical oil temperature supplying
Close control.
Technical solution of the present invention: a kind of lubricating oil pumping plant charge oil pressure and oil temperature supplying complex automatic control system, it is special
Sign is, including lubricating oil pumping plant pressure automatic control system and lubricating oil pumping plant oil temperature supplying automatic control system；Described
Lubricating oil pumping plant charge oil pressure automatic control system includes grease-box 1, grease pump 3, lubricating structure 8, regulating valve 2, connection
Pipeline, pressure transmitter 4, digitial controller 5, electric signal route；The pressure transmitter 4 is mounted on the lubricating machine
On the lube oil inlet pipe road of structure 8, the regulating valve 2 is mounted on institute by the lateral that the grease pump 3 exports
Between the grease pump outlet stated and grease-box, lubricating oil bypass path is constituted；The pressure transmitter 4 is lubricating structure
8 lubricating oil input pressure is converted to electric signal transmission to the digitial controller 5, passes through in the digitial controller 5
It crosses PID arithmetic and outputs electrical signals to the regulating valve 2, the lubricating oil pumping plant oil temperature supplying automatic control system includes profit
Oil tank 1, grease pump 3, lubricating structure 8, cooling water flow regulating valve 6, water-cooled radiator 7, temperature sensor 9, number control
Device 5 processed；The temperature sensor 9 is mounted on the lube oil inlet pipe road of the lubricating structure, the cooling water flow
Adjustable valve 6 is mounted on 7 inlet duct of water-cooled radiator, lubricating oil oil inlet of the temperature sensor 9 lubricating structure 8
Temperature transition is electric signal transmission to the digitial controller 5.
The PID adjusting method of the lubricating oil pumping plant pressure automatic control system is as follows: 4 Real-time Feedback of pressure transmitter profit
The lubricating oil input pressure of sliding mechanism 8, actuator are electric control valve 2, PID closed loop Isobarically Control are carried out, in digitial controller 5
In PID adjust algorithm it is as follows:
S (k)=S (k-1)+kp [△ P (k)-△ P (k-1)]+ki △ P (k)+kd [- 2 △ P (k-1)+△ P (k- of △ P (k)
2)]
Wherein △ P (k)=D (Ps)-P (k), △ P (k-1)=D (Ps)-P (k-1), △ P (k-2)=D (Ps)-P (k-2),
D (Ps) is the quantized value of corresponding goal pressure (setting value), and P (k) is pressure kth time sample quantization value, and P (k-1) is pressure the
K-1 sample quantization value, P (k-2) are -2 sample quantization values of pressure kth, and △ P (k) is the inclined of kth time sampled value and target value
Difference, △ P (k-1) are the deviations of (k-1) secondary sampled value and target value, and △ P (k-2) is (k-2) secondary sampled value and target value
Deviation, kp is proportional control factor, and ki is integral adjustment coefficient, and kd is differential adjustment factor, and S (k) is kth time adjustment signal
Quantized value, S (k-1) are (k-1) secondary adjustment signal quantized values.
The PID adjusting method of the lubricating oil pumping plant oil temperature supplying automatic control system is as follows: temperature sensor 9 is real-time
The lubricating oil inlet oil temperature of lubricating structure 8 is fed back, actuator is electric control valve 6, the thermostatic control of PID closed loop is carried out, in number
It is as follows that PID in controller 5 adjusts algorithm:
G (k)=G (k-1)+KP [△ T (k)-△ T (k-1)]+KI △ T (k)+KD [- 2 △ T (k-1)+△ T (k- of △ T (k)
2)]
Wherein △ T (k)=D (Ts)-T (k), △ T (k-1)=D (Ts)-T (k-1), △ T (k-2)=D (Ts)-T (k-2),
D (Ts) is the quantized value of corresponding target temperature (setting value), and T (k) is k sample quantization value of temperature control, and T (k-1) is temperature control
K-1 sample quantization value, T (k-2) are k-2 sample quantization values of temperature control, and △ T (k) is the inclined of kth time sampled value and target value
Difference, △ T (k-1) are the deviations of (k-1) secondary sampled value and target value, and △ T (k-2) is (k-2) secondary sampled value and target value
Deviation, KP is proportional control factor, and KI is integral adjustment coefficient, and KD is differential adjustment factor, and G (k) is kth time adjustment signal
Quantized value, G (k-1) are (k-1) secondary adjustment signal quantized values.
