Heating type anti-fouling fatty acid trap
The design of the heated anti-fouling fatty acid trap solves the problem of fouling in traditional traps, improves trapping efficiency and equipment lifespan, reduces cleaning and maintenance costs, and is suitable for deodorization processes in oil processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RUNKE BIOENG FUJIAN
- Filing Date
- 2025-05-09
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional fatty acid traps are prone to scale buildup during condensation, which leads to reduced heat transfer efficiency, increased gas flow resistance, and complicated and costly cleaning, especially under high-viscosity fatty acid or low-temperature conditions, thus affecting production efficiency.
The heated fatty acid trap is designed to prevent scale buildup. Through the coordinated design of the heated packing layer, spray mechanism and temperature controller, the temperature of the heated packing layer is maintained above the freezing point of fatty acids and below the boiling point, so as to achieve effective condensation of fatty acids and prevent scale buildup. During cleaning, the scale is softened by heating to facilitate removal.
It improves the capture efficiency of fatty acids, simplifies the cleaning process, reduces maintenance costs, and is suitable for deodorization processes in the oil processing industry.
Smart Images
Figure CN224207430U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil processing equipment technology, and in particular to a heated fatty acid trap that prevents scale buildup. Background Technology
[0002] In the deodorization process of oil refining, high-temperature steam carries a large amount of fatty acid vapor into the trap, which needs to be converted into liquid through condensation technology to capture the fatty acids. However, traditional traps have significant technical bottlenecks in actual operation. First, during the condensation process, fatty acid vapor is prone to solidification due to cooling, and it adheres to the surface of the packing layer, forming scale, especially on the packing surface and the inner wall of the condenser tube. The accumulation of scale not only significantly reduces heat transfer efficiency, leading to a gradual decline in capture efficiency, but also increases gas flow resistance and affects the stability of the vacuum system. Second, the cleaning process of traditional traps is complex and costly, requiring regular disassembly and cleaning with high-pressure water guns or chemical solvents, which is not only time-consuming and labor-intensive, but also increases environmental risks due to the treatment of chemical waste. Especially under high-viscosity fatty acids or low-temperature conditions, the scale buildup is more severe, seriously restricting production efficiency. With the increasing requirements of the food industry for energy efficiency, environmental protection, and automation, there is an urgent need for a new type of trap that can actively regulate temperature and inhibit scale formation during the capture stage while maintaining efficient mass transfer. Utility Model Content
[0003] The problem to be solved by this utility model is to provide a heated anti-fouling fatty acid trap that can improve the fatty acid trapping efficiency, improve anti-fouling performance, and reduce cleaning and maintenance costs.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0005] A heated, scale-resistant fatty acid trap is characterized by comprising a trap shell, a fatty acid storage tank, a circulating pump, a temperature controller, at least one spray mechanism, and at least one heated packing layer. The number of spray mechanisms and heated packing layers are the same and correspond one-to-one. A mixed gas inlet is provided on the side wall of the trap shell, a tail gas outlet is provided at the top of the trap shell, and a fatty acid collection port is provided at the bottom of the trap shell. The tail gas outlet, fatty acid collection port, and mixed gas inlet are connected to the inner cavity of the trap shell. The spray mechanism and heated packing layer are both located in the middle of the inner cavity of the trap shell. The spray mechanism has multiple nozzles. Each nozzle is positioned above and facing the corresponding heated packing layer; the fatty acid collection port is connected to the inlet of the fatty acid storage tank via a first pipe, the outlet of the fatty acid storage tank is connected to the inlet of the circulation pump via a second pipe, and the outlet of the circulation pump is connected to the spraying mechanism via a third pipe; the heated packing layer includes a packing matrix, an electric heating device capable of heating the packing matrix, and a temperature sensor capable of detecting the temperature of the packing matrix. The temperature sensor is electrically connected to the corresponding signal input terminal of the temperature controller, and the electric heating device is electrically connected to the corresponding signal output terminal of the temperature controller. The packing matrix has through-holes.
