A filter for dusty oil and gas

Abstract

The present invention discloses a filter for dusty oil and gas, comprising a cylinder, the top of which is connected to a top cover, the bottom of which is connected to a cone, a first bypass port and a second bypass port are provided on the top cover and the cylinder, the two are connected through a pipeline to form an external passage, and a bypass valve is provided on the pipeline; a plurality of filter elements are provided in the cylinder; a first heating component and a second heating component are provided on the outer wall of the cylinder and the cone. The filter of the present invention, under the joint action of the heating component and the external passage, can not only ensure that the interior of the cylinder and the cone always maintains a relatively high temperature, but also can timely dredge the filter element during operation, thereby achieving effective separation of dust and oil and gas, and effectively avoiding abnormal phenomena such as negative pressure inside the filter, having the advantages of high processing efficiency, good filtering effect, low maintenance cost, high safety, long service life, etc., can effectively remove dust in the oil and gas when used for filtering dusty oil and gas, has high use value, and good application prospects.

Description

Technical Field

[0001] The invention belongs to the technical field of filtering, and in particular relates to a filter for dusty oil and gas. Background Art

[0002] Dust-containing oil and gas refers to a mixture of dust and oil and gas produced during the pyrolysis of oily sludge or other organic matter. For example, the dust-containing oil and gas produced by the pyrolysis of oily sludge mainly includes hydrocarbons, carbon dioxide, hydrogen, carbon monoxide, water vapor and dust. The presence of dust leads to poor utilization of oil and gas. At the same time, the presence of oil and gas also makes it difficult to remove dust, which makes it difficult to efficiently and cleanly utilize dust-containing oil and gas. Therefore, separating dust from dust-containing oil and gas is one of the key technologies to achieve efficient and clean utilization of oil and gas.

[0003] At present, the existing equipment for separating dust from dusty oil and gas is mainly a filter. By passing the dusty oil and gas into the filter, the dust is intercepted by the filter element, while the oil and gas are in a gaseous state and can pass through the filter element, thereby separating the dust from the oil and gas. However, in actual use, the above-mentioned filter still has the following defects: (1) Since the temperature of the dusty oil and gas is higher than the external ambient temperature, the heat in the dusty oil and gas is continuously dissipated to the outside, causing the oil and gas temperature to continuously decrease due to heat dissipation. Therefore, in the process of the dusty oil and gas flowing through the filter, when the actual pressure of the dusty oil and gas exceeds the saturated vapor pressure of certain components, and / or the actual temperature of the dusty oil and gas drops to the dew point temperature of certain components, some components in the dusty oil and gas (such as hydrocarbons and water vapor) will begin to condense into liquids. For example, the condensation of hydrocarbons and water vapor will form a layer of liquid film on the surface of the filter element, which will hinder the passage of airflow, increase the filtration resistance, and reduce the filtration efficiency. (2) As the thickness of the liquid film on the filter element surface continues to increase, more dust particles mix with the condensate to form a viscous or paste-like substance containing oil, water, dust, wax, etc. This viscous or paste-like substance is more likely to adhere to the surface of the filter element and the inner wall of the equipment, which brings more serious problems: (2.1) The viscous or paste-like substance will cause the ash discharge port at the bottom of the filter to be difficult to discharge smoothly due to bridging and arching, affecting the safe and stable operation of the system; (2.2) When the filter element is severely blocked by the viscous or paste-like substance, it is difficult or even impossible for oil and gas to flow into the filter, and the heat brought by the oil and gas cannot be introduced into the filter. As a result, the viscous or paste-like substance on the surface of the filter element cannot rely on the heat brought by the oil and gas itself to discharge the ash. It can be removed by online heating, but the filter element can only be disassembled and cleaned after stopping the machine, which seriously affects production; (2.3) There are many sticky or paste-like substances adhering to the inner wall of the equipment or the surface of the filter element. When the machine is stopped for inspection and maintenance, air enters the equipment, which may cause the sticky or paste-like substances to smolder and produce open flames, etc., which poses a great safety risk; (2.4) During operation, the induced draft fan connected to the filter outlet continues to draw air. If the filter element is seriously blocked by the sticky or paste-like substances, it is easy to cause a high negative pressure in the filter and its inlet pipe, which in turn causes air to enter the filter from the sealing defects on the filter and / or the inlet pipe, forming a major safety risk of sticky or paste-like substances smoldering and / or combustible oil and gas combustion and explosion. Therefore, how to avoid the formation of sticky or paste-like substances on the surface of the filter element and on the inner wall of the dust collector, especially how to effectively clear the filter element blocked by sticky or paste-like substances, is of great significance for achieving efficient removal of dust in dusty oil and gas by the filter and promoting the widespread application of the filter. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a dusty oil and gas filter with high processing efficiency, good filtering effect, low maintenance cost, high safety and long service life.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A filter for dusty oil and gas comprises a cylinder, the top of which is connected to a top cover; a first bypass port is provided on the top cover, a second bypass port is provided on the cylinder, the first bypass port and the second bypass port are connected through a pipeline to form an external passage; a bypass valve is provided on the pipeline between the first bypass port and the second bypass port; a plurality of filter elements are provided in the cylinder; a first heat supply component is provided on the outer wall of the cylinder; a cone is connected to the bottom of the cylinder; and a second heat supply component is provided on the outer wall of the cone.

