Petroleum low-temperature dewaxing device

Abstract

The utility model discloses a low-temperature dewaxing device for petroleum, which belongs to the technical field of petroleum dewaxing and comprises a treatment tank and a tank cover, an inner tank is fixedly connected inside the treatment tank, a discharge port is arranged at the bottom of the inner tank, a dewaxing mechanism is arranged between the treatment tank and the inner tank, a filtering and oil discharging mechanism is arranged at the bottom of the discharge port, and a dewaxing mechanism is arranged at the bottom of the dewaxing mechanism. By arranging the dewaxing mechanism, cold air can be conveyed into the inner tank in the process, so that petroleum in the inner tank is in a low-temperature state, wax can be quickly caked and condensed, and the caked wax and the petroleum can be quickly filtered and separated; and meanwhile, hot air can be conveyed into the inner tank after oil discharge is finished, caked wax can be heated, and the wax is liquefied, so that the wax can be conveniently cleaned and collected, and the efficiency of dewaxing separation treatment of petroleum is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum dewaxing, in particular to a petroleum low-temperature dewaxing device. Background Art

[0002] Petroleum refers to a mixture of gaseous, liquid and solid hydrocarbons with natural occurrence. It mainly exists in some areas of the upper crust and is one of the main objects of geological exploration. Petroleum dewaxing is an important link in the oil refining process. The main purpose is to remove wax from petroleum to improve the fluidity and processing properties of petroleum. Wax is a high molecular hydrocarbon in petroleum with a high melting point and viscosity, which has an adverse effect on the refining and processing of petroleum.

[0003] After the oil is extracted, there will be wax in the oil, and the wax in the oil needs to be removed to improve the quality of the oil. However, manual removal of the wax in the oil is time-consuming and labor-intensive, and the removal effect is poor. The existing oil dewaxing device is complicated to operate.

[0004] The existing patent (Announcement No.: CN213739300U) is a petroleum low-temperature dewaxing device. This utility model has a reasonable structure. By setting a conveying mechanism, the wax in the petroleum is cooled by condensing gas to achieve the method of sedimentation and dewaxing in the form of low-temperature products. By setting a first dewaxing mechanism, the wax in the petroleum is filtered and the solid wax formed after condensation is collected and separated from the petroleum, thereby realizing the convenient collection of wax blocks.

[0005] In view of the above problems, existing patents have provided solutions, but there is a problem that the detached wax cannot be cleaned, and there is also a problem that the wax precipitated at low temperature cannot be filtered and separated from water.

[0006] Therefore, a petroleum low-temperature dewaxing device is proposed. Utility Model Content

[0007] The utility model aims to provide a petroleum low-temperature dewaxing device, which can solve the problem that the existing petroleum low-temperature dewaxing devices cannot clean the wax removed and cannot filter and separate the wax precipitated at low temperature from water.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a petroleum low-temperature dewaxing device, comprising a processing tank and a tank cover, wherein an inner tank is fixedly connected to the inside of the processing tank, a discharge port is arranged at the bottom of the inner tank, a dewaxing mechanism is arranged between the processing tank and the inner tank, a filtering and draining mechanism is arranged at the bottom of the discharge port, and an oil inlet filtering mechanism is arranged at the top of the tank cover;

[0009] The dewaxing mechanism includes a bottom ring tube, a top ring tube, a connecting pipe, an air outlet head, a refrigerator, a heater, an air pump and a dewaxing filter assembly. The bottom ring tube is arranged on the side wall of the bottom of the inner tank, the top ring tube is arranged on the side wall of the top of the inner tank, a plurality of connecting pipes are arranged between the bottom ring tube and the top ring tube, a plurality of air outlet heads are arranged on the side wall of the top ring tube and extend to the interior of the inner tank, the refrigerator and the heater are respectively bolted to the side walls of the bottom of the processing tank, the refrigerator and the heater are symmetrically arranged, the two air pumps are bolted to the side walls of the bottom of the processing tank, the input ends of the two air pumps are respectively connected and coordinated with the refrigerator and the heater, the output ends of the two air pumps are connected and coordinated with the bottom ring tube, and the dewaxing filter assembly is arranged in the middle of the inner tank.