[0006] During operation, the temperature of the heating packing layer is maintained above the freezing point of fatty acids and below the boiling point of fatty acids through the cooperation of a temperature controller, electric heating device, and temperature sensor. A mixed gas containing fatty acid vapor and water vapor is then introduced into the inner cavity of the trap shell through the mixed gas inlet. The gas passes through the heating packing layer from bottom to top and exchanges heat with it. The fatty acid vapor in the mixed gas condenses into fatty acid liquid, which drips onto the bottom of the inner cavity of the trap shell. The fatty acid liquid then flows out through the fatty acid collection port through the first pipe into the fatty acid storage tank. The circulation pump is turned on, and the fatty acid liquid in the fatty acid storage tank is pumped into the spray mechanism through the second pipe, the circulation pump, and the third pipe. The spray mechanism sprays the fatty acid evenly onto the heating packing layer through various nozzles, and washes away the fatty acid adhering to the surface of the packing matrix, effectively preventing the fatty acid from forming scale on the surface of the packing matrix. The fatty acid then drips off again, forming a cycle. After condensation, a small amount of gaseous fatty acids, water vapor, and odorous substances that have not been converted into liquid are not condensed due to their low boiling point and continue to rise and are discharged from the exhaust outlet. After fatty acid capture is complete, the circulation pump is turned off, and the captured fatty acids are stored in a fatty acid temporary storage tank.
[0007] Furthermore, when cleaning is required after fatty acid capture, the heating packing layer is heated by the temperature controller to soften the fatty acid deposits adhering to the surface of the heating packing layer. At the same time, the inlet end of the second pipeline is switched to connect with the cleaning fluid storage container, and the spraying mechanism sprays the cleaning fluid after the circulation pump is turned on to spray and clean the fatty acid deposits on the surface of the heating packing layer, so that the fatty acid deposits fall off and are removed from the surface of the heating packing layer.
[0008] In a preferred embodiment, the number of spraying mechanisms is multiple (e.g., two), and the number of heated packing layers is multiple (e.g., two). Each spraying mechanism and heated packing layer is alternately arranged from top to bottom in the middle of the collector housing. By setting multiple spraying mechanisms and multiple heated packing layers, fatty acid vapor can be condensed and liquefied in multiple stages, better ensuring the full conversion of fatty acid vapor, reducing fatty acid vapor escape, and achieving high collection efficiency.
[0009] In a preferred embodiment, the spraying mechanism includes a spray pipe and multiple nozzles. One end of the spray pipe is connected to one end of the third pipe, and each nozzle is mounted on the spray pipe and communicates with the inner cavity of the spray pipe. When spraying is required, the circulation pump is turned on, and the circulation pump delivers liquid (fatty acid liquid in the fatty acid storage tank or cleaning liquid in the cleaning liquid storage container) through the third pipe and the spray pipe to each nozzle, and each nozzle sprays the heated packing layer. In a more preferred embodiment, the nozzles are arranged at equal intervals along the length of the spray pipe.
[0010] In a preferred embodiment, the packing matrix is made of corrugated packing, and the electric heating device includes multiple heating wires, each of which is mounted on the corrugated packing. More preferably, the corrugated packing is made of ceramic or stainless steel. The aforementioned corrugated packing is a conventional material, generally including perforated plate corrugated packing, wire mesh corrugated packing, or ceramic structured corrugated packing.
[0011] In a further preferred embodiment, the corrugated packing is divided into multiple zones, each zone having one of the electric heating devices and one of the temperature sensors. This zoned temperature control allows for a more uniform temperature distribution within the corrugated packing.
[0012] In a further preferred embodiment, each of the electric heating wires is welded to the corrugated packing. This welding typically employs laser welding. Welding allows for better fixation of the electric heating wires to the corrugated packing, ensuring a tight fit between the heating wires and the packing.
[0013] In a preferred embodiment, the heated anti-fouling fatty acid trap further includes a heat insulation layer that covers the outer wall of the trap housing. This design helps to keep the trap housing warm and reduce heat loss.
[0014] In a preferred embodiment, the exhaust gas outlet is connected to a vacuum pump, and the inlet of the vacuum pump is connected to the exhaust gas outlet via a fourth pipe. The vacuum pump allows the exhaust gas to be quickly discharged from the exhaust gas outlet.
