CN210795766U - Nicotinic acid tower and flow equalizing type acid distributor thereof - Google Patents
Nicotinic acid tower and flow equalizing type acid distributor thereof Download PDFInfo
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- CN210795766U CN210795766U CN201921331045.1U CN201921331045U CN210795766U CN 210795766 U CN210795766 U CN 210795766U CN 201921331045 U CN201921331045 U CN 201921331045U CN 210795766 U CN210795766 U CN 210795766U
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- 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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model discloses a nicotinic acid tower and type of flow equalizing divides sour ware thereof, including the acid inlet pipe that feeds through in proper order, two at least shunt tubes, two at least branch acid house steward and a plurality of branch acid branch pipes divide sour branch pipe, a plurality of branch acid branch pipes set up perpendicularly in the acid inlet house steward and are connected in the both sides of dividing sour house steward, the lower part of each branch acid branch pipe all is equipped with a plurality of acid outlets, the acid pump of acid inlet pipe and nicotinic acid tower lower part is connected, the one end that is connected with the shunt tubes of acid inlet pipe is less than the acid inlet on the shunt tubes, so that each shunt tubes is gone into to. According to the arrangement, the acid liquor is pumped into the acid inlet pipe, and when the acid liquor flows from bottom to top, the acid liquor uniformly flows to the acid distributing main pipe through each flow dividing pipe, so that the effects of simplicity, high efficiency, energy conservation and cost reduction are achieved, and the problem that the existing mode for achieving voltage and current balancing and stabilizing is achieved by using two or three pre-distributors is solved, each pre-distributor comprises an eccentric flow adjusting pipe, a flow slowing tee, flow dividing pipes and the like, the structure is complex, and the cost is high; the flow of the acid liquor flowing from the acid inlet pipe to each shunt pipe is not uniform.
Description
Technical Field
The utility model relates to a sulphuric acid production facility technical field, more specifically say, relate to a nicotinic acid tower and type of flow equalizing divides sour ware thereof.
Background
The acid distributor is a tower internal fitting which is arranged on the upper part of the packing and uniformly distributes acid to the surface of the packing. The acid distributor plays a very important role in various acid making industries and has the function of uniformly distributing acid on the filler. The flue gas entering counter-currently with the acid is absorbed by sulfur trioxide after contact with the acid. The full sulfur trioxide absorption is very important to the performance of the tower and is an important function of uniform acid splitting, which can cause such things as excessive acid mist entrainment and short circuiting of sulfur trioxide in the tower, leading to emission standards being exceeded and excessive corrosion of downstream equipment. At present, the mode of realizing voltage-sharing and current-stabilizing is realized by using two-way or three-way pre-distributors. The pre-distributor is realized by an eccentric flow adjusting pipe, a slow flow tee joint, a flow dividing pipe and the like, and has complex structure and high cost. Acid liquor is pumped into the shunt tubes from the acid inlet tube from top to bottom, and due to uncertain factors such as uneven voltage, the amount of sediments in the tubes and the like, the shunt of the acid liquor is uneven.
Therefore, how to solve the problem that the current mode of realizing voltage and current sharing is realized by using two or three pre-distributors, each pre-distributor comprises an eccentric flow regulating pipe, a flow slowing tee joint, a flow dividing pipe and the like, and has a complex structure and high cost; the problem of uneven flow of the acid liquid from the acid inlet pipe to each shunt pipe is an important technical problem to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a nicotinic acid tower and a flow equalizing type acid distributor thereof, which are realized by a two-way or three-way pre-distributor in order to solve the problem that the current mode of realizing the pressure equalizing and the flow stabilizing is realized, the pre-distributor comprises an eccentric flow adjusting pipe, a slow flow tee, a flow dividing pipe and the like, and has complex structure and high cost; the flow of the acid liquor flowing from the acid inlet pipe to each shunt pipe is not uniform.
