A rectification column with an anti-blocking structure

Abstract

This application relates to the field of rectification equipment, and particularly to a rectification column with an anti-blocking structure, including: a tray, on which sieve holes are formed; a floating ball, arranged above the sieve holes, the diameter of the floating ball being larger than the diameter of the sieve holes, and a plurality of concave grooves being formed on the peripheral wall of the floating ball; a plurality of elastic arc plates, symmetrically fixed above the sieve holes, the upper ends of the plurality of elastic arc plates forming an open end with a diameter smaller than the diameter of the floating ball, a spacing being formed between adjacent elastic arc plates, and a gap being formed between the inner wall of the elastic arc plate and the peripheral wall of the floating ball. This application has the effect of reducing the probability of tray blockage.

Description

Technical Field

[0001] The present application relates to the field of distillation equipment, and in particular, to a distillation column with an anti-blocking structure. Background Art

[0002] As an important chemical engineering equipment, the distillation column has a wide range of applications in the fields of petroleum, chemical industry, etc. The traditional distillation column mainly adopts the structure of valve trays, and realizes the separation of materials through the opening and closing of the valves on the trays. This structure is simple and reliable, convenient for operation and maintenance, can effectively improve the separation efficiency and reduce energy consumption.

[0003] However, with the continuous expansion of industrial production scale and the continuous improvement of technical requirements, the existing valve tray type distillation column faces many challenges. The more common one is that the valve tray type distillation column may have the problem of valve tray blockage during use. For example, when some components in the material crystallize or coke on the surface of the valve, scale will be generated, which affects the movement of the valve and even causes the valve to completely fail.

[0004] To solve this problem, common solutions include regularly cleaning the trays to remove accumulated impurities; using more corrosion-resistant materials to make the valves to extend their service life. Although these methods alleviate the blockage problem of the valve trays to a certain extent, there are still certain limitations and deficiencies. Therefore, how to design an effective anti-blocking structure to ensure that the trays always maintain a good working state during long-term use has become a technical problem to be solved urgently. Summary of the Invention

[0005] In order to solve the problems in the background art and reduce the probability of tray blockage, the present application provides a distillation column with an anti-blocking structure.

[0006] The distillation column with an anti-blocking structure provided by the present application adopts the following technical solutions:

[0007] A distillation column with an anti-blocking structure, comprising:

[0008] Trays, on which sieve holes are formed;

[0009] Float balls, arranged on the upper side of the sieve holes, the diameter of the float balls is larger than the diameter of the sieve holes, and a plurality of concave lines are formed on the peripheral wall of the float balls;

[0010] A plurality of elastic arc plates, symmetrically fixed to the upper side of the sieve holes in a central symmetry manner. The upper ends of the plurality of elastic arc plates form an open end with a diameter smaller than the diameter of the float balls. There is a distance between adjacent elastic arc plates, and a gap is formed between the inner wall of the elastic arc plate and the peripheral wall of the float ball.

[0011] By adopting the above technical solution, a floating ball is placed above the sieve hole and its diameter is larger than that of the sieve hole. Under normal conditions, the floating ball can fall on the upper side of the sieve hole, thus closing the sieve hole and preventing the liquid on the tray from flowing directly through the sieve hole. During the operation process, when the gas velocity is relatively high, the floating ball is lifted up to a relatively high position, enabling the gas phase to pass through smoothly and enabling sufficient contact with the liquid phase on the tray. Moreover, due to the several concave lines on the peripheral wall of the floating ball, when the material is flowing, it can automatically push the floating ball to roll, reducing the situation of material accumulation, crystallization or coking on the surface of the floating ball. And a plurality of elastic arc plates are symmetrically fixed above the sieve hole with the upper open end formed having a diameter smaller than that of the floating ball. This not only does not prevent the normal up-and-down floating of the floating ball to achieve the function similar to a floating valve for material separation, but also can play a certain role in diverting and buffering the material during the material flow process, avoiding the concentrated accumulation of impurities in one place. And due to the cooperation between the floating ball and the elastic arc plate, the elastic arc plate can continuously vibrate during the rolling process of the floating ball, thereby effectively reducing the probability of tray blockage and ensuring that the tray can maintain a good working state during long-term use.