In the digitial controller 5, the G (k) being calculated is simulated through " digital quantity/analog quantity " conversion module from another
The amount real-time output regulation signal of delivery outlet acts on the electric control valve 6, adjusts 7 entrance cooling water of radiator by closed loop
Flow realizes the constant target of 8 inlet temperature of lubricating structure.
The flow of lubrication of the bypass path is bigger, then the lubricating oil input pressure of lubricating structure is lower, conversely, bypass
The flow of lubrication in path is smaller, then the lubricating oil input pressure of lubricating structure is higher.
The cooling water flow is bigger, then the lubricating oil inlet oil temperature of lubricating structure is lower, conversely, cooling water flow is got over
Small, then the lubricating oil inlet oil temperature of lubricating structure is higher.
The target value that the lubricating oil input pressure of lubricating structure can be set in the digitial controller 5, passes through feedback
Signal and PID, which are adjusted, changes output signal, acts on regulating valve 2, realizes the control of lubricating oil constant pressure closed loop precision.
The cooling water flow regulating valve 6 is output electrical signals to by PID arithmetic in the digitial controller 5,
The target value that the lubricating oil inlet oil temperature of lubricating structure 8 can be set in the digitial controller 5, is fed back by inlet oil temperature
Signal and PID, which are adjusted, changes output signal, acts on cooling sea water regulating valve 6, realizes the control of fuel feeding constant temperature closed loop precision.
The invention has the advantages that: the lubricating oil pumping plant fuel feeding charge oil pressure and oil temperature supplying synthetical automatic control systems
System, including lubricating oil pumping plant charge oil pressure automatic control system and lubricating oil pumping plant oil temperature supplying automatic control system.
The lubricating oil pumping plant charge oil pressure automatic control system is adjusted using digital pid (proportional-integral-differential)
Section method is able to achieve the control of lubricating oil constant pressure closed loop precision, and pressure target value can be set as needed.
The lubricating oil pumping plant oil temperature supplying automatic control system uses digital pid (ratio-product using another
Point-differential) adjusting method, it is able to achieve the control of lubricating oil constant temperature closed loop precision, and temperature target can be set as needed.
Detailed description of the invention
Fig. 1 is principle of the invention figure,
Fig. 2 is control flow chart of the present invention.
Specific embodiment
Fig. 1 is principle of the invention figure, wherein the lubricating oil pumping plant pressure automatic control system is by grease-box 1, profit
The groups such as oil pump 3, lubricating structure 8, regulating valve 2, connecting pipe, pressure transmitter 4, digitial controller 5, electric signal route
At.Fine line with the arrow indicates the connecting pipe and oil flow direction in figure, and dotted line with the arrow indicates electrical
Signal line and signal transmission direction.Lubricating oil flow path is: after starting lube oil pump, lubricating oil is from the grease-box
1 enter the grease pump 3, a part of lubricating oil from grease pump export through the regulating valve 2 directly flow back to described in
Grease-box 1, a part of lubricating oil export from grease pump and successively flow back to the profit through radiator 7 and the lubricating structure
Oil tank 1.