[0007] As a further improvement of the above technical solution: the first heat supply component includes a first jacket; the first jacket surrounds the outer wall of the cylinder to form a first heat supply cavity between the cylinder and the first jacket; a first heat medium inlet is provided below the first heat supply cavity; a first heat medium outlet is provided above the first heat supply cavity; when in use, the heat medium is introduced into the first heat supply cavity through the first heat medium inlet, and the heat medium flows in the first heat supply cavity through the first heat medium inlet and the first heat medium outlet to provide heat energy, so that the oil and gas temperature inside the cylinder is controlled at 95% to 105% of the rated temperature; the heat medium is one of hot air, steam and heat transfer oil.

[0008] As a further improvement of the above technical solution: a spiral baffle is further provided in the first heating cavity, and the spiral baffle is fixed on the cylinder; and a plurality of expansion joints are further provided on the first jacket.

[0009] As a further improvement of the above technical solution: a partition cylinder is provided around the pipeline of the second bypass port; the partition cylinder passes through the first jacket and is fixed and sealed to the cylinder body; the partition cylinder is sealed to the first jacket.

[0010] As a further improvement of the above technical solution: the second heat supply component includes a second jacket; the second jacket surrounds the outer wall of the cone to form a second heat supply cavity between the cylinder and the second jacket; a second heat medium inlet is provided below the second heat supply cavity; a second heat medium outlet is provided above the second heat supply cavity; when in use, the heat medium is introduced into the second heat supply cavity through the second heat medium inlet, and the heat medium flows in the second heat supply cavity through the second heat medium inlet and the second heat medium outlet to provide heat energy, so that the oil and gas temperature inside the cone is controlled at 95% to 105% of the rated temperature; the heat medium is one of hot air, steam and heat transfer oil.

[0011] As a further improvement of the above technical solution: a spiral baffle is further provided in the second heating cavity, and the spiral baffle is fixed on the cone; and a plurality of expansion joints are also provided on the second jacket.

[0012] As a further improvement of the above technical solution: the cone is connected to an oil and gas inlet; a partition cylinder is arranged around the pipeline of the oil and gas inlet; the partition cylinder passes through the second jacket and is fixed and sealed to the cone; the partition cylinder is sealed to the second jacket.

[0013] As a further improvement of the above technical solution: a flower plate is provided in the cylinder, and the flower plate is located at the upper part of the cylinder; the filter element is detachably installed below the flower plate; each filter element is vertically arranged in the cylinder; the filter element is any one of a filter bag, a filter cartridge, and a sintered filter element; the second bypass port is located below the flower plate.

[0014] As a further improvement of the above technical solution: a first flange is provided at the bottom of the top cover; a second flange is provided at the top of the cylinder; the top cover and the cylinder are connected via the first flange and the second flange; a sealing gasket is provided between the first flange and the second flange.

[0015] As a further improvement of the above technical solution: an oil and gas outlet is provided on the top cover; and the oil and gas outlet is connected to an induced draft fan.

[0016] As a further improvement of the above technical solution: an ash discharge port is provided at the bottom of the cone.

[0017] As a further improvement of the above technical solution: it also includes an arch breaker; the arch breaker is located at the bottom of the cone or the ash discharge port; the arch breaker is a reciprocating arch breaker or a rotary arch breaker.

