CN115193347B - Chlorine distributor and chlorine distribution method for chlorination reaction kettle - Google Patents
Chlorine distributor and chlorine distribution method for chlorination reaction kettle Download PDFInfo
- Publication number
- CN115193347B CN115193347B CN202210900288.2A CN202210900288A CN115193347B CN 115193347 B CN115193347 B CN 115193347B CN 202210900288 A CN202210900288 A CN 202210900288A CN 115193347 B CN115193347 B CN 115193347B
- Authority
- CN
- China
- Prior art keywords
- air distribution
- upper air
- pipe
- annular
- holes
- 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.)
- Active
Links
- 238000009826 distribution Methods 0.000 title claims abstract description 367
- 239000000460 chlorine Substances 0.000 title claims abstract description 50
- 229910052801 chlorine Inorganic materials 0.000 title claims abstract description 50
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 238000005660 chlorination reaction Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 15
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 claims abstract description 13
- MXXWOMGUGJBKIW-YPCIICBESA-N piperine Chemical compound C=1C=C2OCOC2=CC=1/C=C/C=C/C(=O)N1CCCCC1 MXXWOMGUGJBKIW-YPCIICBESA-N 0.000 claims 1
- 229940075559 piperine Drugs 0.000 claims 1
- 235000019100 piperine Nutrition 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000004744 fabric Substances 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 7
- 239000000047 product Substances 0.000 description 4
- 239000003513 alkali Substances 0.000 description 2
- 150000001804 chlorine Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 206010024769 Local reaction Diseases 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- -1 photoinitiator Substances 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/008—Feed or outlet control devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
- B01J2204/002—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices the feeding side being of particular interest
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00245—Avoiding undesirable reactions or side-effects
- B01J2219/00259—Preventing runaway of the chemical reaction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The application discloses a chlorine distributor used in a chlorination reaction kettle, which comprises a gas transmission vertical pipe and a distribution horizontal pipe which are mutually communicated, wherein the distribution horizontal pipe is connected to the top of the gas transmission vertical pipe, a plurality of annular pipes which are coaxially arranged are arranged on the distribution horizontal pipe, the annular pipes are horizontally arranged and are arranged at equal intervals, two ends of each annular pipe are respectively formed into a gas transmission end and a closed end, the gas transmission end is communicated with the distribution horizontal pipe, and gas distribution holes are formed in the annular pipes and the distribution horizontal pipe; the chlorination reaction kettle is provided with a cylindrical kettle body extending along the vertical direction, and a chlorine distributor is positioned in the kettle body; the number of the annular pipes and the inner diameter of the kettle body are represented by the formulaAnd (5) determining. The application also discloses a chlorine distribution method used in the chlorination reaction kettle. The invention realizes that the chlorine gas outlet flow sprayed out by each air distribution hole is basically equal, so that the chlorine gas is uniformly distributed in the gas-liquid reaction space in the chlorination reaction kettle, and the quality and the production efficiency of the product are improved.
Description
Technical Field
The invention particularly relates to a chlorine distributor and a chlorine distribution method for a chlorination reaction kettle.
Background
The chlorination reaction generally refers to a reaction in which chlorine is introduced into the compound. In chemical production, the chlorination reaction generally includes three types of displacement chlorination, addition chlorination and oxidation chlorination. The process comprising the chlorination reaction is a chlorination process, the chlorination process is one of chemical processes with very wide application, the variety of products is large, the product is used in the fields of medicine, pesticide, photoinitiator, absorbent manufacturing and the like, and the chlorinated product plays a significant role in the chemical industry. The chlorination reaction is exothermic and can be carried out using reactors of various structures, such as kettles, towers and the like.
The chlorine distributor is used as a core component and plays an important role in equipment such as a chlorination reaction kettle and the like. The common chlorine gas distributor at present has the common characteristics that the radial sectional areas of the inner cavities of different distribution pipes are equal, the distribution holes formed in the distribution pipes are also identical in size, the chlorine gas flow of each distribution hole is different due to pipe resistance, so that the chlorine gas is unevenly distributed in the reaction kettle, when the gas-liquid contact reaction is carried out, the area with more chlorine gas distribution amount can cause local reaction, sometimes excessive chlorine gas can not completely react, sodium hypochlorite byproducts are generated along with the tail gas entering an alkali liquor absorption tower, the consumption of the chlorine gas and liquid alkali is increased, and the production cost is increased; in the area with less chlorine distribution, the problem of incomplete reaction exists, and the production efficiency is affected.
Disclosure of Invention
In order to solve the problems, the application firstly discloses a chlorine distributor used in a chlorination reaction kettle, which comprises a gas transmission vertical pipe and a horizontal distribution horizontal pipe, wherein the gas transmission vertical pipe and the horizontal distribution horizontal pipe are mutually communicated, one end of the horizontal distribution horizontal pipe is connected to the top of the gas transmission vertical pipe, a plurality of coaxially arranged annular pipes are arranged on the horizontal distribution horizontal pipe, the annular pipes are horizontally arranged, the two ends of each annular pipe are respectively formed into a gas transmission end and a closed end, the gas transmission end is communicated with the horizontal distribution pipe, and gas distribution holes are formed in the annular pipes and the horizontal distribution pipes; the chlorination reaction kettle is provided with a cylindrical kettle body extending along the vertical direction, and the chlorine distributor is positioned in the kettle body;
the number of the annular pipes and the inner diameter of the kettle body are in accordance with the formula (I),
in formula (one): d (D) 0 Is the inner diameter of the kettle body of the chlorination reaction kettle, d 0 Is the first center distance of the pipe bodies of the adjacent annular pipes, N 0 Is the number of annular tubes.
The annular pipe in this application all is non-closed circular, has a breach, and the both ends of breach form into gas transmission end and blind end respectively, and this chlorine distributor's setting mode is central bottom income formula in chloridizing reaction cauldron, and gas transmission standpipe extends from bottom to top promptly, and each annular pipe uses the axis of the cauldron body to set up coaxially as the axis.