The utility model aims at realizing through the following technical scheme:
the utility model provides a type of flow equalizing divides sour ware, is including the acid inlet pipe, two at least shunt tubes, two at least branch acid header pipes and a plurality of branch acid branch pipes that communicate in proper order, a plurality of branch acid branch pipe set up perpendicularly in divide sour header pipe and connect in divide the both sides of sour header pipe, each divide sour header pipe parallel and symmetric distribution to be in by a plurality of on the circular face that branch acid branch pipe is constituteed, each the lower part of branch acid branch pipe all is equipped with a plurality of sour holes, each sour hole edge of branch acid branch pipe's length direction equidistance distributes, the acid inlet department of acid inlet pipe is connected with the acid pump, the acid inlet pipe with the one end that the shunt tube is connected is less than acid inlet on the shunt tube, so that acidizing fluid from bottom to top even pump into each the shunt tube.
Preferably, a flow stabilizing box is arranged between the acid inlet pipe and the flow dividing pipe, the acid inlet pipe is communicated with the bottom of the flow stabilizing box, and the flow dividing pipe is communicated with the top of the flow stabilizing box.
Preferably, one end of the acid inlet pipe connected with the flow stabilizing box is lower than the acid inlet of the acid inlet pipe.
Preferably, the shunt tubes are four, are respectively connected in the week side at stationary flow box top, divide the acid house steward to be two, every divide and connect two on the acid house steward the shunt tubes.
Preferably, the shunt tubes are arranged in two rows, wherein the second row of shunt tubes is arranged below the first row of shunt tubes, and the diameter of the first row of shunt tubes is larger than that of the second row of shunt tubes.
Preferably, the diameter of the circular surface consisting of a plurality of the acid separating branch pipes is less than or equal to 3500 mm.
Preferably, each acid distributing branch pipe is connected to the acid distributing main pipe in equal height, so that the heights of the acid outlet holes are the same.
Preferably, the height of the flow stabilizing box is 650 mm-1250 mm.
Preferably, the acid inlet pipe, the shunt pipe, the acid diversion header pipe and the acid diversion branch pipe are all made of corrosion-resistant alloy.
A nicotinic acid tower comprising the flow-equalizing acid distributor as described in any one of the above.
The utility model provides an among the technical scheme, a type of flow equalizing divides sour ware, including the acid inlet pipe that feeds through in proper order, two at least shunt tubes, two at least branch acid house steward and a plurality of branch acid branch pipes, a plurality of branch acid branch pipes set up perpendicularly in the acid inlet house steward and are connected in the both sides of branch acid house steward, each branch acid house steward parallel and symmetric distribution are on the circular face of compriseing a plurality of branch acid branch pipes, each lower part of dividing the acid branch pipe all is equipped with a plurality of sour holes, each sour hole of saying distributes along the length direction equidistance of branch acid branch pipe of saying, the acid inlet department of acid inlet pipe is connected with the acid pump, the one end that is connected with the shunt tubes of acid inlet pipe is less than the acid inlet on the shunt tubes, so that the. According to the arrangement, the acid liquor is pumped into the acid inlet pipe by the acid pump, when the acid liquor flows from bottom to top, the acid liquor is influenced by gravity, under the condition of a certain height, the pressure of the acid liquor flowing out of the acid inlet of each flow dividing pipe is the same, the flow rate of the acid liquor is the same, the acid liquor uniformly flows to the acid dividing main pipe from each flow dividing pipe, then uniformly flows to the acid dividing branch pipes and finally is uniformly discharged from the acid outlet hole, the method is simpler, more efficient and energy-saving, and the cost is reduced to the maximum extent, so that the problem that the conventional method for realizing the pressure and flow equalization and stabilization is realized by using a two-way or three-way pre-distributor is solved, and the pre-distributor consists of an eccentric flow adjusting pipe, a slow flow tee; the flow of the acid liquor flowing from the acid inlet pipe to each shunt pipe is not uniform.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of a uniform flow type acid distributor according to an embodiment of the present invention;
fig. 2 is a top view of the flow equalizing acid distributor according to the embodiment of the present invention.
In FIGS. 1 to 2:
1-acid inlet pipe, 2-shunt pipe, 3-acid shunt main pipe, 4-acid shunt branch pipe, 5-acid outlet hole and 6-flow stabilizing box.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The purpose of the present embodiment is to provide a current-sharing acid distributor, which solves the problem that the current voltage-sharing and current-stabilizing method is realized by using two or three pre-distributors, each pre-distributor is composed of an eccentric flow-regulating pipe, a flow-slowing tee, a flow-dividing pipe, etc., and has a complex structure and high cost; the flow of the acid liquor flowing from the acid inlet pipe to each shunt pipe is not uniform.
Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.
Referring to fig. 1 to 2, the present embodiment provides a flow equalizing acid distributor, which includes an acid inlet pipe 1, at least two flow dividing pipes 2, at least two acid distributing main pipes 3, and a plurality of acid distributing branch pipes 4, which are sequentially connected, wherein each of the acid inlet pipe 1, the flow dividing pipes 2, the acid distributing main pipes 3, and the acid distributing branch pipes 4 are fixedly connected by bolts. A plurality of branch acid pipes 4 set up perpendicularly in branch acid house steward 3 and connect in each branch acid house steward 3 both sides, pass through bolted connection between the corresponding branch acid pipe 4 between two adjacent branch acid house steward 3, each branch acid house steward 3 is parallel and symmetric distribution on the circular surface of compriseing a plurality of branch acid pipes 4, each lower part of branch acid pipe 4 all is equipped with a plurality of sour holes 5, each sour hole 5 distributes along the length direction equidistance of branch acid pipe 4, make the pressure and the velocity of flow of each sour hole 5 department acidizing fluid the same, thereby guarantee to divide sour even. The acid inlet of the acid inlet pipe 1 is connected with an acid pump positioned at the lower part of the nicotinic acid tower, one end of the acid inlet pipe 1 connected with the shunt pipes 2 is lower than the acid inlet on the shunt pipes 2, so that the acid liquid is uniformly pumped into each shunt pipe 2 from bottom to top, the acid liquid is influenced by the gravity when flowing from bottom to top, under the condition of a certain height, the pressure and the flow of the acid liquid flowing out of the acid inlet of each shunt pipe 2 are the same, and the acid liquid uniformly flows to the acid main pipe 3 from each shunt pipe 2, further flows to the acid branch pipes 4, and finally uniformly flows out of the acid outlet holes 5. By the arrangement, the structures of the pre-distributor such as an eccentric flow adjusting pipe and a slow flow tee joint in the existing acid distributor are removed, the materials are saved, and the cost is reduced to the maximum extent.
As an optional implementation manner, in the embodiment of the present invention, a steady flow box 6 is disposed between the acid inlet pipe 1 and the shunt pipe 2, the acid inlet pipe 1 is communicated with the bottom of the steady flow box 6, and the shunt pipe 2 is communicated with the top of the steady flow box 6. The shunt pipe 2 consists of a straight pipe which is horizontally arranged and is connected with the steady flow box 6, a straight pipe which is vertically arranged and is connected with the acid diversion header pipe 3 and an elbow. After being injected into the flow stabilizing box 6 from the bottom, the acid liquid flows to the acid distributing main pipe 3 from the acid inlet of each horizontal flow distributing pipe 2 uniformly under the action of gravity. The acid liquor can be accumulated in the flow stabilizing box 6 for a certain volume to flow to each shunt tube 2 more uniformly.
Because the top of the nicotinic acid tower is provided with the touch panel, the position of the acid inlet pipe 1 is generally fixed, if the top of the steady flow box 6 is too high, the touch panel can be jacked, in order to ensure that the steady flow box 6 has a certain height and the top can not touch the touch panel, the acid inlet pipe 1 is provided with an elbow, and one end of the acid inlet pipe 1 connected with the steady flow box 6 is lower than the acid inlet of the acid inlet pipe 1.
In some embodiments, four shunt tubes 2 are symmetrically connected to the periphery of the top of the flow stabilizing box 6, two acid distributing main tubes 3 are provided, and two shunt tubes 2 are communicated with each acid distributing main tube 3.
In the preferred scheme of this embodiment, the shunt tubes 2 are two rows, wherein the first row of shunt tubes 2 is connected to the top of the flow stabilizing box 6, the second row of shunt tubes 2 is connected to the middle of the flow stabilizing box 6, the number of the first row of shunt tubes 2 and the number of the second row of shunt tubes 2 are four, the diameter of the first row of shunt tubes 2 is greater than that of the second row of shunt tubes 2, so that the acid liquor flow rates of each of the first row of shunt tubes 2 and each of the second row of shunt tubes 2 are the same.
