CN111906085A - Optimization method of cleaning effect of variable diameter carbonization tower as cleaning tower - Google Patents
Optimization method of cleaning effect of variable diameter carbonization tower as cleaning tower Download PDFInfo
- Publication number
- CN111906085A CN111906085A CN202010598374.3A CN202010598374A CN111906085A CN 111906085 A CN111906085 A CN 111906085A CN 202010598374 A CN202010598374 A CN 202010598374A CN 111906085 A CN111906085 A CN 111906085A
- Authority
- CN
- China
- Prior art keywords
- pipe
- tower
- tube
- diameter
- nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003763 carbonization Methods 0.000 title claims abstract description 41
- 238000004140 cleaning Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000000694 effects Effects 0.000 title claims abstract description 12
- 238000005457 optimization Methods 0.000 title abstract 2
- 238000009826 distribution Methods 0.000 claims abstract description 15
- 238000004364 calculation method Methods 0.000 claims description 15
- 238000010586 diagram Methods 0.000 claims description 8
- 238000004088 simulation Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000013178 mathematical model Methods 0.000 claims description 3
- 238000012805 post-processing Methods 0.000 claims description 3
- 238000011160 research Methods 0.000 claims description 3
- 238000006477 desulfuration reaction Methods 0.000 claims description 2
- 230000023556 desulfurization Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 230000037390 scarring Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000032544 Cicatrix Diseases 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 230000037387 scars Effects 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/28—Design optimisation, verification or simulation using fluid dynamics, e.g. using Navier-Stokes equations or computational fluid dynamics [CFD]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2113/00—Details relating to the application field
- G06F2113/08—Fluids
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/14—Force analysis or force optimisation, e.g. static or dynamic forces
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Fluid Mechanics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Computing Systems (AREA)
- Pure & Applied Mathematics (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- Algebra (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本发明提供一种变径碳化塔作清洗塔清洗效果优化方法，塔体中段设置中段进气装置，其出口端向上倾斜，且均朝向同一时针方向，使得中段进气呈环形涡流，大大减小了与下方螺旋向上的气流发生撞击，塔内压力分布趋于平稳。通过调节中段进气速度，得到同一塔径下随着中段进气速度的改变得出塔内流场分布的变化，为工业操作提供优化参考。The invention provides a method for optimizing the cleaning effect of a variable-diameter carbonization tower as a cleaning tower. A mid-section air inlet device is arranged in the middle section of the tower body, and its outlet ends are inclined upward and all face the same clockwise direction, so that the mid-section air intake is in the form of an annular vortex, which greatly reduces the In order to collide with the downward spiral upward airflow, the pressure distribution in the tower tends to be stable. By adjusting the air inlet velocity in the middle section, the change of the flow field distribution in the tower can be obtained with the change of the inlet air velocity in the middle section under the same tower diameter, which provides an optimization reference for industrial operation.
Description
技术领域technical field
本发明涉及碳化塔，具体涉及一种变径碳化塔作清洗塔清洗效果优化方法。The invention relates to a carbonization tower, in particular to a method for optimizing the cleaning effect of a variable diameter carbonization tower as a cleaning tower.
背景技术Background technique
在碳化塔制碱过程中，冷却小管、塔壁和水箱会逐渐形成一层厚厚的NaHco3结疤，影响气液通道和碳化液停留时间。在制碱周期结束后需要改为清洗塔，来恢复碳化塔的制碱和冷却能力。碳化塔的清洗强度与CO2浓度以及清洗气量等多方面有关系。NaHCO3结疤主要集中在冷却段，当清洗气进入塔底后，CO2被快速吸收，进入到筛板层时，体积已缩小约40％，筛孔气体喷射和液体湍流强度不足，塔圈液位高，漏液现象增多，清洗效果差。所以，在同样的清洗周期里，筛板塔需要更强的清洗强度。During the alkali production process of the carbonization tower, a thick layer of NaHco3 scarring will gradually form in the cooling tube, tower wall and water tank, which affects the gas-liquid passage and the residence time of the carbonized liquid. After the alkali production cycle is over, it needs to be changed to a cleaning tower to restore the alkali production and cooling capacity of the carbonization tower. The cleaning intensity of the carbonization tower is related to the concentration of CO2 and the amount of cleaning gas. The NaHCO3 scarring is mainly concentrated in the cooling section. When the cleaning gas enters the bottom of the tower, CO2 is rapidly absorbed. When it enters the sieve plate layer, the volume has been reduced by about 40%. The sieve gas jet and liquid turbulence intensity are insufficient, and the liquid level in the tower ring high, the leakage phenomenon increases, and the cleaning effect is poor. Therefore, in the same cleaning cycle, the sieve tray needs stronger cleaning intensity.