Further, the air distribution holes comprise an upper air distribution hole and a lower air distribution hole, wherein the upper air distribution hole is arranged on the upper sides of the annular pipe and the distribution transverse pipe, the lower air distribution hole is arranged on the lower sides of the annular pipe and the distribution transverse pipe, the upper air distribution hole and the lower air distribution hole are in one-to-one correspondence, and in the vertical direction, the corresponding upper air distribution hole and the lower air distribution hole are vertically opposite;
corresponding to each annular pipe, only one upper air distribution hole and one lower air distribution hole are formed in the transverse distribution pipe; the upper air distribution holes on each annular pipe and the corresponding upper air distribution holes on the distribution transverse pipes form an upper air distribution hole group;
in the same upper air distribution hole group, the second center distance between adjacent upper air distribution holes is equal, the second center distance is equal to the first center distance between the pipe bodies of adjacent annular pipes, and the number of the upper air distribution holes in each upper air distribution hole group is determined by a formula (II):
in the formula (II): ds is the second center distance between adjacent upper air distribution holes in the same group of upper air distribution holes; along the radial direction of the kettle body from outside to inside,the serial numbers of the annular pipes are 1, 2, …, i, i+1, … and N in sequence 0 The upper air distribution hole group formed by the upper air distribution holes on the ith annular tube and the upper air distribution holes on the corresponding distribution transverse tube is called an ith upper air distribution hole group, N i The total number of upper air distribution holes in the ith upper air distribution hole group.
Specifically, the nominal radial cross-sectional area of the inner cavity of each annular tube except the annular tube No. 1 is determined by the formula (three):
in formula (III): sigma (sigma) i A nominal radial cross-sectional area of the inner cavity of the i-th annular tube; mu is the flow coefficient of the air distribution hole, and the value of mu is 0.55-0.75; n is the total amount of all upper air distribution holes, anda is the radial sectional area of the inner cavity of the transverse distribution pipe; l is the length of the distributed transverse tube; sigma (sigma) 1 Is the nominal radial sectional area sigma of the inner cavity of the No. 1 annular tube 1 The value of (2) is 25 pi mm 2 ～225πmm 2 The method comprises the steps of carrying out a first treatment on the surface of the Lambda is the on-way resistance coefficient of the pipeline, and the value of lambda is 0.02-0.04; n (N) 1 The number of the upper air distribution holes in the 1 st upper air distribution hole group;
each upper air distribution hole has the same inner diameter as the corresponding lower air distribution hole, and the upper air distribution holes in each upper air distribution hole group are numbered as 1, 2, …, j, j+1, … and N in sequence from the closed end to the distribution horizontal pipe i -1、N i The inner diameter of the j-th upper hole air distribution hole in the i-th upper air distribution hole group is d ij The inner diameter of the No. 1 upper air distribution hole in the i upper air distribution hole group is d i1 The inner diameters of the No. 1 upper air distribution holes in each upper air distribution hole group are equal, d i1 The value of (2) is 1 mm-5 mm, the N is the th i The air distribution holes on the number are positioned on the distribution transverse tube, and the N is the i The inner diameter of the air hole is
The value of (c) is determined by equation (c):
the radial sectional area of the inner cavity of each annular tube is represented by the formulaDetermining, wherein->Is the radial sectional area of the inner cavity of the ith annular tube, +.>N in the ith upper air distribution hole group i The area of the air holes is distributed on the number;
determining the division d from equation (five) i1 Andd outside ij Is used as a reference to the value of (a),
further, all the upper air distribution holes in at least one upper air distribution hole group are positioned on the same virtual circle. Preferably, each upper air distribution hole group is provided with a virtual circle, and all the upper air distribution holes in each upper air distribution hole group are positioned on the corresponding virtual circle.
The application also discloses a chlorine distribution method used in the chlorination reaction kettle, the chlorination reaction kettle is provided with a cylindrical kettle body extending along the vertical direction, a chlorine distributor is arranged in the kettle body, the chlorine distributor comprises a vertical gas transmission vertical pipe extending along the vertical direction and a horizontal distribution horizontal pipe extending along the horizontal direction which are communicated with each other, one end of the horizontal distribution pipe is connected to the top of the vertical gas transmission vertical pipe, a plurality of annular pipes which are coaxially arranged are arranged on the horizontal distribution pipe, the annular pipes are horizontally arranged, the annular pipes are arranged at equal intervals, two ends of each annular pipe are respectively formed into a gas transmission end and a closed end, wherein the gas transmission end is communicated with the horizontal distribution pipe, air distribution holes are formed in the annular pipes and the horizontal distribution pipe, and the chlorine enters into the annular pipes through the vertical gas transmission pipe and the horizontal distribution pipe and is sprayed out through the air distribution holes;
the number of the annular pipes and the inner diameter of the kettle body are in accordance with the formula (I),
in formula (one): d (D) 0 Is the inner diameter of the kettle body of the chlorination reaction kettle, d 0 Is the first center distance of the pipe bodies of the adjacent annular pipes, N 0 Is the number of annular tubes.
The annular pipe in this application all is non-closed circular, has a breach, and the both ends of breach form into gas transmission end and blind end respectively, and this chlorine distributor's setting mode is central bottom income formula in chloridizing reaction cauldron, and gas transmission standpipe extends from bottom to top promptly, and each annular pipe uses the axis of the cauldron body to set up coaxially as the axis.
Further, the air distribution holes comprise an upper air distribution hole and a lower air distribution hole, wherein the upper air distribution hole is arranged on the upper sides of the annular pipe and the distribution transverse pipe, the lower air distribution hole is arranged on the lower sides of the annular pipe and the distribution transverse pipe, the upper air distribution hole and the lower air distribution hole are in one-to-one correspondence, and in the vertical direction, the corresponding upper air distribution hole and the lower air distribution hole are vertically opposite;
corresponding to each annular pipe, only one upper air distribution hole and one lower air distribution hole are formed in the transverse distribution pipe; the upper air distribution holes on each annular pipe and the corresponding upper air distribution holes on the distribution transverse pipes form an upper air distribution hole group;
in the same upper air distribution hole group, the second center distance between adjacent upper air distribution holes is equal, the second center distance is equal to the first center distance between the pipe bodies of adjacent annular pipes, and the number of the upper air distribution holes in each upper air distribution hole group is determined by a formula (II):
in the formula (II): ds is the second center distance between adjacent upper air distribution holes in the same group of upper air distribution holes; the serial numbers of the annular pipes are 1, 2, …, i, i+1, … and N in sequence along the radial direction of the kettle body from outside to inside 0 The upper air distribution hole group formed by the upper air distribution holes on the ith annular tube and the upper air distribution holes on the corresponding distribution transverse tube is called an ith upper air distribution hole group, N i The total number of upper air distribution holes in the ith upper air distribution hole group.
