A high-precision filter element for purification of high-viscosity residual oil

Abstract

The invention discloses a high-precision filter element for purifying high-viscosity residual oil, and relates to the technical field of petroleum processing equipment. The filter element comprises a protective mechanism, a filtering mechanism and a slag cleaning mechanism. The protective mechanism comprises an outer cylinder, a residual oil channel is formed in the outer cylinder, and an oil inlet pipe penetrating into the residual oil channel and having a controllable flow rate is fixed on the outer cylinder; the residual oil channel comprises an acceleration chamber 1 and a deceleration chamber 1; an acceleration chamber 2 and a deceleration chamber 2 are provided inside the filter cylinder; the slag cleaning mechanism comprises a slag cleaning cylinder penetrating into the bottom of the outer cylinder, and a cavity formed by the filter cylinder and the slag cleaning cylinder is a refined oil channel; when the acceleration chamber 2 is accelerated, the pressure on the inner wall of the refined oil channel is less than the pressure in the residual oil channel, which can realize the adsorption of oil slurry in the residual oil channel, so that the oil slurry in the residual oil channel can be accelerated to pass through the filter cylinder and enter the refined oil channel, thereby realizing secondary acceleration of the filter element for filtering the residual oil, improving the filtering rate of the filter element for the thick oil slurry, increasing the oil volume of the filter element, and realizing the continuity of industrial production.

Description

Technical Field

[0001] The invention relates to the technical field of petroleum processing equipment, in particular to a high-precision filter element for purifying high-viscosity residual oil. Background Art

[0002] Oil often contains impurities such as sand, mud, water and other solid particles. If these impurities are not filtered in time, they will seriously affect the quality of oil products and the effect of subsequent processing technology. Through filtration, these impurities can be removed to ensure the purity and stability of oil products, thereby improving the market competitiveness of products; Due to the advantages of high temperature resistance, low temperature resistance and corrosion resistance, metal filter materials are widely used in petrochemical and many other chemical process processes. Their performance directly affects product quality, production efficiency and the safety of production equipment, and their role is very important;

[0003] In many fields of petrochemical industry, there are high-viscosity and difficult-to-treat materials, such as oil slurry filtration. A notable feature of this type of material is its high viscosity, containing a large amount of colloids and fine particles. The effect of using existing filtration technology to treat it is very unsatisfactory, mainly because the flow rate of the filter element is small, and it is very easy to cause blockage when filtering fine particles in the slurry, resulting in a slow filtration rate when the filter element is filtering thick oil slurry. At the same time, due to the difficulty of online self-cleaning, the online service life of the filter element is very short, and the continuity of industrial production cannot be achieved. Summary of the invention

[0004] The purpose of the present invention is to solve the problems of small flow rate of traditional filter element, easy clogging when filtering fine particles in slurry, and great difficulty in online self-cleaning, and to propose a high-precision filter element for purification of high-viscosity residual oil.

[0005] In order to achieve the above purpose, the present invention adopts the following technology: a high-precision filter element for high-viscosity residual oil purification:

[0006] A high-precision filter element for high-viscosity residual oil purification treatment, comprising a protection mechanism, a filtering mechanism and a slag cleaning mechanism, wherein the protection mechanism comprises an outer cylinder, the outer cylinder and the filter cylinder in the filtering mechanism form a residual oil channel, an oil inlet pipe penetrating into the residual oil channel and having a controllable flow rate is fixed on the outer cylinder; the residual oil channel comprises an acceleration chamber 1 and a deceleration chamber 1; an acceleration chamber 2 and a deceleration chamber 2 are provided inside the filter cylinder; the slag cleaning mechanism comprises a slag cleaning cylinder penetrating to the bottom of the outer cylinder, a spiral filter plate is fixed on the outer wall of the slag cleaning cylinder located inside the filter cylinder, and the cavity formed by the filter cylinder and the slag cleaning cylinder is a refined oil channel;

[0007] As a further description of the above technology, a high-precision filter element for purification of high-viscosity residual oil is as follows:

[0008] The residual oil coming in from the oil inlet pipe at high speed first passes through the residual oil channel, and then enters the essential oil channel after being filtered by the filter cylinder and the filter plate. After being accelerated by each acceleration chamber in the essential oil channel, low pressure is formed, so that the residual oil in the corresponding residual oil channel quickly passes through the filter cylinder to be filtered.