此外，现有碳化塔的中段进气装置存在进气不均匀，进气时气体对水箱中的换热管产生的冲击大，易使换热管局部变形等问题，极大的影响了清洗效率。In addition, the air intake device in the middle section of the existing carbonization tower has problems such as uneven air intake, and the gas has a large impact on the heat exchange tube in the water tank during intake, which is easy to locally deform the heat exchange tube, which greatly affects the cleaning efficiency. .
发明内容SUMMARY OF THE INVENTION
本发明针对现有技术的不足，提供一种变径碳化塔作清洗塔清洗效果优化方法，以解决上述问题。Aiming at the deficiencies of the prior art, the present invention provides a method for optimizing the cleaning effect of a variable-diameter carbonization tower as a cleaning tower, so as to solve the above problems.
为实现上述目的，本发明提供如下技术方案：变径碳化塔，包括，For achieving the above object, the present invention provides the following technical solutions: a variable diameter carbonization tower, including,
位于中段的塔体；The tower body in the middle section;
中段进气装置，中段进气装置与塔体同轴线设置，中段进气装置包括圆环形管，圆环形管上具有若干个延其周向均匀分布的出气口，圆环形管由若干段弧形管构成，弧形管两端封闭，弧形管中部径向向外设置有进气口，弧形管径向向内具有两个出气口，两个出气口对称设置在进气口的两侧；The air inlet device in the middle section is arranged coaxially with the tower body. The air inlet device in the middle section includes a circular ring-shaped pipe. It is composed of several arc-shaped tubes. Both ends of the arc-shaped tube are closed. The middle of the arc-shaped tube is provided with an air inlet radially outward. The arc-shaped tube has two air outlets radially inward. both sides of the mouth;
喷流管，喷流管为直角弯管，喷流管固定安装在塔体上，喷流管与进气口之间通过分流管连接，喷流管一端与分流管固定连接，另一端为出口端，出口端向上倾斜设置且均朝向同一时针方向，倾斜角度α为10°；Jet pipe, the jet pipe is a right-angle elbow, the jet pipe is fixedly installed on the tower body, the jet pipe and the air inlet are connected by a shunt pipe, one end of the jet pipe is fixedly connected with the shunt pipe, and the other end is the outlet end, the outlet end is inclined upward and all face the same clockwise direction, and the inclination angle α is 10°;
增压喷嘴，增压喷嘴安装在出口端。Booster nozzle, the booster nozzle is installed at the outlet end.
在上述方案的基础上，作为优选，弧形管有三段。On the basis of the above scheme, preferably, the arc-shaped tube has three sections.
在上述方案的基础上，作为优选，分流管与进气口之间通过法兰盘固定连接。On the basis of the above solution, preferably, the shunt pipe and the air inlet are fixedly connected by a flange.
在上述方案的基础上，作为优选，增压喷嘴包括管体、内管、喷嘴盖、喷嘴芯，内管位于管体内，内管一端固定连接喷嘴盖，另一端固定连接喷嘴芯，喷嘴盖与管体固定连接，管体、内管、喷嘴盖、喷嘴芯合围形成空腔以及将该空腔与喷嘴芯的进气端连通的进气通道，空腔内设置有将其气密分割为两个空间的挡板，喷嘴盖和挡板之间设置有弹簧。On the basis of the above scheme, preferably, the booster nozzle includes a pipe body, an inner pipe, a nozzle cover and a nozzle core, the inner pipe is located in the pipe body, one end of the inner pipe is fixedly connected to the nozzle cover, the other end is fixedly connected to the nozzle core, and the nozzle cover is fixed to the nozzle cover. The tube body is fixedly connected, the tube body, the inner tube, the nozzle cover, and the nozzle core are enclosed to form a cavity and an air intake channel that communicates the cavity with the intake end of the nozzle core. A baffle of a space, a spring is arranged between the nozzle cover and the baffle.