[0012] Optionally, a floating bead is embedded on one side of the elastic arc plate that can abut against the floating ball.

[0013] By adopting the above technical solution, a floating bead is embedded on one side of the elastic arc plate that can abut against the floating ball. When the floating ball contacts the elastic arc plate, the floating bead can reduce the friction between the two, enabling the floating ball to roll more smoothly when the gas velocity changes, thereby further reducing the accumulation and crystallization of materials on the surface of the floating ball, enhancing the anti-blocking effect. And due to the concave lines on the surface of the floating ball, while the airflow can push the floating ball to roll, the cooperation between the floating bead and the concave lines can also drive each elastic arc plate to continuously vibrate, further reducing the possibility of impurities adhering and accumulating on the surface of the floating ball or the elastic arc plate due to factors such as friction, and thus better reducing the probability of tray blockage and ensuring the stable operation of the rectification column.

[0014] Optionally, it further includes:

[0015] A shaping ring, fixed to the open ends of a plurality of elastic arc plates.

[0016] By adopting the above technical solution, setting the shaping ring fixed to the open ends of a plurality of elastic arc plates can stabilize the upper ends of the elastic arc plates, enabling the elastic arc plates to still maintain a relatively stable shape and position under the long-term impact of materials and the action of the floating ball, preventing the elastic arc plates from deforming, shifting, etc., which may affect the cooperation with the floating ball and the function of diverting the material, etc., contributing to maintaining the effectiveness of the entire anti-blocking structure, reducing the occurrence of tray blockage. At the same time, the presence of the shaping ring can also effectively guide the uniform distribution of the gas phase and the liquid phase, avoiding the occurrence of local overload phenomena, and thus better ensuring the stability and high efficiency of the rectification process.

[0017] Optionally, it further includes:

[0018] The snap ring is connected to the roots of a plurality of elastic arc plates, and the snap ring is snap-fitted and fixed in the sieve holes.

[0019] By adopting the above technical solution, the snap ring is connected to the roots of a plurality of elastic arc plates and is snap-fitted and fixed in the sieve holes. The snap-fitting method of the snap ring facilitates subsequent disassembly and maintenance, reduces the maintenance cost and time, and is convenient for timely replacement after the elastic arc plates and the floating balls are damaged.

[0020] Optionally, it further includes:

[0021] A horizontal ring, the outer diameter of which is larger than the diameter of the sieve hole, is fixed to the roots of a plurality of elastic arc plates;

[0022] An insertion ring, the outer diameter of which is the same as the diameter of the sieve hole, is integrally formed on the lower side of the horizontal ring and is used for inserting into the sieve hole;

[0023] A plurality of elastic clamping plates are symmetrically formed on the lower side of the insertion ring in a central symmetry manner, and the outer ends of each of the elastic clamping plates extend in a direction away from the axis of the insertion ring.

[0024] By adopting the above technical solution, the snap ring includes a horizontal ring, an insertion ring and a plurality of elastic clamping plates. The horizontal ring is fixed to the roots of the elastic arc plates to play a role in connection and support. The insertion ring inserted into the sieve hole can be initially positioned. After the outer ends of the plurality of elastic clamping plates extend in a direction away from the axis of the insertion ring and the insertion ring is inserted into the sieve hole, the fixation of the snap ring and the sieve plate is realized. The fixation of the elastic arc plates is reliable, and the stability of the whole anti-blocking structure is maintained.

[0025] Optionally, the elastic clamping plate is a unidirectional thermal expansion plate;

[0026] After the insertion ring is inserted into the sieve hole, the outer end of the elastic clamping plate expands due to heat and can bend upward to abut against the lower side of the tray.