[0009] As a further description of the above technology, a high-precision filter element for purification of high-viscosity residual oil is as follows:

[0010] The second acceleration chamber and the second deceleration chamber in the essential oil channel are at the same height as the first deceleration chamber and the first acceleration chamber in the residual oil channel. The filter cartridge is formed by bending and welding multiple layers of metal sintered mesh.

[0011] As a further description of the above technology, a high-precision filter element for purification of high-viscosity residual oil is as follows:

[0012] The height of the outer cylinder is greater than that of the filter cylinder, and both the outer cylinder and the filter cylinder are fixedly connected to the slag cleaning cylinder.

[0013] As a further description of the above technology, a high-precision filter element for purification of high-viscosity residual oil is as follows:

[0014] The slag cleaning mechanism also includes a slag inlet groove opened on the outer wall of the slag cleaning cylinder, a baffle is fixedly installed at the tail end of the filter plate, and the connection between the filter plate and the baffle is closely attached to one side of the slag inlet groove. The number of spiral turns of the filter plate is a single turn.

[0015] As a further description of the above technology, a high-precision filter element for purification of high-viscosity residual oil is as follows:

[0016] The protection mechanism also includes an oil outlet pipe connected to the essential oil channel and fixed on the outer cylinder. A support seat is fixedly installed at the bottom of the outer cylinder, and the bottom end of the slag cleaning cylinder extends between the outer cylinder and the support seat.

[0017] In summary, due to the use of the above-mentioned technology, a high-precision filter element for purification of high-viscosity residual oil has the following beneficial effects:

[0018] By transferring the thick oil slurry from the oil inlet pipe to the residual oil channel at a relatively high speed, since the residual oil channel is provided with a continuous acceleration chamber 1 and a deceleration chamber 1, the oil slurry entering the residual oil channel will undergo an alternating process of acceleration and deceleration due to the Bernoulli principle. When the acceleration chamber 1 transitions to the deceleration chamber 1, the residual oil flow rate in the acceleration chamber 1 will increase to flush the inner wall of the deceleration chamber 1, thereby achieving a self-cleaning effect, preventing the accumulation of too many fine particles on the surface of the filter cartridge and causing blockage, thereby achieving the initial acceleration of the filter element for residual oil filtration; a part of the residual oil in the residual oil flow channel directly passes through the filter cartridge, and the other part flows along the residual oil flow channel. The oil channel moves forward and is passed to the essential oil channel after being filtered by the filter plate. The acceleration chamber 2 and the deceleration chamber 2 in the essential oil channel are used to realize the continuous acceleration and deceleration process again. However, due to the Bernoulli principle, the pressure on the inner wall of the essential oil channel is less than the pressure in the residual oil channel when the acceleration chamber 2 is accelerated, which will realize the adsorption of the oil slurry in the residual oil channel, so that the oil slurry in the residual oil channel can be accelerated to pass through the filter cylinder into the essential oil channel, thereby realizing the secondary acceleration of the filter element for the residual oil filtration, improving the filtration rate of the filter element for the thick oil slurry, making the oil amount of the filter element larger, and realizing the continuity of industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It shows a schematic diagram of the overall structure provided by an embodiment of the present invention;

[0020] Figure 2 It shows a cross-sectional view of the overall structure provided according to an embodiment of the present invention;

[0021] Figure 3 A partial structural cross-sectional view of an outer cylinder according to an embodiment of the present invention is shown;

[0022] Figure 4 A schematic diagram of the structure of a filter cartridge according to an embodiment of the present invention is shown;

[0023] Figure 5 A main cross-sectional view of the filter cartridge structure provided according to an embodiment of the present invention is shown;

[0024] Figure 6 The embodiment of the present invention provides Figure 2 A magnified view of the structure at A.

[0025] Legend:

[0026] 10. Protection mechanism; 11. Oil outlet pipe; 12. Oil inlet pipe; 13. Outer cylinder; 14. Support seat; 15. Acceleration chamber 1; 16. Deceleration chamber 1;

[0027] 20. Filter mechanism; 21. Filter cartridge; 22. Second deceleration chamber; 23. Second acceleration chamber;

[0028] 30. Slag cleaning mechanism; 31. Slag cleaning cylinder; 32. Filter plate; 33. Slag inlet trough; 34. Baffle. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technology in the embodiments of the present invention, a high-precision filter element for purification of high-viscosity residual oil. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] like Figure 1-Figure 6 As shown, the present invention provides: a high-precision filter element for purifying high-viscosity residual oil, comprising a protective mechanism 10, a filtering mechanism 20 and a residue cleaning mechanism 30, the protective mechanism 10 comprises an outer cylinder 13, the outer cylinder 13 and a filter cylinder 21 in the filtering mechanism 20 form a residual oil channel, the residue cleaning mechanism 30 comprises a residue cleaning cylinder 31 penetrating to the bottom of the outer cylinder 13, and the cavity formed by the filter cylinder 21 and the residue cleaning cylinder 31 is a refined oil channel; an oil inlet pipe 12 penetrating into the residual oil channel and having a controllable flow rate is fixed on the outer cylinder 13; the controllable oil inlet pipe 12 can realize the control of the oil inlet rate.

