Gas-liquid distributor

Abstract

The invention discloses a gas-liquid distributor used for being arranged in a filler cylinder, and relates to the technical field of chemical separation. The gas-liquid distributor comprises a body and a liquid containing structure, wherein the body is mounted in a filler cylinder; the liquid containing structure is arranged on the body; the liquid containing structure comprises a liquid containing cavity and at least two liquid separation through holes, and the liquid containing cavity can be used for containing reaction liquid; the at least two liquid separation through holes are evenly formed in the liquid containing structure so that the liquid containing cavity can communicate with the outer side of the liquid containing structure. By applying the gas-liquid distributor disclosed by the invention, the problem of non-uniform distribution of the reaction liquid in the filler cylinder can be solved.

Description

Technical Field

[0001] The present application relates to but is not limited to the field of chemical separation technology, and in particular to a gas-liquid distributor. Background Art

[0002] The distillation tower is an important equipment in the chemical industry and isotope separation industry. The uneven distribution of the reaction liquid in the distillation tower will have a great impact on the performance of the distillation tower.

[0003] In the related art, as the size of the distillation tower increases, the problem of reduced mass transfer efficiency caused by uneven distribution of the reaction liquid in the tower becomes more prominent. The larger the tower diameter, the smaller the effective wetted area in the packing layer, and the more bias flow and channeling phenomena. Summary of the invention

[0004] The gas-liquid distributor provided in the present application can solve the problem of uneven distribution of reaction liquid in the filling cylinder.

[0005] The present application provides a gas-liquid distributor, which is used to be arranged in a packing cylinder. The gas-liquid distributor includes a body and a liquid holding structure, wherein the body is installed in the packing cylinder; the liquid holding structure is arranged in the body; the liquid holding structure includes a liquid holding cavity and at least two liquid separation through holes, wherein the liquid holding cavity can be used to accommodate a reaction liquid; and at least two liquid separation through holes are evenly arranged in the liquid holding structure to connect the liquid holding cavity with the outside of the liquid holding structure.

[0006] The gas-liquid distributor provided by the present application has a liquid holding structure arranged on the main body, and the gas-liquid distributor is installed in the packing tube through the main body, that is, the liquid holding structure is arranged in the packing tube through the main body. When the reaction liquid flows through the packing tube, it can flow into the liquid holding cavity of the liquid holding structure, and the liquid holding cavity of the liquid holding structure can be used to accommodate the reaction liquid. Since the liquid holding structure includes at least two evenly arranged liquid separation through holes, the liquid holding through holes connect the liquid holding cavity and the outside of the liquid holding structure, and therefore, the reaction liquid contained in the liquid holding cavity can flow out of the liquid holding cavity through at least two reaction through holes, that is, the reaction liquid in the liquid holding cavity is evenly distributed into at least two outflow ports. With such a structure, the reaction liquid with bias flow and channel flow phenomenon can be collected into the liquid holding cavity of the liquid holding structure, and then evenly redistributed through the liquid separation through holes, thereby solving the problem of uneven distribution of the reaction liquid in the packing tube.

[0007] In a possible implementation of the present application, the gas-liquid distributor also includes at least two liquid separating devices corresponding one to the liquid separating holes, and at least part of the liquid separating device is arranged in the liquid separating hole; the liquid separating device includes a liquid separating flow channel, and the reaction liquid can flow out of the liquid holding chamber through the liquid separating flow channel; wherein the liquid inlet sides of at least two liquid separating devices are arranged on the same horizontal plane.

[0008] In a possible implementation of the present application, the liquid separating device is movably disposed in the liquid separating through hole, and the liquid separating device moves relative to the liquid separating through hole to change the space occupied by the liquid inlet side of the liquid separating device in the liquid holding chamber to make up for the assembly level difference of the gas-liquid distributor.

[0009] In a possible implementation of the present application, the liquid separation device is threadedly connected to the liquid separation through hole.

[0010] In a possible implementation of the present application, there are multiple liquid separation through holes, and the multiple liquid separation through holes are evenly distributed on the same side of the liquid holding structure, and the liquid separation through holes penetrate the liquid holding structure along the direction of the main body axis.