[0027] By adopting the above technical solution, the elastic clamping plate is a unidirectional thermal expansion plate. After the insertion ring is inserted into the sieve hole, as the temperature rises, the outer end of the elastic clamping plate can bend upward and abut against the lower side of the tray, thereby ensuring that the snap ring is firmly fixed in the sieve hole and preventing loosening caused by vibration or other external factors. This not only improves the overall stability of the device, but also enhances the reliability of the anti-blocking structure, and further reduces the probability of tray blockage.

[0028] Optionally, a connecting ring is fixed to the roots of the plurality of elastic arc plates;

[0029] The connecting ring is coaxially rotatably connected to the snap ring.

[0030] By adopting the above technical solution, the roots of multiple elastic arc plates are fixed with connecting rings, and the connecting rings are coaxially rotatably connected to the clamping rings, so that the elastic arc plates can rotate flexibly relative to the clamping rings. When the floating ball generates forces in different directions under the impact of materials and other conditions and acts on the elastic arc plates, the elastic arc plates can adaptively rotate to adjust the angle, better buffer and disperse these forces, avoid damage to the elastic arc plates or other components and abnormal material accumulation caused by uneven stress, thereby reducing the probability of tray blockage and ensuring the normal operation of the distillation column.

[0031] Optionally, the elastic arc plates are arranged obliquely to the axis of the sieve holes, and an inclined flow channel is formed between adjacent elastic arc plates.

[0032] By adopting the above technical solution, the elastic arc plates are arranged obliquely to the axis of the sieve holes, and an inclined flow channel is formed between adjacent elastic arc plates. This design helps to guide the gas phase and liquid phase to be more evenly distributed on the entire tray, reduce the overload phenomenon in local areas, further improve the material separation effect, and at the same time effectively prevent impurities from accumulating in a certain specific position, reduce the blockage risk, and maintain the good working state of the distillation column.

[0033] Optionally, a number of convex points are formed on the circumferential surface of the floating ball.

[0034] By adopting the above technical solution, a number of convex points are formed on the circumferential surface of the floating ball. When the material flows through the floating ball, the convex points can further disrupt the flow state of the material, prevent the material from smoothly adhering to the surface of the floating ball to form crystallization or coking, and at the same time can also disperse the material to a certain extent, reduce the accumulation of impurities in the floating ball and the surrounding area. In addition, the elastic arc plate in contact with the floating ball vibrates more, which can further reduce the probability of tray blockage and ensure the separation effect and normal operation of the distillation column.

[0035] Optionally, it further includes:

[0036] Auxiliary balls, located between the elastic arc plates and the floating ball, and the diameter of the auxiliary balls is smaller than the gap between the elastic arc plates and the circumferential wall of the floating ball.

[0037] By adopting the above technical solution, when the gas flow rate increases, the auxiliary balls will float up and down with the airflow, which helps to further disperse the material, reduce the local pressure concentration phenomenon, and thus avoid excessive accumulation of the material in a specific area leading to blockage. At the same time, the auxiliary balls can also continuously collide with the floating ball when the floating ball rises, increase the vibration of the floating ball, and increase the surface friction between the floating ball and the auxiliary balls, reduce the precipitation and accumulation of impurities on the circumferential wall of the floating ball, and further reduce the possibility of tray blockage.

[0038] In summary, the present application includes at least one of the following beneficial technical effects:

[0039] 1. A floating ball is placed above the sieve holes and its diameter is larger than that of the sieve holes. Under normal conditions, the floating ball can fall on the upper side of the sieve holes, thus closing the sieve holes and preventing the liquid on the tray from flowing directly through the sieve holes. During operation, when the gas velocity is relatively high, the floating ball is lifted up higher, enabling the gas phase to pass through smoothly and allowing sufficient contact with the liquid phase on the tray. Moreover, due to several concave grooves on the peripheral wall of the floating ball, when the material is flowing, it can automatically push the floating ball to roll, reducing the accumulation, crystallization or coking of the material on the surface of the floating ball. Multiple elastic arc plates are symmetrically fixed above the sieve holes with the upper open ends formed having a diameter smaller than that of the floating ball. This not only does not prevent the normal up-and-down floating of the floating ball to achieve the function similar to a floating valve for material separation, but also can play a certain role in diverting and buffering the material during the material flow process, avoiding the concentrated accumulation of impurities in one place. And due to the cooperation between the floating ball and the elastic arc plates, the elastic arc plates can continuously vibrate during the rolling process of the floating ball, thereby effectively reducing the probability of tray blockage and ensuring that the tray can maintain a good working state during long-term use;

