Vacuum oil purifier

Abstract

The utility model provides a vacuum oil purifier which comprises a vacuum oil purifier body and a control system, the vacuum oil purifier body comprises a coarse strainer, an oil supply pump, an evaporation chamber, a condenser, a vacuum pump, an oil drain pump, a fine filter, a heating thermostat and a circulating oil pump, external oil is sucked through an inlet valve and enters the coarse strainer to filter out solid particle impurities, and the oil supply pump is connected with the control system. Oil enters the evaporation chamber through the oil supply pump, water and gas impurities in the oil are evaporated to achieve oil-liquid separation in the oil, one part of the oil is discharged after being condensed into a liquid state through the condenser, the other part of the oil is pumped away by the oil drain pump, solid particle impurities in the oil are subjected to solid-liquid separation through the fine filter, and the oil is discharged from an outlet of the oil purifier. And the heating constant-temperature device is used for heating the circulating oil liquid entering the evaporation chamber. According to the utility model, the automatic control of the vacuum oil purifier can be realized, the automatic adjustment of the oil purifier can be realized, the manpower and material resources are saved, the intelligent degree is improved, the pressure protection is realized, the danger is reduced, and the application prospect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil purifiers, in particular to a vacuum oil purifier. Background Art

[0002] With the rapid development of modern industry, the impact and potential harm of industrial waste oil on the environment are becoming more and more serious. How to recycle and reuse it effectively has become a topic facing people. In the process of production, packaging, transportation, storage and operation, oil will inevitably be polluted by the environment, causing the content of pollutants such as particles, moisture, and gas in the oil to exceed the standard, which seriously affects the normal operation of oil-filled equipment. Therefore, oil pollution control and purification are very important in modern industry. Vacuum oil purifiers can efficiently remove free water and solid pollutants in petroleum-based oils such as hydraulic oil, lubricating oil, and turbine oil. They can also bypass or purify the oil online as needed. However, the existing oil purifiers have the problems of low efficiency, time-consuming and labor-intensive, low automation and intelligence, and potential safety hazards. Summary of the invention

[0003] In view of this, the utility model aims to overcome the deficiencies of the above-mentioned problems in the prior art and proposes a vacuum oil purifier.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A vacuum oil purifier comprises a vacuum oil purifier body and a control system connected to the vacuum oil purifier body. The vacuum oil purifier body comprises a coarse filter, an oil supply pump, an evaporation chamber, a condenser, a vacuum pump, an oil discharge pump, a fine filter, a heating thermostat and a circulating oil pump. External oil is sucked in through an inlet valve, enters the coarse filter to filter out solid particle impurities, and enters the evaporation chamber through the oil supply pump. Water and gas impurities in the oil are separated by evaporation. A part of the oil is discharged after being condensed into a liquid state through the condenser, and the other part is extracted by the oil discharge pump. The solid particle impurities in the oil are separated into solid and liquid through the fine filter, and the oil is discharged from the outlet of the oil purifier. The heating thermostat heats the circulating oil entering the evaporation chamber. The oil supply pump, the oil discharge pump, the circulating oil pump and the pipeline constitute an oil transportation system.

[0006] The control system includes a detection unit, a controller, and an actuator. The detection unit is used to detect the temperature, pressure, liquid level, flow rate and vacuum degree during the operation of the vacuum oil purifier, and send the data to the controller. The controller is provided with a comparator, which compares the detected data with the comparator and controls the actuator to work according to the comparison result.

[0007] The controller is electrically connected to the oil supply pump motor, the vacuum pump motor, the condenser, the oil discharge pump motor, the circulating oil pump motor and the heating thermostat;

[0008] The actuator comprises an oil supply pump inlet solenoid valve, a circulating oil pump inlet solenoid valve, a vacuum pump inlet solenoid valve, an oil discharge pump inlet solenoid valve, and a condenser cooling water pump solenoid valve.

[0009] Furthermore, the detection unit includes a vacuum sensor, a temperature sensor, a pressure sensor, a flow sensor, and a liquid level sensor. The vacuum sensor is arranged at the inlet of the vacuum unit, the temperature sensor is arranged at the outlet of the heater and the bottom of the evaporation chamber, the pressure sensor is arranged at the nozzle inlet of the oil supply pump and the inlet of the oil discharge pump, and the flow sensor is arranged at the inlet of the oil supply pump and the inlet of the oil discharge pump.

[0010] Furthermore, the detection unit is sent to an AD converter via an operational amplifier and connected to a controller via the AD converter.

[0011] Furthermore, the heating constant temperature device includes a heater, a temperature controller, and a relay. The temperature sensor indicates the temperature of the oil on the pointer of the temperature controller. When the temperature is lower than the set temperature, the relay closes to heat the oil. When the temperature reaches higher than the set temperature, the relay releases and returns to the normally open state, and the heating is interrupted. When the temperature drops to the set temperature, the relay closes again.