在上述方案的基础上，作为优选，内管为阶梯管，管体为直管，喷嘴盖为环形板，喷嘴盖的内环边设置有挡边，挡边与内管上端螺纹固定连接，喷嘴盖的外环边与管体通过螺栓固定连接。On the basis of the above scheme, preferably, the inner pipe is a stepped pipe, the pipe body is a straight pipe, the nozzle cover is an annular plate, the inner ring edge of the nozzle cover is provided with a rib, and the rib is threadedly connected to the upper end of the inner pipe. The outer ring edge of the cover and the pipe body are fixedly connected by bolts.
在上述方案的基础上，作为优选，内管包括管A、管B，管A的直径小于管B的直径，管A的下端固定连接管B形成阶梯管，喷嘴芯包括管C、管D，管C的下端设置有环边，管C的外壁与管B的内壁螺纹固定连接，环边固定连接管D的上端，环边与管D的内壁之间形成与内腔连通的进气通道，进气通道的出气端设有若干个间隔分布的U形板。On the basis of the above scheme, preferably, the inner tube includes tube A and tube B, the diameter of tube A is smaller than the diameter of tube B, the lower end of tube A is fixedly connected to tube B to form a stepped tube, and the nozzle core includes tube C and tube D, The lower end of the tube C is provided with a ring edge, the outer wall of the tube C is fixedly connected with the inner wall of the tube B, the ring edge is fixedly connected to the upper end of the tube D, and an air inlet channel communicated with the inner cavity is formed between the ring edge and the inner wall of the tube D, The air outlet end of the air inlet passage is provided with a plurality of U-shaped plates distributed at intervals.
一种变径碳化塔作清洗塔清洗效果优化方法，包括如下步骤：A method for optimizing the cleaning effect of a variable-diameter carbonization tower as a cleaning tower, comprising the following steps:
1、变径碳化塔物理模型的建立：根据研究变径碳化塔的结构和设备尺寸以及内部对流场影响的零件进行简化变径碳化塔物理模型，利用soildworks完成建模；1. Establishment of the physical model of the variable-diameter carbonization tower: Simplify the physical model of the variable-diameter carbonization tower based on the research on the structure and equipment size of the variable-diameter carbonization tower and the internal parts that affect the flow field, and use soilworks to complete the modeling;
2、求解域的确定和计算域网格文件的划分，将建立的变径碳化塔物理模型导入ICEM CFD软件并确定模拟计算域，所述模拟求解域确定CO2中段进气口、CO2出口及塔体外表面为边界的封闭流体域；在其封闭流体域上采用结构网格进行划分；对边界部分命名并导出网格文件，进入求解；2. Determination of the solution domain and division of the calculation domain grid file, import the established variable diameter carbonization tower physical model into ICEM CFD software and determine the simulation calculation domain, which determines the CO2 mid-section air inlet, CO2 outlet and tower A closed fluid domain with the outer surface as the boundary; the closed fluid domain is divided by a structured mesh; the boundary part is named and the mesh file is exported to enter the solution;
3、求解过程：3. Solving process:
1)本过程选用fluent软件进行求解，将保存好的网格文件导入fluent软件后，首先对网格文件进行第一步检查确保无负体积出现并修改尺寸比例使网格和计算域中的单位尺度一致；1) In this process, fluent software is used to solve the problem. After importing the saved grid file into fluent software, first check the grid file to ensure that there is no negative volume and modify the size ratio to make the grid and the units in the computational domain. the same scale;
2)选择数学模型并设置初始条件，标准k-epsilon湍流模型；2) Select the mathematical model and set the initial conditions, the standard k-epsilon turbulence model;
3)确定材料属性CO2；3) Determine the material property CO2;
4)进行边界条件的设置，本技术方案采用多孔介质代替气体在筛板出的流动，粘性阻力系数：除了主要方向给定数值,其它方向的阻力系数均是主方向系数的1000倍；惯性阻力系数：除了主要方向给定数值，其它方向的惯性系数均是主方向系数的1000倍；由于多孔介质区域为层流流动特性，因此选择层流模型Laminar Zone；本次采用阻力系数的计算方法为压力降与速度实验数据计算阻力系数。设置进出口边界条件Intensity andHydraulic Diameter；4) Set the boundary conditions. This technical solution uses porous media to replace the flow of gas in the sieve plate. The viscous resistance coefficient: except for the given value in the main direction, the resistance coefficients in other directions are 1000 times that of the main direction coefficient; inertial resistance Coefficient: Except for the given value in the main direction, the inertia coefficients in other directions are 1000 times the coefficient in the main direction; since the porous media area is laminar flow, the laminar zone model is selected; this time, the calculation method of the resistance coefficient is as follows: The drag coefficient was calculated from the pressure drop and velocity experimental data. Set the inlet and outlet boundary conditions Intensity and Hydraulic Diameter;
5)根据探究的变径碳化塔实际情况设置求解计算控制参数，设置求解格式、离散格式、和收敛条件并激活监视器；5) According to the actual situation of the variable diameter carbonization tower to be explored, set the solution calculation control parameters, set the solution format, discrete format, and convergence conditions and activate the monitor;
6)初始化流场并完成迭代求解计算，得到所需的变径碳化塔塔内的基本物理量；6) Initialize the flow field and complete the iterative solution calculation to obtain the required basic physical quantities in the variable diameter carbonization tower;
7)后处理，主要为把求解结果显示为云图或散点图形式，便于清晰了解碳化塔内的流场分布情况。7) Post-processing, mainly to display the solution results in the form of cloud map or scatter diagram, so as to clearly understand the flow field distribution in the carbonization tower.