[0040] 2. A floating bead is embedded on one side of the elastic arc plate that can contact the floating ball. When the floating ball contacts the elastic arc plate, the floating bead can reduce the friction between the two, enabling the floating ball to roll more smoothly when the gas velocity changes, thus further reducing the accumulation and crystallization of the material on the surface of the floating ball and enhancing the anti-blocking effect. And due to the concave grooves on the surface of the floating ball, while the airflow can push the floating ball to roll, the cooperation between the floating bead and the concave grooves can drive each elastic arc plate to continuously vibrate, further reducing the possibility of impurities adhering and accumulating on the surface of the floating ball or the elastic arc plate due to factors such as friction, and thus better reducing the probability of tray blockage and ensuring the stable operation of the distillation column;

[0041] 3. A shaping ring is fixed to the open ends of multiple elastic arc plates, which can stabilize the upper ends of the elastic arc plates, enabling the elastic arc plates to still maintain a relatively stable shape and position under the long-term impact of the material and the action of the floating ball, preventing the elastic arc plates from deforming, shifting, etc., which may affect the cooperation with the floating ball and the material diversion, etc., helping to maintain the effectiveness of the entire anti-blocking structure and reducing the occurrence of tray blockage. At the same time, the presence of the shaping ring can also effectively guide the uniform distribution of the gas phase and the liquid phase, avoiding the occurrence of local overload phenomena, and thus better ensuring the stability and efficiency of the distillation process. Description of the Drawings

[0042] Figure 1 is a schematic cross-sectional view of the distillation column in Embodiment 1 of the present application;

[0043] Figure 2 is a schematic structural view of the tray in Embodiment 1 of the present application;

[0044] Figure 3 is a schematic structural view of the floating ball in Embodiment 1 of the present application;

[0045] Figure 4 It is a schematic structural diagram of the auxiliary ball in Embodiment 1 of the present application;

[0046] Figure 5 It is a schematic structural diagram of the qualitative ring in Embodiment 1 of the present application;

[0047] Figure 6 It is a schematic structural diagram of the snap ring in Embodiment 2 of the present application;

[0048] Figure 7 It is an exploded view showing the connection ring in Embodiment 3 of the present application;

[0049] Figure 8 It is an exploded view showing the elastic arc plate in Embodiment 3 of the present application.

[0050] Explanation of reference numerals: 1, tower body;

[0051] 2, tray; 21, liquid receiving tank; 22, downcomer; 23, sieve hole; 24, overflow weir;

[0052] 3, floating ball; 31, concave pattern;

[0053] 4, elastic arc plate; 41, floating bead; 42, shaping ring; 43, connecting ring;

[0054] 5, auxiliary ball;

[0055] 6, snap ring; 61, horizontal ring; 62, insertion ring; 63, elastic clamping plate. Detailed implementation manners

[0056] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings. The described embodiments are only possible technical implementations of the present invention, not all possible implementations. Those skilled in the art can completely combine the embodiments of the present invention to obtain other embodiments without creative labor, and these embodiments are also within the protection scope of the present invention.

[0057] The inventors of the present application found that the tray type distillation column may have the problem of tray blockage during use. Therefore, the present application mainly adopts a distillation column with an anti-blocking structure, achieving the purpose of reducing the probability of tray blockage and ensuring that the tray is always in a good working state during long-term use. The following is a further detailed description of the present application.

