CN112460103B - Oil liquid temperature control method and device - Google Patents
Oil liquid temperature control method and device Download PDFInfo
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- CN112460103B CN112460103B CN202011409381.0A CN202011409381A CN112460103B CN 112460103 B CN112460103 B CN 112460103B CN 202011409381 A CN202011409381 A CN 202011409381A CN 112460103 B CN112460103 B CN 112460103B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
- F15B21/0423—Cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
- F15B21/0427—Heating
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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
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/04—Arrangements for conditioning of lubricants in the lubricating system by heating
-
- 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
- F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration
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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
- F16N2270/00—Controlling
- F16N2270/50—Condition
- F16N2270/56—Temperature
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Control Of Temperature (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention provides an oil temperature control method and device, and the method comprises the following steps: judging whether the first current temperature of the oil meets a preset temperature set value or not; if the first current temperature is determined to meet the temperature set value, generating a first trigger signal; the first trigger signal is used for controlling the circulation pump to be started firstly and then controlling the temperature regulator to be started; judging whether the second current temperature of the oil liquid meets a preset temperature regulation terminal value or not, and generating a second trigger signal when the second regulation temperature meets the temperature regulation terminal value; the second trigger signal is used for controlling the temperature regulator to be closed firstly and then controlling the circulating pump to be closed; therefore, the oil temperature can be intelligently monitored and adjusted, and the adjustment efficiency is ensured; the temperature of the oil liquid is heated or cooled circularly, so that the temperature of the oil liquid is more uniform; the oil is periodically filtered based on a preset period, abrasion of the cleaning equipment is reduced, the fault rate of the cleaning equipment is reduced, and energy conservation and efficiency improvement are achieved.
Description
Technical Field
The invention belongs to the technical field of hydraulic automatic control, and particularly relates to an oil temperature control method and device.
Background
With the continuous improvement of the automation degree and the popularization of artificial intelligence, people pay more attention to cost reduction and efficiency improvement. In a hydraulic system, in order to ensure that the hydraulic system can work normally, the hydraulic or lubricating performance of oil, the temperature index and the cleaning index of the oil must be met.
In the prior art, in order to ensure that the temperature of oil liquid meets the preset requirement, most of hydraulic or lubricating systems manually control the start and stop of a heater and a cooler according to seasonal temperature change, the temperature adjusting process is complicated, and the adjusting efficiency is low; in order to ensure that the cleanliness of oil reaches the requirement, most oil cleaning equipment is in a continuous operation state, so that the fault rate of the cleaning equipment is high.
Disclosure of Invention
Aiming at the problems in the prior art, the embodiment of the invention provides an oil temperature control method and device, which are used for solving the technical problems that in the prior art, the requirement of an oil temperature index is met by manually controlling a heater and a cooler, and when the cleanliness index meets the requirement by continuously operating a cleaning device, the fault rate of the cleaning device is high, and the oil temperature regulation efficiency is low.
The invention provides an oil temperature control method, which comprises the following steps:
acquiring a first current temperature of oil, and judging whether the first current temperature meets a preset temperature set value or not;
if the first current temperature is determined to meet the preset temperature set value, generating a first trigger signal; the first trigger signal is used for controlling the circulation pump to be started firstly and then controlling the temperature regulator to be started;
acquiring a second current temperature of the oil, judging whether the second current temperature meets the preset temperature regulation endpoint value, and generating a second trigger signal when the second regulation temperature meets the preset temperature regulation endpoint value; the second trigger signal is used for controlling the temperature regulator to be closed firstly and then controlling the circulating pump to be closed; wherein the content of the first and second substances,
the preset temperature set value comprises: a first temperature setpoint and a second temperature setpoint, wherein, in the non-temperature-adjustment process, if it is determined that the first current temperature is between the first temperature setpoint and the second temperature setpoint, the method further comprises:
and generating a third trigger signal, and controlling the circulating pump to periodically filter the oil liquid based on a preset period based on the third trigger signal.