[0012] Furthermore, the controller is also connected to an alarm and a wireless transmission unit, and the controller is connected to a host computer and a cloud server via the wireless transmission unit and an I / O interface on the controller.

[0013] Furthermore, the AD converter adopts the ICL7135 chip, and outputs the CLK and BUSY signals of the ICL7135 as AD conversion values.

[0014] Furthermore, an overpressure protection unit is included, including a pressure switch connected to the I / O interface of the controller.

[0015] Furthermore, the controller is a single chip microcomputer.

[0016] Compared with the prior art, the vacuum oil purifier described in the utility model has the following advantages:

[0017] The utility model can realize automatic control of the vacuum oil purifier, realize automatic adjustment of the oil purifier, save manpower and material resources, improve the degree of intelligence, and at the same time realize pressure protection, reduce danger, and has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0019] Figure 1 This is a structural schematic diagram of a vacuum oil purifier of the utility model;

[0020] Figure 2 It is the AD converter circuit of the utility model;

[0021] Figure 3 It is a schematic diagram of the control principle of the utility model.

[0022] Description of Reference Numerals

[0023] 1. Coarse filter; 2-Oil supply pump; 3-Evaporation chamber; 4-Condenser; 5-Vacuum pump; 6-Oil drain pump;

[0024] 7-fine filter; 8-heating constant temperature device 9-circulating oil pump; 10-control system. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0029] like Figure 1 , 3 As shown, the utility model provides a vacuum oil purifier, including a vacuum oil purifier body, and a control system 10 connected to the vacuum oil purifier body, the vacuum oil purifier body includes a coarse filter 1, an oil supply pump 2, an evaporation chamber 3, a condenser 4, a vacuum pump 5, an oil discharge pump 6, a fine filter 7, a heating thermostat 8 and a circulating oil pump 9, external oil is sucked in through an inlet valve, enters the coarse filter 1 to filter out solid particle impurities, and enters the evaporation chamber 3 through the oil supply pump 2, and the water and gas impurities in the oil are separated by evaporation, a part of which is discharged after being condensed into liquid through the condenser 4, and the other part is extracted by the oil discharge pump 6, the solid particle impurities in the oil are separated into solid and liquid through the fine filter 7, and the oil is discharged from the oil purifier outlet, the heating thermostat 8 heats the circulating oil entering the evaporation chamber, the oil supply pump 2, the oil discharge pump 6, the circulating oil pump 9 and the pipeline constitute an oil transportation system,

[0030] The control system 10 includes a detection unit, a controller, and an actuator. The detection unit is used to detect the temperature, pressure, liquid level, flow rate, and vacuum degree during the operation of the vacuum oil purifier, and send the data to the controller. The controller is provided with a comparator, which compares the detected data with the comparator and controls the actuator to work according to the comparison result.

[0031] The controller is electrically connected to the oil supply pump motor, the vacuum pump motor, the condenser, the oil discharge pump motor, the circulating oil pump motor and the heating thermostat;

[0032] The actuator comprises an oil supply pump inlet solenoid valve, a circulating oil pump inlet solenoid valve, a vacuum pump inlet solenoid valve, an oil drain pump inlet solenoid valve, and a condenser cooling water pump solenoid valve.

[0033] Specifically, the detection unit includes a vacuum sensor, a temperature sensor, a pressure sensor, a flow sensor, and a liquid level sensor. The vacuum sensor is arranged at the inlet of the vacuum unit, the temperature sensor is arranged at the outlet of the heater and the bottom of the evaporation chamber, the pressure sensor is arranged at the nozzle inlet of the oil supply pump and the inlet of the oil discharge pump, and the flow sensor is arranged at the inlet of the oil supply pump and the inlet of the oil discharge pump.

[0034] Specifically, the detection unit is sent to an AD converter via an operational amplifier and connected to a controller via the AD converter.

[0035] Specifically, the heating thermostatic device 8 includes a heater, a temperature controller, and a relay. The temperature sensor displays the temperature of the oil on the pointer of the temperature controller. When the temperature is lower than the set temperature, the relay closes to heat the oil. When the temperature reaches a temperature higher than the set temperature, the relay releases and returns to the normally open state, and the heating is interrupted. When the temperature drops to the set temperature, the relay closes again.

[0036] Specifically, the controller is also connected to an alarm and a wireless transmission unit, and the controller is connected to a host computer and a cloud server via the wireless transmission unit and an I / O interface on the controller.

[0037] Specifically, the AD converter uses an ICL7135 chip, and outputs the CLK and BUSY signals of the ICL7135 as AD conversion values.

[0038] Specifically, it also includes an overpressure protection unit, including a pressure switch connected to the I / O interface of the controller.

[0039] Specifically, the controller is a single chip microcomputer.