与现有技术相比，本发明的有益效果是：Compared with the prior art, the beneficial effects of the present invention are:
1、本发明的中段进气装置其出口端向上倾斜，且均朝向同一时针方向，使得中段进气呈环形涡流，大大减小了与下方螺旋向上的气流发生撞击，塔内压力分布趋于平稳；1. The outlet end of the mid-section air inlet device of the present invention is inclined upward, and all face the same clockwise direction, so that the mid-section air inlet is in a ring-shaped vortex, which greatly reduces the collision with the downward spiral airflow, and the pressure distribution in the tower tends to be stable ;
2、本发明的中段进气装置，进气分布均匀，便于操作中段进气量；2. The mid-section air intake device of the present invention has uniform distribution of air intake, which facilitates the operation of the mid-section air intake;
3、本发明的中段进气装置，使得中段进气呈环形涡流，大大减少对换热水箱中管束的冲击磨损。3. The mid-section air intake device of the present invention makes the mid-section air intake form an annular vortex, which greatly reduces the impact and wear on the tube bundles in the hot water exchange tank.
4、本发明的中段进气装置其出口端装有增压喷嘴，增加了进入塔内清洗气的压力，提高了清洗效果。4. The outlet end of the mid-section air inlet device of the present invention is equipped with a booster nozzle, which increases the pressure of the cleaning gas entering the tower and improves the cleaning effect.
5、常规模拟方案都是依据现实塔内情况，建立一个贴近实例，模型简化的方案，以便模拟结果更为精确。本发明方案为，改变现有装置进气分布不均匀的情况，使得现有进气分布均匀，贴近理想化，模拟结果更为精确；5. The conventional simulation scheme is based on the actual situation in the tower to establish a scheme that is close to the example and the model is simplified, so that the simulation results are more accurate. The solution of the present invention is to change the uneven distribution of the air intake in the existing device, so that the distribution of the existing air intake is uniform, close to the idealization, and the simulation result is more accurate;
6、本发明的模拟方案，如图6、7所示，通过调节中段进气速度，得到同一塔径下随着中段进气速度的改变得出塔内流场分布的变化，为工业操作提供优化参考；6. The simulation scheme of the present invention, as shown in Figures 6 and 7, obtains the change of the flow field distribution in the tower with the change of the air inlet velocity in the middle section under the same tower diameter by adjusting the air inlet speed in the middle section, which provides the industrial operation. optimized reference;
7、本发明的模拟方案，克服了工程试验投资大、周期长等缺点。7. The simulation scheme of the present invention overcomes the disadvantages of large engineering test investment and long period.