The pressure transmitter 4 is mounted on the lube oil inlet pipe road of the lubricating structure 8, the regulating valve
2 are mounted between the grease pump outlet and grease-box 1 by the lateral that the grease pump exports, and are constituted
Lubricating oil bypass path.The lubricating oil input pressure of lubricating structure 8 is converted to electric signal (feedback by the pressure transmitter 4
Signal) it is transferred to the digitial controller 5, by PID arithmetic output electric signal (output letter in the digitial controller
Number) regulating valve 2 is arrived, to change control valve opening size, and then change the lubrication of the lubricating oil bypass path
The flow of lubrication of oil stream amount, bypass path is bigger, then the lubricating oil input pressure of lubricating structure is lower, conversely, bypass path
Flow of lubrication it is smaller, then the lubricating oil input pressure of lubricating structure is higher.Profit can be set in the digitial controller 5
The target value of the lubricating oil input pressure of sliding mechanism is adjusted by input pressure feedback signal and PID and changes output signal, effect
In regulating valve 2, the control of lubricating oil constant pressure closed loop precision is realized.
PID adjusting in the lubricating oil pumping plant pressure automatic control system digitial controller is described as follows:
The lubricating oil input pressure of 4 Real-time Feedback lubricating structure 8 of pressure transmitter, actuator are electric control valve 2, are carried out
PID closed loop Isobarically Control, it is as follows that the PID in digitial controller 5 adjusts algorithm:
S (k)=S (k-1)+kp [△ P (k)-△ P (k-1)]+ki △ P (k)+kd [- 2 △ P (k-1)+△ P (k- of △ P (k)
2)]
Wherein △ P (k)=D (Ps)-P (k), △ P (k-1)=D (Ps)-P (k-1), △ P (k-2)=D (Ps)-P (k-2),
D (Ps) is the quantized value of corresponding goal pressure (setting value), and P (k) is pressure kth time sample quantization value, and P (k-1) is pressure the
K-1 sample quantization value, P (k-2) are -2 sample quantization values of pressure kth, and △ P (k) is the inclined of kth time sampled value and target value
Difference, △ P (k-1) are the deviations of (k-1) secondary sampled value and target value, and △ P (k-2) is (k-2) secondary sampled value and target value
Deviation, kp is proportional control factor, and ki is integral adjustment coefficient, and kd is differential adjustment factor, and S (k) is kth time adjustment signal
Quantized value, S (k-1) are (k-1) secondary adjustment signal quantized values.
In digitial controller 5, the S (k) being calculated passes through " digital quantity/analog quantity " conversion module from analog output mouth
Real-time output regulation signal acts on the electric control valve 2, is exported by closed loop adjusting grease pump 3 and directly flows back to lubrication
The flow of lubrication (that is, flow of bypass path) of fuel tank 1 realizes the constant target of 8 inlet pressure of lubricating structure.
As shown in Figure 1, the lubricating oil pumping plant oil temperature supplying automatic control system by grease-box 1, grease pump 3,
It is lubricating structure 8, cooling water flow regulating valve 6, water-cooled radiator 7, connecting pipe, temperature sensor 9, digitial controller 5, electrical
The composition such as signal line.Fine line with the arrow indicates the connecting pipe and oil flow direction in figure, with the arrow
Two-dot chain line indicates cooling water pipeline and flow of cooling water direction, and dotted line with the arrow indicates electric signal route and signal transmission
Direction.Lubricating oil flow path is: after starting lube oil pump, lubricating oil enters the lubricating oil from the grease-box 1
Pump 3, a part of lubricating oil is exported from grease pump directly flows back to the grease-box 1 through the regulating valve 2, a part profit
Lubricating oil exports from grease pump and successively flows back to the grease-box 1 through radiator 7 and the lubricating structure.
The temperature sensor 9 is mounted on the lube oil inlet pipe road of the lubricating structure 8, the cooling water
Flow control valve 6 is mounted on water-cooled radiator inlet duct.Lubricating oil oil inlet of the temperature sensor 9 lubricating structure
Temperature transition is that electric signal (feedback signal) is transferred to the digitial controller 5, is passed through in the digitial controller 5
PID arithmetic exports electric signal (output signal) and arrives the cooling water flow regulating valve 6, to change cooling water flow regulating valve
Opening size, and then change cooling water flow, cooling water flow is bigger, then the lubricating oil inlet oil temperature of lubricating structure is lower, instead
It, cooling water flow is smaller, then the lubricating oil inlet oil temperature of lubricating structure is higher.It can be set in the digitial controller 5
The target value of the lubricating oil inlet oil temperature of lubricating structure is adjusted by inlet oil temperature feedback signal and PID and changes output signal, made
For cooling sea water regulating valve, the control of lubricating oil stationary temperature closed loop precision is realized.