[0011] In a possible implementation of the present application, the main body includes a gas-liquid flow structure, which is connected to one end of the liquid holding structure away from the liquid separation hole; the gas-liquid flow structure includes a flow cavity, which is connected to the liquid holding cavity along the axis of the main body.

[0012] In a possible implementation of the present application, the gas-liquid flow structure also includes at least one gas flow hole, which is arranged in the circumference of the gas-liquid flow structure and is used to connect the flow cavity with the outside of the gas-liquid flow structure; when there are multiple gas flow holes, the multiple gas flow holes are evenly arranged along the circumference of the main body.

[0013] In a possible implementation of the present application, the main body also includes a fixed structure, which is connected to one end of the gas-liquid flow structure away from the liquid containing structure. The fixed structure is used to fix the gas-liquid distributor to the filling tube, and the fixed structure fits the inner wall of the filling tube.

[0014] In a possible implementation of the present application, the radial dimension of the gas-liquid flow structure is smaller than the radial dimension of the fixed structure, and the radial dimension of the liquid holding structure is smaller than the radial dimension of the gas-liquid flow structure.

[0015] In a possible implementation of the present application, the fixed structure includes a liquid collecting channel extending through the body axis, the liquid collecting channel is connected to the flow cavity, and the radial dimension of the liquid collecting channel gradually decreases in the direction toward the flow cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 One of the structural schematic diagrams of the gas-liquid distributor and the filling cylinder assembly provided in the embodiment of the present application;

[0017] Figure 2 Provided for the embodiments of this application Figure 1 Cutaway view from medium AA perspective;

[0018] Figure 3 A schematic diagram of the structure of a gas-liquid distributor provided in an embodiment of the present application;

[0019] Figure 4 Provided in the embodiments of this application Figure 3 Cutaway view from the middle BB perspective;

[0020] Figure 5 A bottom view of the gas-liquid distributor provided in an embodiment of the present application.

[0021] Reference numerals:

[0022] 1-main body; 11-gas-liquid flow structure; 111-flow cavity; 112-gas flow hole; 12-fixing structure; 121-liquid collecting channel; 122-positioning end; 2-filling cylinder; 3-liquid holding structure; 31-liquid separation hole; 32-liquid holding cavity; 4-liquid separation device; 41-liquid separation flow channel; 5-pressure ring; Y-axis direction of the main body. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the specific technical solution of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0024] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more.

[0025] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the changes in the orientation of the components in the drawings.

[0026] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0027] In the embodiments of the present application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0028] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0029] Distillation towers are important equipment in the chemical industry and isotope separation industry. Distillation towers use the different volatilities of the components in the mixture, that is, the different vapor pressures of the components at the same temperature. Through countercurrent contact between the gas and liquid phases, the light components (low-boiling substances) in the liquid phase are transferred to the gas phase, while the heavy components (high-boiling substances) in the gas phase are transferred to the liquid phase, thereby achieving effective separation of the components in the mixture. Uneven distribution of the reaction liquid in the distillation tower will have a great impact on the performance of the distillation tower.

[0030] The packed tower is usually a vertical cylinder with a packing support plate at the bottom. The packing is placed on the support plate in a random or neat manner. In the packed tower, the gas is fed from the bottom of the tower and continuously passes through the gaps in the packing layer in a countercurrent with the liquid sprayed from the top of the tower through the liquid distributor. The packing layer is the basic component for gas-liquid two-phase contact and mass transfer. The liquid flows from top to bottom in a film-like manner on the surface of the packing, and the gas flows from bottom to top in a continuous phase with the liquid.

[0031] In the related art, as the size of the packed tower increases, the problem of reduced mass transfer efficiency caused by uneven distribution of the reaction liquid in the tower becomes more prominent. The larger the tower diameter, the greater the loss. Large-scale packed towers make it more difficult for the packing to convert poor distribution such as bias flow and channel flow into natural flow distribution. The effective wetting area in the packing layer decreases, and the bias flow and channel flow phenomena increase. Even if the packing is good, it is difficult to obtain a satisfactory separation effect.