8、图6中图(2)为进气速度是图(1)进气速度2倍下的压力分布云图，从图6中我们可以看出随着清洗气的增加，塔内压力随之增加且塔内压力分布更加均匀。塔内压力变化波动小，有利于清洗气清除碳疤，提高清洗效率。图7中图(2)为进气速度是图(1)进气速度2倍下的压力分布云图，从图7中我们可以看出随着清洗气的增加，塔内中部速度随之增加。速度增加使得液体湍流强度增加，塔圈液位较低，漏液现象减少，清洗效果好。8. Figure (2) in Figure 6 is the pressure distribution cloud diagram when the air intake velocity is twice that of Figure (1). From Figure 6, we can see that with the increase of purge gas, the pressure in the tower increases. And the pressure distribution in the tower is more uniform. The pressure fluctuation in the tower is small, which is beneficial to the cleaning gas to remove carbon scars and improve the cleaning efficiency. Figure (2) in Figure 7 is the cloud diagram of the pressure distribution when the intake velocity is twice that of Figure (1). From Figure 7, we can see that with the increase of purge gas, the velocity in the middle of the tower increases. The increase of the speed increases the liquid turbulence intensity, the liquid level in the tower ring is lower, the liquid leakage phenomenon is reduced, and the cleaning effect is good.
附图说明Description of drawings
图1为本发明中段进气装置结构示意图；1 is a schematic structural diagram of a mid-section air intake device of the present invention;
图2为本发明喷嘴的剖面图；Fig. 2 is the sectional view of the nozzle of the present invention;
图3为本发明喷嘴连接轴的三维视图；3 is a three-dimensional view of a nozzle connecting shaft of the present invention;
图4为本发明喷嘴芯的三维视图；4 is a three-dimensional view of a nozzle core of the present invention;
图5为本发明变径碳化塔的三维物理模型图；Fig. 5 is the three-dimensional physical model diagram of the variable diameter carbonization tower of the present invention;
图6为本发明具体实施工况下压力分布云图；Fig. 6 is the cloud map of pressure distribution under the working conditions of the specific implementation of the present invention;
图7为本发明具体实施工况下速度分布云图。FIG. 7 is a cloud diagram of the velocity distribution under the working conditions of the specific implementation of the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围，在本文中，可拆式固定是指不破坏零部件的原有性能可以拆解。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention. The original performance of the parts can be disassembled.
如图1所示，变径碳化塔，包括，As shown in Figure 1, the variable diameter carbonization tower includes,
位于中段的塔体1；
中段进气装置，中段进气装置与塔体同轴线设置，中段进气装置包括圆环形管，圆环形管上具有若干个延其周向均匀分布的出气口4，圆环形管由若干段弧形管2构成，弧形管两端封闭，弧形管中部径向向外设置有进气口3，弧形管径向向内具有两个出气口，两个出气口对称设置在进气口的两侧；The air inlet device in the middle section is arranged coaxially with the tower body, and the air inlet device in the middle section includes a circular ring-shaped pipe. It is composed of several arc-shaped
喷流管5，喷流管为直角弯管，喷流管固定安装在塔体上，喷流管与进气口之间通过分流管6连接，喷流管一端与分流管固定连接，另一端为出口端，出口端向上倾斜设置且均朝向同一时针方向，倾斜角度α为10°；The
增压喷嘴，增压喷嘴安装在出口端。Booster nozzle, the booster nozzle is installed at the outlet end.
在上述的方案中，圆环形管上均匀设置多个分流管，增大了单位时间内的进气量，提高了碳化塔内气体分布的均匀性，提高了碳化塔的进气效率；分流管上设置有喷流管，喷流管采用直角弯管，并且其出口端向上倾斜设置，使得排出的气体成环形涡流，分散于各个方向，相比于常规多分流管直接进气的方式，其进气方式更为合理，可避免了对换热水箱中的管束的冲击磨损，提高了设备的使用寿命。In the above scheme, a plurality of shunt pipes are evenly arranged on the annular tube, which increases the intake air volume per unit time, improves the uniformity of gas distribution in the carbonization tower, and improves the intake efficiency of the carbonization tower; There is a jet pipe on the pipe, the jet pipe adopts a right-angle elbow, and its outlet end is inclined upward, so that the discharged gas forms an annular vortex and is dispersed in all directions. The air intake method is more reasonable, which can avoid the impact and wear on the tube bundle in the hot water exchange tank, and improve the service life of the equipment.
弧形管有三段。The arc tube has three sections.
分流管与进气口之间通过法兰盘固定连接。The shunt pipe and the air inlet are fixedly connected through a flange.