Optionally, when the preset temperature setting value is a first temperature setting value, the determining whether the first current temperature meets the preset temperature setting value includes:
judging whether the first current temperature is less than or equal to the first temperature set value;
and if the first current temperature is determined to be less than or equal to the first temperature set value, determining that the first current temperature meets the preset temperature set value.
Optionally, when the preset temperature setting value is a second temperature setting value, the determining whether the first current temperature meets the preset temperature setting value includes:
judging whether the first current temperature is greater than or equal to the second temperature set value;
and if the first current temperature is determined to be greater than or equal to the second temperature set value, determining that the first current temperature meets the preset temperature set value.
Optionally, when the preset temperature setting value is a first temperature setting value and the preset temperature adjustment end point value is a first temperature adjustment end point value, the determining whether the second current temperature meets the preset temperature adjustment end point value includes:
judging whether the second current temperature is greater than or equal to a first temperature adjusting terminal value;
and if the second current temperature is determined to be greater than or equal to the first temperature adjustment end point value, determining that the second current temperature meets the preset temperature adjustment end point value.
Optionally, when the preset temperature setting value is a second temperature setting value and the preset temperature adjustment end point value is a second temperature adjustment end point value, the determining whether the second current temperature meets the preset temperature adjustment end point value includes:
judging whether the second current temperature is less than or equal to the second temperature adjustment terminal value;
and if the second current temperature is determined to be less than or equal to the second temperature adjustment end point value, determining that the second current temperature meets the preset temperature adjustment end point value.
The invention also provides an oil temperature control device, which comprises:
the judging unit is used for acquiring a first current temperature of the oil liquid and judging whether the first current temperature meets a preset temperature set value or not; acquiring a second current temperature of the oil, and judging whether the second current temperature meets the preset temperature regulation terminal value;
the generating unit is used for generating a first trigger signal if the first current temperature is determined to meet the preset temperature set value; the first trigger signal is used for controlling the circulation pump to be started firstly and then controlling the temperature regulator to be started; when the second adjusting temperature is determined to meet the preset temperature adjusting terminal value, generating a second trigger signal; the second trigger signal is used for controlling the temperature regulator to be closed firstly and then controlling the circulating pump to be closed; wherein the content of the first and second substances,
the preset temperature set value comprises: a first temperature setting value and a second temperature setting value, wherein in a non-temperature adjustment process, if it is determined that the first current temperature is between the first temperature setting value and the second temperature setting value, the generation unit is further configured to:
and generating a third trigger signal, and controlling the circulating pump to periodically filter the oil liquid based on a preset period based on the third trigger signal.
Optionally, when the preset temperature setting value is a first temperature setting value, the determining unit is specifically configured to:
judging whether the first current temperature is less than or equal to the first temperature set value;
and if the first current temperature is determined to be less than or equal to the first temperature set value, determining that the first current temperature meets the preset temperature set value.
Optionally, when the preset temperature setting value is a second temperature setting value, the determining unit is specifically configured to:
judging whether the first current temperature is greater than or equal to the second temperature set value;
and if the first current temperature is determined to be greater than or equal to the second temperature set value, determining that the first current temperature meets the preset temperature set value.
Optionally, when the preset temperature setting value is a first temperature setting value and the preset temperature adjustment end point value is a first temperature adjustment end point value, the determining unit is specifically configured to:
judging whether the second current temperature is greater than or equal to a first temperature adjusting terminal value;
and if the second current temperature is determined to be greater than or equal to the first temperature adjustment end point value, determining that the second current temperature meets the preset temperature adjustment end point value.
Optionally, when the preset temperature setting value is a second temperature setting value and the preset temperature adjustment end point value is a second temperature adjustment end point value, the determining unit is specifically configured to:
judging whether the second current temperature is less than or equal to the second temperature adjustment terminal value;
and if the second current temperature is determined to be less than or equal to the second temperature adjustment end point value, determining that the second current temperature meets the preset temperature adjustment end point value.
