阅读说明：本技术 一种稀油站加热器控制装置及方法 (Thin oil station heater control device and method ) 是由 梁锋 覃华宇 覃方耀 梁恩宁 于 2021-01-22 设计创作，主要内容包括：本发明公开了一种稀油站加热器控制装置及方法,属于稀油站控制技术领域,包括油箱、油泵、供油管、加热器、继电器、电源、油箱温度传感器和PLC控制器,油泵的进油端与油箱连通,油泵的出油口与供油管连接,供油管的另一端与外部的受润滑设备连接,加热器设置在油箱内,电源经继电器与加热器连接,PLC控制器与继电器连接,油箱温度传感器设置在油箱内并与PLC控制器连接。本发明通过减少加热器动作时间,主机设备运行后,设备运转会自身产生热量,无需加热器进行加热,则加热器停止,减少电能损耗,有效防止加热器误动作,消除烧油的风险。(The invention discloses a device and a method for controlling a heater of a thin oil station, belonging to the technical field of control of the thin oil station. According to the invention, by reducing the action time of the heater, after the host equipment runs, the equipment can generate heat by itself when running, the heater stops without heating by the heater, so that the electric energy loss is reduced, the misoperation of the heater is effectively prevented, and the risk of oil burning is eliminated.)

1. The utility model provides a thin oil station heater controlling means which characterized in that: including oil tank (1), the oil pump, supply oil pipe (4), heater (7), relay (8), power (9), oil tank temperature sensor and PLC controller (10), the inlet end and oil tank (1) intercommunication of oil pump, the oil-out and the confession oil pipe (4) of oil pump are connected, the other end and the outside lubricated equipment (13) of receiving of supplying oil pipe (4) are connected, heater (7) set up in oil tank (1), power (9) are connected with heater (7) through relay (8), PLC controller (10) are connected with relay (8), oil tank temperature sensor sets up in oil tank (1) and is connected with PLC controller (10).

2. The thin oil station heater control device as claimed in claim 1, wherein: the oil tank temperature sensor comprises an oil tank first temperature sensor (5) and an oil tank second temperature sensor (6), and the oil tank first temperature sensor (5) and the oil tank second temperature sensor (6) are both arranged in the oil tank (1) and are connected with the PLC (programmable logic controller) (10).

3. The thin oil station heater control device as claimed in claim 2, wherein: the oil supply pipe (4) is provided with an oil supply pipe first temperature sensor (11) and an oil supply pipe second temperature sensor (12), the oil supply pipe first temperature sensor (11) and the oil supply pipe second temperature sensor (12) are attached to the outer side of the oil supply pipe (4), and a heat insulation layer is arranged to wrap the outer side.

4. The thin oil station heater control device as claimed in claim 3, wherein: the device to be lubricated is provided with lubricated equipment temperature sensor (14) on outside lubricated equipment (13), and lubricated equipment temperature sensor (14) are connected with PLC controller (10), and outside lubricated equipment (13) data interface is connected with PLC controller (10).

5. The thin oil station heater control device as claimed in claim 4, wherein: the oil pump includes first oil (2) and second oil pump (3), and the input of first oil (2) and second oil pump (3) all communicates with oil tank (1), and the output all communicates with supply oil pipe (4).

6. The control method of the thin oil station heater control device according to any one of claims 1 to 5, characterized in that: the method comprises the following steps:

step 1: when an external lubricated device (13) needs to be started, a starting signal is sent to the PLC (10) through the data interface, the PLC (10) collects the temperature of the oil tank temperature sensor, and when the temperature is lower than the set temperature, the heater (7) is controlled to start heating, and the oil pump is started to pump oil to the external lubricated device (13);

step 2: collecting the temperature of an oil supply pipe temperature sensor arranged on an oil supply pipe (4), comparing the temperature with a set temperature, controlling a heater (7) to stop heating by a PLC (programmable logic controller) controller (10) when the temperature is higher than the set temperature, and detecting the temperature of an external lubricated device (13) after operation when the temperature is lower than the set temperature;

and step 3: when the temperature of the oil tank temperature sensor, the oil supply pipe temperature sensor or the lubricated equipment temperature sensor is higher than the set temperature, the PLC (10) controls the heater (7) to stop heating, otherwise, the heating is continuously controlled.

7. The control method of the thin oil station heater control device according to claim 6, characterized in that: in the step 1, when the PLC (10) controls the heater (7) to start heating, a heating timer is set, and when the temperature of the oil tank temperature sensor, the oil supply pipe temperature sensor or the lubricated equipment temperature sensor is not higher than the set temperature within the set time, the PLC (10) controls the heater (7) to stop heating after the set time is up.