[0058] Embodiment 1

[0059] Refer to Figure 1 and Figure 2, A rectifying column with an anti-blocking structure, including a column body 1, and a plurality of trays 2 are arranged vertically inside the column body 1. On one side and upper part of the tray 2, a liquid receiving tank 21 is formed. On the other side and lower part of the tray 2, a downcomer 22 is vertically formed. A number of sieve holes 23 are vertically opened at the position of the tray 2 corresponding to between the liquid receiving tank 21 and the downcomer 22. And an overflow weir 24 protruding above the upper side of the tray 2 is fixed between the sieve holes 23 of the tray 2 and the downcomer 22. When a plurality of trays 2 are arranged, the downcomer 22 of the upper tray 2 corresponds to the position of the liquid receiving tank 21 of the lower tray 2.

[0060] The design of the tray 2 enables the rising steam and the descending liquid to fully contact on the tray 2, promoting the mass transfer process between the gas phase and the liquid phase, that is, the lighter components are transferred from the liquid phase to the gas phase, and the heavier components are transferred back from the gas phase to the liquid phase. And components such as the overflow weir 24 and the downcomer 22 can be used to guide the flow direction of the liquid, ensuring that the liquid can flow from one tray 2 to the next tray 2 without falling directly, and ensuring that each tray 2 can participate in an effective separation process.

[0061] Refer to Figure 3 , Rigid floating balls 3 are arranged on the upper sides of the sieve holes 23 corresponding to the tray 2. The surface of the floating balls 3 can be coated with corrosion-resistant coatings, anti-static coatings, etc., or can be directly made of corrosion-resistant materials. The diameter of the floating balls 3 is larger than the diameter of the sieve holes 23. And a number of concave grooves 31 are formed on the peripheral wall of the floating balls 3. The shape of the concave grooves 31 is not limited. In this embodiment, the concave grooves 31 are preferably irregular patterns. A plurality of elastic arc plates 4 are fixed on the upper sides of the sieve holes 23 corresponding to the tray 2. The elastic arc plates 4 are made of stainless steel plates. The plurality of elastic arc plates 4 are arranged around the sieve holes 23 in central symmetry and form an inverted bowl-shaped structure, and a spacing is formed between adjacent elastic arc plates 4. The floating balls 3 are located between the plurality of elastic arc plates 4. The diameter of the open end formed by the upper ends of the plurality of elastic arc plates 4 is smaller than the diameter of the floating balls 3. And a gap is formed between the inner wall of the elastic arc plates 4 and the floating balls 3. A floating bead 41 is also embedded in the inner side of the upper end of the elastic arc plates 4. When the floating balls 3 rise to open the sieve holes 23, the peripheral wall of the floating balls 3 can abut against the floating beads 41.

[0062] By placing the floating balls 3 on the upper sides of the sieve holes 23 and their diameter being larger than the diameter of the sieve holes 23, the floating balls 3 can normally fall on the upper sides of the sieve holes 23, thus closing the sieve holes 23 and preventing the liquid on the tray 2 from flowing directly through the sieve holes 23. During the operation process, when the gas velocity is relatively large, the floating balls 3 are lifted up higher, enabling the gas phase to pass through smoothly and enabling it to fully contact with the liquid phase on the tray 2. And due to the number of concave grooves 31 on the peripheral wall of the floating balls 3, when the material flows, the floating balls 3 can be automatically pushed to roll, reducing the situation of material accumulation, crystallization or coking on the surface of the floating balls 3.

[0063] A plurality of elastic arc plates 4 are symmetrically fixed above the sieve holes 23 in a central symmetry manner, and the diameter of the open end formed at the upper end is smaller than the diameter of the floating ball 3. This not only does not prevent the normal up-and-down floating of the floating ball 3 to achieve the function similar to a floating valve for material separation, but also can play a certain role in diverting and buffering the material during the material flow process, avoiding the concentrated accumulation of impurities in one place. Moreover, due to the continuous contact between the floating ball 3 and the elastic arc plate 4, the elastic arc plate 4 can continuously vibrate during the rolling process of the floating ball 3, reducing the possibility of scaling on the elastic arc plate 4.

