Conduction oil regeneration transformation structure and chemical fiber production equipment

Abstract

The utility model discloses a conduction oil regeneration and transformation structure and chemical fiber production equipment. The conduction oil regeneration transformation structure comprises a heater, a head tank, an air condenser and a collecting tank, the heater is arranged in the head tank, and the head tank, the air condenser and the collecting tank are sequentially connected through a first pipeline. The chemical fiber production equipment comprises the conduction oil regeneration transformation equipment. The heater is arranged in the head tank, the heater heats the heat conduction oil, low-boiling-point substances are separated out, and the low-boiling-point substances enter the air condenser through the first pipeline to be condensed and finally flow to the collecting tank to be recycled. Through the mode, the low-boiling-point substance content of the heat conduction oil in the head tank is reduced from 7% to 4% and is lower than 5% of the control standard requirement, the heat conduction oil can be directly put into production and used, production does not need to be stopped, the heat conduction oil is independently regenerated, and the production efficiency is effectively guaranteed. The method is high in operability and convenient for factory production and popularization.

Description

Technical Field

[0001] This application belongs to the field of heat transfer oil regeneration, and particularly relates to a heat transfer oil regeneration and transformation structure and a chemical fiber production device. Background Art

[0002] In the production process of the chemical industry, heat transfer oil is often used as a heat carrier for heating the system reactor and transferring heat during reaction heat release. However, during the synthesis reaction process, the temperature is relatively high, up to 330 degrees Celsius at most, and the heat transfer oil may undergo thermal cracking and oxidation deterioration. The substances generated after deterioration are likely to leak from the reactor equipment into the high-temperature heat transfer oil, contaminating the heat transfer oil, seriously affecting the physical and chemical properties, kinematic viscosity, acid value, and carbon residue value of the heat transfer oil, ultimately leading to the deterioration of the heat transfer oil, and at the same time affecting the operation quality of the reactor. In addition, after the heat transfer oil deteriorates and acidifies, it has high corrosiveness, seriously affecting the safety of production operation. The proportion of low-boiling substances in the heat transfer oil needs to be controlled below 5% before it can be put into use, while the value of low-boiling substances in the deteriorated heat transfer oil often exceeds 5%, affecting the progress of process production.

[0003] Therefore, there is an urgent need to propose a heat transfer oil regeneration and transformation structure. Utility Model Content

[0004] Aiming at the above-mentioned disadvantages or deficiencies of the prior art, the technical problem to be solved by this application is to provide a heat transfer oil regeneration and transformation structure and a chemical fiber production device.

[0005] To solve the above technical problem, this application is achieved through the following technical solutions:

[0006] This application proposes a heat transfer oil regeneration and transformation structure, including: a heater, a high-level tank, an air condenser, and a collection tank. The heater is arranged in the high-level tank, and the high-level tank, the air condenser, and the collection tank are sequentially connected through a first pipeline.

[0007] Further, in the above heat transfer oil regeneration and transformation structure, it further includes: a low-level tank, which is arranged lower than the high-level tank, and the oil inlet of the low-level tank is connected to the oil outlet of the high-level tank, and the oil outlet of the low-level tank is connected to the oil inlet of the high-level tank.

[0008] Further, in the above heat transfer oil regeneration and transformation structure, it further includes: a pump, which is arranged between the oil outlet of the low-level tank and the oil inlet of the high-level tank.

[0009] Further, in the above heat transfer oil regeneration and transformation structure, the high-level tank is also provided with a safety valve, and the safety valve is also connected to the first pipeline.

[0010] Further, in the above-mentioned heat transfer oil regeneration and transformation structure, a nitrogen sealing valve is also provided on the elevated tank.

[0011] Further, in the above-mentioned heat transfer oil regeneration and transformation structure, a manhole is also provided on the elevated tank.

[0012] Further, in the above-mentioned heat transfer oil regeneration and transformation structure, the diameter of the first pipeline is 25 mm.

[0013] Further, in the above-mentioned heat transfer oil regeneration and transformation structure, the elevated tank is connected to the low-level tank through a second pipeline, and the second pipeline is made of steel.