Specifically, the nominal radial cross-sectional area of the inner cavity of each annular tube except the annular tube No. 1 is determined by the formula (three):
in formula (III): sigma (sigma) i A nominal radial cross-sectional area of the inner cavity of the i-th annular tube; mu is the flow coefficient of the air distribution hole, and the value of mu is 0.55-0.75; n is the total amount of all upper air distribution holes, anda is the radial sectional area of the inner cavity of the transverse distribution pipe; l is the length of the distributed transverse tube; sigma (sigma) 1 Is the nominal radial sectional area sigma of the inner cavity of the No. 1 annular tube 1 The value of (2) is 25 pi mm 2 ～225πmm 2 The method comprises the steps of carrying out a first treatment on the surface of the Lambda is the on-way resistance coefficient of the pipeline, and the value of lambda is 0.02-0.04; n (N) 1 The number of the upper air distribution holes in the 1 st upper air distribution hole group;
each upper air distribution hole has the same inner diameter as the corresponding lower air distribution hole, and the upper air distribution holes in each upper air distribution hole group are numbered as 1, 2, …, j, j+1, … and N in sequence from the closed end to the distribution horizontal pipe i -1、N i In the ith upper air distribution hole groupThe inner diameter of the j-th upper hole air distribution hole is d ij The inner diameter of the No. 1 upper air distribution hole in the i upper air distribution hole group is d i1 The inner diameters of the No. 1 upper air distribution holes in each upper air distribution hole group are equal, d i1 The value of (2) is 1 mm-5 mm, the N is the th i The air distribution holes on the number are positioned on the distribution transverse tube, and the N is the i The inner diameter of the air hole is
The value of (c) is determined by equation (c):
the radial sectional area of the inner cavity of each annular tube is represented by the formulaDetermining, wherein->Is the radial sectional area of the inner cavity of the ith annular tube, +.>N in the ith upper air distribution hole group i The area of the air holes is distributed on the number;
determining the division d from equation (five) i1 Andd outside ij Is used as a reference to the value of (a),
further, all the upper air distribution holes in at least one upper air distribution hole group are positioned on the same virtual circle. Preferably, each upper air distribution hole group is provided with a virtual circle, and all the upper air distribution holes in each upper air distribution hole group are positioned on the corresponding virtual circle.
In this application, a chlorine distributor for in chlorination reaction kettle comprises gas transmission standpipe, distribute violently pipe and a plurality of equidistant annular pipe, all seted up the cloth gas pocket on annular pipe and distribute violently pipe, cloth gas pocket includes cloth gas pocket and lower cloth gas pocket, wherein go up cloth gas pocket setting in annular pipe and the upside of distributing violently pipe, lower cloth gas pocket sets up the downside at annular pipe and distributing violently pipe, go up cloth gas pocket and lower cloth gas pocket one-to-one, and on vertical direction, corresponding last cloth gas pocket is relative from top to bottom with lower cloth gas pocket, go up cloth gas pocket on each annular pipe and the last cloth gas pocket on the corresponding distribution violently pipe constitutes an upward cloth gas pocket group, all go up cloth gas pockets in every upward cloth gas pocket group all are located same virtual circle, the first centre-to-centre spacing of the body of adjacent annular pipe equals with the second centre-to-centre spacing between the adjacent cloth gas pocket of same side, thereby guaranteed the position homogeneity of cloth gas pocket.
In this application, the setting mode of chlorine distributor in chlorination reaction kettle is central bottom income formula, in the direction of height, the top of gas transmission standpipe is located the intermediate position of setting for liquid level height in the chlorination reaction kettle, make each annular pipe be located the intermediate position of setting for liquid level height in the chlorination reaction kettle, make in the production process, from last cloth gas pocket spun chlorine distribute in last half liquid level region, from lower cloth gas pocket spun chlorine distribute in half liquid level region down, through the internal diameter cross-section of confirming each annular pipe and the internal diameter of each cloth gas pocket, realize that each cloth gas pocket spun chlorine play flow is basically equal, make chlorine distribute evenly on the gas-liquid reaction space in the chlorination reaction kettle, make the reaction process steady, product quality and production efficiency have been improved, local violent reaction has been avoided, the possibility of accident emergence has been reduced.
Drawings
FIG. 1 is a schematic structural view of a chlorination reactor equipped with a chlorine distributor.
FIG. 2 is a schematic structural diagram of a chlorine distributor.
Fig. 3 is a top view of fig. 2.
FIG. 4 is a graph showing the statistical distribution of chlorine output of each of the air distribution holes of the examples of the present invention and the comparative examples.
Detailed Description
Referring to fig. 1 and 2, a chlorine distributor for use in a chlorination reactor 50, the chlorination reactor 50 includes a cylindrical reactor body 51 extending in a vertical direction, an upper seal head 52 installed at a top of the reactor body, and a lower seal head 53 installed at a bottom of the reactor body, and the reactor body 51 has a central axis 55 extending in the vertical direction.
The chlorine distributor is located in the kettle body, the chlorine distributor comprises a gas transmission vertical pipe 1 which is mutually communicated and extends along the vertical direction and a distribution horizontal pipe 2 which extends along the horizontal direction, the gas transmission vertical pipe 1 extends from bottom to top, the lower end of the gas transmission vertical pipe 1 downwards extends out of the chlorine reaction kettle and then forms a chlorine inlet 11, one end of the distribution horizontal pipe 2 is connected to the top of the gas transmission vertical pipe 1, and the other end of the distribution horizontal pipe 2 is in a closed shape.
Six annular pipes 3 which are coaxially arranged by taking the central axis 55 of the kettle body as an axis are arranged on the horizontal distribution pipe 2, the annular pipes 3 are horizontally arranged, the annular pipes are arranged at equal intervals, each annular pipe 3 is provided with a notch 31, two ends of the notch are respectively formed into a gas transmission end 32 and a closed end 33, the gas transmission end 32 is communicated with the horizontal distribution pipe 2, and gas distribution holes are formed in the annular pipes and the horizontal distribution pipe. The annular pipes are positioned in the same horizontal plane and supported on the inner wall of the kettle body, the annular pipes are positioned in the middle position of the set liquid level height in the chlorination reaction kettle, namely, in the height direction, the annular pipes are positioned in the middle position of the set liquid level height range in the chlorination reaction kettle, the reference numeral 54 in the drawing indicates the set liquid level, and the height of the set liquid level is the set liquid level height.
Calculating a first center distance of pipe bodies of adjacent annular pipes according to a formula (I):
in the formula (I), D 0 Is the inner diameter of the kettle body of the chlorination reaction kettle, d 0 Is adjacent to the ringFirst center distance of pipe bodies of the pipes, N 0 Is the number of annular tubes.