[0032] Reference Figure 1 , Figure 2 and Figure 5The embodiment of the present application provides a gas-liquid distributor, which is used to be arranged in a filling tube 2. The gas-liquid distributor includes a body 1 and a liquid holding structure 3, the body 1 is installed in the filling tube 2; the liquid holding structure 3 is arranged in the body 1; the liquid holding structure 3 includes a liquid holding cavity 32 and at least two liquid separation through holes 31, the liquid holding cavity 32 can be used to accommodate the reaction liquid; at least two liquid separation through holes 31 are evenly arranged in the liquid holding structure 3 to connect the liquid holding cavity 32 with the outside of the liquid holding structure 3.

[0033] In the embodiment of the present application, the liquid holding structure 3 includes a liquid holding chamber 32, and the liquid holding chamber 32 is used to collect the liquid condensed from the upper tower section, and the upper tower section refers to the packed tower of the previous section. The liquid holding structure 3 is configured to allow the reaction liquid in the upper tower section to flow into the liquid holding chamber 32. For example, along the axis of the packed tower, the liquid holding structure 3 is provided with an opening on one side close to the upper tower section, and the reaction liquid of the upper tower section can flow into the liquid holding chamber 32 from the opening. The liquid holding structure 3 can also be provided with a channel connected to the upper tower section so that the reaction liquid can flow into the containing chamber, which is not limited in the present application.

[0034] In the embodiment of the present application, the liquid separation hole 31 connects the liquid holding chamber 32 and the outside of the liquid holding structure 3. The outside of the liquid holding structure 3 can be understood as the side where the liquid holding structure 3 contacts the packing in the packing tower. The reaction liquid in the liquid holding chamber 32 can flow out of the liquid holding chamber 32 through the liquid separation hole 31, and then flow into the gaps of the packing in the packing tower.

[0035] In the embodiment of the present application, the reaction liquid in the liquid holding chamber 32 flows out from the liquid separation through hole 31, which can be understood as the redistribution of the reaction liquid. When the reaction liquid is redistributed, at least two liquid separation through holes 31 are required. In addition, the number of liquid separation through holes 31 can be adjusted according to demand. In order to make the reaction liquid distributed by the liquid separation through hole 31 more uniform, multiple reaction through holes can be evenly arranged in the liquid holding structure 3. The shape and aperture of the liquid separation through hole 31 can be adjusted according to demand, and this application does not limit this.

[0036] In the embodiment of the present application, the liquid holding structure 3 is arranged on the body 1, and the liquid holding structure 3 and the body 1 can be integrally formed, or connected by welding, flange connection, etc. The gas-liquid distributor can be made of austenitic stainless steel.

[0037] In the gas-liquid distributor of the embodiment of the present application, the liquid holding structure 3 is arranged on the body 1, and the gas-liquid distributor is installed in the packing tube 2 through the body 1, that is, the liquid holding structure 3 is arranged in the packing tube 2 through the body 1. When the reaction liquid flows through the packing tube 2, it can flow into the liquid holding cavity 32 of the liquid holding structure 3, and the liquid holding cavity 32 of the liquid holding structure 3 can be used to accommodate the reaction liquid. Since the liquid holding structure 3 includes at least two evenly arranged liquid separation through holes 31, the liquid holding through holes connect the liquid holding cavity 32 and the outer side of the liquid holding structure 3, therefore, the reaction liquid contained in the liquid holding cavity 32 can flow out of the liquid holding cavity 32 through at least two reaction through holes, that is, the reaction liquid in the liquid holding cavity 32 is evenly distributed into at least two outflow ports. With such a structure, the reaction liquid with bias flow and channel flow phenomenon can be collected into the liquid holding cavity 32 of the liquid holding structure 3, and then redistributed evenly through the liquid separation through holes 31, thereby solving the problem of uneven distribution of the reaction liquid in the packing tube 2.