The PID adjusting is described as follows:
The lubricating oil inlet oil temperature of 9 Real-time Feedback lubricating structure 8 of temperature sensor, actuator are electric control valve 6, are carried out
PID closed loop thermostatic control, it is as follows that the PID in digitial controller 5 adjusts algorithm:
G (k)=G (k-1)+KP [△ T (k)-△ T (k-1)]+KI △ T (k)+KD [- 2 △ T (k-1)+△ T (k- of △ T (k)
2)]
Wherein △ T (k)=D (Ts)-T (k), △ T (k-1)=D (Ts)-T (k-1), △ T (k-2)=D (Ts)-T (k-2),
D (Ts) is the quantized value of corresponding target temperature (setting value), and T (k) is k sample quantization value of temperature control, and T (k-1) is temperature control
K-1 sample quantization value, T (k-2) are k-2 sample quantization values of temperature control, and △ T (k) is the inclined of kth time sampled value and target value
Difference, △ T (k-1) are the deviations of (k-1) secondary sampled value and target value, and △ T (k-2) is (k-2) secondary sampled value and target value
Deviation, KP is proportional control factor, and KI is integral adjustment coefficient, and KD is differential adjustment factor, and G (k) is kth time adjustment signal
Quantized value, G (k-1) are (k-1) secondary adjustment signal quantized values.
In digitial controller 5, the G (k) being calculated passes through " digital quantity/analog quantity " conversion module from another analog quantity
The real-time output regulation signal of delivery outlet acts on the electric control valve 6, adjusts the cooling water flow of 7 entrance of radiator by closed loop
Amount realizes the constant target of 8 inlet temperature of lubricating structure.
Fig. 2 is the lubricating oil pumping plant fuel feeding charge oil pressure and oil temperature supplying complex automatic control system control flow
Figure.After system energization, following procedure is successively executed:
(1) digitial controller initialization is first carried out.
(2) effectively whether judgement " start signal ", such as invalid, then recycles waiting；As effectively, then (3) step is executed.
(3) data acquisition, storage, data collected include the charge oil pressure and oil temperature supplying.
(4) " stopping signal " is determined whether, if any then executing shutdown subprogram；Such as nothing, then (5) step is executed.
(5) according to S (k)=S (k-1)+kp [△ P (k)-△ P (k-1)]+ki △ P (k)+kd [- 2 △ P (k-1) of △ P (k)+
△ P (k-2)] S (k) value is calculated, and " digital quantity/analog quantity " conversion module is passed through from output regulation signal when analog output cause for gossip
Act on the electric control valve 2.
(6) according to G (k)=G (k-1)+KP [△ T (k)-△ T (k-1)]+KI △ T (k)+KD [- 2 △ T (k-1) of △ T (k)+
△ T (k-2)] G (k) value is calculated, and adjusted through " digital quantity/analog quantity " conversion module from output when another analog output cause for gossip
Signal function is saved in the electric control valve 6.
(7) (2) step is returned.