In the present embodiment, D 0 ＝1.4m，N 0 =6, calculate d 0 ＝0.1m。
The air distribution holes comprise an upper air distribution hole 4 and a lower air distribution hole, wherein the upper air distribution hole 4 is arranged on the upper side of the annular pipe and the upper side of the distribution transverse pipe, the lower air distribution hole is arranged on the lower side of the annular pipe and the lower side of the distribution transverse pipe, the upper air distribution holes and the lower air distribution holes are in one-to-one correspondence, and in the vertical direction, the corresponding upper air distribution holes and the lower air distribution holes are vertically opposite.
Corresponding to each annular pipe, only one upper air distribution hole and one lower air distribution hole are formed in the transverse distribution pipe; the upper air distribution holes on each annular pipe and the corresponding upper air distribution holes on the distribution transverse pipes form an upper air distribution hole group, and all the upper air distribution holes in each upper air distribution hole group are positioned on the same virtual circle.
In the same upper air distribution hole group, the second center distance between the adjacent upper air distribution holes 4 is equal, the second center distance is equal to the first center distance between the pipe bodies of the adjacent annular pipes, and the number of the upper air distribution holes in each upper air distribution hole group is determined by a formula (II):
in the formula (II), ds is a second center distance between adjacent upper air distribution holes in the same group of upper air distribution holes; the serial numbers of the annular pipes are 1, 2, …, i, i+1, … and N in sequence along the radial direction of the kettle body from outside to inside 0 The upper air distribution hole group formed by the upper air distribution holes on the ith annular tube and the upper air distribution holes on the corresponding distribution transverse tube is called an ith upper air distribution hole group, N i The total number of upper air distribution holes in the ith upper air distribution hole group.
In this embodiment, the numbers of the 6 annular pipes are sequentially 1, 2, 3, 4, 5 and 6 along the radial direction of the kettle body from outside to inside, and for convenience of description, the numbers of the 6 annular pipes are sequentially set to 3-1, 3-2, 3-3, 3-4, 3-5 and 3-6, wherein the first number represents the category attribute, the second number represents the number, that is, 3 represents the annular pipe, and 1, 2, 3, 4, 5 and 6 represent the numbers of the annular pipes.
Since the second center distance is equal to the first center distance, i.e., ds=0.1m.
According to the formula (II), the total number N of the upper air distribution holes in the ith upper air distribution hole group of the embodiment can be obtained i The values of (2) are as follows in table 1:
TABLE 1
And then summing to obtain the total number n=131 of the upper air distribution holes on all the annular pipes and the distribution transverse pipes.
The nominal radial cross-sectional area of the lumens of each of the remaining annular tubes, except for the annular tube No. 1, is determined by equation (three):
in the formula (III), sigma i Is the nominal radial sectional area of the inner cavity of the ith annular tube, mu is the flow coefficient of the upper air distribution holes, N is the total amount of all the upper air distribution holes, anda is the radial sectional area of the inner cavity of the transverse distribution pipe, L is the length of the transverse distribution pipe and sigma 1 Is the nominal radial sectional area of the inner cavity of the No. 1 annular pipe, lambda is the on-way resistance coefficient of the pipeline, N 1 The number of the upper air distribution holes in the 1 st upper air distribution hole group.
In this embodiment, the inner diameter of the distribution cross tube is 0.056m, the length L of the cross tube is 0.6m, and the radial sectional area of the inner cavity of the distribution cross tube is A=pi.0.028 2 m 2 Taking the flow coefficient of the air distribution holes as mu=0.65, and the nominal radial sectional area sigma of the inner cavity of the annular pipe corresponding to the air distribution hole group on the No. 1 1 ＝π·0.007 2 m 2 The coefficient of resistance along the way of the pipe is λ=0.032.
According to equation (III), the nominal radial cross-sectional area of the inner cavity of the i-th distributed annular tube of this embodiment can be obtained as shown in Table 2 below:
TABLE 2
The inner diameter of each upper air distribution hole is the same as that of the corresponding lower air distribution hole, and the inner diameters of the upper air distribution holes in the same upper air distribution hole group are not equal; the upper air distribution holes in each upper air distribution hole group are numbered as 1, 2, …, j, j+1, … and N in sequence from the closed end to the distribution transverse tube i -1、N i The inner diameter of the j-th upper hole air distribution hole in the i-th upper air distribution hole group is d ij The inner diameter of the No. 1 upper air distribution hole in the i upper air distribution hole group is d i1 N th i The air distribution holes on the number are positioned on the distribution transverse tube, and the N is the i The inner diameter of the air hole is
Determined by the formula (IV)Is the value of (1):
according to the formula (IV), the N-th air distribution hole group in each upper air distribution hole group of the embodiment can be obtained i The inner diameters of the air holes distributed on the numbers are shown in the following table 3:
TABLE 3 Table 3
| Upper air hole number | Inner diameter (mm) | Upper air hole number | Inner diameter (mm) | Upper air hole number | Inner diameter (mm) |
| 4-1-38 | 1.61 | 4-2-31 | 1.67 | 4-3-25 | 1.76 |
| 4-4-19 | 1.87 | 4-5-12 | 1.96 | 4-6-6 | 2.00 |
In Table 3, the first digit in the upper air hole number represents the category attribute, i.e., 4 represents the upper air hole, the second digit represents the location attribute, and the third digit represents the number, e.g., 4-1-38 represents the 38 th upper air hole in the 1 st upper air hole group, i.e., the N of the first upper air hole group i And air holes are distributed on the number. The numbers of the upper air distribution holes are sequentially carried out from the closed end to the distribution transverse tube.
The radial sectional area of the inner cavity of each annular tube is represented by the formulaDetermining, wherein->Radial sectional area of inner cavity of ith annular tube, sigma i Is the nominal radial cross-section area of the inner cavity of the i-th annular tube,/->N in the ith upper air distribution hole group i The area of the air holes is distributed on the number;
the radial sectional areas of the inner cavities of the i-th distributed annular pipes of this example were obtained as shown in table 4 below:
TABLE 4 Table 4
In table 4, the first digit in the annular tube numbers represents the category, i.e., 3 represents the annular tube, the second digit represents the positional attribute, e.g., 3-1 represents the annular tube No. 1, 3-2 represents the annular tube No. 2, and so on.
In this embodiment, the inner diameter d of the No. 1 upper air distribution hole in each upper air distribution hole group i1 Are each determined to be 0.003m.