[0014] This application proposes a chemical fiber production device, including the above-mentioned heat transfer oil regeneration and transformation device.

[0015] Further, in the above-mentioned chemical fiber production device, it further includes: a processing device, and the processing device is connected to the low-level tank.

[0016] Compared with the prior art, this application has the following technical effects:

[0017] In this application, a heater is provided in the elevated tank. The heater heats the heat transfer oil, separates out the low-boiling substances, which enter the air condenser through the first pipeline for condensation, and finally flow to the collection tank for recovery. Through the above method, the low-boiling substances in the heat transfer oil in the elevated tank are reduced from 7% to 4%, which is lower than the control standard requirement of 5%. It can be directly put into production use without stopping production and separately regenerating the heat transfer oil, effectively ensuring the production efficiency. This application has strong operability and is convenient for factory production promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes, and advantages of this application will become more obvious:

[0019] Figure 1 : Structural schematic diagram of an embodiment of this application;

[0020] In the figure: elevated tank 10, safety valve 11, manhole 12, nitrogen sealing valve 13, heater 14, low-level tank 15, first pipeline 40, second pipeline 41, air condenser 20, collection tank 30. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0022] As Figure 1 shown, this embodiment proposes a structure for the regeneration and transformation of heat transfer oil, including: a heater 14, a high-level tank 10, an air condenser 20, and a collection tank 30. The heater 14 is arranged in the high-level tank 10, and the high-level tank 10, the air condenser 20, and the collection tank 30 are sequentially connected through a first pipeline 40.

[0023] In this embodiment, a heater 14 is arranged in the high-level tank 10. The heater 14 heats the heat transfer oil to separate low-boiling substances, and then enters the air condenser 20 through the first pipeline 40 for condensation, and finally flows to the collection tank 30 for recovery. Through the above method, the low-boiling substances in the heat transfer oil in the high-level tank 10 are reduced from 7% to 4%, which is lower than the control standard requirement of 5%. It can be directly put into production without stopping production and separately treating the heat transfer oil, effectively ensuring the production efficiency, with strong operability and facilitating the production promotion in factories.

[0024] Furthermore, the diameter of the first pipeline 40 is 25 mm. The DN25 pipe used for the first pipeline 40 is a common size, which is convenient for the transformation of existing equipment, and at the same time ensures the reliability of pipeline connection, facilitating engineering design and construction.

[0025] Furthermore, the structure for the regeneration and transformation of heat transfer oil further includes: a low-level tank 15. The low-level tank 15 is arranged lower than the high-level tank 10, and the oil inlet of the low-level tank 15 is connected to the oil outlet of the high-level tank 10, and the oil outlet of the low-level tank 15 is connected to the oil inlet of the high-level tank 10.

[0026] In this embodiment, the low-level tank 15 and the high-level tank 10 are circularly connected, which can ensure that no manual intervention is required during the regeneration and transformation of heat transfer oil, and can be fully automatically recycled and regenerated. Specifically, the heat transfer oil uses the heater 14, the air condenser 20, and the collection tank 30 in the high-level tank 10 to separate low-boiling substances. The high-level tank 10 circulates the qualified heat transfer oil after separating low-boiling substances to the low-level tank 15 for further industrial application, thus forming a complete circular production line for the regeneration and transformation of heat transfer oil, greatly improving the production efficiency.

[0027] Furthermore, the high-level tank 10 is connected to the low-level tank 15 through a second pipeline 41, and the second pipeline 41 is made of steel.

[0028] Optionally, the steel includes but is not limited to carbon steel and stainless steel. Preferably, the second pipeline 41 is made of carbon steel, which has a lower cost, good mechanical properties and corrosion resistance, and is resistant to high temperature, adapting to the high-temperature working environment of the regeneration and transformation of heat transfer oil in this embodiment.

[0029] Further, the structure for the regeneration and transformation of the heat transfer oil further includes: a pump, which is arranged between the oil outlet of the low-position tank 15 and the oil inlet of the high-position tank to pump the heat transfer oil in the low-position tank 15 into the high-position tank for regeneration.