Claims (8)
1. a kind of lubricating oil pumping plant charge oil pressure and oil temperature supplying complex automatic control system, which is characterized in that including lubricating oil
Pump station pressure automatic control system and lubricating oil pumping plant oil temperature supplying automatic control system；The lubricating oil pumping plant charge oil pressure
Automatic control system includes grease-box (1), grease pump (3), lubricating structure (8), regulating valve (2), connecting pipe, pressure change
Send device (4), digitial controller (5), electric signal route；The pressure transmitter (4) is mounted on the lubricating structure (8)
Lube oil inlet pipe road on, the regulating valve (2) is mounted on institute by the lateral that the grease pump (3) exports
Between the grease pump outlet stated and grease-box, lubricating oil bypass path is constituted；The pressure transmitter (4) is lubricating machine
The lubricating oil input pressure of structure (8) is converted to electric signal transmission to the digitial controller (5), in the digitial controller
(5) regulating valve (2) is output electrical signals in by PID arithmetic, the lubricating oil pumping plant oil temperature supplying automatically controls
System includes grease-box (1), grease pump (3), lubricating structure (8), cooling water flow regulating valve (6), water-cooled radiator
(7), temperature sensor (9), digitial controller (5)；The temperature sensor (9) is mounted on the lubrication of the lubricating structure
On oily inflow pipeline, the cooling water flow regulating valve (6) is mounted on water-cooled radiator (7) inlet duct, the temperature
It spends sensor (9) and the lubricating oil inlet oil temperature of lubricating structure (8) is converted to electric signal transmission to the digitial controller
(5)。
2. a kind of lubricating oil pumping plant charge oil pressure as described in claim 1 and oil temperature supplying complex automatic control system, special
Sign is that the PID adjusting method of the lubricating oil pumping plant pressure automatic control system is as follows: pressure transmitter (4) Real-time Feedback
The lubricating oil input pressure of lubricating structure (8), actuator are electric control valve (2), PID closed loop Isobarically Control are carried out, in number
It is as follows that PID in controller (5) adjusts algorithm: S (k)=S (k-1)+kp [△ P (k)-△ P (k-1)]+ki △ P (k)+kd [△ P
(k)-2△P(k-1)+△P(k-2)]
Wherein △ P (k)=D (Ps)-P (k), △ P (k-1)=D (Ps)-P (k-1), △ P (k-2)=D (Ps)-P (k-2), D
(Ps) be corresponding goal pressure (setting value) quantized value, P (k) is pressure kth time sample quantization value, and P (k-1) is pressure kth-
1 sample quantization value, P (k-2) are -2 sample quantization values of pressure kth, and △ P (k) is the inclined of kth time sampled value and target value
Difference, △ P (k-1) are the deviations of (k-1) secondary sampled value and target value, and △ P (k-2) is (k-2) secondary sampled value and target value
Deviation, kp is proportional control factor, and ki is integral adjustment coefficient, and kd is differential adjustment factor, and S (k) is kth time adjustment signal
Quantized value, S (k-1) are (k-1) secondary adjustment signal quantized values.
3. a kind of lubricating oil pumping plant charge oil pressure as described in claim 1 and oil temperature supplying complex automatic control system, special
Sign is that the PID adjusting method of the lubricating oil pumping plant oil temperature supplying automatic control system is as follows: temperature sensor (9) is real
When feed back lubricating structure (8) lubricating oil inlet oil temperature, actuator be electric control valve (6), carry out the thermostatic control of PID closed loop,
It is as follows that PID in digitial controller (5) adjusts algorithm:
G (k)=G (k-1)+KP [△ T (k)-△ T (k-1)]+KI △ T (k)+KD [- 2 △ T (k-1)+△ T (k-2) of △ T (k)]
Wherein △ T (k)=D (Ts)-T (k), △ T (k-1)=D (Ts)-T (k-1), △ T (k-2)=D (Ts)-T (k-2), D
(Ts) be corresponding target temperature (setting value) quantized value, T (k) is k sample quantization value of temperature control, and T (k-1) is temperature control k-
1 sample quantization value, T (k-2) are k-2 sample quantization values of temperature control, and △ T (k) is the inclined of kth time sampled value and target value
Difference, △ T (k-1) are the deviations of (k-1) secondary sampled value and target value, and △ T (k-2) is (k-2) secondary sampled value and target value
Deviation, KP is proportional control factor, and KI is integral adjustment coefficient, and KD is differential adjustment factor, and G (k) is kth time adjustment signal
Quantized value, G (k-1) are (k-1) secondary adjustment signal quantized values.