[0018] As a further improvement of the above technical solution: the reciprocating arch breaker includes a linear motion mechanism, a main shaft and an arch breaking element; the arch breaking element is located inside the cone and is connected to one end of the main shaft entering the cone, and the other end of the main shaft is connected to the linear motion mechanism; the linear motion mechanism is located outside the cone; the arch breaking element is arranged in a vertical plane intersecting the main shaft, and is distributed within the vertex angle range of the cone.

[0019] As a further improvement of the above technical solution: the arch-breaking element is any one of a round rod, a rectangular plate, a trapezoidal plate, a combination of a round rod and a rectangular plate, and a combination of a round rod and a trapezoidal plate; the linear motion mechanism is one of a slider pair, a roller pair, a gear rack pair, a spiral pair, a fluid pressure cylinder, a linear motor, and a Salus linear motion mechanism.

[0020] As a further improvement of the above technical solution: a packing seal assembly is provided between the main shaft and the cone; the packing seal assembly includes a packing box, a soft packing, a packing gland, a stud, a nut, and an anti-loosening washer.

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] In the filter of dust and oil gas of the present invention, a heating component is provided on the outer wall of the cylinder and the cone, which can ensure that the interior of the cylinder and the cone always maintains a relatively high temperature, so that the temperature of the dust and oil gas will not be greatly reduced after entering the interior of the filter, so that the filter element can be used to effectively separate the dust and oil gas. On this basis, a bypass port is provided on the top cover and the cylinder, which are connected by a pipeline to form an external passage for dust and oil gas between the top cover and the cylinder, and the external passage can be used to dredge the filter element. Specifically: when the filter element is severely clogged, the bypass valve is opened to bring a large amount of dust and oil gas into the interior of the filter, so that the large amount of heat energy carried by the dust and oil gas can be used to quickly evaporate the condensed liquid on the filter element (including the condensed liquid in the viscous or paste-like substance), and at the same time, as The continuous evaporation of the condensed liquid, with the help of pulse spraying and gravity, causes the dust to fall from the filter element, thereby unblocking the blocked filter element and promoting the filter element to quickly enter a normal operating state, which is beneficial to improving the output rate of the equipment, increasing production and reducing consumption. More importantly, under the joint action of the heating components and the external passage, it can not only ensure that the inside of the cylinder and cone always maintains a high temperature, which can effectively avoid condensation inside the filter, but also can continue to effectively dredge the filter element when the filter resistance is abnormally high, which can effectively avoid high-risk conditions such as negative pressure inside the filter. Therefore, while improving the processing efficiency and filtering effect, it can also improve the safety and reliability of the filter, and while reducing the equipment maintenance cost, it can also extend the operation cycle and service life of the equipment. In addition, with the help of the bypass valve and the external channel, it is possible to quickly and accurately determine whether the filter element is blocked. Specifically, if the overall resistance of the subsystem where the filter is located is significantly greater than the normal value, open the bypass valve. If the overall resistance of the subsystem drops rapidly and significantly, it means that the filter element is blocked. On the contrary, if the overall resistance of the subsystem does not drop significantly, it means that the filter element is not blocked. The filter for dusty oil and gas of the present invention has the advantages of high processing efficiency, good filtering effect, low maintenance cost, high safety, long service life, etc. When used for filtering dusty oil and gas, it can quickly remove dust in the oil and gas and can operate normally for a long time, which is beneficial to increasing production and reducing consumption, has high use value and good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] Figure 1 This is a schematic diagram of the structure of the filter for dusty oil and gas in Example 1 of the present invention.

[0025] Legend:

[0026] 1. Top cover; 2. First bypass port; 3. First flange; 4. Bypass valve; 5. Second flange; 6. Second bypass port; 7. Flower plate; 8. Cylinder; 9. First jacket; 10. Spiral baffle; 11. Filter element; 12. First heat medium inlet; 13. Second heat medium outlet; 14. Oil and gas inlet; 15. Partition cylinder; 16. Linear motion mechanism; 17. Main shaft; 18. Packing seal assembly; 19. Arch breaking element; 20. Ash discharge port; 21. Second heat medium inlet; 22. Second jacket; 23. Cone; 24. Expansion joint; 25. First heat medium outlet; 26. Bolts; 27. Nuts; 28. Anti-loosening pads; 29. ​​Oil and gas outlet. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0028] In the description of the present invention, it should be noted that the terms "center", "up", "down", "front", "back", "left", "right", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] Example 1