[0010] Preferably, the dewaxing filtration assembly includes an electric telescopic rod, a filter bucket, a filter trough and a filter net, the electric telescopic rod is arranged at the top of the tank cover and the output end extends to the bottom of the inner tank, the filter bucket is movably arranged inside the inner tank and fixedly connected to the output end of the electric telescopic rod, a plurality of the filter troughs are opened on the side wall of the filter bucket, and a plurality of the filter nets are respectively arranged inside the filter troughs.

[0011] Preferably, the filtering and draining oil mechanism comprises a cleaning cover, a filter cartridge, an oil drain pipe and a valve, the cleaning cover is threadedly connected to the bottom of the discharge port, the filter cartridge is arranged on the top surface of the cleaning cover and the top is in contact with the discharge port, the oil drain pipe is arranged in the middle of the cleaning cover, and the valve is arranged in the middle of the oil drain pipe.

[0012] Preferably, the oil inlet filter mechanism comprises an oil inlet pipe, a support groove and a filter cup, the oil inlet pipe is arranged in the middle of the tank cover, the support groove is opened on the side wall of the oil inlet pipe, and the filter cup is arranged in the middle of the support groove.

[0013] Preferably, a plurality of temperature conducting rings are provided on the side wall of the inner tank, and the plurality of temperature conducting rings are connected and matched with the connecting pipe.

[0014] Preferably, a sealing head is provided at the bottom of the tank cover, the sealing head is plug-fitted with the inner tank, and the oil inlet pipe is through-fitted with the sealing head.

[0015] Preferably, a cleaning ring is provided on the top of the filter bucket, and the side wall of the cleaning ring is inclined.

[0016] Preferably, two mounting blocks are provided on the side wall of the processing tank.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The present application is provided with a dewaxing mechanism, during which cold air can be transported into the inner tank, the inner tank can be cooled, the petroleum inside the inner tank is kept at a low temperature, the wax can be quickly agglomerated and condensed, and the agglomerated wax and petroleum can be quickly filtered and separated. At the same time, hot air can be transported into the inner tank after the oil is drained, the agglomerated wax can be heated and liquefied, so that the wax can be easily cleaned and collected, thereby improving the efficiency of the dewaxing and separation treatment of the petroleum.

[0019] 2. The present application is provided with a filtering and oil-draining mechanism, which can filter the separated oil again during the oil-draining process, filter out the fine wax particles in the oil, and improve the effect of the oil dewaxing treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is the overall structural view of the utility model;

[0022] Figure 2 It is a left view of the utility model;

[0023] Figure 3 For this utility model Figure 2 The three-dimensional cross-section view at AA in the middle;

[0024] Figure 4 This is a structural view of the dewaxing filter assembly of the utility model;

[0025] Figure 5 This is a structural view of the oil inlet filter mechanism of the utility model.

[0026] Description of reference numerals:

[0027] 1. Processing tank; 2. Tank cover; 3. Inner tank; 4. Discharge port; 5. Dewaxing mechanism; 6. Filter and oil discharge mechanism; 7. Oil inlet and filter mechanism; 51. Bottom ring pipe; 52. Top ring pipe; 53. Connecting pipe; 54. Air outlet; 55. Refrigerator; 56. Heater; 57. Air pump; 58. Dewaxing filter assembly; 581. Electric telescopic rod; 582. Filter bucket; 583. Filter tank; 584. Filter net; 61. Cleaning cover; 62. Filter cartridge; 63. Oil drain pipe; 64. Valve; 71. Oil inlet pipe; 72. Support tank; 73. Filter cup; 8. Temperature conduction ring; 9. End cap; 10. Cleaning ring; 11. Mounting block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figures 1 to 5 , the utility model provides a technical solution:

[0030] A petroleum low-temperature dewaxing device comprises a processing tank 1 and a tank cover 2, wherein an inner tank 3 is fixedly connected to the inside of the processing tank 1, a discharge port 4 is arranged at the bottom of the inner tank 3, a dewaxing mechanism 5 is arranged between the processing tank 1 and the inner tank 3, a filtering and draining oil mechanism 6 is arranged at the bottom of the discharge port 4, and an oil inlet filtering mechanism 7 is arranged at the top of the tank cover 2;

[0031] The dewaxing mechanism 5 includes a bottom ring tube 51, a top ring tube 52, a connecting tube 53, an air outlet head 54, a refrigerator 55, a heater 56, an air pump 57 and a dewaxing filter assembly 58. The bottom ring tube 51 is arranged on the side wall of the bottom of the inner tank 3, the top ring tube 52 is arranged on the side wall of the top of the inner tank 3, a plurality of connecting tubes 53 are arranged between the bottom ring tube 51 and the top ring tube 52, a plurality of air outlet heads 54 are arranged on the side wall of the top ring tube 52 and extend to the interior of the inner tank 3, the refrigerator 55 and the heater 56 are bolted to the side wall of the bottom of the processing tank 1 respectively, the refrigerator 55 and the heater 56 are symmetrically arranged, two air pumps 57 are bolted to the side wall of the bottom of the processing tank 1, the input ends of the two air pumps 57 are respectively connected and matched with the refrigerator 55 and the heater 56, the output ends of the two air pumps 57 are connected and matched with the bottom ring tube 51, and the dewaxing filter assembly 58 is arranged in the middle of the inner tank 3.

[0032] Specifically, Figure 4As shown, the dewaxing filtering assembly 58 includes an electric telescopic rod 581, a filter bucket 582, a filter slot 583 and a filter net 584. The electric telescopic rod 581 is arranged at the top of the tank cover 2 and the output end extends to the bottom of the inner tank 3. The filter bucket 582 is movably arranged inside the inner tank 3 and fixedly connected to the output end of the electric telescopic rod 581. A plurality of filter slots 583 are opened on the side wall of the filter bucket 582, and a plurality of filter nets 584 are respectively arranged inside the filter slots 583.

[0033] Specifically, Figure 5 As shown, the oil inlet filtering mechanism 7 includes an oil inlet pipe 71, a supporting groove 72 and a filter cup 73. The oil inlet pipe 71 is arranged in the middle of the tank cover 2, the supporting groove 72 is opened on the side wall of the oil inlet pipe 71, and the filter cup 73 is arranged in the middle of the supporting groove 72.

[0034] Specifically, Figure 3 As shown, a plurality of temperature conducting rings 8 are provided on the side wall of the inner tank 3 , and the plurality of temperature conducting rings 8 are connected and matched with the connecting pipe 53 .

[0035] Specifically, Figure 4 As shown, a sealing head 9 is provided at the bottom of the tank cover 2, the sealing head 9 is plugged into and matched with the inner tank 3, and the oil inlet pipe 71 is connected and matched with the sealing head 9.

[0036] Specifically, Figure 4 As shown, a cleaning ring 10 is provided on the top of the filter bucket 582, and the side wall of the cleaning ring 10 is inclined.

[0037] Specifically, Figure 1 As shown, two mounting blocks 11 are arranged on the side wall of the processing tank 1 .

