Oxidation pipe outer wall degreaser

Abstract

A degreaser for the outer wall of an oxidation pipe comprises a degreasing scraping sleeve and a fixing ring. The oil removal scraping sleeve is provided with a sleeve, the bottom of the sleeve is provided with an inverted circular truncated cone structure, the top of the sleeve is provided with an external thread, the oil removal scraping sleeve can be inserted into a pipe hole of an oil bath cover plate of the fraction diesel oxidation stability tester, and the top, provided with the external thread, of the oil removal scraping sleeve can penetrate out of the pipe hole; the fixing ring is provided with an internal thread, so that the oil removal scraping sleeve can be fixed on the pipe hole through the internal thread at the upper part of the pipe hole; when the oxidation tube is taken out of the oil bath of the distillate diesel oxidation stability detector, the oil remover on the outer wall of the oxidation tube can immediately remove the silicone oil adhered on the outer wall of the oxidation tube and simultaneously enables the silicone oil to flow into the oil bath again. According to the utility model, the defects in the prior art are overcome, the heating silicone oil in the oil bath of the distillate diesel oxidation stability tester can be recovered in time, the long-term normal operation of the tester is ensured, the cleanliness of the detector and the operation table can be ensured, and the detection environment is improved.

Description

Technical Field

[0001] The utility model relates to an oxidation tube outer wall deoiler for assisting in removing silicone oil adhered to the outer wall of the oxidation tube in the process of fraction diesel oxidation stability detection, and belongs to the technical field of production and manufacturing of auxiliary components of diesel oxidation stability tester. Background Art

[0002] The oxidation stability of distillate fuel oil refers to the ability of petroleum products to resist heat and oxidation and maintain their properties without permanent changes when stored for a long time or used at high temperature for a long time.

[0003] Due to oxidation, petroleum products will experience changes such as a decrease in free alkali content or an increase in free organic acid content, a decrease in dropping point, a darkening of appearance color, an odor, and a decrease in indicators such as consistency, strength limit, and similar viscosity. At the same time, corrosive products and substances that destroy the grease structure are generated, causing soap and oil separation.

[0004] The oxidation stability of distillate diesel is an important quality indicator of the antioxidant capacity of distillate diesel, which is used to reflect the tendency of diesel to form colloids.

[0005] The oxidation stability of distillate diesel is usually determined by the accelerated oxidation method using a distillate diesel oxidation stability tester. During the test, a certain volume of filtered sample is first placed in an oxidation tube, and then oxygen is introduced to allow the sample to accelerate oxidation under heating for a certain period of time. The sample is then cooled to room temperature and filtered to obtain filterable insoluble matter. An equal volume of a ternary agent consisting of acetone, methanol and toluene is used to wash the adherent insoluble matter from the oxidation tube wall and the oxygen tube wall. After evaporating and removing the ternary agent, the adherent insoluble matter is obtained. The total amount of filterable insoluble matter and adherent insoluble matter is the oxidation stability test value of the sample being tested, expressed in mg / 100mL.

[0006] like Figure 1 As shown in the three-dimensional structural schematic diagram of the distillate diesel oxidation stability tester, the distillate diesel oxidation stability tester in the prior art usually includes a main unit 10, an oxidation tube 20 and a condensing head 30 for condensing gaseous substances when the distillate diesel is heated. The main unit 10 is composed of an oil bath 11, an oxygen flow control system 12, a temperature control system 13 and a condensed water circulation system 14, wherein a heating tube is installed inside the oil bath 11 and is filled with silicone oil for heat conduction, a cover plate 15 is provided on the upper part of the oil bath 11, and a pipe hole 16 is provided on the cover plate 15, and the pipe hole 16 is used for inserting the oxidation tube 20.

[0007] During the test, the oxidation tube 20 containing the sample to be tested is placed in the oil bath 11 through the tube hole 16 on the cover plate 15, and then a condensation head 30 connected to the water inlet pipe and the water outlet pipe of the condensed water circulation system 14 is placed on the upper part of the oxidation tube 20. After the oxidation is completed, the condensation head 30 is unplugged, and then the oxidation tube 20 is taken out of the oil bath 11, and the total amount of filterable insoluble matter and adhesive insoluble matter in the sample to be tested in the oxidation tube 20 can be tested.