[0030] like Figure 1 As shown, the filter for dusty oil and gas in this embodiment includes a cylinder 8, the top of the cylinder 8 is connected to a top cover 1, the top cover 1 is provided with a first bypass port 2, the cylinder 8 is provided with a second bypass port 6, the first bypass port 2 and the second bypass port 6 are connected through a pipeline to form an external passage; a bypass valve 4 is provided on the pipeline between the first bypass port 2 and the second bypass port 6; a plurality of filter elements 11 are provided in the cylinder 8; a first heating component is provided on the outer wall of the cylinder 8; a cone 23 is connected to the bottom of the cylinder 8; and a second heating component is provided on the outer wall of the cone 23.

[0031] In the present invention, a heating component is provided on the outer wall of the cylinder 8 and the cone 23, which can ensure that the interior of the cylinder 8 and the cone 23 always maintains a relatively high temperature, so that the temperature of the dust-containing oil gas will not be greatly reduced after entering the interior of the filter, so that the filter element can be used to effectively separate the dust and oil gas. However, in the filtering process, the filter element will inevitably be blocked. Therefore, when the filter element is severely blocked, the oil gas rarely or cannot flow through the filter. To address this problem, in the present invention, a bypass port is provided on the top cover 1 and the cylinder 8, and they are connected by a pipeline, so that an external passage for dust-containing oil gas is formed between the top cover 1 and the cylinder 8, and the external passage can be used to dredge the filter element. Specifically: when the filter element is severely blocked, the bypass valve is opened to bring a large amount of dust-containing oil gas into the filter. The condensed liquid on the filter element (including the condensed liquid in the viscous or paste-like substance) can be quickly evaporated by using the large amount of heat energy carried by the dusty oil and gas. At the same time, as the condensed liquid continues to evaporate, the dust is dropped from the filter element by means of pulse spraying and gravity, thereby unblocking the blocked filter element and promoting the filter element to quickly enter the normal operation state, which is beneficial to improve the output rate of the equipment, increase production and reduce consumption. More importantly, under the joint action of the heating components and the external passage, the filter element can be continuously and effectively unblocked when the filter is operating abnormally, thereby effectively avoiding the high-risk conditions such as negative pressure inside the filter, thereby improving the processing efficiency and filtering effect while also improving the safety and reliability of the filter, and reducing the equipment maintenance cost while also extending the operation cycle and service life of the equipment. In addition, with the help of the bypass valve and the external channel, it is possible to quickly and accurately determine whether the filter element is blocked. Specifically, if the overall resistance of the subsystem where the filter is located is significantly greater than the normal value, open the bypass valve. If the overall resistance of the subsystem drops rapidly and significantly, it means that the filter element is blocked. On the contrary, if the overall resistance of the subsystem does not drop significantly, it means that the filter element is not blocked.

[0032] In this embodiment, the first heat supply component includes a first jacket 9, which surrounds the outer wall of the cylinder 8 to form a first heat supply cavity between the cylinder 8 and the first jacket 9. A first heat medium inlet 12 is provided below the first heat supply cavity, and a first heat medium outlet 25 is provided above the first heat supply cavity. When in use, the heat medium is introduced into the first heat supply cavity through the first heat medium inlet 12, and the heat medium flows in the first heat supply cavity through the first heat medium inlet 12 and the first heat medium outlet 25, and heat energy is provided to control the oil and gas temperature inside the cylinder 8 to 95% to 105% of the rated temperature, which can effectively prevent the filter element 11 from being seriously blocked and a large amount of viscous or paste-like substances adhering to the inner wall of the filter, and can effectively control the heating energy consumption.

[0033] In the present invention, the heat medium is one of hot air, steam and heat transfer oil. Specifically, in this embodiment, the heat medium used is steam.

[0034] In the present invention, a suitable heat medium is selected based on a comprehensive evaluation of factors such as heating demand, energy supply, safety, and cost, among which hot air has wide applicability and heating uniformity; steam has fast heating speed, high heating efficiency, and low cost; and thermal oil has strong high-temperature heating capacity, precise temperature control, and good thermal stability.