[0038] When in use, firstly, the processing tank 1 is installed conveniently through the installation block 11, and the head 9 improves the sealing effect of the tank cover 2, the inner tank 3 and the processing tank 1. When the oil is dewaxed, the oil is first injected into the oil inlet pipe 71, and the filter cup 73 filters the oil to filter out the impurities in the oil. After the oil enters the inner tank 3, the external power supply is connected to start the refrigerator 55 and the air pump 57. The air pump 57 transports the cold air to the bottom ring pipe 51 and then enters the top ring pipe 52 through the connecting pipe 53. The inner tank 3 is cooled by the connecting pipe 53 through the temperature transfer. The temperature transfer of the connecting pipe 53 can be improved by the temperature conducting ring 8. The cold air finally enters the inner tank 3 through the air outlet head 54 to cool the oil, and the oil is reduced. After temperature cooling, the wax in the oil is agglomerated and precipitated, and the electric telescopic rod 581 is started to pull the filter bucket 582 to move upward. At this time, the filter tank 583 and the filter tank 583 filter the agglomerated wax, and the oil enters the bottom of the inner tank 3. At the same time, the cleaning ring 10 scrapes and cleans the inner wall of the inner tank 3, and the filtered oil is discharged through the discharge port 4. After the discharge is completed, the heater 56 and the air pump 57 are started. The air pump 57 transports hot air to the inside of the inner tank 3 to heat the wax, and the agglomerated wax gradually liquefies, and it is convenient to clean the wax through the discharge port 4. In this way, the wax in the oil can be quickly cooled and agglomerated, the oil and the wax blocks can be quickly filtered and separated, and the wax can be easily cleaned.

[0039] Specifically, Figure 4 As shown, the filtering and draining oil mechanism 6 includes a cleaning cover 61, a filter cartridge 62, an oil drain pipe 63 and a valve 64. The cleaning cover 61 is threadedly connected to the bottom of the discharge port 4, the filter cartridge 62 is arranged on the top surface of the cleaning cover 61 and the top is in contact with the discharge port 4, the oil drain pipe 63 is arranged in the middle of the cleaning cover 61, and the valve 64 is arranged in the middle of the oil drain pipe 63.

[0040] When draining the oil, open valve 64, filter the oil through filter cartridge 62, filter out the fine wax in the oil, and drain the oil through drain pipe 63. After draining the oil, close valve 64, and after the wax is heated and liquefied, open valve 64 again to clean the wax.

[0041] By adopting the above technical solution, the problem that the existing petroleum low-temperature dewaxing device cannot clean the wax removed and cannot filter and separate the wax precipitated at low temperature from water is solved.

[0042] Working principle: When the present application is used to dewax the oil, the oil is first injected into the oil inlet pipe 71, and the filter cup 73 filters the oil to filter out the impurities in the oil. After the oil enters the inner tank 3, the external power supply is connected to start the refrigerator 55 and the air pump 57. The air pump 57 delivers cold air to the bottom ring pipe 51 and then enters the top ring pipe 52 through the connecting pipe 53. The inner tank 3 is cooled by the connecting pipe 53 through the temperature transfer. The temperature transfer of the connecting pipe 53 can be improved by the temperature conducting ring 8. The cold air finally enters the inner tank 3 through the air outlet head 54 to cool the oil. After the oil is cooled, the wax in the oil is agglomerated and precipitated, and the electric telescopic rod 581 is started to pull the filter The bucket 582 moves upward, at which time the filter tank 583 and the filter tank 583 filter the agglomerated wax, and the oil enters the bottom of the inner tank 3. The valve 64 is opened, and the oil can be filtered through the filter cartridge 62, and the fine wax in the oil is filtered and discharged through the oil discharge pipe 63. After the oil is discharged, the valve 64 is closed, and the heater 56 and the air pump 57 are started. The air pump 57 transports hot air to the interior of the inner tank 3 to heat the wax, and the agglomerated wax gradually liquefies, and it is convenient to clean the wax through the discharge port 4. In this way, the wax in the oil can be quickly cooled and agglomerated, and the oil and wax blocks can be quickly filtered and separated, and the wax can be easily cleaned.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A petroleum low-temperature dewaxing device, comprising a processing tank (1) and a tank cover (2), characterized in that: The processing tank (1) is fixedly connected to an inner tank (3), a discharge port (4) is provided at the bottom of the inner tank (3), a dewaxing mechanism (5) is provided between the processing tank (1) and the inner tank (3), a filtering and oil-draining mechanism (6) is provided at the bottom of the discharge port (4), and an oil-inlet filtering mechanism (7) is provided at the top of the tank cover (2); The dewaxing mechanism (5) comprises a bottom ring tube (51), a top ring tube (52), a connecting tube (53), an air outlet head (54), a refrigerator (55), a heater (56), an air pump (57) and a dewaxing filter assembly (58), wherein the bottom ring tube (51) is arranged on the side wall of the bottom of the inner tank (3), the top ring tube (52) is arranged on the side wall of the top of the inner tank (3), a plurality of the connecting tubes (53) are arranged between the bottom ring tube (51) and the top ring tube (52), a plurality of the air outlet heads (54) are arranged on the side wall of the top ring tube (52) and The cooling device (55) and the heater (56) are respectively bolted to the side wall at the bottom of the treatment tank (1). The cooling device (55) and the heater (56) are symmetrically arranged. The two air pumps (57) are bolted to the side wall at the bottom of the treatment tank (1). The input ends of the two air pumps (57) are respectively connected to the cooling device (55) and the heater (56). The output ends of the two air pumps (57) are connected to the bottom ring pipe (51). The dewaxing filter assembly (58) is arranged in the middle of the inner tank (3).