增压喷嘴包括管体7、内管8、喷嘴盖9、喷嘴芯10，内管位于管体内，内管一端固定连接喷嘴盖，另一端固定连接喷嘴芯，喷嘴盖与管体固定连接，管体、内管、喷嘴盖、喷嘴芯合围形成空腔以及将该空腔11与喷嘴芯的进气端连通的进气通道，空腔内设置有将其气密分割为两个空间的挡板12，喷嘴盖和挡板之间设置有弹簧13。The booster nozzle includes a
气体通过喷流管，会分成两个支路，一个支路的气体自喷嘴芯进入塔内，另一个支路会自进气通道进入增压腔中。进入增压腔的气体会慢慢挤压挡板和弹簧，由于增压腔是封闭的，该支路的气体会返回，返回的气体还会受到弹簧的推力作用，以此方法来提高喷嘴出气的压力，提高清洗效果。When the gas passes through the jet pipe, it will be divided into two branches, the gas of one branch will enter the tower from the nozzle core, and the other branch will enter the booster cavity from the intake channel. The gas entering the booster chamber will slowly squeeze the baffle plate and the spring. Since the booster chamber is closed, the gas in the branch will return, and the returned gas will also be pushed by the spring, so as to improve the nozzle outlet gas. pressure to improve the cleaning effect.
内管为阶梯管，管体为直管，喷嘴盖为环形板，喷嘴盖的内环边设置有挡边14，挡边与内管上端螺纹固定连接，喷嘴盖的外环边与管体通过螺栓固定连接。The inner pipe is a stepped pipe, the pipe body is a straight pipe, the nozzle cover is an annular plate, the inner ring edge of the nozzle cover is provided with a
内管包括管A15、管B16，管A的直径小于管B的直径，管A的下端固定连接管B形成阶梯管，喷嘴芯包括管C17、管D18，管C的下端设置有环边19，管C的外壁与管B的内壁螺纹固定连接，环边固定连接管D的上端，环边与管D的内壁之间形成与内腔连通的进气通道21，进气通道的出气端设有若干个间隔分布的U形板20。The inner tube includes a tube A15 and a tube B16, the diameter of the tube A is smaller than the diameter of the tube B, the lower end of the tube A is fixedly connected to the tube B to form a stepped tube, the nozzle core includes a tube C17, a tube D18, and the lower end of the tube C is provided with a
通过U形板的设计，使得进气通道出气端的气流方向发生改变，一个方向为沿进气通道竖直向上，另一个方向为在竖直方向上受到U形板阻挡，由其两侧向空腔进气；两种不同的进气方向使得增压腔的增压效果更为明显。Through the design of the U-shaped plate, the direction of the airflow at the outlet end of the intake channel is changed. One direction is vertically upward along the intake channel, and the other direction is blocked by the U-shaped plate in the vertical direction, and the air is directed from both sides to the air. Cavity intake; two different intake directions make the supercharging effect of the supercharging cavity more obvious.
一种变径碳化塔作清洗塔清洗效果优化方法，包括如下步骤：A method for optimizing the cleaning effect of a variable-diameter carbonization tower as a cleaning tower, comprising the following steps:
1、变径碳化塔物理模型的建立：根据研究变径碳化塔的结构和设备尺寸以及内部对流场影响的零件进行简化变径碳化塔物理模型，利用soildworks完成建模；1. Establishment of the physical model of the variable-diameter carbonization tower: Simplify the physical model of the variable-diameter carbonization tower based on the research on the structure and equipment size of the variable-diameter carbonization tower and the internal parts that affect the flow field, and use soilworks to complete the modeling;
2、求解域的确定和计算域网格文件的划分，将建立的变径碳化塔物理模型导入ICEM CFD软件并确定模拟计算域，所述模拟求解域确定CO2中段进气口、CO2出口及塔体外表面为边界的封闭流体域；在其封闭流体域上采用结构网格进行划分；对边界部分命名并导出网格文件，进入求解；2. Determination of the solution domain and division of the calculation domain grid file, import the established variable diameter carbonization tower physical model into ICEM CFD software and determine the simulation calculation domain, which determines the CO2 mid-section air inlet, CO2 outlet and tower A closed fluid domain with the outer surface as the boundary; the closed fluid domain is divided by a structured mesh; the boundary part is named and the mesh file is exported to enter the solution;
3、求解过程：3. Solving process:
1)本过程选用fluent软件进行求解，将保存好的网格文件导入fluent软件后，首先对网格文件进行第一步检查确保无负体积出现并修改尺寸比例使网格和计算域中的单位尺度一致；1) In this process, fluent software is used to solve the problem. After importing the saved grid file into fluent software, first check the grid file to ensure that there is no negative volume and modify the size ratio to make the grid and the units in the computational domain. the same scale;
2)选择数学模型并设置初始条件，标准k-epsilon湍流模型；2) Select the mathematical model and set the initial conditions, the standard k-epsilon turbulence model;
3)确定材料属性CO2；3) Determine the material property CO2;