The invention provides an oil temperature control method and device, and the method comprises the following steps: acquiring a first current temperature of oil, and judging whether the first current temperature meets a preset temperature set value or not; if the first current temperature is determined to meet the preset temperature set value, generating a first trigger signal; the first trigger signal is used for controlling the circulation pump to be started firstly and then controlling the temperature regulator to be started; acquiring a second current temperature of the oil, judging whether the second current temperature meets the preset temperature regulation endpoint value, and generating a second trigger signal when the second regulation temperature meets the preset temperature regulation endpoint value; the second trigger signal is used for controlling the temperature regulator to be closed firstly and then controlling the circulating pump to be closed; wherein the preset temperature set point comprises: a first temperature setpoint and a second temperature setpoint, wherein, in the non-temperature-adjustment process, if it is determined that the first current temperature is between the first temperature setpoint and the second temperature setpoint, the method further comprises: generating a third trigger signal, and controlling the circulating pump to periodically filter the oil liquid based on a preset period based on the third trigger signal; therefore, the oil temperature can be intelligently monitored and adjusted, and the adjustment efficiency is ensured; when the temperature of the oil liquid is adjusted, the circulating pump is used for circularly heating or cooling the oil liquid, so that the temperature of the oil liquid is more uniform, and the temperature quality of the oil liquid is improved; in addition, when the temperature of the oil liquid does not need to be adjusted, the oil liquid is periodically filtered based on a preset period, so that continuous operation of oil liquid cleaning equipment is avoided, abrasion of the cleaning equipment is reduced, the fault rate of the cleaning equipment is reduced, and energy conservation and efficiency improvement are realized.
Drawings
FIG. 1 is a schematic flow chart of an oil temperature control method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a temperature regulation zone according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an oil temperature control device according to an embodiment of the present invention.
Detailed Description
The invention provides an oil temperature control method and device, and aims to solve the technical problems that in the prior art, a heater and a cooler are manually controlled to meet oil temperature index requirements, and when cleanliness indexes meet the requirements by continuous operation of cleaning equipment, the fault rate of the equipment cleaning equipment is high, and the oil temperature adjusting efficiency is low.
The technical solution of the present invention is further described in detail by the accompanying drawings and the specific embodiments.
Example one
The embodiment provides an oil temperature control method, as shown in fig. 1, the method includes:
s110, acquiring a first current temperature of oil, and judging whether the first current temperature meets a preset temperature set value;
when the hydraulic system is in operation, a first current temperature of oil is obtained by using temperature monitoring equipment, and whether the first current temperature meets a preset temperature set value or not is judged. Here, since the hydraulic equipment may be failed when the temperature of the oil is too high or too low, referring to fig. 2, the temperature adjustment section in the present embodiment includes two sections: a low-temperature adjusting interval A and a high-temperature adjusting interval B; the temperature set point then includes: the temperature control device comprises a first temperature set value and a second temperature set value, wherein the first temperature set value is equivalent to the lowest temperature value of a low-temperature regulation interval, and the second temperature set value is equivalent to the highest temperature value of a high-temperature regulation interval. Then correspondingly, the temperature regulator also comprises two: an oil heater and an oil cooler.
The low temperature conditioning interval comprises: the lowest temperature value is smaller than the preset temperature of the heating end point; the high temperature conditioning interval includes: the maximum temperature value is greater than the preset value of the cooling end point.
In different hydraulic systems, values of the first temperature set value and the second temperature set value may be different, and may be set according to an actual operation condition of the hydraulic system, which is not limited herein.
Then, as an alternative embodiment, when the preset temperature setting value is a first temperature setting value, the determining whether the first current temperature meets the preset temperature setting value includes:
judging whether the first current temperature is less than or equal to the first temperature set value;
and if the first current temperature is determined to be less than or equal to the first temperature set value, determining that the first current temperature meets the preset temperature set value. At this time, the temperature of the oil liquid needs to be raised and adjusted.
As an optional embodiment, when the preset temperature setting value is the second temperature setting value, the determining whether the first current temperature meets the preset temperature setting value includes:
judging whether the first current temperature is greater than or equal to the second temperature set value;
and if the first current temperature is determined to be greater than or equal to the second temperature set value, determining that the first current temperature meets the preset temperature set value. At this time, the oil liquid needs to be cooled and adjusted.
