CN213433035U - Heat conduction oil purifying equipment - Google Patents
Heat conduction oil purifying equipment Download PDFInfo
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- CN213433035U CN213433035U CN202021909483.4U CN202021909483U CN213433035U CN 213433035 U CN213433035 U CN 213433035U CN 202021909483 U CN202021909483 U CN 202021909483U CN 213433035 U CN213433035 U CN 213433035U
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Abstract
The utility model discloses a heat-conducting oil purification device, which comprises a distillation still, a rectifying tower, a primary condenser, a secondary condenser, a finished product tank, a light oil tank, a cooling device and a vacuum unit; wherein, the distillation kettle is communicated with the rectifying tower, and the rectifying tower is connected with the primary condenser; the primary condenser is respectively connected with the secondary condenser and the finished product tank, and the secondary condenser is communicated with the light oil tank; the cooling device is respectively connected with the first-stage condenser and the second-stage condenser; the vacuum unit is communicated with the secondary condenser. This embodiment can solve the current problem that can't purify the conduction oil.
Description
Technical Field
The utility model relates to a conduction oil treatment facility technical field especially relates to a conduction oil clarification plant.
Background
In realizing the utility model discloses the in-process, it mainly is to getting rid of the colloid asphaltene that arouses the coking easily in the conduction oil to discover current conduction oil purification treatment equipment, and does not have the clarification plant of independent processing conduction oil. However, the heat transfer oil has the problems of coking, flash point reduction and the like when running for a long time, and the stable running of the system is influenced. In addition, for part of polysilicon enterprises, the heat transfer oil has the risk of process material pollution due to reasons such as heat exchange equipment leakage and the like. Such as the purification of high-chlorine heat transfer oil, which refers to heat transfer oil contaminated with chloride ions.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides a conduction oil clarification plant can solve the current problem that can't purify the conduction oil.
In order to achieve the purpose, the embodiment of the utility model provides a heat-conducting oil purification device, which comprises a distillation still, a rectifying tower, a primary condenser, a secondary condenser, a finished product tank, a light oil tank, a cooling device and a vacuum unit;
wherein, the distillation kettle is communicated with the rectifying tower, and the rectifying tower is connected with the primary condenser; the primary condenser is respectively connected with the secondary condenser and the finished product tank, and the secondary condenser is communicated with the light oil tank; the cooling device is respectively connected with the first-stage condenser and the second-stage condenser; the vacuum unit is communicated with the secondary condenser.
Optionally, comprising: the distillation still is provided with a heater coil communicated with a heat source and used for heating the distillation still.
Optionally, the system further comprises a nitrogen pipeline externally connected to the light oil tank, the finished product tank and the distillation still respectively, a nitrogen displacement valve is arranged on the nitrogen pipeline, and the pressure in the light oil tank, the finished product tank and the distillation still is controlled through the nitrogen pipeline and the nitrogen displacement valve respectively.
Optionally, comprising: and an oil residue discharge pipe is arranged on the distillation still and used for discharging oil residues after the distillation of the heat conduction oil in the distillation still is finished.
Optionally, the method further comprises: the finished product tank and the light oil tank are respectively provided with a filling pipeline and a filling valve for filling products in the finished product tank and the light oil tank.
Optionally, the method further comprises: thermometers are respectively arranged in the distillation still, the rectifying tower, the finished product tank and the light oil tank.
Optionally, the method further comprises: pressure gauges are respectively arranged in the distillation still, the rectifying tower, the finished product tank and the light oil tank.
Optionally, comprising: a metering device is additionally arranged in the distillation kettle.
An embodiment in the above-mentioned utility model has following advantage or beneficial effect: the utility model realizes the technical effect of reducing the content of chloride ions in the heat-conducting oil by utilizing the provided heat energy under the state that the system does not stop through the technical means of batch intermittent or continuous treatment in a reduced pressure distillation mode; the existing production of a factory is not influenced, the heat conduction oil is recycled in an energy-saving way, resources are saved, and the generation amount of dangerous wastes is reduced.
Further effects of the above-mentioned non-conventional alternatives will be described below in connection with the embodiments.
Drawings
The accompanying drawings are included to provide a better understanding of the present invention and are not intended to constitute an undue limitation on the invention. Wherein:
fig. 1 is a schematic structural diagram of a heat transfer oil purification device according to the embodiment of the present invention.
Detailed Description
Exemplary embodiments of the invention are described below with reference to the accompanying drawings, in which various details of embodiments of the invention are included to assist understanding, and which are to be considered exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
At least one embodiment of the utility model provides a conduction oil clarification plant, conduction oil clarification plant includes stills, rectifying column, one-level condenser, second grade condenser, finished product jar, light oil tank, cooling device and vacuum unit. Wherein, the distillation still is communicated with the rectifying tower, and the rectifying tower is connected with the first-stage condenser. The primary condenser is respectively connected with the secondary condenser and the finished product tank, and the secondary condenser is communicated with the light oil tank. The cooling device is respectively connected with the first-stage condenser and the second-stage condenser. The vacuum unit is communicated with the secondary condenser.