4)进行边界条件的设置，本技术方案采用多孔介质代替气体在筛板出的流动，粘性阻力系数：除了主要方向给定数值,其它方向的阻力系数均是主方向系数的1000倍；惯性阻力系数：除了主要方向给定数值，其它方向的惯性系数均是主方向系数的1000倍；由于多孔介质区域为层流流动特性，因此选择层流模型Laminar Zone；本次采用阻力系数的计算方法为压力降与速度实验数据计算阻力系数。设置进出口边界条件Intensity andHydraulic Diameter；4) Set the boundary conditions. This technical solution uses porous media to replace the flow of gas in the sieve plate. The viscous resistance coefficient: except for the given value in the main direction, the resistance coefficients in other directions are 1000 times that of the main direction coefficient; inertial resistance Coefficient: Except for the given value in the main direction, the inertia coefficients in other directions are 1000 times the coefficient in the main direction; since the porous media area is laminar flow, the laminar zone model is selected; this time, the calculation method of the resistance coefficient is as follows: The drag coefficient was calculated from the pressure drop and velocity experimental data. Set the inlet and outlet boundary conditions Intensity and Hydraulic Diameter;
5)根据探究的变径碳化塔实际情况设置求解计算控制参数，设置求解格式、离散格式、和收敛条件并激活监视器；5) According to the actual situation of the variable diameter carbonization tower to be explored, set the solution calculation control parameters, set the solution format, discrete format, and convergence conditions and activate the monitor;
6)初始化流场并完成迭代求解计算，得到所需的变径碳化塔塔内的基本物理量；6) Initialize the flow field and complete the iterative solution calculation to obtain the required basic physical quantities in the variable diameter carbonization tower;
7)后处理，主要为把求解结果显示为云图或散点图形式，便于清晰了解脱硫塔内的流场分布情况。7) Post-processing, mainly to display the solution results in the form of cloud map or scatter diagram, so as to clearly understand the flow field distribution in the desulfurization tower.
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010598374.3A CN111906085B (en) | 2020-06-28 | 2020-06-28 | Variable diameter carbonization tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010598374.3A CN111906085B (en) | 2020-06-28 | 2020-06-28 | Variable diameter carbonization tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111906085A true CN111906085A (en) | 2020-11-10 |
| CN111906085B CN111906085B (en) | 2021-08-17 |
Family
ID=73227900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010598374.3A Active CN111906085B (en) | 2020-06-28 | 2020-06-28 | Variable diameter carbonization tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111906085B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203379872U (en) * | 2013-07-19 | 2014-01-08 | 江苏科圣化工机械有限公司 | Organic silicon fluidized bed reactor for strengthening axial gas distribution |
| JP2015174025A (en) * | 2014-03-14 | 2015-10-05 | 三菱日立パワーシステムズ株式会社 | Seawater flue gas desulfurization apparatus and application method of the same |
| CN105013635A (en) * | 2014-04-18 | 2015-11-04 | 海尔集团公司 | Spray nozzle |
| CN106731549A (en) * | 2016-12-30 | 2017-05-31 | 东南大学 | A kind of effective wet method fume desulfurizing system for eliminating gypsum rain |
| CN207943887U (en) * | 2018-02-02 | 2018-10-09 | 河南省化工机械制造有限公司 | A kind of reducing type carbonators |
| CN208612793U (en) * | 2018-05-28 | 2019-03-19 | 江苏丰尚智能科技有限公司 | A kind of blast cleaning device |
| CN208667122U (en) * | 2018-07-27 | 2019-03-29 | 江西华明纳米碳酸钙有限公司 | A kind of carbonators kiln gas distributor |
| CN109775728A (en) * | 2019-03-22 | 2019-05-21 | 淮阴工学院 | Intake device of variable diameter carbonization tower |
-
2020
- 2020-06-28 CN CN202010598374.3A patent/CN111906085B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203379872U (en) * | 2013-07-19 | 2014-01-08 | 江苏科圣化工机械有限公司 | Organic silicon fluidized bed reactor for strengthening axial gas distribution |
| JP2015174025A (en) * | 2014-03-14 | 2015-10-05 | 三菱日立パワーシステムズ株式会社 | Seawater flue gas desulfurization apparatus and application method of the same |
| CN105013635A (en) * | 2014-04-18 | 2015-11-04 | 海尔集团公司 | Spray nozzle |