S111, if the first current temperature is determined to meet the preset temperature set value, generating a first trigger signal; the first trigger signal is used for controlling the circulation pump to be started firstly and then controlling the temperature regulator to be started;
if the first current temperature meets the first temperature set value, which indicates that the temperature of the oil liquid needs to be raised and adjusted at the moment, a first trigger signal is generated, and the first trigger signal is used for controlling the circulating pump to be started firstly and then controlling the temperature regulator (the oil liquid heater) to be started. When the temperature of the oil liquid is raised, the oil liquid can be circularly heated by the circulating pump, so that the uniformity of oil liquid heating is ensured.
For example, if the first temperature setting value is 5 degrees, the first current temperature is less than or equal to 5 degrees, and then a first trigger signal is generated to trigger the temperature rise of the oil.
Similarly, if it is determined that the first current temperature meets the second temperature setting value, which indicates that the temperature of the oil liquid needs to be reduced and adjusted at the moment, a first trigger signal is generated, and the first trigger signal is used for firstly controlling the circulation pump to be started and then controlling the temperature regulator (oil liquid cooler) to be started. When cooling down fluid like this, can utilize the circulating pump to carry out circulative cooling to fluid, ensure the homogeneity of fluid cooling.
For example, if the second temperature setting value is 95 degrees, the first current temperature is greater than or equal to 95 degrees, and at this time, a first trigger signal is generated to trigger the oil to cool down.
During non-temperature adjustment, if the first current temperature is determined to be between the first temperature set point and the second temperature set point, the method further comprises:
and generating a third trigger signal, and controlling the circulating pump to filter the oil liquid based on a preset period based on the third trigger signal.
For example, in the non-temperature-increasing process and the non-temperature-decreasing process, if the first current temperature is 50 degrees, the oil does not need to be increased in temperature or decreased in temperature, and then a third trigger signal is generated to trigger the oil to be filtered.
When the circulating pump is controlled to filter the oil liquid based on a preset period, the following effects are realized:
controlling to stop the timing of the circulating pump, and controlling to stop the timing of the circulating pump when a preset period is reached; and then, when the preset period is reached, controlling the circulating pump to start, controlling the starting of the circulating pump to start timing, and when the preset period is reached, controlling the starting of the pump to finish timing. Therefore, the circulation pump is controlled to be started based on the preset period, the circulation pump can be prevented from being kept in a continuous operation state all the time, and the fault rate of the circulation pump is reduced.
S112, acquiring a second current temperature of the oil, judging whether the second current temperature meets the preset temperature regulation endpoint value, and generating a second trigger signal when the second regulation temperature meets the preset temperature regulation endpoint value; the second trigger signal is used for controlling the temperature regulator to be closed firstly and then controlling the circulating pump to be closed;
and acquiring a second current temperature of the oil after the oil is heated or cooled circularly for a certain time, wherein the second current temperature is the temperature of the oil after the temperature of the oil is adjusted. The temperature regulation end point values therefore also include two: a first temperature adjustment endpoint value and a second temperature adjustment endpoint value.
Judging whether the second current temperature meets a preset temperature regulation endpoint value or not, and generating a second trigger signal when the second regulation temperature meets the temperature regulation endpoint value; the second trigger signal is used for controlling the regulator to be closed firstly and then controlling the circulating pump to be closed.
As an optional embodiment, when the temperature setting value is the first temperature setting value and the temperature adjustment end point value is the first temperature adjustment end point value, the determining whether the second current temperature meets the preset temperature adjustment end point value includes:
judging whether the second current temperature is greater than or equal to the first temperature regulation terminal value;
and if the second current temperature is determined to be greater than or equal to the first temperature regulation endpoint value, determining that the second current temperature meets the preset temperature regulation endpoint value.
For example, if the first temperature adjustment end point value is 10 degrees, when the second current temperature is greater than or equal to 10 degrees, it indicates that the oil does not need to be heated any more.