[0008] Since the existing distillate diesel oxidation stability tester does not have a recovery device for the silicone oil in the oxidation tube on its main unit, when the oxidation of the distillate diesel is completed, in the process of taking the oxidation tube out of the oil bath, the silicone oil will adhere to the outer surface of the oxidation tube due to its high viscosity, and as the oxidation tube moves, the silicone oil will not only drip onto the surface of the main unit or the operating table, resulting in the loss of silicone oil in the oil bath, but also cause the oil bath liquid level to drop over time, the heating volume to decrease, the heating efficiency to decrease, and the detection instrument and the operating table surface to become dirty, affecting the operating environment. Utility Model Content

[0009] In order to overcome the shortcomings of the prior art, the utility model provides an oxidation tube outer wall degreasing device, so as to timely and cleanly remove the silicone oil adhered to the outer wall of the oxidation tube. On the one hand, the heated silicone oil in the oil bath of the fraction diesel oxidation stability tester is timely recovered to ensure the normal operation of the instrument. On the other hand, the cleanliness of the testing instrument and the operating table is ensured, and the testing environment is improved. To this end, the following technical solutions are adopted:

[0010] An oxidation tube outer wall deoiler is used for removing and recovering silicone oil adhered to the outer wall of the oxidation tube during the distillate diesel oxidation stability test. The distillate diesel oxidation stability test is carried out using a distillate diesel oxidation stability tester. The distillate diesel oxidation stability tester comprises a host, an oxidation tube and a condensing head. The host is used to heat and oxidize the distillate diesel. The oxidation tube is used to place the distillate diesel to be tested. The condensing head is placed on the oxidation tube to condense the gaseous substances generated after the distillate diesel to be tested is heated inside the oxidation tube. The host comprises an oil bath. The inside of the oil bath is filled with silicone oil for heating the oxidation tube. A cover plate is provided on the upper part of the oil bath. A pipe hole is provided on the cover plate. The pipe hole is used for inserting the oxidation tube.

[0011] The oxidation tube outer wall degreaser comprises a degreasing scraper sleeve and a fixing ring;

[0012] The degreasing scraper sleeve comprises a sleeve that can be inserted into the oxidation tube, an inverted truncated cone structure is provided on the outer periphery of the bottom of the sleeve, an external thread is provided on the top of the sleeve, the sleeve can be inserted into the tube hole and the top with the external thread can pass through the tube hole;

[0013] The fixing ring has an internal thread which can cooperate with the external thread at the top of the sleeve, and the fixing ring can lock the oil removal scraper sleeve in the pipe hole through its internal thread at the upper part of the pipe hole.

[0014] As an optimization, the oxidation tube outer wall deoiler is made of soft elastic material and its deoiling scraper sleeve and its fixing ring are integrated into an integral structure through the fusion of external threads and internal threads.

[0015] Furthermore, the inner edge of the bottom end of the sleeve is a trumpet-shaped bottom arc connecting surface.

[0016] Furthermore, the inner edge of the top end of the sleeve is also a trumpet-shaped top arc connecting surface.

[0017] Furthermore, the oxidation tube outer wall oil remover also includes an oleophobic ring, which is sleeved on the sleeve and located between the truncated cone structure and the bottom of the tube hole, and the diameter of the outer ring of the oleophobic ring is larger than the diameter of the bottom of the inverted truncated cone structure.

[0018] As an optimization, the inverted frustum structure of the oil removal scraper sleeve is combined with the oleophobic ring to form a combined component.

[0019] Optionally, the oxidation tube outer wall oil remover is made of soft elastic material, and its oil removal scraper sleeve and its fixing ring are connected by the fusion of external thread and internal thread, and its inverted frustum structure and its oleophobic ring are combined to form an integrated composite component.