Preferably, the number and type of the condensers can be adjusted according to the actual working condition requirements. And the cooling device can be an oil or water cooling device.
It is worth explaining that a metering instrument can be additionally arranged in the distillation kettle, and the heat conduction oil pumped into the distillation kettle can be regulated and controlled according to the numerical value of the metering instrument, so that the effect of continuous purification treatment is realized.
As some embodiments, the method also comprises installing a heater coil on the distillation still for heating the distillation still. Wherein, the heat source can adopt hot oil, electric heating or diesel furnace heating and the like according to the field condition.
In addition, the device also comprises a nitrogen pipeline which is externally connected with the light oil tank, the finished product tank and the distillation still respectively, and a nitrogen replacement valve is arranged on the nitrogen pipeline and is used for controlling the pressure in the light oil tank, the finished product tank and the distillation still respectively. It should be noted that the finished product tank and the light oil tank are respectively provided with a filling line and a filling valve for filling the products in the finished product tank and the light oil tank.
In a preferred embodiment, an oil residue discharge pipe is arranged on the distillation still and used for discharging oil residue after the distillation of the conduction oil in the distillation still is completed.
Other embodiments of the utility model provide a conduction oil clarification plant, as shown in figure 1, conduction oil clarification plant includes stills, heater coil pipe, rectifying column, one-level condenser, second grade condenser, finished product jar, light oil jar, cooling device, vacuum unit, nitrogen gas pipeline, nitrogen gas replacement valve and residual oil discharge pipe. Wherein, a heater coil is arranged on the distillation still, the distillation still is communicated with the rectifying tower, and the rectifying tower is connected with the primary condenser. And a residual oil discharge pipe is arranged on the rectifying tower. The primary condenser is respectively connected with the secondary condenser and the finished product tank, and the secondary condenser is communicated with the light oil tank. The cooling device is respectively connected with the first-stage condenser and the second-stage condenser. The vacuum unit is communicated with the secondary condenser. And nitrogen pipelines are respectively connected with the light oil tank, the finished product tank and the rectifying tower externally, and a nitrogen replacement valve is arranged on the nitrogen pipeline.
It should be noted that a filling line and a filling valve may be provided on the product tank and the light oil tank, respectively, for filling the product in the product tank and the light oil tank. In addition, thermometers are respectively installed in the distillation still, the rectifying tower, the finished product tank and the light oil tank. Pressure gauges are respectively arranged in the distillation still, the rectifying tower, the finished product tank and the light oil tank.
Conduction oil (for example high chlorine conduction oil) purification treatment can be under the state that the conduction oil system does not stop derive the too high conduction oil of chlorine content in the system many batches through the method of vacuum distillation and purify the refining back and reinject original system, can realize intermittent type or continuous purification treatment, also can progressively improve the process of using conduction oil index parameter simultaneously. Specifically, the method comprises the following steps:
the heat transfer oil to be treated is pumped (e.g., through a waste line using a temporary pump) into the still pot while a heat source is slowly introduced into the heater coil of the still pot for heating. Wherein, the heat source can adopt hot oil (for example, using an existing heat conduction oil system), electric heating or diesel furnace heating and the like according to field conditions. The temperature of cold oil in the distillation kettle is slowly raised through a heater coil pipe hot oil control valve of the distillation kettle, a vacuum unit is started when the temperature displayed by a heat transfer oil temperature meter in the distillation kettle is higher than 50 ℃, the vacuum degree is controlled to be at least lower than-0.09 MPa, and the evaporation separation requirement of high-chlorine heat transfer oil can be met.
And (3) inputting the heat conduction oil treated by the distillation still into a rectifying tower for rectification, wherein the component which starts to be gasified is a light component, and the rectified gas enters a light oil tank after being cooled by a primary condenser and a secondary condenser. And determining the liquid site of the cut light component according to the detection result of the oil sample, and recording. Preferably, the vacuum unit is closed, a nitrogen pipeline valve connected to the light oil tank is opened, the system is recovered to normal pressure, and the pressure of the light oil tank is controlled within 0.5 MPa. And confirming that the temperature of the light oil tank is less than 100 ℃ (preventing high temperature from causing scalding and damaging a storage container), filling, controlling the extraction amount through a valve, and discharging light components.
And then checking the vacuum degree to ensure that the vacuum degree is controlled to be at least more than-0.09 MPa in the condensation process of the finished product oil evaporated subsequently, and feeding the condensed heat conduction oil into a finished product tank to obtain the heat conduction oil meeting the requirements. When the vacuum degree is less than-0.09 MPa, the regeneration is finished when the flow of the heat conducting oil (i.e. the heat conducting oil in the finished tank) in the sight glass is changed from a continuous state to a dripping state. The regeneration refers to the separation process of the batch of heat transfer oil, namely, the original heat transfer oil is divided into light component oil (entering a light oil tank), finished product oil (entering a finished product tank) and heavy component oil residue (discharging the oil residue in the distillation kettle through an oil residue discharge pipe).