As an optional embodiment, when the temperature setting value is the second temperature setting value and the preset temperature adjustment end point value is the second temperature adjustment end point value, the determining whether the second current temperature meets the preset temperature adjustment end point value includes:
judging whether the second current temperature is less than or equal to the second temperature adjustment terminal value;
and if the second current temperature is determined to be less than or equal to the second temperature adjustment end point value, determining that the second current temperature meets the preset temperature adjustment end point value.
For example, if the second temperature adjustment end point value is 80 degrees, when the second current temperature is less than or equal to 80 degrees, it indicates that the oil does not need to be cooled.
Therefore, the oil temperature can be intelligently monitored and adjusted, and the adjustment efficiency is ensured; when the temperature of the oil liquid is adjusted, the circulating pump is used for circularly heating or cooling the oil liquid, so that the temperature of the oil liquid is more uniform, and the temperature quality of the oil liquid is improved; in addition, when the temperature of the oil liquid does not need to be adjusted, the oil liquid is periodically filtered based on a preset period, so that continuous operation of oil liquid cleaning equipment is avoided, abrasion of the cleaning equipment is reduced, and the fault rate of the cleaning equipment (circulating pump) is reduced.
Based on the same inventive concept, the invention also provides an oil monitoring device, which is shown in the second embodiment in detail.
Example two
This implementation provides an oil temperature control device, as shown in fig. 3, the device includes: a judging unit 31 and a generating unit 32; wherein, the first and the second end of the pipe are connected with each other,
the judging unit 31 is configured to obtain a first current temperature of the oil, and judge whether the first current temperature meets a preset temperature setting value; acquiring a second current temperature of the oil, and judging whether the second current temperature meets the preset temperature regulation terminal value;
a generating unit 32, configured to generate a first trigger signal if it is determined that the first current temperature meets the preset temperature setting value; the first trigger signal is used for controlling the circulation pump to be started firstly and then controlling the temperature regulator to be started; when the second adjusting temperature is determined to meet the preset temperature adjusting terminal value, generating a second trigger signal; the second trigger signal is used for controlling the temperature regulator to be closed firstly and then controlling the circulating pump to be closed; wherein the content of the first and second substances,
the preset temperature set value comprises: a first temperature setting value and a second temperature setting value, and in the non-temperature adjustment process, if it is determined that the first current temperature is between the first temperature setting value and the second temperature setting value, the generating unit 31 is further configured to:
and generating a third trigger signal, and controlling the circulating pump to periodically filter the oil liquid based on a preset period based on the third trigger signal.
Specifically, when the hydraulic system is running, the determining unit 31 obtains a first current temperature of the oil by using the temperature monitoring device, and determines whether the first current temperature meets a preset temperature setting value. Here, since the hydraulic equipment may be failed when the temperature of the oil is too high or too low, referring to fig. 2, the temperature adjustment section in the present embodiment includes two sections: a low-temperature adjusting interval A and a high-temperature adjusting interval B; the temperature set point then includes: the first temperature setting value is equivalent to the lowest temperature value of the low-temperature adjusting interval, and the second temperature setting value is equivalent to the highest temperature value of the high-temperature adjusting interval. Then correspondingly, the temperature regulator also includes two: an oil heater and an oil cooler.
The low temperature conditioning interval comprises: the lowest temperature value is smaller than the preset temperature of the heating end point; the high temperature conditioning interval includes: the maximum temperature value is greater than the preset value of the cooling end point.
In different hydraulic systems, values of the first temperature set value and the second temperature set value may be different, and may be set according to an actual operation condition of the hydraulic system, which is not limited herein.
Then, as an alternative embodiment, when the preset temperature setting value is a first temperature setting value, the determining unit 31 determines whether the first current temperature meets the preset temperature setting value, including:
judging whether the first current temperature is less than or equal to the first temperature set value or not;
and if the first current temperature is determined to be less than or equal to the first temperature set value, determining that the first current temperature meets the preset temperature set value. At this time, the temperature of the oil liquid needs to be raised and adjusted.
As an alternative embodiment, when the preset temperature setting value is the second temperature setting value, the determining unit 31 determines whether the first current temperature meets the preset temperature setting value, including:
judging whether the first current temperature is greater than or equal to the second temperature set value;
and if the first current temperature is determined to be greater than or equal to the second temperature set value, determining that the first current temperature meets the preset temperature set value. At this time, the oil liquid needs to be cooled and adjusted.