Determining the division d from equation (five) i1 、D outside ij The inner diameters of the upper air distribution holes except the No. 1 upper air distribution holes and the upper air distribution holes on the transverse distribution pipes in each upper air distribution hole group are determined by a formula (five):
then, according to the formula (five), the inner diameters of the 37 upper air distribution holes on the No. 1 annular tube can be obtained as shown in the following table 5:
TABLE 5
| Upper air hole number | Inner diameter (mm) | Upper air hole number | Inner diameter (mm) | Upper air hole number | Inner diameter (mm) |
| 4-1-1 | 3.00 | 4-1-2 | 3.01 | 4-1-3 | 3.02 |
| 4-1-4 | 3.03 | 4-1-5 | 3.05 | 4-1-6 | 3.07 |
| 4-1-7 | 3.08 | 4-1-8 | 3.09 | 4-1-9 | 3.10 |
| 4-1-10 | 3.10 | 4-1-11 | 3.09 | 4-1-12 | 3.08 |
| 4-1-13 | 3.05 | 4-1-14 | 3.02 | 4-1-15 | 2.97 |
| 4-1-16 | 2.92 | 4-1-17 | 2.85 | 4-1-18 | 2.79 |
| 4-1-19 | 2.72 | 4-1-20 | 2.65 | 4-1-21 | 2.57 |
| 4-1-22 | 2.50 | 4-1-23 | 2.43 | 4-1-24 | 2.36 |
| 4-1-25 | 2.29 | 4-1-26 | 2.23 | 4-1-27 | 2.17 |
| 4-1-28 | 2.11 | 4-1-29 | 2.05 | 4-1-30 | 2.00 |
| 4-1-31 | 1.95 | 4-1-32 | 1.90 | 4-1-33 | 1.85 |
| 4-1-34 | 1.81 | 4-1-35 | 1.77 | 4-1-36 | 1.73 |
| 4-1-37 | 1.69 | / | / | / | / |
In Table 4, the first digit of the upper air hole numbers represents the category attribute, i.e., 4 represents the upper air hole, the second digit represents the position attribute, and the third digit represents the number, e.g., 4-1-1 represents the 1 st upper air hole on the No. 1 annular tube, 4-1-2 represents the 2 nd upper air hole on the No. 1 annular tube, and the number is the same as the number of each upper air hole in the 1 st upper air hole group.
According to the formula (five), the inner diameters of 30 upper air distribution holes on the No. 2 annular tube are obtained as shown in the following table 6:
TABLE 6
| Upper air hole number | Inner diameter (mm) | Upper air hole number | Inner diameter (mm) | Upper air hole number | Inner diameter (mm) |
| 4-2-1 | 3.00 | 4-2-2 | 3.01 | 4-2-3 | 3.03 |
| 4-2-4 | 3.04 | 4-2-5 | 3.06 | 4-2-6 | 3.08 |
| 4-2-7 | 3.10 | 4-2-8 | 3.12 | 4-2-9 | 3.12 |
| 4-2-10 | 3.12 | 4-2-11 | 3.10 | 4-2-12 | 3.07 |
| 4-2-13 | 3.03 | 4-2-14 | 2.97 | 4-2-15 | 2.91 |
| 4-2-16 | 2.83 | 4-2-17 | 2.75 | 4-2-18 | 2.67 |
| 4-2-19 | 2.59 | 4-2-20 | 2.51 | 4-2-21 | 2.42 |
| 4-2-22 | 2.35 | 4-2-23 | 2.27 | 4-2-24 | 2.20 |
| 4-2-25 | 2.13 | 4-2-26 | 2.07 | 4-2-27 | 2.01 |
| 4-2-28 | 1.95 | 4-2-29 | 1.89 | 4-2-30 | 1.84 |
In table 6, the first digit of the upper air hole numbers represents the category attribute, i.e., 4 represents the upper air hole, the second digit represents the position attribute, and the third digit represents the number, e.g., 4-2-1 represents the 1 st upper air hole on the 2 nd annular tube, 4-2-2 represents the 2 nd upper air hole on the 2 nd annular tube, and the number is the same as the number of each upper air hole in the 2 nd upper air hole group.
Then, according to the formula (five), the inner diameters of the 24 upper air distribution holes on the No. 3 annular tube can be obtained as shown in the following table 7:
TABLE 7
| Upper air hole number | Inner diameter (mm) | Upper air hole number | Inner diameter (mm) | Upper air hole number | Inner diameter (mm) |
| 4-3-1 | 3.00 | 4-3-2 | 3.01 | 4-3-3 | 3.03 |
| 4-3-4 | 3.06 | 4-3-5 | 3.08 | 4-3-6 | 3.11 |
| 4-3-7 | 3.13 | 4-3-8 | 3.14 | 4-3-9 | 3.14 |
| 4-3-10 | 3.12 | 4-3-11 | 3.09 | 4-3-12 | 3.05 |
| 4-3-13 | 2.99 | 4-3-14 | 2.91 | 4-3-15 | 2.83 |
| 4-3-16 | 2.74 | 4-3-17 | 2.64 | 4-3-18 | 2.55 |
| 4-3-19 | 2.46 | 4-3-20 | 2.37 | 4-3-21 | 2.28 |
| 4-3-22 | 2.20 | 4-3-23 | 2.13 | 4-3-24 | 2.06 |
In Table 7, the first digit of the upper air hole numbers represents the category attribute, i.e., 4 represents the upper air hole, the second digit represents the position attribute, and the third digit represents the number, e.g., 4-3-1 represents the 1 st upper air hole on the No. 3 annular tube, 4-3-2 represents the 2 nd upper air hole on the No. 3 annular tube, and the number is the same as the number of each upper air hole in the 3 rd upper air hole group.
Then, according to the formula (five), the inner diameters of the 18 upper air distribution holes on the No. 4 annular tube can be obtained as shown in the following table 8:
TABLE 8
| Upper air hole number | Inner diameter (mm) | Upper air hole number | Inner diameter (mm) | Upper air hole number | Inner diameter (mm) |
| 4-4-1 | 3.00 | 4-4-2 | 3.02 | 4-4-3 | 3.04 |
| 4-4-4 | 3.08 | 4-4-5 | 3.11 | 4-4-6 | 3.14 |
| 4-4-7 | 3.16 | 4-4-8 | 3.17 | 4-4-9 | 3.16 |
| 4-4-10 | 3.13 | 4-4-11 | 3.07 | 4-4-12 | 2.99 |
| 4-4-13 | 2.89 | 4-4-14 | 2.79 | 4-4-15 | 2.68 |
| 4-4-16 | 2.57 | 4-4-17 | 2.46 | 4-4-18 | 2.35 |
In Table 8, the first digit of the upper air hole numbers represents the category attribute, i.e., 4 represents the upper air hole, the second digit represents the position attribute, and the third digit represents the number, e.g., 4-4-1 represents the 1 st upper air hole on the 4 th annular tube, 4-4-2 represents the 2 nd upper air hole on the 4 th annular tube, and the number is the same as the number of each upper air hole in the 4 th upper air hole group.