Technical Field

The invention relates to the technical field of electronics, in particular to a device and a method for controlling a heater of a thin oil station.

Background

The thin oil station is the heart of a thin oil circulation lubrication system and is used for forcibly pressing the lubricating oil to a machine friction part. The thin oil station is mainly used in a centralized lubricating system of a dynamic and static pressure or sliding shoe bearing of mechanical equipment such as metallurgy, mines, cement and the like, and is usually installed in an underground oil depot or a pit near the machine. The existing thin oil station is usually used for heating oil during operation, so that oil burning is often caused, and energy is wasted.

Disclosure of Invention

The invention aims to provide a control device and a control method for a heater of a thin oil station, which solve the technical problems that the existing thin oil station is easy to cause oil burning and energy waste.

The utility model provides a thin oil station heater control device, includes oil tank, oil pump, supplies oil pipe, heater, relay, power, oil tank temperature sensor and PLC controller, the oil feed end and the oil tank intercommunication of oil pump, the oil-out and the confession oil union coupling of oil pump, the other end and the outside lubricated equipment of receiving of supplying oil pipe are connected, the heater setting is in the oil tank, the power is connected with the heater through the relay, the PLC controller is connected with the relay, oil tank temperature sensor sets up in the oil tank and is connected with the PLC controller.

Further, the oil tank temperature sensor comprises an oil tank first temperature sensor and an oil tank second temperature sensor, and the oil tank first temperature sensor and the oil tank second temperature sensor are both arranged in the oil tank and connected with the PLC.

Furthermore, the oil supply pipe is provided with an oil supply pipe first temperature sensor and an oil supply pipe second temperature sensor, the oil supply pipe first temperature sensor and the oil supply pipe second temperature sensor are both attached to the outer side of the oil supply pipe, and a heat insulation layer is arranged to wrap the outer side of the oil supply pipe.

Furthermore, a lubricated equipment temperature sensor is arranged on the external lubricated equipment, the lubricated equipment temperature sensor is connected with the PLC, and the external lubricated equipment data interface is connected with the PLC.

Further, the oil pump includes first oil and second oil pump, and the input of first oil and second oil pump all communicates with the oil tank, and the output all communicates with the fuel feeding pipe.

A control method of a thin oil station heater control device, the method comprising the steps of:

step 1: when external lubricated equipment needs to be started, a starting signal is sent to the PLC through the data interface, the PLC collects the temperature of the oil tank temperature sensor, when the temperature is lower than the set temperature, the heater is controlled to start heating, and the oil pump is started to pump oil to the external lubricated equipment;

step 2: collecting the temperature of an oil supply pipe temperature sensor arranged on an oil supply pipe, comparing the temperature with a set temperature, controlling a heater to stop heating by a PLC (programmable logic controller) when the temperature is higher than the set temperature, and detecting the temperature of external lubricated equipment after operation when the temperature is lower than the set temperature;

and step 3: when the temperature of the oil tank temperature sensor, the oil supply pipe temperature sensor or the lubricated equipment temperature sensor is higher than the set temperature, the PLC controller controls the heater to stop heating, otherwise, the heating is continuously controlled.

Further, in step 1, when the PLC controller controls the heater to start heating, a heating timer is set, and when the temperature of the oil tank temperature sensor, the oil supply pipe temperature sensor, or the lubricated equipment temperature sensor is not higher than the set temperature within the set time, the PLC controller controls the heater to stop heating after the set time is up.

By adopting the technical scheme, the invention has the following technical effects:

according to the invention, by reducing the action time of the heater, after the host equipment runs, the equipment can generate heat by itself when running, the heater stops without heating by the heater, so that the electric energy loss is reduced, the misoperation of the heater is effectively prevented, and the risk of oil burning is eliminated.

Drawings

FIG. 1 is a schematic diagram of the structure of the device of the present invention.

Reference numbers in the figures: 1-an oil tank; 2-a first oil pump; 3-a second oil pump; 4-oil supply pipe; 5-a first temperature sensor of the oil tank; 6-oil tank second temperature sensor; 7-a heater; 8-a relay; 9-a power supply; 10-a PLC controller; 11-a first temperature sensor of the oil supply line; 12-oil supply pipe second temperature sensor; 13-lubricated equipment; 14-lubricated equipment temperature sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, preferred embodiments are given and the present invention is described in further detail. It should be noted, however, that the numerous details set forth in the description are merely for the purpose of providing the reader with a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.