[0020] Furthermore, the fixing ring is a truncated cone-shaped annular component.

[0021] Furthermore, the oxidation tube outer wall deoiler also includes a tube rubbing sleeve, and the upper and lower ends of the tube rubbing sleeve are respectively provided with clamping rings. The tube rubbing sleeve is sleeved inside the sleeve and clamped on the upper and lower port edges of the sleeve through the clamping rings at its upper and lower ends.

[0022] Optionally, the pipe cleaning sleeve is made of felt or non-woven fabric.

[0023] Compared with the prior art, the outstanding beneficial effects and significant improvements of the utility model are:

[0024] The utility model provides an oxidation tube outer wall deoiler, which comprises an oil removal scraper sleeve and a fixing ring, wherein the oil removal scraper sleeve has a sleeve that can be inserted into the oxidation tube, an inverted truncated cone structure is arranged on the outer periphery of the bottom of the sleeve, an external thread is arranged on the top of the sleeve, the sleeve can be inserted into the pipe hole of the oil bath cover plate of the fraction diesel oxidation stability tester, and the top of the sleeve with the external thread can pass through the pipe hole, and the fixing ring has an internal thread that can cooperate with the external thread on the top of the sleeve, and the oil removal scraper sleeve can be fixed on the upper part of the pipe hole through the internal thread. On the tube hole, so that when the oxidation tube is taken out from the oil bath of the distillate diesel oxidation stability tester, the oxidation tube outer wall degreaser can immediately and conveniently remove the silicone oil adhering to the outer wall of the oxidation tube and let the silicone oil flow back into the oil bath at the same time, thereby overcoming the shortcomings of the existing distillate diesel oxidation stability tester, not only can the heated silicone oil in the oil bath of the distillate diesel oxidation stability tester be recovered in time to ensure the long-term normal operation of the instrument, but also can ensure the cleanliness of the testing instrument and the operating table, and improve the testing environment;

[0025] The oxidation tube outer wall oil remover provided by the utility model can be simply and conveniently installed in the tube hole of the oil bath cover plate of the existing distillate diesel oxidation stability tester, and can not only smoothly remove and recover the silicone oil adhered to the outer wall of the oxidation tube, but also does not need to make major changes to the existing testing instrument or occupy additional operating space in the testing laboratory, and can be integrated with the existing distillate diesel oxidation stability tester, which is convenient, beautiful and practical.

[0026] The oxidation tube outer wall oil remover specially provided by the utility model overcomes the shortcomings of the prior art. It is not only simple to manufacture, easy to install, and has good effects, but can also instantly and cleanly remove and recover the silicone oil on the outer wall of the oxidation tube to ensure the normal operation of the instrument, and can also ensure the cleanliness of the detection instrument and the operating table and improve the detection environment. Therefore, it has substantial characteristics and progress, and is therefore of great promotion and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solution of the present utility model, a brief introduction to the drawings required for the embodiments of the present utility model is given below.

[0028] Obviously, the drawings described below are only drawings of some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work, but these other drawings also belong to the drawings required for use in the embodiments of the present utility model.

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the distillate diesel oxidation stability tester;

[0030] Figure 2A schematic cross-sectional view of the components of an oxidation tube outer wall degreaser provided in an embodiment of the utility model;

[0031] Figure 3 A schematic cross-sectional view of an integrated oxidation tube outer wall oil remover provided in an embodiment of the utility model;

[0032] Figure 4 A schematic cross-sectional structure diagram of an oxidation tube outer wall oil remover with an oleophobic ring provided in an embodiment of the utility model;

[0033] Figure 5 A schematic diagram of the cross-sectional structure of an oxidation tube outer wall oil remover with an oleophobic ring when installed on a cover plate provided in an embodiment of the utility model;

[0034] Figure 6 A schematic cross-sectional view of a combined component of an oxidation tube outer wall degreaser provided by an embodiment of the utility model, wherein an inverted truncated cone structure of an oil removal scraper sleeve and an oil-repelling ring are combined to form a combined component;

[0035] Figure 7 A schematic cross-sectional structure diagram of an oxidation tube outer wall oil remover in which an oil removal scraper sleeve, a fixing ring and an oil-repelling ring are integrated into one body provided in an embodiment of the utility model;

[0036] Figure 8 A schematic cross-sectional structure diagram of an oxidation tube outer wall oil remover with a tube wiping sleeve provided in an embodiment of the utility model.