Then, according to the formula (five), the inner diameters of the 11 upper air distribution holes on the No. 5 annular tube can be obtained as shown in the following table 9:
TABLE 9
| Upper air hole number | Inner diameter (mm) | Upper air hole number | Inner diameter (mm) | Upper air hole number | Inner diameter (mm) |
| 4-5-1 | 3.00 | 4-5-2 | 3.04 | 4-5-3 | 3.10 |
| 4-5-4 | 3.17 | 4-5-5 | 3.23 | 4-5-6 | 3.28 |
| 4-5-7 | 3.29 | 4-5-8 | 3.25 | 4-5-9 | 3.15 |
| 4-5-10 | 3.00 | 4-5-11 | 2.83 | / | / |
In Table 9, the first digit of the upper air hole numbers represents the category attribute, i.e., 4 represents the upper air hole, the second digit represents the position attribute, and the third digit represents the number, e.g., 4-5-1 represents the 1 st upper air hole on the No. 5 annular tube, 4-5-2 represents the 2 nd upper air hole on the No. 5 annular tube, and the number is the same as the number of each upper air hole in the 5 th upper air hole group.
Then, according to the formula (five), the inner diameters of 5 upper air distribution holes on the No. 6 annular tube can be obtained as shown in the following table 10:
table 10
| Upper air hole number | Inner diameter (mm) | Upper air hole number | Inner diameter (mm) | Upper air hole number | Inner diameter (mm) |
| 4-6-1 | 3.00 | 4-6-2 | 3.19 | 4-6-3 | 3.51 |
| 4-6-4 | 3.98 | 4-6-5 | 4.26 | / | / |
In Table 10, the first digit of the upper air hole numbers represents the category attribute, i.e., 4 represents the upper air hole, the second digit represents the position attribute, and the third digit represents the number, e.g., 4-6-1 represents the 1 st upper air hole on the 6 th annular tube, 4-6-2 represents the 2 nd upper air hole on the 6 th annular tube, and the number is the same as the number of each upper air hole in the 6 th upper air hole group.
In order to examine the effect of the embodiment, a control example was set. The comparative example does not consider the change of the inner diameter of the air distribution holes, and the inner diameters of all the air distribution holes are equal to the inner diameter of the air distribution holes on No. 1 of each annular pipe, namely, 0.003m.
The above data are simulated and analyzed by ANSYS FLUENT software to obtain the comparative example and the embodiment of the invention, and the statistical analysis of the chlorine flow of the air distribution holes is shown in FIG. 3, and the average volume flow of the total 262 air distribution holes of the comparative example and the embodiment of the invention is basically consistent because the air transmission rate of the air transmission vertical pipes of the comparative example and the embodiment of the invention is set to 2m/s, and the standard deviation of the chlorine volume flow of the 262 air distribution holes of the comparative example is 13.65cm under the premise 3 Per s, the standard deviation of the chlorine volume flow of the 262 gas distribution holes of the inventive example was 1.17cm 3 And/s, the standard deviation is reduced by 11.67 times. Correspondingly, the minimum value and the maximum value of the chlorine volume flow of the air distribution holes in the comparative example are 3.84cm respectively 3 /s and 78.05cm 3 S, while the minimum and maximum of the chlorine volume flow of the gas distribution holes in the shaft according to the embodiment of the inventionThe values are 16.42cm respectively 3 S and 21.89cm 3 And/s. Therefore, according to the method provided by the invention, the chlorine gas outlet flow of each gas distribution hole is relatively close by accurately calculating the inner diameter cross section area of the annular pipe and the inner diameter of the gas distribution hole, and the chlorine gas is relatively uniformly distributed in the production equipment by combining the uniformity of the gas distribution hole positions, so that the chlorine gas distribution effect meets the production and use requirements and the performance requirements of reaction products.
Claims (8)
1. The chlorine distributor for the chlorination reaction kettle is characterized by comprising a vertical gas transmission vertical pipe and a horizontal distribution horizontal pipe, wherein the vertical gas transmission vertical pipe and the horizontal distribution horizontal pipe are mutually communicated, one end of the horizontal distribution horizontal pipe is connected to the top of the vertical gas transmission vertical pipe, a plurality of annular pipes which are coaxially arranged are arranged on the horizontal distribution horizontal pipe, the annular pipes are horizontally arranged, the annular pipes are uniformly spaced, two ends of each annular pipe are respectively formed into a gas transmission end and a closed end, the gas transmission end is communicated with the horizontal distribution pipe, and gas distribution holes are formed in the annular pipes and the horizontal distribution pipe; the chlorination reaction kettle is provided with a cylindrical kettle body extending along the vertical direction, and the chlorine distributor is positioned in the kettle body;
the number of the annular pipes and the inner diameter of the kettle body are in accordance with the formula (I),
in formula (one): d (D) 0 Is the inner diameter of the kettle body of the chlorination reaction kettle, d 0 Is the first center distance of the pipe bodies of the adjacent annular pipes, N 0 The number of the annular pipes;
the air distribution holes comprise upper air distribution holes and lower air distribution holes, wherein the upper air distribution holes are arranged on the upper sides of the annular pipe and the distribution transverse pipe, the lower air distribution holes are arranged on the lower sides of the annular pipe and the distribution transverse pipe, the upper air distribution holes and the lower air distribution holes are in one-to-one correspondence, and in the vertical direction, the corresponding upper air distribution holes and the lower air distribution holes are vertically opposite;
corresponding to each annular pipe, only one upper air distribution hole and one lower air distribution hole are formed in the transverse distribution pipe; the upper air distribution holes on each annular pipe and the corresponding upper air distribution holes on the distribution transverse pipes form an upper air distribution hole group;
in the same upper air distribution hole group, the second center distance between adjacent upper air distribution holes is equal, the second center distance is equal to the first center distance between the pipe bodies of adjacent annular pipes, and the number of the upper air distribution holes in each upper air distribution hole group is determined by a formula (II):
in the formula (II): ds is the second center distance between adjacent upper air distribution holes in the same group of upper air distribution holes; the serial numbers of the annular pipes are 1, 2, …, i, i+1, … and N in sequence along the radial direction of the kettle body from outside to inside 0 The upper air distribution hole group formed by the upper air distribution holes on the ith annular tube and the upper air distribution holes on the corresponding distribution transverse tube is called an ith upper air distribution hole group, N i The total number of upper air distribution holes in the ith upper air distribution hole group.