If it is determined that the first current temperature meets the first temperature setting value, which indicates that temperature rise adjustment needs to be performed on the oil temperature at this time, the generation unit 32 generates a first trigger signal, where the first trigger signal is used to control the circulation pump to be turned on first, and then control the temperature regulator (oil heater) to be turned on. When the temperature of the oil liquid is raised, the oil liquid can be circularly heated by the circulating pump, so that the uniformity of oil liquid heating is ensured.
For example, if the first temperature setting value is 5 degrees, the first current temperature is less than or equal to 5 degrees, and at this time, a first trigger signal is generated to trigger the temperature rise of the oil liquid.
Similarly, if it is determined that the first current temperature meets the second temperature setting value, which indicates that the temperature of the oil needs to be reduced, the generating unit 32 generates a first trigger signal, where the first trigger signal is used to control the circulation pump to be turned on first, and then control the temperature regulator (oil cooler) to be turned on. When cooling down fluid like this, can utilize the circulating pump to carry out circulative cooling to fluid, ensure the homogeneity of fluid cooling.
For example, if the second temperature setting value is 95 degrees, the first current temperature is greater than or equal to 95 degrees, and at this time, a first trigger signal is generated to trigger the oil to cool down.
In the non-temperature adjusting process, if it is determined that the first current temperature is between the first temperature setting value and the second temperature setting value, the generating unit 32 is further configured to:
and generating a third trigger signal, and controlling the circulating pump to filter the oil liquid based on a preset period based on the third trigger signal.
For example, in the non-temperature-raising process and the non-temperature-lowering process, if the first current temperature is 50 degrees, the temperature of the oil is not required to be raised, and the temperature of the oil is not required to be lowered, so that a third trigger signal is generated to trigger the filtering of the oil.
When the circulating pump is controlled to filter oil based on a preset period, the following effects are achieved:
controlling to stop the start of the timing of the circulating pump, and controlling to stop the timing of the circulating pump when a preset period is reached; and then controlling the circulating pump to start when a preset period is reached, controlling the starting of the circulating pump to start timing, and controlling the starting of the pump to finish timing when the preset period is reached. Therefore, the circulation pump is controlled to be started based on the preset period, the circulation pump can be prevented from being kept in a continuous operation state all the time, and the fault rate of the circulation pump is reduced.
And acquiring a second current temperature of the oil after the preset time of the cyclic heating or the cyclic cooling, wherein the second current temperature is the temperature of the oil after the temperature of the oil is adjusted. The temperature regulation end point values thus also include two: a first temperature adjustment endpoint value and a second temperature adjustment endpoint value.
The judging unit 31 is further configured to judge whether the second current temperature meets a preset temperature adjustment end point value, and when it is determined that the second adjustment temperature meets the temperature adjustment end point value, generate a second trigger signal; the second trigger signal is used for controlling the regulator to be closed firstly and then controlling the circulating pump to be closed.
As an alternative embodiment, when the temperature setting value is the first temperature setting value and the temperature adjustment end point value is the first temperature adjustment end point value, the determining unit 31 determines whether the second current temperature meets the preset temperature adjustment end point value, including:
judging whether the second current temperature is greater than or equal to the first temperature regulation terminal value or not;
and if the second current temperature is determined to be greater than or equal to the first temperature regulation endpoint value, determining that the second current temperature meets the preset temperature regulation endpoint value.
For example, if the first temperature adjustment end point value is 10 degrees, when the second current temperature is greater than or equal to 10 degrees, it indicates that the oil does not need to be heated.
As an alternative embodiment, when the temperature setting value is the second temperature setting value and the preset temperature adjustment end point value is the second temperature adjustment end point value, the determining unit 31 determines whether the second current temperature meets the preset temperature adjustment end point value, including:
judging whether the second current temperature is less than or equal to the second temperature regulation terminal value;
and if the second current temperature is determined to be less than or equal to the second temperature adjustment end point value, determining that the second current temperature meets the preset temperature adjustment end point value.