[0037] In the figure:

[0038] 10-main engine, 11-oil bath, 12-oxygen flow control system, 13-temperature control system, 14-condensate circulation system, 15-cover plate, 16-tube hole, 20-oxidation tube, 30-condensation head;

[0039] 110- oil removal scraper sleeve, 111- casing, 112- cone structure, 113- external thread, 114- bottom arc connection surface, 115- top arc connection surface, 120- fixing ring, 130- oil-repellent ring, 140- pipe wiping sleeve. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution, beneficial effects and significant progress of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the drawings provided for the embodiments of the utility model. Obviously, all the described embodiments are only partial embodiments of the utility model, rather than all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0041] It should be noted that the term "comprising" and any variations thereof in the specification and claims of the present utility model are intended to cover non-exclusive inclusions, for example, not only including a series of listed technical features and structural components, but also optionally including unlisted technical features and structural components, or optionally including the connection relationship between these technical features and structural components.

[0042] What needs to be understood is:

[0043] In the description of the embodiments of the present invention, terms such as "upper", "lower", "top", "bottom" and other indicative orientation or position words are only based on the orientation or position relationship shown in the drawings of the embodiments of the present invention. They are for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element must have a specific orientation, specific orientation structure and operation. Therefore, they cannot be understood as limitations on the present invention.

[0044] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation" and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a movable connection, or an integrated connection relationship. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two structural elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0045] It should also be noted that:

[0046] The following specific embodiments may be combined with each other, and the same or similar concepts or processes therein may not be described in detail in some embodiments.

[0047] The technical solution of the present utility model is described in detail below with specific embodiments.

[0048] Example

[0049] The present embodiment provides an oxidation tube outer wall deoiler for removing and recovering silicone oil adhered to the outer wall of the oxidation tube when the distillate diesel oxidation stability tester is used to test the distillate diesel oxidation stability.

[0050] like Figure 1 The three-dimensional structure diagram of the distillate diesel oxidation stability tester. Figure 2 A cross-sectional structural diagram of the components of an oxidation tube outer wall degreaser provided by the present utility model is shown as follows:

[0051] An oxidation tube outer wall degreasing device is used for removing and recovering silicone oil adhered to the outer wall of the oxidation tube 20 during the oxidation stability test of distillate diesel;

[0052] The distillate diesel oxidation stability test is carried out by using a distillate diesel oxidation stability tester, which includes a main unit 10, an oxidation tube 20 and a condensing head 30. The main unit 10 is used to heat and oxidize the distillate diesel, the oxidation tube 20 is used to place the distillate diesel to be tested, and the condensing head 30 is sleeved on the oxidation tube 20 to condense the gaseous substances generated after the distillate diesel to be tested is heated inside the oxidation tube 20. The main unit 10 includes an oil bath 11, and the inside of the oil bath 11 is filled with silicone oil for heating the oxidation tube 20. A cover plate 15 is provided on the upper part of the oil bath 11, and a pipe hole 16 is provided on the cover plate 15. The pipe hole 16 is used for inserting the oxidation tube 20, wherein:

[0053] The oxidation tube outer wall degreaser includes a degreasing scraper sleeve 110 and a fixing ring 120;

[0054] The oil removal and scraping sleeve 110 includes a sleeve 111 that can be inserted into the oxidation tube 20. The outer periphery of the bottom of the sleeve 111 is provided with an inverted truncated cone structure 112. The top of the sleeve 111 is provided with an external thread 113. The sleeve 111 can be inserted into the pipe hole 16 and the top of the sleeve 111 provided with the external thread 113 can pass through the pipe hole 16.