| CN106731549A (en) * | 2016-12-30 | 2017-05-31 | 东南大学 | A kind of effective wet method fume desulfurizing system for eliminating gypsum rain |
| CN207943887U (en) * | 2018-02-02 | 2018-10-09 | 河南省化工机械制造有限公司 | A kind of reducing type carbonators |
| CN208612793U (en) * | 2018-05-28 | 2019-03-19 | 江苏丰尚智能科技有限公司 | A kind of blast cleaning device |
| CN208667122U (en) * | 2018-07-27 | 2019-03-29 | 江西华明纳米碳酸钙有限公司 | A kind of carbonators kiln gas distributor |
| CN109775728A (en) * | 2019-03-22 | 2019-05-21 | 淮阴工学院 | Intake device of variable diameter carbonization tower |
Non-Patent Citations (1)
| Title |
|---|
| 马兆泰等: "基于Fluent变径碳化塔变径段布局方式的研究", 《装备制造技术》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111906085B (en) | 2021-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107198964B (en) | System and method for improving uniformity of SCR flow field | |
| CN204214172U (en) | A kind of cold-producing medium distribution structure of downward film evaporator | |
| CN110534776A (en) | A method of the more Heap Allocation inner-cavity structure optimizations of fuel cell based on fluent emulation | |
| CN111760445A (en) | A kind of desulfurization tower flow field simulation method | |
| CN105574288A (en) | Method for designing water inlet conduit three-dimensional body flow surface of high-performance large-flow pump station | |
| CN102350275A (en) | Gas pre-distributor of fluidized bed reactor | |
| CN109780925A (en) | A plate-fin heat exchanger baffle nozzle structure head | |
| CN111906085A (en) | Optimization method of cleaning effect of variable diameter carbonization tower as cleaning tower | |
| CN105603458A (en) | Aluminum electrolysis cell gas collection flue sucking gas asymmetrically and uniformly | |
| CN204082268U (en) | A kind of anti-explosion diesel engine tail gas cooling pre-cooler | |
| CN104596156A (en) | Row-depth-variable fin heat exchanger | |
| CN103920352B (en) | Automatic disturbance packing type wet process purification device | |
| CN210993613U (en) | A four-cycle spray tower system for DMF-containing waste gas absorption | |
| CN204522697U (en) | A kind of novel seawater desulfurizing and absorption tower | |
| CN209333408U (en) | A kind of unsteady flow speed circumferential fiber grid demisting device and demister | |
| CN110486746B (en) | Heat exchange structure with narrow slit-shaped flue | |
| CN110261062B (en) | Drag reducer screening and evaluating device and using method | |
| CN209302790U (en) | A kind of Molotov cocktail air inlet equalizer flow tube | |
| CN208167870U (en) | A kind of dedicated auxiliary water tank device of turbine experimental bench | |
| CN206131424U (en) | Crisscross spiral baffling plate electric heater | |
| CN207539038U (en) | A kind of decompression muffling type vacuum water separator | |
| CN206469743U (en) | A kind of Novel spiral distorts waved tube heat exchanger | |
| CN220656991U (en) | Silicon carbide falling film absorber | |
| CN203672199U (en) | Cooling device in electrostatic lampblack purifier | |
| CN109668167A (en) | A kind of LNG submerged combustion gasifier flue gas distributor and its design method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20201110 Assignee: JIANGSU KESHENG CHEMICAL MACHINERY Co.,Ltd. Assignor: Huaiyin Institute of Technology Contract record no.: X2021980011908 Denomination of invention: Variable diameter carbonization tower Granted publication date: 20210817 License type: Common License Record date: 20211105 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240927 Address after: No. 20 Longteng East Road, Huai'an Industrial Park, Jiangsu Province 223005 Patentee after: Jiangsu Kesheng Special Equipment Manufacturing Co.,Ltd. Country or region after: China Address before: 223005 Huaian 1 Jiangsu economic and Technological Development Zone Patentee before: HUAIYIN INSTITUTE OF TECHNOLOGY Country or region before: China |
|
| TR01 | Transfer of patent right |