For example, if the second temperature adjustment end point value is 80 degrees, when the second current temperature is less than or equal to 80 degrees, it indicates that the oil does not need to be cooled.
Therefore, the oil temperature can be intelligently monitored and adjusted, and the adjustment efficiency is ensured; when the temperature of the oil liquid is adjusted, the circulating pump is used for circularly heating or cooling the oil liquid, so that the temperature of the oil liquid is more uniform, and the temperature quality of the oil liquid is improved; in addition, when the temperature of the oil liquid does not need to be adjusted, the oil liquid is periodically filtered based on a preset period, so that continuous operation of oil liquid cleaning equipment is avoided, abrasion of the cleaning equipment is reduced, and the fault rate of the cleaning equipment (circulating pump) is reduced.
The oil temperature control method and the oil temperature control device provided by the invention have the beneficial effects that at least:
the invention provides an oil temperature control method and device, and the method comprises the following steps: acquiring a first current temperature of oil, and judging whether the first current temperature meets a preset temperature set value or not; if the first current temperature is determined to meet the preset temperature set value, generating a first trigger signal; the first trigger signal is used for controlling the circulation pump to be started firstly and then controlling the temperature regulator to be started; acquiring a second current temperature of the oil, judging whether the second current temperature meets the preset temperature regulation endpoint value, and generating a second trigger signal when the second regulation temperature meets the preset temperature regulation endpoint value; the second trigger signal is used for controlling the temperature regulator to be closed firstly and then controlling the circulating pump to be closed; wherein the preset temperature set point comprises: a first temperature setpoint and a second temperature setpoint, wherein, in the non-temperature-adjustment process, if it is determined that the first current temperature is between the first temperature setpoint and the second temperature setpoint, the method further comprises: generating a third trigger signal, and controlling the circulating pump to periodically filter the oil liquid based on a preset period based on the third trigger signal; therefore, the oil temperature can be intelligently monitored and adjusted, and the adjustment efficiency is ensured; when the temperature of the oil liquid is adjusted, the circulating pump is used for circularly heating or cooling the oil liquid, so that the temperature of the oil liquid is more uniform, and the temperature quality of the oil liquid is improved; in addition, when the temperature of the oil liquid does not need to be adjusted, the oil liquid is periodically filtered based on a preset period, so that continuous operation of oil liquid cleaning equipment is avoided, abrasion of the cleaning equipment is reduced, the fault rate of the cleaning equipment is reduced, and energy conservation and efficiency improvement are realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (10)
1. A method for controlling the temperature of oil is characterized by comprising the following steps:
acquiring a first current temperature of oil, and judging whether the first current temperature meets a preset temperature set value or not;
if the first current temperature is determined to meet the preset temperature set value, generating a first trigger signal; the first trigger signal is used for controlling the circulation pump to be started firstly and then controlling the temperature regulator to be started;
acquiring a second current temperature of the oil, judging whether the second current temperature meets a preset temperature regulation terminal value, and generating a second trigger signal when the second current temperature meets the preset temperature regulation terminal value; the second trigger signal is used for controlling the temperature regulator to be closed firstly and then controlling the circulating pump to be closed; wherein the content of the first and second substances,
the preset temperature set value comprises: a first temperature setpoint and a second temperature setpoint, wherein, in the non-temperature-adjustment process, if it is determined that the first current temperature is between the first temperature setpoint and the second temperature setpoint, the method further comprises:
and generating a third trigger signal, and controlling the circulating pump to periodically filter the oil liquid based on a preset period based on the third trigger signal.
2. The method of claim 1, wherein when the preset temperature setting is a first temperature setting, the determining whether the first current temperature satisfies the preset temperature setting comprises:
judging whether the first current temperature is less than or equal to the first temperature set value;
and if the first current temperature is determined to be less than or equal to the first temperature set value, determining that the first current temperature meets the preset temperature set value.