[0038] Reference Figure 3 , Figure 4 and Figure 5 In some possible embodiments of the present application, the gas-liquid distributor also includes at least two liquid separation devices 4 corresponding to the liquid separation holes 31 one by one, and at least part of the liquid separation device 4 is arranged in the liquid separation hole 31; the liquid separation device 4 includes a liquid separation channel 41, and the reaction liquid can flow out of the liquid holding chamber 32 through the liquid separation channel 41; wherein, the liquid inlet sides of at least two liquid separation devices 4 are arranged on the same horizontal plane.

[0039] In the embodiment of the present application, the gas-liquid distributor also includes at least two liquid separation devices 4 corresponding to the liquid separation holes 31 one by one. It can be understood that a liquid separation device 4 is correspondingly arranged in each liquid separation hole 31. Since the liquid holding structure 3 includes at least two liquid separation holes 31, the gas-liquid distributor includes at least two liquid separation devices 4.

[0040] In the embodiment of the present application, the liquid separation channel 41 can be designed to be spiral, straight, folded or other shapes to meet different requirements when the reaction liquid is redistributed and optimize the flow path of the reaction liquid. The width, depth and length of the liquid separation channel 41 can be adjusted according to actual needs to meet different flow and distribution requirements.

[0041] In the embodiment of the present application, the liquid separation device 4 can be made of corrosion-resistant and high-temperature-resistant materials such as stainless steel, titanium alloy, and ceramics to adapt to different working environments and medium requirements. The selection of materials can take into account the chemical properties of the reaction liquid, the temperature range, and the long-term stability of the equipment.

[0042] In the embodiment of the present application, the liquid separation device 4 can be fixed to the liquid holding structure 3 or the body 1 by means of threaded connection, snap connection, flange connection, etc. During installation, the liquid inlet side of the liquid separation device 4 can be closely connected with the outlet of the liquid holding chamber 32 to reduce leakage of the reaction liquid.

[0043] In the embodiment of the present application, the liquid separation device 4 may further include devices such as a flow regulating valve or a throttling orifice plate to achieve precise control of the flow rate of the outflowing liquid, which helps to adjust the liquid distribution ratio and flow rate according to actual needs.

[0044] The gas-liquid distributor of the embodiment of the present application, since the liquid inlet sides of the liquid separation devices 4 are arranged on the same horizontal plane, can ensure that when the reaction liquid flows out of the liquid holding chamber 32, the liquid pressure received by each liquid separation device 4 is uniform, which helps to reduce the deviation or local overload of the liquid during the distribution process, thereby improving the uniformity and stability of liquid distribution.

[0045] In practical applications, there may be a level difference during the assembly process of the gas-liquid distributor, which may lead to uneven liquid distribution or reduced distribution accuracy. In some possible embodiments of the present application, the liquid separation device 4 is movably arranged in the liquid separation through hole 31, and the liquid separation device 4 moves relative to the liquid separation through hole 31 to change the space occupied by the liquid inlet side of the liquid separation device 4 in the liquid holding chamber 32 to make up for the assembly level difference of the gas-liquid distributor.

[0046] In the embodiment of the present application, the activity modes of the liquid dispensing device 4 may include rotation, sliding, telescopic, etc. These modes can be selected according to actual needs, and can achieve precise control of the liquid flow rate, thereby meeting the requirements of high-precision distribution and meeting different application scenarios.

[0047] In the embodiment of the present application, the liquid separation device 4 can be designed into various shapes, such as spherical, cylindrical, conical, etc., to meet different liquid separation requirements. Correspondingly, the shape of the liquid separation through hole 31 can be adjusted according to the shape of the liquid separation device 4.

[0048] In the embodiment of the present application, when there is a level difference in the assembly of the gas-liquid distributor, the liquid separating device 4, which is at a relatively low level, can be moved toward the inside of the liquid holding chamber 32 by adjusting the liquid separating device 4, thereby increasing the space occupied by the liquid separating device 4 in the liquid holding chamber 32, thereby maintaining the same horizontal line with the liquid inlet side of other distribution devices, and controlling the flow of the liquid separating device 4.