[0035] In this embodiment, a spiral baffle 10 is further provided in the first heating cavity, and the spiral baffle 10 is fixed on the cylinder 8. By arranging the spiral baffle 10 in the first heating cavity, the heat transfer area between the heat medium and the dusty oil and gas can be increased, and the heat transfer coefficient can be improved, so that heat can be supplied to the cylinder 8 more quickly, so that the temperature in the cylinder 8 will not drop significantly, which is beneficial to prevent oil and gas condensation, and further beneficial to improve the filtering effect, and more importantly, it can reduce the energy consumption of the equipment.

[0036] In this embodiment, a plurality of expansion joints 24 are further provided on the first jacket 9, such as two expansion joints 24 are provided on the first jacket 9. In the present invention, by providing the expansion joints 24, the temperature difference stress on the cylinder, the first jacket 9 and the cylinder 8 can be reduced, which is beneficial to improving the safety and reliability of the equipment.

[0037] In this embodiment, a partition tube 15 is provided around the pipeline of the second bypass port 6; the partition tube 15 passes through the first jacket 9 and is fixed and sealedly connected to the cylinder 8. In the present invention, by providing the partition tube 15, the assembly and welding of the pipeline of the second bypass port 6 and the cylinder 8 can be facilitated, thereby improving the manufacturing quality and efficiency.

[0038] In this embodiment, the second heat supply component includes a second jacket 22; the second jacket 22 surrounds the outer wall of the cone 23, so that a second heat supply cavity is formed between the cone 23 and the second jacket 22; a second heat medium inlet 21 is provided below the second heat supply cavity; a second heat medium outlet 13 is provided above the second heat supply cavity; when in use, the heat medium is introduced into the second heat supply cavity through the second heat medium inlet 21, and the heat medium flows in the second heat supply cavity through the second heat medium inlet 21 and the second heat medium outlet 13 to provide heat energy, so that the oil and gas temperature inside the cone 23 is controlled at 95% to 105% of the rated temperature. The heat medium is one of hot air, steam and heat transfer oil. Specifically, in this embodiment, the heat medium used is steam.

[0039] In the present invention, during the start-up and shutdown process or under abnormal operating conditions, a large amount of viscous or pasty substances accumulate at the bottom of the cone and cannot be unloaded. At this time, heat medium can be introduced into the second heating cavity, or the heat medium flow rate can be increased, thereby heating the viscous or pasty substances in the cone, and quickly evaporating the condensed liquid in the viscous or pasty substances, so as to restore smooth unloading and normal production as soon as possible, increase production, reduce consumption, and enhance the safety and stability of the equipment.

[0040] In this embodiment, a spiral baffle 10 is further provided in the second heating cavity, and the spiral baffle 10 is fixed on the cone 23. By arranging the spiral baffle 10 in the heating cavity, the heat transfer area between the heat medium and the dusty oil and gas can be increased, and the heat transfer coefficient can be improved, so that heat can be supplied to the cone 23 more quickly, so that the temperature in the cone will not drop significantly, which is beneficial to prevent oil and gas condensation, and is beneficial to smooth ash unloading. More importantly, it can reduce the energy consumption of equipment.

[0041] In this embodiment, the second jacket 22 is further provided with a plurality of expansion joints 24, such as one expansion joint 24 is provided on the second jacket 22. In the present invention, by providing the expansion joint 24, the temperature difference stress borne by the cone 23 and the second jacket 22 can be reduced, which is beneficial to improving the safety and reliability of the equipment.

[0042] In this embodiment, the cone 23 is connected with an oil and gas inlet 14, which is located in the middle of the cone 23; a partition cylinder 15 is provided around the pipeline of the oil and gas inlet 14, and the partition cylinder 15 is fixed and sealedly connected to the cone 23 after passing through the second jacket 22, and the partition cylinder 15 is sealedly connected to the cone 23. In the present invention, by providing the partition cylinder 15, the assembly and welding of the oil and gas inlet 14 pipeline and the cone 23 can be facilitated, thereby improving the manufacturing quality and efficiency.

[0043] In this embodiment, a flower plate 7 is provided in the cylinder 8, which is located at the upper part of the cylinder 8, and a filter element 11 is detachably installed below the flower plate 7; each filter element 11 is vertically arranged in the cylinder 8, wherein the filter element 11 is any one of a filter bag, a filter cartridge, and a sintered filter element, and specifically, the filter element 11 is a filter bag.