2. A petroleum low temperature dewaxing device according to claim 1, characterized in that: The dewaxing filtering assembly (58) comprises an electric telescopic rod (581), a filter bucket (582), a filter slot (583) and a filter screen (584); the electric telescopic rod (581) is arranged at the top of the tank cover (2) and the output end thereof extends to the bottom of the inner tank (3); the filter bucket (582) is movably arranged inside the inner tank (3) and fixedly connected to the output end of the electric telescopic rod (581); a plurality of the filter slots (583) are arranged on the side wall of the filter bucket (582); and a plurality of the filter screens (584) are respectively arranged inside the filter slots (583).

3. A petroleum low temperature dewaxing device according to claim 1, characterized in that: The filtering and draining oil mechanism (6) comprises a cleaning cover (61), a filter cartridge (62), an oil drain pipe (63) and a valve (64); the cleaning cover (61) is threadedly connected to the bottom of the discharge port (4); the filter cartridge (62) is arranged on the top surface of the cleaning cover (61) and the top is in contact with the discharge port (4); the oil drain pipe (63) is arranged in the middle of the cleaning cover (61); and the valve (64) is arranged in the middle of the oil drain pipe (63).

4. A petroleum low temperature dewaxing device according to claim 1, characterized in that: The oil inlet filter mechanism (7) comprises an oil inlet pipe (71), a support groove (72) and a filter cup (73); the oil inlet pipe (71) is arranged in the middle of the tank cover (2); the support groove (72) is opened on the side wall of the oil inlet pipe (71); and the filter cup (73) is arranged in the middle of the support groove (72).

5. A petroleum low temperature dewaxing device according to claim 1, characterized in that: A plurality of temperature conducting rings (8) are provided on the side wall of the inner tank (3), and the plurality of temperature conducting rings (8) are interlocked and matched with the connecting pipe (53).

6. A petroleum low temperature dewaxing device according to claim 4, characterized in that: A sealing head (9) is provided at the bottom of the tank cover (2), the sealing head (9) is plug-fitted with the inner tank (3), and the oil inlet pipe (71) is connected and fitted with the sealing head (9).

7. A petroleum low temperature dewaxing device according to claim 2, characterized in that: A cleaning ring (10) is arranged on the top of the filter bucket (582), and the side wall of the cleaning ring (10) is arranged inclined.

8. The petroleum low temperature dewaxing device according to claim 1, characterized in that: Two mounting blocks (11) are provided on the side wall of the processing tank (1).

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