The utility model provides a thin oil station heater control device, as shown in figure 1, including oil tank 1, the oil pump, supply oil pipe 4, heater 7, relay 8, power 9, oil tank temperature sensor and PLC controller 10, the oil feed end and the oil tank 1 intercommunication of oil pump, the oil-out and the oil supply pipe 4 of oil pump are connected, supply oil pipe 4's the other end and the outside lubricated equipment 13 that receives are connected, heater 7 sets up in oil tank 1, power 9 is connected with heater 7 through relay 8, PLC controller 10 is connected with relay 8, oil tank temperature sensor sets up in oil tank 1 and is connected with PLC controller 10. The oil tank temperature sensor comprises an oil tank first temperature sensor 5 and an oil tank second temperature sensor 6, and the oil tank first temperature sensor 5 and the oil tank second temperature sensor 6 are both arranged in the oil tank 1 and are connected with the PLC 10. The power supply 9 is commercial power or 220V alternating current power generation power supply. An optical coupler isolator is further arranged between the relay 8 and the PLC 10 to protect the PLC 10. The heater 7 and the oil pump are conventional structures.

The conventional heater with the structure is heated frequently, so that electric energy waste is caused; sometimes, the heater cannot be stopped in time after being started due to signal misoperation, so that oil burning and equipment damage are caused. Therefore, the structural scheme of the application can greatly reduce the action time of the heater and reduce the electric energy loss; the false operation of the heater is effectively prevented, and the risk of oil burning is eliminated.

And the oil supply pipe 4 is provided with an oil supply pipe first temperature sensor 11 and an oil supply pipe second temperature sensor 12, and the oil supply pipe first temperature sensor 11 and the oil supply pipe second temperature sensor 12 are both attached to the outer side of the oil supply pipe 4 and are provided with a heat-insulating layer wrapped on the outer side. A lubricated equipment temperature sensor 14 is arranged on the external lubricated equipment 13, the lubricated equipment temperature sensor 14 is connected with the PLC 10, and a data interface of the external lubricated equipment 13 is connected with the PLC 10. The oil pump includes first oil 2 and second oil pump 3, and the input of first oil 2 and second oil pump 3 all communicates with oil tank 1, and the output all communicates with supply oil pipe (4).

A control method of a thin oil station heater control device, the method comprising the steps of:

step 1: when the external lubricated equipment 13 needs to be started, a starting signal is sent to the PLC 10 through the data interface, the PLC 10 collects the temperature of the oil tank temperature sensor, and when the temperature is lower than the set temperature, the heater 7 is controlled to start heating, and the oil pump is started to pump oil to the external lubricated equipment 13. When the PLC 10 controls the heater 7 to start heating, a heating timer is set, and when the temperature of the oil tank temperature sensor, the oil supply pipe temperature sensor or the lubricated equipment temperature sensor is not higher than the set temperature within the set time, the PLC 10 controls the heater 7 to stop heating after the set time is up.

Step 2: the temperature of the oil supply pipe temperature sensor provided in the oil supply pipe 4 is detected, the temperature is compared with a set temperature, the PLC controller 10 controls the heater 7 to stop heating when the temperature is higher than the set temperature, and detects the temperature of the external lubricated equipment 13 after operation when the temperature is lower than the set temperature.

And step 3: when the temperature of the oil tank temperature sensor, the oil supply pipe temperature sensor or the lubricated equipment temperature sensor is higher than the set temperature, the PLC 10 controls the heater 7 to stop heating, otherwise, the heating is continuously controlled.

The thin oil station is controlled by a PLC system, the heater is controlled by a PLC program, the original control room only starts heating by low temperature, and the heater is turned off by high temperature.

According to the thin oil station, signals of low oil tank temperature and high oil tank temperature are detected, signals of low oil supply temperature and high oil supply temperature of an oil supply pipeline are also detected, and operation signals of lubricated equipment (hereinafter referred to as host equipment) are also sent to a thin oil station control system.

The oil station heater can be controlled to be optimized according to the heating temperature rise condition of the oil station and the characteristics of heating of the host equipment after operation and the like.

The heater triggered by the oil temperature low signal operates, the oil temperature low signal does not disappear when the heater operates within the set time, the system judges that the oil temperature low detection signal is abnormal, and heating is stopped.

After the host equipment runs, the equipment can generate heat by itself when running, and the heater stops without being heated by the heater.

After an oil pump of the oil station is started, oil begins to be filled on an oil supply pipe. If the oil supply pipeline has a high oil supply temperature signal and the oil tank has no low oil supply temperature signal, the oil tank temperature is not low, the oil supply temperature meets the oil supply requirement, and the heater can stop heating. The action time of the heater is reduced, the electric energy loss is reduced, the misoperation of the heater is effectively prevented, and the risk of oil burning is eliminated.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.