[0055] The fixing ring 120 has an internal thread that can cooperate with the external thread 113 at the top of the sleeve 111. The fixing ring 120 can lock the oil removal scraper sleeve 110 in the pipe hole 16 through its internal thread at the upper part of the pipe hole 16.

[0056] From the above description we can see that:

[0057] The degreasing device for the outer wall of the oxidation tube provided in this embodiment includes a degreasing scraper sleeve and a fixing ring, and the degreasing scraper sleeve can cooperate with the fixing ring to be fixed in the tube hole of the oil bath cover plate of the distillate diesel oxidation stability tester. In this way, when the oxidation tube is taken out of the oil bath of the distillate diesel oxidation stability tester, the silicone oil adhered to the outer wall of the oxidation tube can be immediately scraped off by the inverted frustum structure provided on the degreasing scraper sleeve and then flow back into the oil bath to complete degreasing and recovery;

[0058] It can be seen that the oxidation tube outer wall oil remover provided in this embodiment has a simple structure, is easy to manufacture and install, and has a good effect. It can not only instantly and cleanly remove and recover the silicone oil on the outer wall of the oxidation tube to ensure the normal operation of the instrument, but also ensure the cleanliness of the detection instrument and the operating table, improve the detection environment, and during its installation and use, there is no need to make major changes to the existing detection instruments or occupy additional operating space in the detection laboratory, and it can be integrated with the existing distillate diesel oxidation stability tester, which is convenient, beautiful and practical, and therefore has substantial characteristics and progress. Therefore, it is of great promotion and application value.

[0059] like Figure 3 An integrated oxidation tube outer wall oil remover provided in an embodiment of the utility model is shown in its cross-sectional structural schematic diagram. As an optimization, the oxidation tube outer wall oil remover can be made of soft elastic material, and the oil removal scraper sleeve 110 and its fixing ring 120 are integrated into an integrated structure through the fusion of the external thread 113 and the internal thread.

[0060] Obviously, such optimization can simplify the structure of the oxidation tube outer wall deoiler, and make the production and installation more convenient and quick. For example, the polymer soft elastic material can be injected into the mold by injection molding in one step, and the installation can be completed by first flattening it, then inserting it into the tube hole, and then allowing it to recover and get stuck on the wall of the tube hole. It is extremely convenient and quick.

[0061] Furthermore, the inner edge of the bottom end of the sleeve 111 is a trumpet-shaped bottom arc connecting surface 114 .

[0062] Furthermore, the inner edge of the top end of the sleeve 111 is a trumpet-shaped top arc connecting surface 115 .

[0063] Obviously, the inner edge of the bottom end of the sleeve is designed as a trumpet-shaped bottom arc connection surface, which can facilitate the removal of the oxidation tube; and the inner edge of the top end of the sleeve is designed as a trumpet-shaped top arc connection surface, which can facilitate the insertion of the oxidation tube.

[0064] Further, as an optimized implementation method, Figure 4 A schematic cross-sectional view of an oxidation tube outer wall oil remover with an oleophobic ring provided in an embodiment of the utility model, Figure 5 The cross-sectional structure diagram of an oxidation tube outer wall oil remover with an oleophobic ring provided in an embodiment of the utility model when installed on a cover plate is shown as follows:

[0065] The oxidation tube outer wall oil remover provided in this embodiment also includes an oleophobic ring 130, which is sleeved on the sleeve 111 and located between the truncated cone structure 112 and the bottom of the tube hole 16, and the diameter of the outer ring of the oleophobic ring 130 is larger than the diameter of the bottom of the inverted truncated cone structure 112.

[0066] Obviously, by adding an oleophobic ring whose outer diameter is larger than the bottom diameter of the inverted frustum structure, the silicone oil film brought up by the oxidation tube can be better blocked, thereby achieving a better degreasing effect.