[0064] In addition, when the floating ball 3 rises to abut against the floating bead 41, the floating bead 41 can reduce the frictional force between the two, enabling the floating ball 3 to roll more smoothly when the gas phase flow rate changes. Moreover, the cooperation between the floating bead 41 and the concave pattern 31 can drive each elastic arc plate 4 to continuously strengthen the vibration of the rolling of the floating ball 3, further reducing the possibility of impurities adhering and accumulating on the surface of the floating ball 3 or the elastic arc plate 4 due to factors such as friction, thereby better reducing the blockage probability of the tray 2 and ensuring the stable operation of the distillation column.

[0065] Furthermore, a number of convex points (not shown in the figure) are formed on the circumferential surface of the floating ball 3. When the material flows through the floating ball 3, the convex points can further disrupt the flow state of the material, preventing the material from smoothly adhering to the surface of the floating ball 3 to form crystallization or coking. At the same time, it can also play a role in dispersing the material to a certain extent, reducing the accumulation of impurities in the floating ball 3 and its surrounding areas. In addition, the vibration of the elastic arc plate 4 in contact with the floating ball 3 is greater, which can further reduce the blockage probability of the tray 2 and ensure the separation effect and normal operation of the distillation column.

[0066] Refer to Figure 4 In a further implementation manner of this embodiment, a auxiliary ball 5 can be further arranged between the elastic arc plate 4 and the floating ball 3. The diameter of the auxiliary ball 5 is smaller than the gap between the elastic arc plate 4 and the circumferential wall of the floating ball 3. The auxiliary ball 5 can be made of the same material as the floating ball 3 and can have the same shape as the floating ball 3. When the gas phase flow rate increases, the auxiliary ball 5 will float up and down with the airflow, which helps to further disperse the material and reduce the phenomenon of local pressure concentration, thereby avoiding the excessive accumulation of materials in a specific area and causing blockage. At the same time, the auxiliary ball 5 can also continuously collide with the floating ball 3 when the floating ball 3 rises, increasing the vibration of the floating ball 3 and increasing the surface friction between the floating ball 3 and the auxiliary ball 5, reducing the precipitation and accumulation of impurities on the circumferential wall of the floating ball 3, and thus reducing the possibility of blockage of the tray 2.

[0067] Refer to Figure 5, Further, a shaping ring 42 is also fixed to the open ends of the multiple elastic arc plates 4. Setting the shaping ring 42 fixed to the open ends of the multiple elastic arc plates 4 can stabilize the upper ends of the elastic arc plates 4, so that the elastic arc plates 4 can still maintain a relatively stable shape and position under the long-term impact of materials and the action of the floating balls 3, preventing the elastic arc plates 4 from deforming, shifting, etc., which may affect the cooperation with the floating balls 3 and the material diversion, etc., contributing to maintaining the effectiveness of the entire anti-blocking structure, reducing the occurrence of blockage of the tray 2. At the same time, the presence of the shaping ring 42 can also effectively guide the uniform distribution of the gas phase and the liquid phase, avoiding the occurrence of local overload phenomena, thereby better ensuring the stability and efficiency of the rectification process.

[0068] The implementation principle of a rectification column with an anti-blocking structure in an embodiment of the present application is as follows:

[0069] By using the floating ball 3 placed above the sieve hole 23 and having a diameter larger than that of the sieve hole 23, the floating ball 3 can normally fall above the sieve hole 23 under normal conditions, thereby closing the sieve hole 23 and preventing the liquid on the tray 2 from flowing directly through the sieve hole 23. During the operation process, when the gas velocity is relatively high, the floating ball 3 is lifted to a relatively high position, enabling the gas phase to pass through smoothly and fully contact the liquid phase on the tray 2. Moreover, due to the several concave lines 31 on the peripheral wall of the floating ball 3, it can automatically push and roll during the material flow, reducing the situation of material accumulation, crystallization or coking on the surface of the floating ball 3; and the multiple elastic arc plates 4 are symmetrically fixed above the sieve hole 23 with the open ends formed at the upper ends having a diameter smaller than that of the floating ball 3, which neither hinders the normal up and down floating of the floating ball 3 to achieve the function of a floating valve for material separation, nor can play a certain role in diverting and buffering the material during the material flow process, avoiding the concentrated accumulation of impurities in one place. And due to the cooperation between the floating ball 3 and the elastic arc plates 4, the elastic arc plates 4 can continuously vibrate during the rolling process of the floating ball 3, thereby effectively reducing the probability of blockage of the tray 2 and ensuring that the tray 2 can maintain a good working state during long-term use.