2. The chlorine distributor as defined in claim 1,
the nominal radial cross-sectional area of the lumens of each of the remaining annular tubes, except for the annular tube No. 1, is determined by equation (three):
in formula (III): sigma (sigma) i A nominal radial cross-sectional area of the inner cavity of the i-th annular tube; mu is the flow coefficient of the air distribution hole, and the value of mu is 0.55-0.75; n is the total amount of all upper air distribution holes, anda is the radial sectional area of the inner cavity of the transverse distribution pipe; l is the length of the distributed transverse tube; sigma (sigma) 1 Is the nominal radial sectional area sigma of the inner cavity of the No. 1 annular tube 1 The value of (2) is 25 pi mm 2 ～225πmm 2 The method comprises the steps of carrying out a first treatment on the surface of the Lambda is the on-way resistance coefficient of the pipeline, and the value of lambda is 0.02-0.04; n (N) 1 The number of the upper air distribution holes in the 1 st upper air distribution hole group;
each upper air distribution hole has the same inner diameter as the corresponding lower air distribution hole, and the upper air distribution holes in each upper air distribution hole group are numbered as 1, 2, …, j, j+1, … and N in sequence from the closed end to the distribution horizontal pipe i -1、N i The inner diameter of the j-th upper hole air distribution hole in the i-th upper air distribution hole group is d ij The inner diameter of the No. 1 upper air distribution hole in the i upper air distribution hole group is d i1 The inner diameters of the No. 1 upper air distribution holes in each upper air distribution hole group are equal, d i1 The value of (2) is 1 mm-5 mm, the N is the th i The air distribution holes on the number are positioned on the distribution transverse tube, and the N is the i The inner diameter of the air hole is
The value of (c) is determined by equation (c):
the radial sectional area of the inner cavity of each annular tube is represented by the formulaDetermining, wherein σ id Is the radial sectional area of the inner cavity of the ith annular tube, +.>N in the ith upper air distribution hole group i The area of the air holes is distributed on the number;
determining the division d from equation (five) i1 Andd outside ij Is used as a reference to the value of (a),
3. the chlorine distributor as defined in claim 1,
all the upper air distribution holes in at least one upper air distribution hole group are positioned on the same virtual circle.
4. A chlorine distributor as claimed in any of claims 1 to 3,
each annular pipe is positioned in the same horizontal plane, and each annular pipe is positioned in the middle position of the set liquid level height in the chlorination reaction kettle.
5. The chlorine distribution method for the chlorination reaction kettle is characterized in that the chlorination reaction kettle is provided with a cylindrical kettle body extending along the vertical direction, a chlorine distributor is arranged in the kettle body, the chlorine distributor comprises a vertical gas transmission vertical pipe extending along the vertical direction and a horizontal distribution horizontal pipe extending along the horizontal direction, one end of the horizontal distribution pipe is connected to the top of the vertical gas transmission vertical pipe, a plurality of coaxially arranged annular pipes are arranged on the horizontal distribution pipe, the annular pipes are horizontally arranged, the annular pipes are equidistantly arranged, two ends of each annular pipe are respectively formed into a gas transmission end and a closed end, wherein the gas transmission end is communicated with the horizontal distribution pipe, air distribution holes are formed in the annular pipes and the horizontal distribution pipe, and chlorine enters into the annular pipes through the gas transmission vertical pipe and the horizontal distribution pipe and is sprayed out through the air distribution holes;
the number of the annular pipes and the inner diameter of the kettle body are in accordance with the formula (I),
in formula (one): d (D) 0 Is the inner diameter of the kettle body of the chlorination reaction kettle, d 0 Is the first center distance of the pipe bodies of the adjacent annular pipes, N 0 The number of the annular pipes;
the air distribution holes comprise upper air distribution holes and lower air distribution holes, wherein the upper air distribution holes are arranged on the upper sides of the annular pipe and the distribution transverse pipe, the lower air distribution holes are arranged on the lower sides of the annular pipe and the distribution transverse pipe, the upper air distribution holes and the lower air distribution holes are in one-to-one correspondence, and in the vertical direction, the corresponding upper air distribution holes and the lower air distribution holes are vertically opposite;
corresponding to each annular pipe, only one upper air distribution hole and one lower air distribution hole are formed in the transverse distribution pipe; the upper air distribution holes on each annular pipe and the corresponding upper air distribution holes on the distribution transverse pipes form an upper air distribution hole group;
in the same upper air distribution hole group, the second center distance between adjacent upper air distribution holes is equal, the second center distance is equal to the first center distance between the pipe bodies of adjacent annular pipes, and the number of the upper air distribution holes in each upper air distribution hole group is determined by a formula (II):
in the formula (II): ds is the second center distance between adjacent upper air distribution holes in the same group of upper air distribution holes; the serial numbers of the annular pipes are 1, 2, …, i, i+1, … and N in sequence along the radial direction of the kettle body from outside to inside 0 The upper air distribution hole group formed by the upper air distribution holes on the ith annular tube and the upper air distribution holes on the corresponding distribution transverse tube is called an ith upper air distribution hole group, N i The total number of upper air distribution holes in the ith upper air distribution hole group.
6. The chlorine gas distribution method according to claim 5,
the nominal radial cross-sectional area of the lumens of each of the remaining annular tubes, except for the annular tube No. 1, is determined by equation (three):
in formula (III): sigma (sigma) i A nominal radial cross-sectional area of the inner cavity of the i-th annular tube; mu is the flow coefficient of the air distribution hole, and the value of mu is 0.55-0.75; n is the total amount of all upper air distribution holes, anda is the radial sectional area of the inner cavity of the transverse distribution pipe; l is the length of the distributed transverse tube; sigma (sigma) 1 Is the nominal radial sectional area sigma of the inner cavity of the No. 1 annular tube 1 The value of (2) is 25 pi mm 2 ～225πmm 2 The method comprises the steps of carrying out a first treatment on the surface of the Lambda is the on-way resistance coefficient of the pipeline, and the value of lambda is 0.02-0.04; n (N) 1 The number of the upper air distribution holes in the 1 st upper air distribution hole group;
each upper air distribution hole has the same inner diameter as the corresponding lower air distribution hole, and the upper air distribution holes in each upper air distribution hole group are numbered as 1, 2, …, j, j+1, … and N in sequence from the closed end to the distribution horizontal pipe i -1、N i The inner diameter of the j-th upper hole air distribution hole in the i-th upper air distribution hole group is d ij The inner diameter of the No. 1 upper air distribution hole in the i upper air distribution hole group is d i1 The inner diameters of the No. 1 upper air distribution holes in each upper air distribution hole group are equal, d i1 The value of (2) is 1 mm-5 mm, the N is the th i The air distribution holes on the number are positioned on the distribution transverse tube, and the N is the i The inner diameter of the air hole is
The value of (c) is determined by equation (c):
the inner cavity of each annular tubeIs represented by the formulaDetermining, wherein σ id Is the radial sectional area of the inner cavity of the ith annular tube, +.>N in the ith upper air distribution hole group i The area of the air holes is distributed on the number;
determining the division d from equation (five) i1 Andd outside ij Is used as a reference to the value of (a),
7. the chlorine gas distribution method according to claim 5,
all the upper air distribution holes in at least one upper air distribution hole group are positioned on the same virtual circle.