[0031] In further detail, the residual oil channel includes an acceleration chamber 15 and a deceleration chamber 16, and the cross-sectional flow channel area of ​​the acceleration chamber 15 is smaller than the cross-sectional flow channel area of ​​the deceleration chamber 16; Bernoulli's principle is a basic principle in fluid mechanics, and its essence is the conservation of mechanical energy of an ideal fluid; under ideal conditions, at any cross section of the same flow tube, the sum of the kinetic energy, potential energy and pressure potential energy of a unit volume of fluid is a constant; its most famous inference is: when the flow is constant, the greater the flow rate, the smaller the pressure. The pressure often mentioned in fluid mechanics actually refers to the pressure per unit area, which is the pressure mentioned in ordinary physics. Therefore, according to Bernoulli's principle, when the residual oil passes through a narrow oil channel, that is, when the residual oil passes through the acceleration chamber 15, the residual oil flow rate will become faster. Similarly, when the residual oil passes through a wide flow channel, that is, when the deceleration chamber 16, the residual oil flow rate will become slower.

[0032] Among them, when the acceleration chamber 15 transitions to the deceleration chamber 16, the residual oil flow rate in the acceleration chamber 15 will increase to flush the inner wall of the deceleration chamber 16, achieving a self-cleaning effect, preventing excessive accumulation of fine particles on the surface of the filter cartridge 21 and causing blockage, thereby achieving the initial acceleration of the filter element for residual oil filtration.

[0033] An acceleration chamber 23 and a deceleration chamber 22 are provided inside the filter cylinder 21; the residual oil coming in at high speed from the oil inlet pipe 12 first passes through the residual oil channel, and then enters the essential oil channel after being filtered by the filter cylinder 21 and the filter plate 32. After being accelerated by each acceleration chamber 23 in the essential oil channel, a low pressure is formed, so that the residual oil in the corresponding residual oil channel quickly passes through the filter cylinder 21 to be filtered.

[0034] Among them, the acceleration chamber 23 and the deceleration chamber 22 in the essential oil channel are equal in height to the deceleration chamber 16 and the acceleration chamber 15 in the residual oil channel; at the same time, the acceleration chamber 23 in the essential oil channel and the deceleration chamber 16 in the residual oil channel are on the same horizontal line, and the deceleration chamber 22 in the essential oil channel and the acceleration chamber 15 in the residual oil channel are on the same horizontal line. Therefore, firstly, a part of the residual oil in the residual oil flow channel directly passes through the filter cylinder 21, and the other part moves forward along the residual oil channel, and is filtered by the filter plate 32 and then passed into the essential oil channel, so as to facilitate the removal of the residual oil. The acceleration chamber 23 and the deceleration chamber 22 in the essential oil channel are used to realize the continuous acceleration and deceleration process again. However, due to the Bernoulli principle, the pressure on the inner wall of the essential oil channel is less than the pressure in the residual oil channel when the acceleration chamber 23 is accelerated, which will realize the adsorption of the oil slurry in the residual oil channel, so that the oil slurry in the residual oil channel can be accelerated to pass through the filter cylinder 21 into the essential oil channel, thereby realizing the secondary acceleration of the filter element for the residual oil filtration, improving the filter element The filtering rate of the thick oil slurry increases the oil volume of the filter element, and realizing the continuity of industrial production.