[0015] Compared with the prior art, this utility model has the following advantages:
[0016] This invention improves fatty acid capture efficiency and equipment lifespan through the coordinated design of a heated packing layer, a spray mechanism, and a temperature controller. It simplifies the cleaning process, enhances anti-fouling performance, and reduces cleaning and maintenance costs. Compared to traditional steam reheating methods, this invention eliminates the need for chemical reagents and disassembly / reassembly equipment, thus reducing cleaning energy consumption. Combining the advantages of high-efficiency capture, anti-fouling, and low maintenance costs, this invention is suitable for deodorization processes in the oil processing industry and has broad application prospects and market potential. Attached Figure Description
[0017] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model. Detailed Implementation
[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0019] like Figure 1 As shown, the heated anti-fouling fatty acid trap in this embodiment includes a trap shell 1, a fatty acid storage tank 2, a circulation pump 3, a temperature controller 4, two spray mechanisms 5, and two heating packing layers 6. The number of spray mechanisms 5 and heating packing layers 6 are the same and correspond one-to-one. A mixed gas inlet 11 is provided on the side wall of the trap shell 1, a tail gas outlet 12 is provided on the top of the trap shell 1, and a fatty acid collection port 13 is provided on the bottom of the trap shell 1. The tail gas outlet 12, the fatty acid collection port 13, and the mixed gas inlet 11 are connected to the inner cavity of the trap shell 1. The spray mechanisms 5 and the heating packing layers 6 are both located in the middle of the inner cavity of the trap shell 1. The spray mechanism 5 is provided with multiple nozzles 51, and each nozzle 51... 1 is positioned above and facing the corresponding heating packing layer 6; fatty acid collection port 13 is connected to the inlet of fatty acid storage tank 2 through first pipe 7, the outlet of fatty acid storage tank 2 is connected to the inlet of circulation pump 3 through second pipe 8, and the outlet of circulation pump 3 is connected to spray mechanism 5 through third pipe 9; the heating packing layer 6 includes packing matrix 61, electric heating device 62 capable of heating packing matrix 61, and temperature sensor 63 capable of detecting the temperature of packing matrix 61. Temperature sensor 63 is electrically connected to the corresponding signal input terminal of temperature controller 4, and electric heating device 62 is electrically connected to the corresponding signal output terminal of temperature controller 4. The packing matrix 61 has vertically penetrating pores 611.
[0020] During operation, the temperature controller 4, electric heating device 62, and temperature sensor 63 work together to maintain the temperature of the heating packing layer 6 above the freezing point of fatty acids and below the boiling point of fatty acids. A mixed gas containing fatty acid vapor and water vapor is then introduced into the inner cavity of the collector housing 1 through the mixed gas inlet 11. The gas passes through the heating packing layer 6 from bottom to top, exchanging heat with it. The fatty acid vapor in the mixed gas condenses to form fatty acid liquid, which drips onto the bottom of the inner cavity of the collector housing 1. The fatty acid liquid then flows from the fatty acid collection port 13 through the first pipe 7. The fatty acid liquid is pumped into the fatty acid storage tank 2 by turning on the circulation pump 3. The liquid fatty acid is then pumped through the second pipe 8, the circulation pump 3, and the third pipe 9 into the spraying mechanism 5. The spraying mechanism 5 uses nozzles 51 to evenly spray the fatty acid onto the heated packing layer 6, washing away any fatty acid adhering to the surface of the packing matrix 61. This effectively prevents the fatty acid from forming scale on the packing matrix 61 surface. The fatty acid then drips back down, forming a circulation. Meanwhile, a small amount of unconverted gaseous fatty acid, water vapor, and odorous substances, due to their low boiling point, do not condense and continue to rise, exiting from the exhaust outlet 12. After fatty acid collection is complete, the circulation pump 3 is turned off, and the collected fatty acid is stored in the fatty acid storage tank 2.
[0021] Furthermore, when cleaning is required after fatty acid capture, the temperature controller 4 controls the heating packing layer 6 to heat up, so that the fatty acid deposits adhering to the surface of the heating packing layer 6 are softened by heating. At the same time, the inlet end of the second pipe 8 is switched to connect with the cleaning fluid storage container, and the spraying mechanism 5 sprays the cleaning fluid after the circulation pump 3 is turned on, so as to spray and clean the fatty acid deposits on the surface of the heating packing layer 6, causing the fatty acid deposits to fall off and be removed from the surface of the heating packing layer 6.
[0022] There are two spraying mechanisms 5 and two heating packing layers 6, which are alternately arranged from top to bottom in the middle of the collector housing 1. By setting multiple spraying mechanisms 5 and multiple heating packing layers 6, fatty acid vapor can be condensed and liquefied in multiple stages, which better ensures the full conversion of fatty acid vapor, reduces fatty acid vapor escape, and achieves high collection efficiency.
[0023] The spraying mechanism 5 includes a spray pipe 52 and a plurality of nozzles 51. One end of the spray pipe 52 is connected to one end of the third pipe 9, and each nozzle 51 is mounted on the spray pipe 52 and communicates with the inner cavity of the spray pipe 52. When spraying is required, the circulation pump 3 is turned on, and the circulation pump 3 delivers liquid (fatty acid liquid in the fatty acid storage tank 2 or cleaning liquid in the cleaning liquid storage container) through the third pipe 9 and the spray pipe 52 to each nozzle 51, and each nozzle 51 sprays the heated packing layer 6. In a more preferred embodiment, each nozzle 51 is arranged at equal intervals along the length direction of the spray pipe 52.