[0049] The gas-liquid distributor of the embodiment of the present application can optimize the distribution of liquid by adjusting the space occupied by the liquid inlet side of the liquid-dispensing device 4 in the liquid-holding chamber 32. For example, when there is a level difference in the assembly of the gas-liquid distributor, the liquid inlet side of the liquid-dispensing device 4 can be adjusted to the same level by adjusting the space occupied by the liquid inlet side of the liquid-dispensing device 4 in the liquid-holding chamber 32, so that each liquid-dispensing device 4 can contact an appropriate amount of liquid, thereby achieving more uniform liquid distribution and reducing the phenomenon of biased flow of the reaction liquid out of some liquid-dispensing devices 4.

[0050] In some possible embodiments of the present application, the liquid separation device 4 is threadedly connected to the liquid separation through hole 31 .

[0051] In the embodiment of the present application, a threaded hole or threaded segment matching the internal thread on the surface of the liquid separating hole 31 can be set on the outer surface of the liquid separating device 4, and the depth, diameter and thread shape of the threaded hole or threaded segment on the liquid separating device 4 should match the internal thread on the liquid separating hole 31.

[0052] In the gas-liquid distributor of the embodiment of the present application, the threaded connection can form a tight fit between the liquid separation device 4 and the liquid separation through hole 31, reducing the leakage of the reaction liquid from between the liquid separation device 4 and the liquid separation through hole 31. The threaded connection can install the liquid separation device 4 into the liquid separation through hole 31 by rotation, and adjust the position of the liquid separation device 4 relative to the liquid separation through hole 31, which is convenient for disassembly and adjustment.

[0053] In some possible embodiments of the present application, there are multiple liquid separation holes 31, and the multiple liquid separation holes 31 are evenly distributed on the same side of the liquid holding structure 3, and the liquid separation holes 31 penetrate the liquid holding structure 3 along the axis of the body 1.

[0054] In the embodiment of the present application, the same side of the liquid holding structure 3 can be understood as the side of the liquid holding structure 3 away from the upper tower section, and the extension direction of this side is parallel to the radial direction of the packing tower, so that the reaction liquid can flow out of the multiple liquid separation holes 31 in the same direction. In this way, the reaction liquid in the liquid holding chamber 32 can continue to drip from the side away from the upper tower section along the direction of the axis of the main body 1 to the next tower section.

[0055] In the embodiment of the present application, the plurality of liquid separation through holes 31 are evenly distributed on the same side of the liquid holding structure 3. In addition, the plurality of liquid separation through holes 31 can also be arranged in other ways, such as staggered arrangement or spiral arrangement, etc. These arrangements can also improve the flow characteristics of the liquid and improve the liquid separation efficiency.

[0056] In the gas-liquid distributor of the embodiment of the present application, a plurality of liquid separation through holes 31 are evenly distributed on the same side of the liquid holding structure 3, so that the liquid can flow out from the same side of the liquid holding structure 3 more evenly, thereby improving the uniformity of liquid separation.

[0057] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 In some possible embodiments of the present application, the main body 1 includes a gas-liquid flow structure 11, which is connected to one end of the liquid holding structure 3 away from the liquid separation hole 31; the gas-liquid flow structure 11 includes a flow cavity 111, and the flow cavity 111 is connected to the liquid holding cavity 32 along the axis of the main body 1.

[0058] In the embodiment of the present application, since the gas-liquid flow structure 11 is connected to the end of the liquid holding structure 3 away from the liquid separation hole 31, that is, the gas-liquid flow structure 11 is closer to the upper tower section than the liquid holding structure 3, the gas-liquid flow structure 11 can allow the reaction liquid dripping from the upper tower section to flow into the liquid holding chamber 32, and can also allow the reaction gas ascending from the lower tower section to enter the upper tower section.