Preferably, the finished product tank is returned to normal pressure, after the temperature of the finished product tank is confirmed to be less than 100 ℃ (scald and damage to the storage container caused by high temperature) the purified finished product oil is filled, and discharging is stopped when the finished product tank has no liquid level.
In addition, after the distillation of the heat conducting oil is completed through the distillation kettle, when the temperature of the oil residue (residual heat conducting oil) is naturally cooled to be below 100 ℃, the oil residue in the distillation kettle is drained through an oil residue discharge pipe, and the method comprises the following steps: and opening a nitrogen replacement valve to introduce nitrogen into the distillation kettle, and controlling the pressure within 0.1Mpa to prevent the oil residue from splashing. The pressure in the temporary oil residue storage tank (such as an air oil tank and other conventional storage containers) is controlled by switching on and off the vacuum unit, and the oil residue in the distillation kettle is slowly sucked to the temporary storage tank. And (4) closing the external heat source valve, stopping the vacuum unit, slowly injecting nitrogen into the system, and controlling the distillation kettle to be at normal pressure.
It is worth to be noted that the oil residue in the distillation still, the finished product in the finished product tank and the light components in the light oil tank are confirmed to be completely emptied, the pipeline for injecting hot oil is disconnected, the cooling water pipeline between the cooling device and the primary condenser and the cooling water pipeline between the cooling device and the secondary condenser are disconnected, and the nitrogen pipeline in the distillation still is disconnected. And when all the equipment is cooled to the normal temperature, the water supply and the power are cut off, and all the equipment is restored to the standby state. The standby state refers to the condition that the purification equipment is boxed and packaged after being used, so that the purification equipment can be transported to other places for service at any time.
It should be noted that before the purification treatment is performed by the conduction oil purification device, a cooling water inlet line between a cooling device (for example, an oil or water cooling device) and the primary condenser and the secondary condenser is opened. And (4) testing the pressure and detecting that the nitrogen pipelines externally connected with the light oil tank, the finished product tank and the rectifying tower are smooth respectively, keeping the pressure for half an hour, and judging that the air tightness test is passed if the pressure is not reduced. Ensuring that all main container pipelines are completely ensured to be smooth and recovering to normal pressure. And then starting a vacuum test (starting a vacuum unit to pump the pressure to a preset initial pressure value, closing the vacuum unit, sealing the high-chlorine heat-conducting oil purification equipment, observing the pressure change condition to complete the vacuum test), and recovering to a normal pressure state after the vacuum test is qualified. And starting a heat-conducting oil supply pump of the cooling device to establish a cooling system.
The above detailed description does not limit the scope of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A heat-conducting oil purification device is characterized by comprising a distillation still, a rectifying tower, a primary condenser, a secondary condenser, a finished product tank, a light oil tank, a cooling device and a vacuum unit;
wherein, the distillation kettle is communicated with the rectifying tower, and the rectifying tower is connected with the primary condenser; the primary condenser is respectively connected with the secondary condenser and the finished product tank, and the secondary condenser is communicated with the light oil tank; the cooling device is respectively connected with the first-stage condenser and the second-stage condenser; the vacuum unit is communicated with the secondary condenser.
2. The heat transfer oil purification apparatus of claim 1, comprising:
the distillation still is provided with a heater coil communicated with a heat source and used for heating the distillation still.
3. The heat transfer oil purification apparatus of claim 1, further comprising nitrogen gas pipelines externally connected to the light oil tank, the finished product tank and the distillation still, respectively, and a nitrogen gas replacement valve is disposed on the nitrogen gas pipeline, and the pressure in the light oil tank, the finished product tank and the distillation still is controlled by the nitrogen gas pipeline and the nitrogen gas replacement valve, respectively.
4. The heat transfer oil purification apparatus of claim 1, comprising:
and an oil residue discharge pipe is arranged on the distillation still and used for discharging oil residues after the distillation of the heat conduction oil in the distillation still is finished.
5. The heat transfer oil purification apparatus of claim 1, further comprising:
the finished product tank and the light oil tank are respectively provided with a filling pipeline and a filling valve for filling products in the finished product tank and the light oil tank.
6. The heat transfer oil purification apparatus of claim 1, further comprising:
thermometers are respectively arranged in the distillation still, the rectifying tower, the finished product tank and the light oil tank.
7. The heat transfer oil purification apparatus of claim 1, further comprising:
pressure gauges are respectively arranged in the distillation still, the rectifying tower, the finished product tank and the light oil tank.
8. A thermal oil purification apparatus according to any one of claims 1 to 7, comprising:
a metering device is additionally arranged in the distillation kettle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021909483.4U CN213433035U (en) | 2020-09-03 | 2020-09-03 | Heat conduction oil purifying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021909483.4U CN213433035U (en) | 2020-09-03 | 2020-09-03 | Heat conduction oil purifying equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213433035U true CN213433035U (en) | 2021-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021909483.4U Active CN213433035U (en) | 2020-09-03 | 2020-09-03 | Heat conduction oil purifying equipment |
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| Country | Link |
|---|---|
| CN (1) | CN213433035U (en) |
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2020
- 2020-09-03 CN CN202021909483.4U patent/CN213433035U/en active Active
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