8. The method for chlorine distribution as defined in any one of claims 5 to 7, wherein the chlorine distributor,
each annular pipe is positioned in the same horizontal plane, and each annular pipe is positioned in the middle position of the set liquid level height in the chlorination reaction kettle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210900288.2A CN115193347B (en) | 2022-07-28 | 2022-07-28 | Chlorine distributor and chlorine distribution method for chlorination reaction kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210900288.2A CN115193347B (en) | 2022-07-28 | 2022-07-28 | Chlorine distributor and chlorine distribution method for chlorination reaction kettle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115193347A CN115193347A (en) | 2022-10-18 |
| CN115193347B true CN115193347B (en) | 2024-04-02 |
Family
ID=83583234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210900288.2A Active CN115193347B (en) | 2022-07-28 | 2022-07-28 | Chlorine distributor and chlorine distribution method for chlorination reaction kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115193347B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117046404B (en) * | 2023-10-10 | 2024-01-09 | 常熟理工学院 | Chlorine gas distribution device and method of chlorination reactor |
| CN118164954B (en) * | 2024-03-13 | 2024-09-27 | 江苏蒙博生物工程科技有限公司 | Fluorescent probe based on 10-hydroxybenzo [ h ] quinoline fluorescent parent nucleus, preparation method and application |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4049385A (en) * | 1972-12-22 | 1977-09-20 | Kernforschungsanlage Julich Gesellschaft Mit Beschrankter Haftung | Apparatus for carrying out chlorinating reactions |
| US5409674A (en) * | 1993-04-14 | 1995-04-25 | Metallgesellschaft Aktiengesellschaft | Reactor for preparing chlorine dioxide by reacting alkali chlorate with acid |
| WO2005094979A1 (en) * | 2004-04-02 | 2005-10-13 | Statoil Asa | Slurry bubble column reactor |
| CN202683173U (en) * | 2012-05-31 | 2013-01-23 | 安徽星鑫化工科技有限公司 | Chlorine gas distributor for chlorination reaction kettle |
| CN112844253A (en) * | 2021-02-24 | 2021-05-28 | 江苏新河农用化工有限公司 | Fluidized bed chlorine gas distributor for chlorothalonil production and use method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005080272A1 (en) * | 2004-02-23 | 2005-09-01 | Toho Titanium Co., Ltd. | Apparatus for metal chloride production |
-
2022
- 2022-07-28 CN CN202210900288.2A patent/CN115193347B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4049385A (en) * | 1972-12-22 | 1977-09-20 | Kernforschungsanlage Julich Gesellschaft Mit Beschrankter Haftung | Apparatus for carrying out chlorinating reactions |
| US5409674A (en) * | 1993-04-14 | 1995-04-25 | Metallgesellschaft Aktiengesellschaft | Reactor for preparing chlorine dioxide by reacting alkali chlorate with acid |
| WO2005094979A1 (en) * | 2004-04-02 | 2005-10-13 | Statoil Asa | Slurry bubble column reactor |
| CN202683173U (en) * | 2012-05-31 | 2013-01-23 | 安徽星鑫化工科技有限公司 | Chlorine gas distributor for chlorination reaction kettle |
| CN112844253A (en) * | 2021-02-24 | 2021-05-28 | 江苏新河农用化工有限公司 | Fluidized bed chlorine gas distributor for chlorothalonil production and use method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 氯气氯化工艺过程自动控制方案研究;葛秀坤 等;工业安全与环保;第37卷(第8期);第9-11页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115193347A (en) | 2022-10-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115193347B (en) | Chlorine distributor and chlorine distribution method for chlorination reaction kettle | |
| JP6114995B2 (en) | Refrigerant distributor and heat exchanger provided with the refrigerant distributor | |
| US20140306027A1 (en) | Showerhead of a mocvd reactor with large diameter | |
| CN209490803U (en) | A kind of horizontal efficient plug flow bubbling reactor | |
| CN105903424A (en) | Multilayer falling pipe type falling film devolatilization reactor | |
| KR20170047242A (en) | Reactor with baffle configuration | |
| TW202311559A (en) | Gas injection device of semiconductor heat treatment equipment and semiconductor heat treatment equipment | |
| CN203577760U (en) | Novel gas distributor | |
| CN207941489U (en) | A kind of gas distributor | |
| JP2014147925A (en) | Multitubular reactor | |
| CN202322675U (en) | 2-acrylamide-2-methylacrylsulfonate continuous synthesis reaction device | |
| TW202138053A (en) | Fluidized bed reactor, heat removal water pipe and application of heat removal water pipe in acrylonitrile manufacturing | |
| CN104389033A (en) | Temperature control box for dry spinning of elastic fibers | |
| CN207247978U (en) | A kind of multi-stage annular distributor suitable for heat-pipe heat exchanger | |
| CN213515172U (en) | Heat exchanger with multiple flow paths | |
| CN111397405A (en) | Vapor-liquid two-phase flow heat exchange tube | |
| CN215877955U (en) | N, N-dimethylacetamide synthesis system | |
| CN117046404B (en) | Chlorine gas distribution device and method of chlorination reactor | |
| CN213434492U (en) | Reaction assembly and reactor with same | |
| CN202169169U (en) | Outer coil pipe structure for reaction kettle | |
| CN215196858U (en) | Novel distributor of acrylonitrile device reactor | |
| CN213467760U (en) | Converter for chloroethylene synthesis | |
| CN209752638U (en) | Gas mixing device and coating system | |
| CN214553389U (en) | Distributor and gas-liquid phase tubular reactor | |
| CN220004021U (en) | Oximation reation kettle |
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 |