[0059] In the embodiment of the present application, the gas-liquid flow structure 11 includes a flow cavity 111. The gas-liquid flow structure 11 can be set as a structure with a through hole in the middle. The area of ​​the through hole is the flow cavity 111. The flow cavity 111 is connected to the liquid holding cavity 32. One end of the gas-liquid flow structure 11 is connected to the upper tower section, and the other end is connected to the liquid holding structure 3. The reaction liquid in the upper tower section can drip from the flow cavity 111 into the liquid holding cavity 32. The reaction liquid located at the peripheral edge of the gas-liquid flow structure 11 can flow into the liquid holding cavity 32 through the inner wall of the flow cavity 111.

[0060] In this way, the flow path of the reaction liquid can be optimized. Before the reaction liquid enters the liquid holding structure 3, it flows into the liquid holding chamber 32 through the guidance of the flow chamber 111, reducing the occurrence of fluid impact and turbulence. This helps to reduce the energy loss of the fluid and improve the performance of the gas-liquid distributor.

[0061] In the embodiment of the present application, the shape and size of the flow chamber 111 are usually adjusted according to the process requirements and operating conditions. For example, the shape of the flow chamber 111 may be cylindrical, conical, rectangular, and other different shapes to adapt to different gas-liquid flow rates and separation efficiency requirements. For example, when the seasoning barrel is a cylindrical structure, the liquid holding device is also adaptively set to a cylindrical structure. In order to facilitate the connection between the flow chamber 111 and the liquid holding chamber 32, the shape of the gas-liquid flow structure 11 is set to be cylindrical, and a through hole (such as a thin-walled steel pipe) is penetrated inside along the direction of the axis of the body 1 for communicating with the liquid holding chamber 32.

[0062] The gas-liquid distributor of the embodiment of the present application enables the gas-liquid mixture to be separated to a certain extent in the flow chamber 111 before entering the liquid holding structure 3. Since the flow chamber 111 is connected to the liquid holding chamber 32 and extends along the axis of the body 1, the gas-liquid mixture is affected by gravity and inertial force during the flow process, thereby achieving preliminary gas-liquid separation. This design helps to improve the separation efficiency of the subsequent liquid holding structure 3 and the liquid separation through hole 31.

[0063] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4In some possible embodiments of the present application, the gas-liquid flow structure 11 also includes at least one gas flow hole 112, and the gas flow hole 112 is arranged in the circumference of the gas-liquid flow structure 11, and is used to connect the flow cavity 111 with the outside of the gas-liquid flow structure 11; when there are multiple gas flow holes 112, the multiple gas flow holes 112 are evenly arranged along the circumference of the main body 1.

[0064] In the embodiment of the present application, the reaction gases ascending from the lower tower section can enter the flow chamber 111 through the gas flow holes 112, and the reaction gases are further mixed and dispersed in the flow chamber 111, and continue to rise to the upper tower section, thereby achieving redistribution of the reaction gases.

[0065] In the embodiment of the present application, the number, size and position of the gas flow holes 112 can be flexibly adjusted according to actual needs. For example, when it is necessary to increase the flow of the reaction gas, the number of the gas flow holes 112 can be appropriately increased or their size can be enlarged.

[0066] In the embodiment of the present application, the shape and size of the gas flow hole 112 can be customized according to the process requirements. For example, the shape of the gas flow hole 112 can be circular, elliptical, rectangular, etc. to meet different gas flow and separation efficiency requirements.

[0067] The gas-liquid distributor of the embodiment of the present application has a plurality of evenly distributed gas flow holes 112 around the gas-liquid flow structure 11, so that the gas rising from the lower tower section can be collected into the flow cavity 111, and then evenly distributed from the flow cavity 111 to the upper tower section. Such a structure reduces the situation where the local gas concentration is too high or too low, helps to evenly distribute the reaction gas, and achieves sufficient contact and mass transfer between the reaction gas and the reaction liquid.

[0068] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 In some possible embodiments of the present application, the main body 1 also includes a fixed structure 12, which is connected to one end of the gas-liquid flow structure 11 away from the liquid containing structure 3, and the fixed structure 12 is used to fix the gas-liquid distributor to the filling tube 2, and the fixed structure 12 is in contact with the inner wall of the filling tube 2.