[0044] In this embodiment, the second bypass opening 6 is located below the flower plate 7 .

[0045] In this embodiment, a first flange 3 is provided at the bottom of the top cover 1; a second flange 5 is provided at the top of the cylinder 8; the top cover 1 and the cylinder 8 are connected via the first flange 3 and the second flange 5, and a sealing gasket (not shown in the figure) is provided between the first flange 3 and the second flange 5. Specifically, the top cover 1 and the cylinder 8 are connected together using the first flange 3 and the second flange 5 and bolts 26, nuts 27, and anti-loosening washers 28.

[0046] In this embodiment, each filter element 11 is vertically arranged in the cylinder 8, wherein the filter element 11 is any one of a filter bag, a filter cartridge, and a sintered filter element. Specifically, the filter element 11 is a filter bag.

[0047] In the present invention, when selecting the filter element for dusty oil and gas, it is necessary to comprehensively consider multiple factors such as filtration efficiency, resistance, temperature resistance, corrosion resistance, convenience of cleaning and replacement, economy and environmental protection, and weigh and choose according to actual needs and working conditions to select the most suitable filter medium, among which the filter bag has high dust removal efficiency and can capture dust above 0.3μm, so that the dusty oil and gas can be purified to a lower concentration; it has a long service life, is not easy to be damaged, and has relatively low maintenance costs; it has good air permeability, moderate resistance, and has little impact on the operation of the oil and gas system. The filter cartridge has a high dust removal efficiency of more than 99%, which is suitable for high-concentration working conditions; it has a compact structure, is easy to install, and occupies a small space; the filter cartridge has a variety of materials, and the appropriate filter material can be selected according to specific needs. Sintered filter elements (such as sintered metals and sintered ceramics) have good high temperature resistance and can work stably under high temperature environments; they have high filtration efficiency and can remove most of the particulate matter in oil and gas; they have a stable structure and a long service life.

[0048] In this embodiment, the top cover 1 is provided with an oil and gas outlet 29 , and the oil and gas outlet 29 is connected to an induced draft fan.

[0049] In this embodiment, an ash discharge port 20 is provided at the bottom of the cone 23 .

[0050] In this embodiment, an arch breaker is also included, wherein the arch breaker is located at the bottom of the cone 23 or at the ash discharge port 20. The specific arch breaker is a reciprocating arch breaker. In another embodiment, the arch breaker is a rotary arch breaker.

[0051] In this embodiment, the reciprocating arch breaker includes a linear motion mechanism 16, a main shaft 17 and an arch breaking element 19; the arch breaking element 19 is located inside the cone 23, connected to one end of the main shaft 17 entering the cone 23, and the other end of the main shaft 17 is connected to the linear motion mechanism 16; the linear motion mechanism 16 is located outside the cone 23; the arch breaking element 19 is arranged in a vertical plane perpendicular to the main shaft 17. More specifically, the arch breaking element 19 is arranged within the vertex angle range of the cone 23, and is symmetrically arranged around the vertical line intersecting the main shaft 17. In this embodiment, the arch breaking element is fixedly connected to the end of the main shaft extending into the ash discharge port or the inner cavity of the cone.

[0052] In this embodiment, the number of arch-breaking elements 19 is ≥ 1. Specifically, the number of arch-breaking elements 19 is 4, the angle between two adjacent arch-breaking elements 19 is 18 degrees, the four arch-breaking elements 19 are all arranged within the vertex angle range of the cone 23, and are symmetrically arranged around a vertical line intersecting the main axis 17. The shape of the area surrounded by the four arch-breaking elements 19 matches the shape of the cone 23, and has an excellent arch-breaking effect.

[0053] In this embodiment, the arch-breaking element 19 is any one of a round rod, a rectangular plate, a trapezoidal plate, a combination of a round rod and a rectangular plate, and a combination of a round rod and a trapezoidal plate. Specifically, the arch-breaking element 19 is a round rod.

[0054] In this embodiment, the linear motion mechanism 16 is one of a slider pair, a roller pair, a gear rack pair, a screw pair, a linear motor, a fluid pressure cylinder, and a Sarus linear motion mechanism. Specifically, the linear motion mechanism 16 is a slider pair.