[0067] like Figure 6 The cross-sectional structure diagram of an oxidation tube outer wall degreaser provided by the utility model embodiment is shown in which an inverted truncated cone structure of an oil removal scraper sleeve and an oil-repelling ring are combined into a combined component;

[0068] As an optimization, the inverted truncated cone structure 112 of the oil removal scraper sleeve 110 and the oleophobic ring 130 can be combined into a combined component. In this way, the original functions of the inverted truncated cone structure and the oleophobic ring can be retained, and the structure can be simplified, the number of components can be reduced, and installation can be facilitated.

[0069] like Figure 7 The cross-sectional structure diagram of an oxidation tube outer wall oil remover provided by the embodiment of the utility model, in which an oil removal scraper sleeve, a fixing ring and an oil-repelling ring are integrated into one body, is shown;

[0070] As an optimization, optionally, the oxidation tube outer wall oil remover can be made of soft elastic material. In this case, the connection can be completed by fusing the outer thread 113 and the inner thread of the oil scraper sleeve 110 and its fixing ring 120, and combining the inverted frustum structure 112 and the oil-repellent ring 130 into one, so that the entire oxidation tube outer wall oil remover becomes an integrated composite component.

[0071] Obviously, the oxidation tube outer wall degreaser, which becomes an integrated composite component, has only one component, is simpler, and is more convenient to manufacture and install. That is, the oxidation tube outer wall degreaser provided in this embodiment can be simply and conveniently manufactured by injecting soft elastic material into a manufactured mold, and its installation can be completed by simply flattening it, inserting it into the tube hole and clamping it on the tube hole wall, which is convenient and quick.

[0072] Further, such as Figure 7 As shown, the fixing ring 120 can be designed as a truncated cone-shaped annular component, so that the integrated oxidation tube outer wall oil remover can have a more beautiful appearance. Moreover, as an integrated soft elastic component, such a structure is more easily deformed by external force, thereby being more convenient to install.

[0073] like Figure 8 A schematic cross-sectional structure diagram of an oxidation tube outer wall oil remover with a tube wiping sleeve provided in an embodiment of the utility model is shown as follows:

[0074] Furthermore, as an optimization, the oxidation tube outer wall deoiler provided in this embodiment also includes a wiping sleeve 140, and the wiping sleeve 140 is respectively provided with clamping rings at its upper and lower ends. The wiping sleeve 140 is sleeved inside the sleeve 111 and is clamped on the upper and lower port edges of the sleeve 111 through the clamping rings at its upper and lower ends.

[0075] Optionally, the pipe wiper sleeve 140 is made of felt or non-woven fabric.

[0076] Obviously, by using a tube wiping sleeve made of materials such as felt or non-woven fabric, the oxidation tube can further clean the oil stains on the outer wall after the silicone oil adhering to its outer surface is removed and recovered through components such as an inverted truncated cone structure, so that the oxidation tube can be kept clean after being taken out of the oil bath.

[0077] In summary, we can see that:

[0078] The oxidation tube outer wall deoiler provided by the utility model can be conveniently and quickly installed on the existing fraction diesel oxidation stability tester through its oil removal scraper sleeve and fixed ring, and there is no need to make major changes to the existing tester and integrate it with the existing tester, nor is there any need to occupy additional operating space in the test laboratory. The utility model has a simple structure and is easy to manufacture and install. When the oxidation tube is taken out from the oil bath of the fraction diesel oxidation stability tester, the silicone oil adhered to the outer wall of the oxidation tube can be immediately scraped off by structural components such as the inverted frustum provided on the oil removal scraper sleeve, so as to flow back into the oil bath to complete oil removal and recovery. While ensuring the normal operation of the tester, the test instrument and the operating table can be kept clean and tidy, and the test environment is improved. Compared with the existing technology, it has substantial characteristics and progress and is of great promotion and application value.

[0079] In the description of the above manual:

[0080] The descriptions of terms such as "this embodiment", "an embodiment of the utility model", "as shown in...", "further", etc., mean that the specific features, structures, materials or characteristics described in the embodiment are included in at least one embodiment of the utility model. In this specification, the schematic expressions of the above terms are not necessarily for the same embodiment, and the specific features, structures, materials or characteristics described may be combined or combined in a suitable manner in any one or more embodiments; in addition, under the premise that no contradiction arises, a person of ordinary skill in the art may combine or combine the different embodiments and features of different embodiments described in this specification.