[0069] In the embodiment of the present application, the fixed structure 12 is used to fix the gas-liquid distributor to the filling cylinder 2. The end of the fixed structure 12 close to the upper tower section is the positioning end 122. The positioning end 122 is pressed against the sinker in the upper tower section. The other end is fixed with a pressure ring 5. The pressure ring 5 is welded to the tower section. During the installation of the fixed structure 12, the horizontality of the liquid cup should be controlled.

[0070] In the embodiment of the present application, the fixed structure 12 is connected to the end of the gas-liquid flow structure 11 away from the liquid holding structure 3, that is, the fixed structure 12 is connected to the upper tower section, followed by the gas-liquid flow structure 11 and the liquid holding structure 3. The gas-liquid flow structure 11 is between the upper tower section and the liquid holding structure 3.

[0071] In the embodiment of the present application, the fixing structure 12 is fitted with the inner wall of the packing tube 2, which can reduce the reaction gas from the fixing structure 12 and the inner wall of the packing tube 2 to the upper tower section, and can improve the performance of the gas-liquid distributor in redistributing the reaction gas. For example, the inner diameter of the upper tower section is 135 mm, and the outer diameter of the fixing structure 12 matches the inner diameter of the upper tower section.

[0072] In the gas-liquid distributor of the embodiment of the present application, the fixing structure 12 is not only used to fix the gas-liquid distributor on the packed tower section, but also used to preliminarily adjust the levelness of the gas-liquid distributor. The positioning end 122 of the fixing structure 12 is abutted against the upper tower section, so that the gas-liquid distributor can maintain a certain levelness during installation, thereby reducing the problem of uneven liquid distribution.

[0073] Reference Figure 3 and Figure 4 In some possible embodiments of the present application, the radial dimension of the gas-liquid flow structure 11 is smaller than the radial dimension of the fixed structure 12 , and the radial dimension of the liquid holding structure 3 is smaller than the radial dimension of the gas-liquid flow structure 11 .

[0074] In the embodiment of the present application, it can be understood that the size of the gas-liquid distributor tends to gradually decrease from the fixed structure 12 to the gas-liquid flow structure 11 and then to the liquid holding structure 3, so that the gas-liquid distributor can present a funnel-like shape, thereby facilitating the reaction liquid to gather in the liquid holding chamber 32, and also helping the reaction gas to converge into the flow chamber 111 and diffuse from the fixed structure 12 to the upper tower section.

[0075] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 In some possible embodiments of the present application, the fixed structure 12 includes a liquid collecting channel 121 that is arranged along the axis of the main body 1, the liquid collecting channel 121 is connected to the flow chamber 111, and the radial dimension of the liquid collecting channel 121 gradually decreases in the direction toward the flow chamber 111.

[0076] In the embodiment of the present application, the fixed structure 12 is used to install the gas-liquid distribution device into the filling tube 2. Since the gas-liquid distribution device needs to collect and redistribute the reaction liquid and the reaction gas, the fixed structure 12 is provided with a penetrating liquid collection channel 121 along the axial direction Y of the main body 1.

[0077] In the embodiment of the present application, the radial dimension of the liquid collecting channel 121 gradually decreases in the direction toward the flow chamber 111, that is, the radial dimension of the end of the liquid collecting channel 121 close to the upper tower section is larger than the radial dimension of the end of the liquid collecting channel 121 close to the flow chamber 111. With such a structure, a liquid collecting channel 121 that is convenient for the flow of the reaction liquid can be formed. The reaction liquid dripping circumferentially from the upper tower section flows into the flow chamber 111 through the inner wall of the liquid collecting channel 121, and then flows into the liquid holding chamber 32.

[0078] In addition, the reaction gas collected by the flow chamber 111 diffuses from the end with a smaller radial dimension to the end with a larger radial dimension through the upward route of the liquid collecting channel 121, which is helpful for the diffusion of the reaction gas.