[0055] In the present invention, in specific applications, each linear motion mechanism has its unique advantages and disadvantages. When selecting, it is necessary to comprehensively consider factors such as specific application scenarios, precision requirements, and cost budgets. Among them, the slider pair has a simple structure, is easy to manufacture and maintain, and can achieve stable linear motion, but has large friction, requires lubrication to reduce wear, and has limited precision. The roller pair replaces sliding friction with rolling friction, which reduces friction and wear, but has a relatively complex structure, high manufacturing cost, and high requirements for installation accuracy and lubrication conditions. The gear rack pair has high transmission efficiency and compact structure, and can achieve precise linear motion, but has a high manufacturing cost, requires regular lubrication and maintenance, and may generate large noise and vibration. The spiral pair (such as a screw nut mechanism and a worm gear mechanism) can convert rotational motion into precise linear motion, has high transmission accuracy and rigidity, but has high requirements for processing accuracy, and may generate large friction heat and wear under high speed or heavy load conditions. The linear motor does not require an intermediate transmission mechanism, has a simple structure, fast response speed, and high precision, but has a high cost and high requirements for the working environment and installation accuracy. Fluid pressure cylinders have large thrust and can easily control the output force by adjusting the fluid pressure, but they require a matching pressure source (air pressure, hydraulic pressure, etc.) and control system, and have high sealing requirements to prevent leakage. Sarrus Linkage has a sturdy structure and can withstand interference forces in any direction. It has a large range of motion and can increase its strength by adding a connecting rod structure, but it consumes more materials and has a relatively complex structure, which increases manufacturing costs and maintenance difficulties.

[0056] In this embodiment, a packing seal assembly 18 is provided between the main shaft 17 and the cone 23; the packing seal assembly 18 includes a packing box, a soft packing, a packing gland, a stud, a nut, and an anti-loosening washer.

[0057] In the present invention, during normal operation, the arch-breaking element is as close to the packing seal assembly as possible, thereby reducing the bridge and arching of dust, viscous or paste-like materials during the ash unloading process caused by the main shaft and the arch-breaking element extending into the ash unloading port or the inner cavity of the cone. If the ash unloading is not smooth, the reciprocating arch-breaking device is started, and the arch-breaking element reciprocates in the cone or the inner cavity of the ash unloading port to destroy the bridge and arch support formed by the dust, viscous or paste-like materials that are not continuously accumulated in the cone or the inner cavity of the ash unloading port until the ash unloading is smooth, and then the arch-breaking device is stopped at the position of the arch-breaking element close to the packing seal assembly, so as to promote the normal operation of the equipment, improve the output rate of the equipment, and reduce the life cycle cost of the equipment.

[0058] The filter for dusty oil and gas of the present invention, under the joint action of the heating component and the external passage, can not only ensure that the interior of the cylinder and the cone always maintains a high temperature, but also can timely dredge the filter element during operation, thereby realizing effective separation of dust and oil and gas, and effectively avoiding high-risk conditions such as negative pressure inside the filter. It has the advantages of high processing efficiency, good filtering effect, low maintenance cost, high safety, long service life, etc. When used for filtering dusty oil and gas, it can quickly remove dust in the oil and gas, and can operate normally for a long time, which is beneficial to increasing production and reducing consumption, has high use value and good application prospects.

[0059] The above embodiments are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A filter for dusty oil and gas, characterized in that: The invention comprises a cylinder (8), the top of which is connected to a top cover (1); a first bypass port (2) is provided on the top cover (1), a second bypass port (6) is provided on the cylinder (8), the first bypass port (2) and the second bypass port (6) are connected via a pipeline to form an external passage; a bypass valve (4) is provided on the pipeline between the first bypass port (2) and the second bypass port (6); a plurality of filter elements (11) are provided in the cylinder (8); a first heat supply component is provided on the outer wall of the cylinder (8); a cone (23) is connected to the bottom of the cylinder (8); and a second heat supply component is provided on the outer wall of the cone (23).

2. The filter for dusty oil and gas according to claim 1, characterized in that: The first heat supply component comprises a first jacket (9); the first jacket (9) surrounds the outer wall of the cylinder (8), so that a first heat supply cavity is formed between the cylinder (8) and the first jacket (9); a first heat medium inlet (12) is provided below the first heat supply cavity; a first heat medium outlet (25) is provided above the first heat supply cavity; when in use, heat medium is introduced into the first heat supply cavity through the first heat medium inlet (12), and the heat medium flows in the first heat supply cavity through the first heat medium inlet (12) and the first heat medium outlet (25), so that the oil and gas temperature inside the cylinder (8) is controlled to be 95% to 105% of the rated temperature.