[0070] Embodiment 2

[0071] Refer to Figure 6 , A rectification column with an anti-blocking structure. Compared with Embodiment 1, the difference in this embodiment is that:

[0072] A clamping ring 6 is fixed to the root of each of the multiple elastic arc plates 4 on the sieve holes 23. The clamping ring 6 includes a horizontal ring 61, an insertion ring 62, and an elastic clamping plate 63. The outer diameter of the horizontal ring 61 is larger than the diameter of the sieve hole 23, and the roots of the multiple elastic arc plates 4 are fixed to the horizontal ring 61. The outer diameter of the insertion ring 62 is the same as the diameter of the sieve hole 23, and the insertion ring 62 is integrally formed coaxially with the lower side of the horizontal ring 61 for insertion into the sieve hole 23. The multiple elastic clamping plates 63 are symmetrically formed on the lower side of the insertion ring 62. The outer end of each elastic clamping plate 63 extends in a direction away from the axis of the insertion ring 62, forming an outwardly expanding structure. After the clamping ring 6 is clamped into the sieve hole 23, the insertion ring 62 is inserted into the sieve hole 23, the horizontal ring 61 abuts against the upper side of the tray 2, and the elastic clamping plate 63 abuts against the lower side of the tray 2, thereby restricting the clamping ring 6 from disengaging from the sieve hole 23.

[0073] The clamping ring 6 is connected to the roots of the multiple elastic arc plates 4 and is clamped and fixed in the sieve hole 23. The clamping method of the clamping ring 6 facilitates subsequent disassembly and maintenance, reduces the maintenance cost and time, and is convenient for timely replacement after the elastic arc plate 4 and the floating ball 3 are damaged.

[0074] Furthermore, the elastic clamping plate 63 is a unidirectional thermal expansion plate, that is, the elastic clamping plate 63 is formed by laminating two metal plates with different thermal expansion coefficients, so that after the elastic clamping plate 63 expands due to heat, the outer end of the elastic clamping plate 63 can bend upward to abut against the lower side of the tray 2.

[0075] In this way, by using the elastic clamping plate 63 as a unidirectional thermal expansion plate, during the operation of the rectification column, as the temperature inside the column body 1 rises, the outer end of the elastic clamping plate 63 can bend upward and abut against the lower side of the tray 2, thereby ensuring that the clamping ring 6 is firmly fixed in the sieve hole 23, preventing loosening caused by vibration or other external factors. This not only improves the overall stability of the device but also enhances the reliability of the anti-blocking structure, further reducing the probability of blockage of the tray 2.

[0076] Compared with Embodiment 1, the clamping ring 6 is connected to the roots of the multiple elastic arc plates 4 and is clamped and fixed in the sieve hole 23. The clamping method of the clamping ring 6 facilitates subsequent disassembly and maintenance, reduces the maintenance cost and time, and is convenient for timely replacement after the elastic arc plate 4 and the floating ball 3 are damaged.

[0077] Embodiment 3

[0078] Refer to Figure 7 , a rectification column with an anti-blocking structure. Compared with Embodiment 2, the difference in this embodiment is that:

[0079] A connecting ring 43 is fixed to the roots of the multiple elastic arc plates 4, and the connecting ring 43 is coaxially rotatably connected to the clamping ring 6.

[0080] Refer to Figure 8, each elastic arc plate 4 is also inclined to the axis of the sieve hole 23, and an inclined flow channel is formed between adjacent elastic arc plates 4.