[0079] The gas-liquid distributor of the embodiment of the present application is a structure in which the packed tower is connected in multiple sections, and a gas-liquid distributor is provided in each section of the packed tower. The feed pipe of the reaction gas in the packed tower of the bottom section is inserted from the gas flow hole 112 of the gas-liquid distributor, and the feed of the reaction liquid in the packed tower of the top section enters the liquid storage chamber 32 to start liquid distribution. In the gas-liquid distributors located in other tower sections, the boiling and ascending reaction gas enters the gas-liquid distributor from the outside of the gas-liquid distributor through the gas flow hole 112, continues to ascend into the packing layer and the upper tower section, and the condensed liquid is collected in the liquid storage chamber 32, and redistributed evenly to the lower tower section through the liquid separation hole 31 of the liquid separation device 4. The gas-liquid distributor of the embodiment of the present application has a compact structure, is convenient and practical to install, and can solve the problem of uneven distribution of the reaction liquid in the packing cylinder 2.

[0080] The serial numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A gas-liquid distributor, used to be arranged in a filling cylinder, characterized in that: include: A body, installed in the stuffing tube; A liquid holding structure is arranged on the main body; the liquid holding structure includes a liquid holding cavity and at least two liquid separation through holes, and the liquid holding cavity can be used to accommodate reaction liquid; at least two liquid separation through holes are evenly arranged on the liquid holding structure to connect the liquid holding cavity with the outside of the liquid holding structure.

2. The gas-liquid distributor according to claim 1, characterized in that: It also includes at least two liquid separation devices corresponding to the liquid separation through holes one by one, and at least part of the liquid separation device is arranged in the liquid separation through hole; the liquid separation device includes a liquid separation flow channel, and the reaction liquid can flow out of the liquid storage cavity through the liquid separation flow channel; Wherein, the liquid inlet sides of at least two of the liquid separation devices are arranged on the same horizontal plane.

3. The gas-liquid distributor according to claim 2, characterized in that: The liquid separation device is movably arranged in the liquid separation through hole, and the liquid separation device moves relative to the liquid separation through hole to change the space occupied by the liquid inlet side of the liquid separation device in the liquid holding chamber to make up for the assembly level difference of the gas-liquid distributor.

4. The gas-liquid distributor according to claim 2, characterized in that: The liquid separation device is threadedly connected to the liquid separation through hole.

5. The gas-liquid distributor according to claim 1, characterized in that: There are a plurality of liquid separation through holes, and the plurality of liquid separation through holes are evenly distributed and arranged on the same side of the liquid holding structure, and the liquid separation through holes penetrate the liquid holding structure along the direction of the main body axis.

6. The gas-liquid distributor according to any one of claims 1 to 5, characterized in that: The main body includes a gas-liquid flow structure, which is connected to an end of the liquid holding structure away from the liquid separation through hole; the gas-liquid flow structure includes a flow cavity, which is connected to the liquid holding cavity along the direction of the main body axis.

7. The gas-liquid distributor according to claim 6, characterized in that: The gas-liquid flow structure further comprises at least one gas flow hole, which is arranged in the circumference of the gas-liquid flow structure and is used to connect the flow cavity with the outside of the gas-liquid flow structure; In the case where there are a plurality of air flow holes, the plurality of air flow holes are evenly arranged along the circumference of the body.

8. The gas-liquid distributor according to claim 6, characterized in that: The main body also includes a fixing structure, which is connected to one end of the gas-liquid flow structure away from the liquid containing structure, and is used to fix the gas-liquid distributor to the filling tube, and the fixing structure fits the inner wall of the filling tube.

9. The gas-liquid distributor according to claim 8, characterized in that: The radial dimension of the gas-liquid flow structure is smaller than the radial dimension of the fixed structure, and the radial dimension of the liquid holding structure is smaller than the radial dimension of the gas-liquid flow structure.

10. The gas-liquid distributor according to claim 9, characterized in that: The fixing structure comprises a liquid collecting channel penetrating along the direction of the main body axis, the liquid collecting channel is communicated with the flow cavity, and the radial dimension of the liquid collecting channel gradually decreases in the direction toward the flow cavity.

Images