3. The method of claim 1, wherein when the preset temperature setting is a second temperature setting, the determining whether the first current temperature satisfies the preset temperature setting comprises:
judging whether the first current temperature is greater than or equal to the second temperature set value;
and if the first current temperature is determined to be greater than or equal to the second temperature set value, determining that the first current temperature meets the preset temperature set value.
4. The method of claim 1, wherein when the preset temperature set point is a first temperature set point and the preset temperature adjustment endpoint value is a first temperature adjustment endpoint value, the determining whether the second current temperature meets the preset temperature adjustment endpoint value comprises:
judging whether the second current temperature is greater than or equal to a first temperature adjusting terminal value;
and if the second current temperature is determined to be greater than or equal to the first temperature regulation endpoint value, determining that the second current temperature meets the preset temperature regulation endpoint value.
5. The method of claim 1, wherein when the preset temperature set point is a second temperature set point and the preset temperature adjustment endpoint value is a second temperature adjustment endpoint value, the determining whether the second current temperature meets the preset temperature adjustment endpoint value comprises:
judging whether the second current temperature is less than or equal to the second temperature adjustment terminal value;
and if the second current temperature is determined to be less than or equal to the second temperature regulation endpoint value, determining that the second current temperature meets the preset temperature regulation endpoint value.
6. An oil temperature control device, characterized in that the device includes:
the judging unit is used for acquiring a first current temperature of the oil liquid and judging whether the first current temperature meets a preset temperature set value or not; acquiring a second current temperature of the oil, and judging whether the second current temperature meets a preset temperature regulation terminal value;
the generating unit is used for generating a first trigger signal if the first current temperature is determined to meet the preset temperature set value; the first trigger signal is used for controlling the circulation pump to be started firstly and then controlling the temperature regulator to be started; when the second current temperature is determined to meet the preset temperature regulation endpoint value, generating a second trigger signal; the second trigger signal is used for controlling the temperature regulator to be closed firstly and then controlling the circulating pump to be closed; wherein, the first and the second end of the pipe are connected with each other,
the preset temperature set value comprises: a first temperature setting value and a second temperature setting value, wherein in a non-temperature adjustment process, if it is determined that the first current temperature is between the first temperature setting value and the second temperature setting value, the generation unit is further configured to:
and generating a third trigger signal, and controlling the circulating pump to periodically filter the oil liquid based on a preset period based on the third trigger signal.
7. The apparatus according to claim 6, wherein when the preset temperature setting value is a first temperature setting value, the determining unit is specifically configured to:
judging whether the first current temperature is less than or equal to the first temperature set value;
and if the first current temperature is determined to be less than or equal to the first temperature set value, determining that the first current temperature meets the preset temperature set value.
8. The apparatus according to claim 6, wherein when the preset temperature setting value is a second temperature setting value, the determining unit is specifically configured to:
judging whether the first current temperature is greater than or equal to the second temperature set value;
and if the first current temperature is determined to be greater than or equal to the second temperature set value, determining that the first current temperature meets the preset temperature set value.
9. The apparatus of claim 6, wherein when the preset temperature setting value is a first temperature setting value and the preset temperature adjustment endpoint value is a first temperature adjustment endpoint value, the determining unit is specifically configured to:
judging whether the second current temperature is greater than or equal to a first temperature adjusting terminal value;
and if the second current temperature is determined to be greater than or equal to the first temperature regulation endpoint value, determining that the second current temperature meets the preset temperature regulation endpoint value.
10. The apparatus of claim 6, wherein when the preset temperature setting value is a second temperature setting value and the preset temperature adjustment endpoint value is a second temperature adjustment endpoint value, the determining unit is specifically configured to:
judging whether the second current temperature is less than or equal to the second temperature regulation terminal value;
and if the second current temperature is determined to be less than or equal to the second temperature regulation endpoint value, determining that the second current temperature meets the preset temperature regulation endpoint value.
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| JP2005036881A (en) * | 2003-07-14 | 2005-02-10 | Shin Caterpillar Mitsubishi Ltd | Oil temperature control method for hydraulic circuit |
| CN101666342A (en) * | 2009-09-27 | 2010-03-10 | 中航力源液压股份有限公司 | Test bed oil and environment temperature control device |
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