[0081] Compared with Embodiment 2, the advantages of this embodiment are as follows: connection rings 43 are fixed to the roots of multiple elastic arc plates 4, and the connection rings 43 are coaxially rotatably connected to the snap ring 6, so that the elastic arc plates 4 can rotate flexibly relative to the snap ring 6. When the floating ball 3 generates forces in different directions acting on the elastic arc plates 4 under the impact of materials, etc., the elastic arc plates 4 can adaptively rotate and adjust the angle to better buffer and disperse these forces, avoiding damage to the elastic arc plates 4 or other components and abnormal material accumulation caused by uneven force.

[0082] Refer to Figure 8 , and the elastic arc plate 4 is inclined to the axis of the sieve hole 23, and an inclined flow channel is formed between adjacent elastic arc plates 4. This design helps to guide the gas phase and liquid phase to be more evenly distributed on the entire tray 2, reduce the overload phenomenon in local areas, further improve the material separation effect, effectively prevent impurities from accumulating in a certain specific position at the same time, reduce the risk of blockage, and maintain the good working state of the distillation column.

[0083] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A distillation tower with an anti-clogging structure, characterized in that: include: A tower plate (2), wherein a sieve hole (23) is formed on the tower plate (2); A floating ball (3) is arranged on the upper side of the sieve hole (23); the diameter of the floating ball (3) is larger than the diameter of the sieve hole (23); and a plurality of concave patterns (31) are formed on the peripheral wall of the floating ball (3); A plurality of elastic arc plates (4) are fixed on the upper side of the sieve hole (23) in a centrally symmetrical manner, the upper ends of the plurality of elastic arc plates (4) form an open end with a diameter smaller than the diameter of the float (3), a spacing is formed between adjacent elastic arc plates (4), and a gap is formed between the inner wall of the elastic arc plate (4) and the peripheral wall of the float (3); A floating bead (41) is embedded on one side of the elastic arc plate (4) that is capable of contacting the floating ball (3).

2. A distillation tower with an anti-clogging structure according to claim 1, characterized in that: Also includes: A shaping ring (42) is fixed to the open ends of the plurality of elastic arc plates (4).

3. A distillation tower with an anti-clogging structure according to claim 1, characterized in that: Also includes: A clamping ring (6) is connected to the roots of the plurality of elastic arc plates (4), and the clamping ring (6) is clamped and fixed in the sieve hole (23).

4. The distillation tower with an anti-clogging structure according to claim 1, characterized in that: Also includes: A horizontal ring (61) has an outer diameter greater than the diameter of the sieve hole (23) and is fixed to the root of a plurality of elastic arc plates (4); An insert ring (62) having an outer diameter the same as the diameter of the sieve hole (23), integrally formed on the lower side of the horizontal ring (61), and used for inserting into the sieve hole (23); A plurality of elastic clamping plates (63) are centrally symmetrically formed on the lower side of the insert ring (62), and the outer end of each of the elastic clamping plates (63) tends to extend away from the axis direction of the insert ring (62).

5. A distillation tower with an anti-clogging structure according to claim 4, characterized in that: The elastic clamping plate (63) is a one-way thermal expansion plate; After the insert ring (62) is inserted into the sieve hole (23), the outer end of the elastic clamping plate (63) expands due to heat and can bend upward to press against the lower side of the tower plate (2).

6. The distillation tower with an anti-clogging structure according to claim 3, characterized in that: A connecting ring (43) is fixed at the root of the plurality of elastic arc plates (4); The connecting ring (43) is coaxially rotatably connected to the clamping ring (6).

7. The distillation tower with an anti-clogging structure according to claim 1, characterized in that: The elastic arc plates (4) are arranged obliquely to the axis of the sieve holes (23), and obliquely arranged flow channels are formed between adjacent elastic arc plates (4).

8. The distillation tower with an anti-clogging structure according to claim 1, characterized in that: The circumferential surface of the floating ball (3) is formed with a plurality of convex points.

9. The distillation tower with an anti-clogging structure according to claim 1, characterized in that: Also includes: The auxiliary ball (5) is located between the elastic arc plate (4) and the floating ball (3), and the diameter of the auxiliary ball (5) is smaller than the gap between the elastic arc plate (4) and the peripheral wall of the floating ball (3).

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