[0035] like Figure 1-Figure 2 and Figure 4-Figure 6 As shown, a spiral filter plate 32 is fixed on the outer wall of the slag cleaning cylinder 31 inside the filter cylinder 21. The filter cylinder 21 is made of multiple layers of metal sintered meshes bent and welded, which is equivalent to a traditional single-layer sintered mesh and can filter more finely. The filter plate 32 is also made of multiple layers of sintered meshes bent and welded to achieve filtering of the oil slurry. The height of the outer cylinder 13 is greater than the height of the filter cylinder 21, and the outer cylinder 13 and the filter cylinder 21 are both fixedly connected to the slag cleaning cylinder 31. The outer cylinder 13 and the filter cylinder 21 form an integral frame to ensure that the channel between the outer cylinder 13 and the filter cylinder 21 transmits the oil slurry. Since the height of the outer cylinder 13 is greater than the height of the filter cylinder 21, a top channel entering the interior of the filter cylinder 21 will be formed between the outer cylinder 13 and the filter cylinder 21, so that the oil slurry coming in at high speed can directly pass through the filter cylinder 21 on the one hand and enter from the top of the filter cylinder 21 on the other hand.

[0036] In further detail, the slag cleaning mechanism 30 also includes a slag inlet groove 33 provided on the outer wall of the slag cleaning cylinder 31, a baffle 34 is fixedly installed at the tail end of the filter plate 32, and the connection between the filter plate 32 and the baffle 34 is closely attached to one side of the slag inlet groove 33. The slag inlet groove 33 is capable of collecting the residue filtered on the surface of the filter plate 32, and the number of spiral turns of the filter plate 32 is a single turn. The single turn enables the liquid coming down from the upper layer of the filter plate 32 to directly enter the interior of the filter cylinder 21, preventing the oil slurry from slowly descending into the interior of the filter cylinder 21 through the multiple layers of the filter plates 32, giving the oil slurry entering the filter cylinder 21 an initial velocity, and ensuring that the oil slurry entering the filter cylinder 21 can achieve a continuous acceleration and deceleration process. The spiral filter plate 32 and the filter cartridge 21 form a spiral flow channel to facilitate the flow of the oil slurry. At the same time, since the filter plate 32 itself is a filtering material, most of the oil slurry will directly pass through the surface of the filter plate 32 and fall directly, while a small part of the oil slurry will move a certain distance along the spiral trajectory of the filter plate 32. This process can push the residue on the surface of the filter plate 32, so that the residue can enter the residue inlet groove 33 along the filter plate 32, thereby realizing a self-cleaning process inside the filter element and improving the filtering effect of the filter element.

[0037] In further detail, the protection mechanism 10 also includes an oil outlet pipe 11 connected to the essential oil channel and fixed on the outer cylinder 13. The oil outlet pipe 11 can facilitate the collection of essential oils, and a support seat 14 is fixedly installed at the bottom of the outer cylinder 13. The bottom end of the slag cleaning cylinder 31 extends between the outer cylinder 13 and the support seat 14. The support seat 14 provides support for the outer cylinder 13. At the same time, the space between the support seat 14 and the outer cylinder 13 facilitates the collection of the residues coming out of the slag cleaning cylinder 31 for centralized treatment.

[0038] Working principle: first, the oil slurry is input from the oil inlet pipe 12, and the valve installed on the oil inlet pipe 12 is used to control the flow rate of the oil inlet pipe 12, so that the oil slurry enters the frying channel at a high speed; since the cross-sectional flow channel area of ​​the acceleration chamber 15 is smaller than the cross-sectional flow channel area of ​​the deceleration chamber 16, it can be known from the Bernoulli principle that when the residual oil passes through a narrow oil channel, that is, when the residual oil passes through the acceleration chamber 15, the residual oil flow rate will become faster. Similarly, when the residual oil passes through a wide flow channel, that is, when the deceleration chamber 16, the residual oil flow rate will become slower; when the acceleration chamber 15 transitions to the deceleration chamber 16, the residual oil flow rate in the acceleration chamber 15 will increase to flush the inner wall of the deceleration chamber 16, thereby achieving a self-cleaning effect, preventing the surface of the filter cartridge 21 from accumulating too many fine particles to cause blockage, and realizing the initial acceleration of the filter element for residual oil filtration.

[0039] The acceleration chamber 23 in the essential oil channel and the deceleration chamber 16 in the residual oil channel are on the same horizontal line, and the deceleration chamber 22 in the essential oil channel and the acceleration chamber 15 in the residual oil channel are on the same horizontal line. Therefore, first, a part of the residual oil in the residual oil flow channel directly passes through the filter cylinder 21, and the other part moves forward along the residual oil channel, and is filtered by the filter plate 32 and then transmitted to the essential oil channel. The acceleration chamber 23 and the deceleration chamber 22 in the essential oil channel are used to realize the continuous acceleration and deceleration process again. However, due to the Bernoulli principle, the pressure on the inner wall of the essential oil channel is less than the pressure in the residual oil channel when the acceleration chamber 23 is accelerated, which will realize the adsorption of the oil slurry in the residual oil channel, so that the oil slurry in the residual oil channel can be accelerated to pass through the filter cylinder 21 and enter the essential oil channel, thereby realizing the secondary acceleration of the filter element for residual oil filtration, improving the filtration rate of the filter element for thick oil slurry, increasing the oil amount of the filter element, and realizing the continuity of industrial production.