As an alternative embodiment, the diameter of the circular surface formed by the plurality of acid distributing branch pipes 4 is less than or equal to 3500 mm, in the prior art, the acid distributor of the nicotinic acid tower with the diameter less than 3500 mm is not designed for flow equalization, but the acid distributor of the present application is still designed for flow equalization when the diameter is less than or equal to 3500 mm.
The acid distribution branch pipes 4 are connected to the acid distribution header pipe 3 at the same height so that the acid outlet holes 5 have the same height.
The height of the flow stabilizing box 6 is 650 mm to 1250 mm, preferably 900 mm. The acid inlet pipe 1, the shunt pipe 2, the acid distributing main pipe 3 and the acid distributing branch pipe 4 are all made of corrosion-resistant alloy, such as: HT, K alloy, 304, XDS alloy, RTCr2, LSB-2, RTCr16, RTSi5, RTSi15, RQTAl22, 2205, S801, 904L, SS920, RQTSi4, RQTSi4Mo, RQTSi5, RQTAl4Si4 and RQTAl5Si 5.
The embodiment also provides a nicotinic acid tower, which comprises the flow-equalizing acid distributor. The inner wall of the upper part of the nicotinic acid tower is provided with a convex ceramic tile along the horizontal direction, and an acid distributing main pipe 3 of the flow equalizing type acid distributor is arranged on the ceramic tile.
It should be noted that, devices or components with different functions in the above embodiments may be combined, for example, the uniform flow type acid separator in this embodiment includes an acid inlet pipe 1, a steady flow box 6, at least two flow dividing pipes 2, at least two acid dividing main pipes 3, and a plurality of acid dividing branch pipes 4, which are sequentially connected, the plurality of acid dividing branch pipes 4 are vertically disposed on the acid dividing main pipe 3 and connected to two sides of the acid dividing main pipe 3, each acid dividing main pipe 3 is parallel and symmetrically distributed on a circular surface formed by the plurality of acid dividing branch pipes 4, and a diameter of the circular surface is less than or equal to 3500 mm. The lower part of each acid distributing branch pipe 4 is provided with a plurality of acid outlet holes 5, and the acid outlet holes 5 are distributed at equal intervals along the length direction of the acid distributing branch pipes 4 so as to ensure that the acid outlet holes 5 are uniform. The acid distributing branch pipes 4 are connected with the acid distributing main pipe 3 at the same height, so that the heights of the acid outlet holes 5 are the same. An acid pump is connected to the acid inlet of the acid inlet pipe 1, the acid inlet pipe 1 is communicated with the bottom of the steady flow box 6, the shunt pipes 2 are communicated with the top of the steady flow box 6, acid liquor is injected into the steady flow box 6 from the bottom and then uniformly flows from the acid inlets of the shunt pipes 2 in all horizontal directions to the acid shunt main pipe 3 from bottom to top, one end of the acid inlet pipe 1 connected with the steady flow box 6 is lower than the acid inlet of the acid inlet pipe 1, and an acid feeding pipe is arranged between the acid pump and the acid inlet pipe 1. The four shunt tubes 2 are preferably selected and are respectively symmetrically connected to the periphery of the top of the flow stabilizing box 6, the number of the acid distributing main tubes 3 is two, and each acid distributing main tube 3 is communicated with two shunt tubes 2; in another preferred embodiment, the number of shunt tubes 2 is two, wherein the second row of shunt tubes 2 is disposed below the first row of shunt tubes 2, and the diameter of the first row of shunt tubes 2 is greater than the diameter of the second row of shunt tubes 2. The height of the flow stabilizing box 6 is 650 mm-1250 mm. The acid inlet pipe 1, the shunt pipe 2, the acid distributing main pipe 3 and the acid distributing branch pipe 4 are all made of corrosion-resistant alloy.
The embodiment also provides a nicotinic acid tower, which comprises the flow equalizing acid distributor in the embodiment.