[0081] Finally, it should be noted that:

[0082] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions described in the embodiments of the present invention. The non-essential improvements, adjustments or replacements made by those skilled in the art based on the contents recorded in this specification are all within the scope of protection required by the present invention.

Claims

1. An oxidation tube outer wall deoiler, used for removing and recovering silicone oil adhered to the outer wall of the oxidation tube during the distillate diesel oxidation stability test, the distillate diesel oxidation stability test is carried out by a distillate diesel oxidation stability tester, the distillate diesel oxidation stability tester comprises a main engine, an oxidation tube and a condensing head, the main engine is used to heat and oxidize the distillate diesel, the oxidation tube is used to place the distillate diesel to be tested, the condensing head is placed on the oxidation tube to condense the gaseous substances generated after the distillate diesel to be tested is heated inside the oxidation tube, the main engine comprises an oil bath, the inside of the oil bath is filled with silicone oil for heating the oxidation tube, the upper part of the oil bath is provided with a cover plate, the cover plate is provided with a pipe hole, the pipe hole is used for inserting the oxidation tube, and it is characterized in that: The oxidation tube outer wall degreaser comprises a degreasing scraper sleeve and a fixing ring; The degreasing scraper sleeve comprises a sleeve that can be inserted into the oxidation tube, an inverted truncated cone structure is provided on the outer periphery of the bottom of the sleeve, an external thread is provided on the top of the sleeve, the sleeve can be inserted into the tube hole and the top with the external thread can pass through the tube hole; The fixing ring has an internal thread which can cooperate with the external thread at the top of the sleeve, and the fixing ring can lock the oil removal scraper sleeve in the pipe hole through its internal thread at the upper part of the pipe hole.

2. The oxidation tube outer wall degreaser according to claim 1, characterized in that: The oxidation tube outer wall deoiler is made of soft elastic material, and its deoiling scraper sleeve and its fixing ring are integrated into an integral structure through the fusion of external threads and internal threads.

3. The oxidation tube outer wall degreaser according to claim 1, characterized in that: The inner edge of the bottom end of the sleeve is a trumpet-shaped bottom arc connecting surface.

4. The oxidation tube outer wall degreaser according to claim 1 or 3, characterized in that: The inner edge of the top end of the sleeve is a trumpet-shaped top circular arc connecting surface.

5. The oxidation tube outer wall degreaser according to claim 1, characterized in that: Also includes an oleophobic ring; The oleophobic ring is sleeved on the sleeve and is located between the truncated cone structure and the bottom of the tube hole, and the diameter of the outer ring of the oleophobic ring is larger than the diameter of the bottom of the inverted truncated cone structure.

6. The oxidation tube outer wall degreaser according to claim 5, characterized in that: The inverted truncated cone structure of the oil removal scraper sleeve and the oleophobic ring are combined into a combined component.

7. The oxidation tube outer wall degreaser according to claim 5, characterized in that: The oxidation tube outer wall degreaser is made of soft elastic material, and its degreaser sleeve and its fixing ring are connected by the fusion of external thread and internal thread, and its inverted truncated cone structure and its oleophobic ring are combined to form an integrated composite component.

8. The oxidation tube outer wall degreaser according to claim 7, characterized in that: The fixing ring is a truncated cone-shaped annular component.

9. The oxidation tube outer wall degreaser according to claim 1, characterized in that: Also includes a wipe tube sleeve; The friction tube sleeve is provided with clamping rings at the upper and lower ends respectively. The friction tube sleeve is sleeved inside the sleeve and clamped on the upper and lower port edges of the sleeve through the clamping rings at the upper and lower ends.

10. The oxidation tube outer wall degreaser according to claim 9, characterized in that: The pipe wiping sleeve is made of felt or non-woven fabric.

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