[0040] In the present invention, vacuum, pressure, temperature and flow signals are taken from corresponding sensor signals, sent to AD converters through amplifier circuits, and then connected to controllers through AD converters. Among them, AD converters use ICL7135 chips, such as Figure 2 As shown in the circuit, the CLK and BUSY signals of ICL7135 are output as AD conversion values. This method only occupies two interfaces, T0 and INT0, in the microcontroller 8751. Compared with the traditional parallel port connection method, it saves port lines.

[0041] The utility model sends a signal to a controller when the liquid level sensor detects that the oil exceeds the lower limit oil level, and the controller outputs a control to start the oil pump. When the liquid level sensor detects that the oil exceeds the spray nozzle, the signal is sent to the controller, and the controller controls the vacuum pump motor to stop working.

[0042] The utility model combines the I / O interface of the single chip microcomputer and the pressure switch to form an overpressure protection unit. When the oil outlet pressure exceeds the set value of the pressure switch, the I / O interface of the single chip microcomputer is at a low level, the pressure switch is disconnected, and the control circuit is cut off, causing the entire electrical control circuit to lack power, thereby stopping the equipment and realizing pressure protection.

[0043] All matters not mentioned above are prior art.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vacuum oil purifier, characterized in that: The invention comprises a vacuum oil purifier body and a control system (10) connected to the vacuum oil purifier body. The vacuum oil purifier body comprises a coarse filter (1), an oil supply pump (2), an evaporation chamber (3), a condenser (4), a vacuum pump (5), an oil discharge pump (6), a fine filter (7), a heating thermostat (8) and a circulating oil pump (9). External oil is sucked in through an inlet valve, enters the coarse filter (1) to filter out solid particle impurities, and enters the evaporation chamber (3) through the oil supply pump (2). Water and gas impurities in the oil are separated by evaporation. A part of the oil is discharged after being condensed into a liquid through the condenser (4), and the other part is extracted by the oil discharge pump (6). The solid particle impurities in the oil are separated into solid and liquid through the fine filter (7). The oil is discharged from the outlet of the oil purifier. The heating thermostat (8) heats the circulating oil entering the evaporation chamber (3). The oil supply pump (2), the oil discharge pump (6), the circulating oil pump (9) and the pipeline constitute an oil transportation system. The control system (10) comprises a detection unit, a controller, and an actuator. The detection unit is used to detect the temperature, pressure, liquid level, flow rate, and vacuum degree during the operation of the vacuum oil purifier, and send the data to the controller. The controller is provided with a comparator, which compares the detected data with the comparator, and controls the actuator to work according to the comparison result. The controller is electrically connected to the oil supply pump motor, the vacuum pump motor, the condenser, the oil discharge pump motor, the circulating oil pump motor and the heating thermostat; The actuator comprises an oil supply pump inlet solenoid valve, a circulating oil pump inlet solenoid valve, a vacuum pump inlet solenoid valve, an oil drain pump inlet solenoid valve, and a condenser cooling water pump solenoid valve.

2. A vacuum oil purifier according to claim 1, characterized in that: The heating thermostatic device (8) comprises a heater, a temperature controller, and a relay. The temperature sensor displays the temperature of the oil product on the pointer of the temperature controller. When the temperature is lower than a set temperature, the relay closes to heat the oil product. When the temperature reaches a temperature higher than the set temperature, the relay releases and returns to a normally open state, interrupting the heating. When the temperature drops to the set temperature, the relay closes again.

3. A vacuum oil purifier according to claim 2, characterized in that: The detection unit includes a vacuum sensor, a temperature sensor, a pressure sensor, a flow sensor, and a liquid level sensor. The vacuum sensor is arranged at the inlet of the vacuum unit, the temperature sensor is arranged at the outlet of the heater and the bottom of the evaporation chamber, the pressure sensor is arranged at the nozzle inlet of the oil supply pump and the inlet of the oil discharge pump, and the flow sensor is arranged at the inlet of the oil supply pump and the inlet of the oil discharge pump.

4. A vacuum oil purifier according to claim 1, characterized in that: The detection unit is sent to an AD converter through an operational amplifier and connected to a controller through the AD converter.

5. The vacuum oil purifier according to claim 1, characterized in that: The controller is also connected to an alarm and a wireless transmission unit, and the controller is connected to a host computer and a cloud server via the wireless transmission unit and an I / O interface on the controller.

6. A vacuum oil purifier according to claim 4, characterized in that: The AD converter adopts the ICL7135 chip, and outputs the CLK and BUSY signals of the ICL7135 as AD conversion values.

7. A vacuum oil purifier according to claim 5, characterized in that: An overpressure protection unit is also included, including a pressure switch connected to the I / O interface of the controller.

8. A vacuum oil purifier according to any one of claims 1 to 7, characterized in that: The controller is a single chip microcomputer.

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