[0040] In addition, the spiral filter plate 32 and the filter cartridge 21 form a spiral flow channel to facilitate the flow of the oil slurry. At the same time, since the filter plate 32 itself is a filtering material, most of the oil slurry will directly pass through the surface of the filter plate 32 and fall directly, while a small part of the oil slurry will move a certain distance along the spiral trajectory of the filter plate 32. This process can push the residue on the surface of the filter plate 32, so that the residue can enter the residue inlet groove 33 along the filter plate 32, realizing a self-cleaning process inside the filter element and improving the filtering effect of the filter element. At the same time, the number of spiral turns of the filter plate 32 is a single turn, which gives an initial velocity to the oil slurry entering the filter cartridge 21, ensuring that the oil slurry entering the filter cartridge 21 can achieve a continuous acceleration and deceleration process.

[0041] The above description is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the present invention can replace or change the high-precision filter element for high-viscosity residual oil purification and its inventive concept according to the technology of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-precision filter element for purification of high-viscosity residual oil, comprising a protection mechanism, a filtering mechanism and a residue cleaning mechanism, characterized in that: The protection mechanism comprises an outer cylinder, the outer cylinder and the filter cylinder in the filter mechanism form a residual oil channel, and an oil inlet pipe penetrating into the residual oil channel and having a controllable flow rate is fixed on the outer cylinder; The residual oil channel includes an acceleration chamber 1 and a deceleration chamber 1; The filter cartridge is provided with a second acceleration chamber and a second deceleration chamber inside; The slag cleaning mechanism includes a slag cleaning cylinder that penetrates to the bottom of the outer cylinder, a spiral filter plate is fixed on the outer wall of the slag cleaning cylinder located inside the filter cylinder, and the cavity formed by the filter cylinder and the slag cleaning cylinder is an essential oil channel; the slag cleaning mechanism also includes a slag inlet groove opened on the outer wall of the slag cleaning cylinder, a baffle is fixedly installed at the tail end of the filter plate, and the connection between the filter plate and the baffle is closely attached to one side of the slag inlet groove; The acceleration chamber 2 and the deceleration chamber 2 in the essential oil channel are at the same height as the deceleration chamber 1 and the acceleration chamber 1 in the residual oil channel; at the same time, the acceleration chamber 2 in the essential oil channel and the deceleration chamber 1 in the residual oil channel are on the same horizontal line, and the deceleration chamber 2 in the essential oil channel and the acceleration chamber 1 in the residual oil channel are on the same horizontal line; The height of the outer cylinder is greater than that of the filter cylinder, and a top channel for entering the interior of the filter cylinder is formed between the outer cylinder and the filter cylinder, so that the high-speed oil slurry can directly pass through the filter cylinder on the one hand, and enter from the top of the filter cylinder on the other hand; The number of spiral turns of the filter plate is a single turn; The filter cartridge is made of multiple layers of metal sintered mesh by bending and welding; The residual oil coming in from the oil inlet pipe at high speed first passes through the residual oil channel, and then enters the essential oil channel after being filtered by the filter cylinder and the filter plate. After being accelerated by each acceleration chamber in the essential oil channel, low pressure is formed, so that the residual oil in the corresponding residual oil channel quickly passes through the filter cylinder to be filtered.

2. The high-precision filter element for purification of high-viscosity residual oil according to claim 1, characterized in that: The height of the outer cylinder is greater than that of the filter cylinder, and both the outer cylinder and the filter cylinder are fixedly connected to the slag cleaning cylinder.

3. The high-precision filter element for purification of high-viscosity residual oil according to claim 1, characterized in that: The protection mechanism also includes an oil outlet pipe which is communicated with the essential oil channel and fixed on the outer cylinder.

4. The high-precision filter element for purification of high-viscosity residual oil according to claim 3, characterized in that: A support seat is fixedly installed at the bottom of the outer cylinder, and the bottom end of the slag cleaning cylinder extends between the outer cylinder and the support seat.

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