[0024] The packing matrix 61 is made of corrugated packing 612, and the electric heating device 62 includes a plurality of electric heating wires 621, each of which is mounted on the corrugated packing 612. More preferably, the corrugated packing 612 is made of stainless steel.
[0025] The corrugated packing 612 is divided into multiple zones, each zone having one of the electric heating devices 62 and one of the temperature sensors 63. This zoned temperature control makes the temperature distribution of the corrugated packing 612 more uniform.
[0026] Each of the electric heating wires 621 is welded to the corrugated packing 612. The welding is generally performed using laser welding. Welding allows for better fixation of each electric heating wire 621 to the corrugated packing 612, ensuring a tight fit between the electric heating wire 621 and the corrugated packing 612.
[0027] This heated, scale-resistant fatty acid trap also includes a heat insulation layer 10, which covers the outer wall of the trap housing 1. This design helps to keep the trap housing 1 warm and reduce heat loss.
[0028] An air pump 20 is connected to the exhaust outlet 12, and the air inlet of the air pump 20 is connected to the exhaust outlet 12 through a fourth pipe 30. The air pump 20 can quickly discharge the exhaust gas from the exhaust outlet 12.
[0029] Furthermore, it should be noted that the names of the various parts of the specific embodiments described in this specification may differ. All equivalent or simple variations made to the structure, features, and principles described in this utility model patent concept are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in these claims, they should all fall within the protection scope of this utility model.
Claims
1. A heated anti-fouling fatty acid trap, characterized in that: The device includes a trap shell, a fatty acid storage tank, a circulating pump, a temperature controller, at least one spray mechanism, and at least one heated packing layer. The number of spray mechanisms and heated packing layers are the same and correspond one-to-one. A mixed gas inlet is located on the side wall of the trap shell, a tail gas outlet is located at the top of the trap shell, and a fatty acid collection port is located at the bottom of the trap shell. The tail gas outlet, fatty acid collection port, and mixed gas inlet are connected to the inner cavity of the trap shell. The spray mechanism and heated packing layer are both located in the middle of the inner cavity of the trap shell. The spray mechanism has multiple nozzles, each nozzle being positioned in a corresponding heated position. Above the packing layer and facing the heated packing layer; the fatty acid collection port is connected to the inlet of the fatty acid storage tank through the first pipe, the outlet of the fatty acid storage tank is connected to the inlet of the circulation pump through the second pipe, and the outlet of the circulation pump is connected to the spraying mechanism through the third pipe; the heated packing layer includes a packing matrix, an electric heating device capable of heating the packing matrix, and a temperature sensor capable of detecting the temperature of the packing matrix. The temperature sensor is electrically connected to the corresponding signal input terminal of the temperature controller, and the electric heating device is electrically connected to the corresponding signal output terminal of the temperature controller. The packing matrix has through-holes.
2. The heated anti-fouling fatty acid trap as described in claim 1, characterized in that: The number of spraying mechanisms is multiple, and the number of heating packing layers is multiple. Each spraying mechanism and heating packing layer is alternately arranged from top to bottom in the middle of the collector housing.
3. The heated anti-fouling fatty acid trap as described in claim 1, characterized in that: The spraying mechanism includes a spray pipe and a plurality of nozzles. One end of the spray pipe is connected to one end of the third pipe, and each nozzle is installed on the spray pipe and communicates with the inner cavity of the spray pipe.
4. The heated anti-fouling fatty acid trap as described in claim 1, characterized in that: The packing matrix is made of corrugated packing, and the electric heating device includes multiple electric heating wires, each of which is installed on the corrugated packing.
5. The heated anti-fouling fatty acid trap as described in claim 4, characterized in that: The corrugated packing is made of ceramic or stainless steel.
6. The heated anti-fouling fatty acid trap as described in claim 4, characterized in that: The corrugated packing is divided into multiple regions, each region having one of the electric heating devices and one of the temperature sensors.
7. The heated anti-fouling fatty acid trap as described in claim 4, characterized in that: Each of the electric heating wires is welded onto the corrugated packing.
8. The heated anti-fouling fatty acid trap as described in claim 1, characterized in that: It also includes a heat insulation layer, which covers the outer wall of the trap housing.
9. The heated anti-fouling fatty acid trap as described in claim 1, characterized in that: The exhaust outlet is connected to a vacuum pump, and the inlet of the vacuum pump is connected to the exhaust outlet through a fourth pipe.