According to the arrangement, the acid liquor is pumped into the acid inlet pipe by the acid pump and is injected into the flow stabilizing box from the bottom, under the action of the acid pump, when the acid liquor flows from bottom to top, the influence of gravity can be exerted, under the condition that the flow stabilizing box is at a certain height, the pressure and the flow of the acid liquor flowing out of the acid inlet of each shunt pipe are the same, the acid liquor uniformly flows to the acid distributing main pipe from each shunt pipe, then uniformly flows to the acid distributing branch pipes, and finally is uniformly discharged from the acid outlet hole, so that the acid liquor is simpler, more efficient, and more energy-saving, and the cost is reduced to the.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a flow equalizing type divides sour ware, its characterized in that, including the acid inlet pipe (1), two at least shunt tubes (2), two at least branch acid header pipes (3) and a plurality of branch acid pipes (4) that communicate in proper order, a plurality of branch acid pipes (4) set up perpendicularly in divide sour header pipe (3) and connect in the both sides of dividing sour header pipe (3), each divide sour header pipe (3) parallel and symmetric distribution on by a plurality of divide the circular surface that acid branch pipe (4) are constituteed, each the lower part of branch acid pipe (4) all is equipped with a plurality of acid outlet holes (5), each acid outlet hole (5) are followed the length direction equidistance of branch acid pipe (4) distributes, the acid inlet department of acid inlet pipe (1) is connected with the acid pump, the one end that the acid inlet pipe (1) with shunt tube (2) is connected is less than the acid inlet on shunt tube (2), So that the acid liquid is uniformly pumped into each shunt pipe (2) from bottom to top.
2. The flow equalizing acid distributor according to claim 1, wherein a flow stabilizing box (6) is arranged between the acid inlet pipe (1) and the flow dividing pipe (2), the acid inlet pipe (1) is communicated with the bottom of the flow stabilizing box (6), and the flow dividing pipe (2) is communicated with the top of the flow stabilizing box (6).
3. The flow-equalizing acid distributor according to claim 2, wherein one end of the acid inlet pipe (1) connected with the flow stabilizing box (6) is lower than the acid inlet of the acid inlet pipe (1).
4. The flow equalizing acid distributor according to claim 2, wherein the number of the flow dividing pipes (2) is four, the four flow dividing pipes are respectively symmetrically connected to the periphery of the top of the flow stabilizing box (6), the number of the acid distributing main pipes (3) is two, and each acid distributing main pipe (3) is communicated with two flow dividing pipes (2).
5. The flow equalizing acid distributor according to claim 1, wherein the shunt tubes (2) are arranged in two rows, wherein the second row of shunt tubes (2) is arranged below the first row of shunt tubes (2), and the diameter of the first row of shunt tubes (2) is larger than that of the second row of shunt tubes (2).
6. The flow-equalizing acid distributor according to claim 1, wherein the diameter of the circular surface formed by the plurality of acid distributing branch pipes (4) is less than or equal to 3500 mm.
7. The flow-equalizing acid distributor according to claim 1, wherein each acid distributing branch pipe (4) is connected to the acid distributing header pipe (3) at the same height, so that the height of each acid outlet hole (5) is the same.
8. The flow-equalizing acid distributor according to claim 2, wherein the height of the flow-stabilizing box (6) is 650-1250 mm.
9. The flow equalizing acid distributor according to claim 1, wherein the acid inlet pipe (1), the flow dividing pipe (2), the acid distributing header pipe (3) and the acid distributing branch pipes (4) are made of corrosion-resistant alloy.
10. A nicotinic acid tower, comprising a flow-equalizing acid distributor according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921331045.1U CN210795766U (en) | 2019-08-16 | 2019-08-16 | Nicotinic acid tower and flow equalizing type acid distributor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921331045.1U CN210795766U (en) | 2019-08-16 | 2019-08-16 | Nicotinic acid tower and flow equalizing type acid distributor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210795766U true CN210795766U (en) | 2020-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921331045.1U Active CN210795766U (en) | 2019-08-16 | 2019-08-16 | Nicotinic acid tower and flow equalizing type acid distributor thereof |
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| Country | Link |
|---|---|
| CN (1) | CN210795766U (en) |
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2019
- 2019-08-16 CN CN201921331045.1U patent/CN210795766U/en active Active
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