3. The filter for dusty oil and gas according to claim 2, characterized in that: A spiral baffle (10) is also provided in the first heating cavity, and the spiral baffle (10) is fixed on the cylinder (8); and a plurality of expansion joints (24) are also provided on the first jacket (9).

4. The filter for dusty oil and gas according to claim 2, characterized in that: A partition cylinder (15) is provided around the pipeline of the second bypass port (6); the partition cylinder (15) passes through the first jacket (9) and is fixedly and sealingly connected to the cylinder body (8).

5. The filter for dusty oil and gas according to claim 1, characterized in that: The second heating component comprises a second jacket (22); the second jacket (22) surrounds the outer wall of the cone (23), so that a second heating cavity is formed between the cone (23) and the second jacket (22); a second heat medium inlet (21) is provided below the second heating cavity; a second heat medium outlet (13) is provided above the second heating cavity; when in use, heat medium is introduced into the second heating cavity through the second heat medium inlet (21), and the heat medium flows in the second heating cavity through the second heat medium inlet (21) and the second heat medium outlet (13), so that the oil and gas temperature inside the cone (23) is controlled to be 95% to 105% of the rated temperature.

6. The filter for dusty oil and gas according to claim 5, characterized in that: A spiral baffle (10) is also provided in the second heating cavity, and the spiral baffle (10) is fixed on the cone (23); and a plurality of expansion joints (24) are also provided on the second jacket (22).

7. The filter for dusty oil and gas according to claim 5, characterized in that: The cone (23) is connected to an oil and gas inlet (14); a partition cylinder (15) is provided around the pipeline of the oil and gas inlet (14); the partition cylinder (15) passes through the second jacket (22) and is fixedly and sealingly connected to the cone (23).

8. The filter for dusty oil gas according to any one of claims 1 to 7, characterized in that: A flower plate (7) is provided in the cylinder (8) and is located at the upper part of the cylinder (8); the filter element (11) is detachably mounted below the flower plate (7); each filter element (11) is vertically arranged in the cylinder (8); the filter element (11) is any one of a filter bag, a filter cartridge, and a sintered filter element; the second bypass port (6) is located below the flower plate (7); A first flange (3) is provided at the bottom of the top cover (1); a second flange (5) is provided at the top of the cylinder (8); the top cover (1) and the cylinder (8) are connected via the first flange (3) and the second flange (5), and a sealing gasket is provided between the first flange (3) and the second flange (5); The top cover (1) is provided with an oil and gas outlet (29); the oil and gas outlet (29) is connected to an induced draft fan; The bottom of the cone (23) is provided with an ash discharge port (20).

9. The filter for dusty oil and gas according to claim 8, characterized in that: It also includes an arch breaker; the arch breaker is located at the bottom of the cone (23) or at the ash discharge port (20); the arch breaker is a reciprocating arch breaker or a rotary arch breaker.

10. The filter for dusty oil and gas according to claim 9, characterized in that: The reciprocating arch breaker comprises a linear motion mechanism (16), a main shaft (17) and an arch breaking element (19); the arch breaking element (19) is located inside the cone (23) and is connected to one end of the main shaft (17) entering the cone (23), and the other end of the main shaft (17) is connected to the linear motion mechanism (16); the linear motion mechanism (16) is located outside the cone (23); the arch breaking element (19) is arranged in a vertical plane intersecting with the main shaft (17), and is distributed within the vertex angle range of the cone (23); The number of the arch-breaking elements (19) is ≥ 1; The arch-breaking element (19) is any one of a round rod, a rectangular plate, a trapezoidal plate, a combination of a round rod and a rectangular plate, and a combination of a round rod and a trapezoidal plate; the linear motion mechanism (16) is one of a slider pair, a roller pair, a gear rack pair, a screw pair, a fluid pressure cylinder, a linear motor, and a Sarus linear motion mechanism; A packing seal assembly (18) is provided between the main shaft (17) and the cone (23); the packing seal assembly (18) comprises a packing box, a soft packing, a packing gland, a stud, a nut, and an anti-loosening washer.

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