[0030] Further, the high-position tank 10 is further provided with a safety valve 11, and the safety valve 11 is also connected to the first pipeline 40.

[0031] In this embodiment, the safety valve 11 is arranged on the pipeline connecting the high-position tank 10 and the air condenser 20. When the system pressure exceeds the specified value, opening the safety valve 11 can reduce the air pressure in the pipeline, protect the safety of the equipment and pipelines, and ensure production safety.

[0032] Further, the high-position tank 10 is further provided with a nitrogen sealing valve 13.

[0033] Specifically, the nitrogen sealing valve 13 is arranged on the upper surface of the high-position tank 10, which is used to keep the pressure in the high-position tank 10 stable, and at the same time avoid the direct contact between the materials in the high-position tank 10 and the air, prevent the volatilization and oxidation of the materials, and protect the safety of the equipment.

[0034] Further, the high-position tank 10 is further provided with a manhole 12.

[0035] Specifically, the manhole 12 is arranged on the upper surface of the high-position tank 10 and has a diameter of at least 600 mm, which can allow people to enter the interior of the high-position tank 10 for maintenance, and can also be used as a safety emergency ventilation device.

[0036] This application also proposes a chemical fiber production device, including the heat transfer oil regeneration and transformation device described above.

[0037] Specifically, the heat transfer oil regeneration and transformation device is as described above and will not be elaborated here.

[0038] Further, the chemical fiber production device further includes: a processing device, and the processing device is connected to the low-position tank 15.

[0039] In this embodiment, the processing device is connected to another oil outlet of the low-position tank 15, so that the heat transfer oil regenerated and transformed by the high-position tank 10 in this embodiment flows into the processing device, providing available heat transfer oil for the chemical fiber processing device as a heat carrier to support the processing and production operations of the processing device. At the same time, another oil inlet of the low-position tank 15 is also connected to the processing device to collect the heat transfer oil used by the processing device and wait for the high-position tank 10 to carry out regeneration treatment.

[0040] This application realizes the cyclic regeneration of the heat transfer oil. During production and processing, low-boiling substances are separated, making the heat transfer oil meet the use standards, improving the efficiency and integrity of production operations. In addition, this application is convenient for the transformation of existing equipment and does not require the replacement of the original equipment, meeting the economic requirements.

[0041] In the description of the present application, unless otherwise clearly specified or limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0042] In the present application, unless otherwise clearly specified or limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0043] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, 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 thus should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0044] The above embodiments are only used to illustrate the technical solutions of the present application rather than to limit them. The present application has been described in detail with reference to the preferred embodiments. Those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application, and all should be covered within the scope of the claims of the present application.

Claims

1. A heat transfer oil regeneration modification structure, characterized in that: include: A heater, a high-level tank, an air condenser and a collecting tank, wherein the heater is arranged in the high-level tank, and the high-level tank, the air condenser and the collecting tank are connected in sequence through a first pipeline; It also includes: a low-level tank, the low-level tank is arranged lower than the high-level tank, and the oil inlet of the low-level tank is connected to the oil outlet of the high-level tank, and the oil outlet of the low-level tank is connected to the oil inlet of the high-level tank; It also includes: a pump, which is arranged between the oil outlet of the low-level tank and the oil inlet of the high-level tank; The high-level tank is also provided with a nitrogen sealing valve.

2. The heat transfer oil regeneration modification structure according to claim 1 is characterized in that: The high-level tank is also provided with a safety valve, and the safety valve is also connected to the first pipeline.

3. The heat transfer oil regeneration modification structure according to claim 1 is characterized in that: The high-level trough is also provided with a manhole.

4. The heat transfer oil regeneration modification structure according to claim 1 is characterized in that: The diameter of the first pipe is 25 mm.

5. The heat transfer oil regeneration modification structure according to claim 1 is characterized in that: The high-level tank is connected to the low-level tank via a second pipeline, and the second pipeline is made of steel.

6. A chemical fiber production equipment, characterized in that: It comprises the heat transfer oil regeneration and transformation equipment as described in any one of claims 1 to 5.

7. The chemical fiber production equipment according to claim 6, characterized in that: Also includes: A processing device is connected to the low-level tank.

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