4. a kind of lubricating oil pumping plant charge oil pressure as described in claim 1 and oil temperature supplying complex automatic control system, special
Sign is that the G (k) that the digitial controller (5) is calculated passes through " digital quantity/analog quantity " conversion module from another analog quantity
The real-time output regulation signal of delivery outlet acts on the electric control valve (6), and it is cooling to adjust radiator (7) entrance by closed loop
Water flow realizes the constant target of lubricating structure (8) inlet temperature.
5. a kind of lubricating oil pumping plant charge oil pressure as described in claim 1 and oil temperature supplying complex automatic control system, special
Sign is that the flow of lubrication of the bypass path is bigger, then the lubricating oil input pressure of lubricating structure is lower, conversely, bypass
The flow of lubrication in path is smaller, then the lubricating oil input pressure of lubricating structure is higher.
6. a kind of lubricating oil pumping plant charge oil pressure as described in claim 1 and oil temperature supplying complex automatic control system, special
Sign is that the cooling water flow is bigger, then the lubricating oil inlet oil temperature of lubricating structure is lower, conversely, cooling water flow is smaller,
Then the lubricating oil inlet oil temperature of lubricating structure is higher.
7. a kind of lubricating oil pumping plant charge oil pressure as described in claim 1 and oil temperature supplying complex automatic control system, special
Sign is, the target value of the lubricating oil input pressure of lubricating structure can be set in the digitial controller (5), passes through feedback
Signal and PID, which are adjusted, changes output signal, acts on regulating valve (2), realizes the control of lubricating oil constant pressure closed loop precision.
8. a kind of lubricating oil pumping plant charge oil pressure as described in claim 1 and oil temperature supplying complex automatic control system, special
Sign is, outputs electrical signals to the cooling water flow regulating valve by PID arithmetic in the digitial controller (5)
(6), the target value that the lubricating oil inlet oil temperature of lubricating structure (8) can be set in the digitial controller (5), passes through oil inlet
Temperature feedback signal and PID, which are adjusted, changes output signal, acts on cooling sea water regulating valve (6), realizes that fuel feeding constant temperature closed loop is accurate
Control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910618505.7A CN110345367A (en) | 2019-07-09 | 2019-07-09 | A kind of lubricating oil pumping plant charge oil pressure and oil temperature supplying complex automatic control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910618505.7A CN110345367A (en) | 2019-07-09 | 2019-07-09 | A kind of lubricating oil pumping plant charge oil pressure and oil temperature supplying complex automatic control system |
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| CN110345367A true CN110345367A (en) | 2019-10-18 |
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| CN201910618505.7A Pending CN110345367A (en) | 2019-07-09 | 2019-07-09 | A kind of lubricating oil pumping plant charge oil pressure and oil temperature supplying complex automatic control system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238820A (en) * | 2020-03-25 | 2020-06-05 | 中国航发哈尔滨东安发动机有限公司 | Lubricating oil pump fire-proof test equipment |
| CN112610874A (en) * | 2020-12-22 | 2021-04-06 | 重庆邮电大学 | Thin oil lubricating system and control method thereof |
| CN112904915A (en) * | 2021-03-08 | 2021-06-04 | 北京理工大学 | PID parameter setting temperature control experiment teaching device and method |
| CN114321725A (en) * | 2021-12-13 | 2022-04-12 | 中航工程集成设备有限公司 | High-pressure closed high-temperature circulating water supply device |
| CN116533059A (en) * | 2023-05-04 | 2023-08-04 | 广州和兴机电科技有限公司 | Oil supply system of numerical control machine tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112904915A (en) * | 2021-03-08 | 2021-06-04 | 北京理工大学 | PID parameter setting temperature control experiment teaching device and method |
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| CN114321725A (en) * | 2021-12-13 | 2022-04-12 | 中航工程集成设备有限公司 | High-pressure closed high-temperature circulating water supply device |
| CN116533059A (en) * | 2023-05-04 | 2023-08-04 | 广州和兴机电科技有限公司 | Oil supply system of numerical control machine tool |
| CN116533059B (en) * | 2023-05-04 | 2023-10-20 | 广州和兴机电科技有限公司 | Oil supply system of numerical control machine tool |
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