A multi-point precise ammonia distributor

Abstract

The present invention relates to the technical field of ammonia desulfurization, and specifically discloses a multi-point precise ammonia distributor, including a distribution pipe group, the distribution pipe group includes a plurality of ring pipes and a column box, the plurality of ring pipes are located in the same horizontal plane and are coaxially arranged, the plurality of ring pipes are fixedly connected by a plurality of connecting pipes, a plurality of connecting pipes distributed in an array are arranged between the column box and the adjacent ring pipes; a plurality of branch pipes are arranged on the side wall of the delivery pipe; the reducer is used to spray ammonia gas or ammonia liquid, the bottom end of the column box is provided with a reducer, the side wall of the ring pipe is provided with a plurality of reducers distributed in an array, and the reducers on two adjacent ring pipes are staggered. The present invention has a distribution structure for multi-point ammonia addition, a pressure equalization structure, improves the stability of the ammonia gas or ammonia liquid delivery process, improves the ammonia addition efficiency, is easy to maintain, and improves the mixing efficiency of ammonia and absorption liquid.

Description

Technical Field

[0001] The invention relates to the technical field of ammonia desulfurization, and in particular to a multi-point precise ammonia adding distributor. Background Art

[0002] Ammonia desulfurization involves two main steps: first, ammonia reacts with ammonium bisulfite to form ammonium sulfite, and then ammonium sulfite removes sulfur dioxide to form ammonium bisulfite. In the process of ammonia desulfurization, the solution after the reaction of ammonium sulfite and sulfur dioxide is diverted to the oxidation tank for oxidation to form ammonium sulfate solution, and then transported to the concentration section for concentration to obtain ammonium sulfate crystalline particles.

[0003] During use, some existing ammonia distributors usually use a straight tube with closed ends and a diffuser hole structure to complete the transportation of ammonia. As a result, when the number of diffusers is small, the ammonia addition points are insufficient and the ammonia addition rate is not high enough; when the number of diffusers is high, the ammonia addition rate between multiple points is uneven, affecting the mixing efficiency of ammonia and absorption liquid. Summary of the invention

[0004] In order to solve the above problems existing in the prior art, the present invention provides a multi-point precision ammonia distributor, which can solve the problems raised in the above background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A multi-point precise ammonia distributor, comprising:

[0007] A distribution pipe group, the distribution pipe group includes a plurality of annular pipes and a column box, the plurality of annular pipes are located in the same horizontal plane and are coaxially arranged, the plurality of annular pipes are fixedly connected by a plurality of connecting pipes, and a plurality of connecting pipes distributed in an array are arranged between the column box and adjacent annular pipes;

[0008] A delivery pipe, wherein a side wall of the delivery pipe is provided with a plurality of branch pipes;

[0009] A reducer, the reducer is used to spray ammonia gas or ammonia liquid, the bottom end of the column box is provided with a reducer, the side wall of the ring tube is provided with a plurality of reducers distributed in an array, and the reducers on two adjacent ring tubes are staggered;

[0010] A flow balancing component, the flow balancing component is installed at the bottom end of the reducer;

[0011] An air intake pipe, the top of the column box is provided with an air intake pipe, the side walls of the plurality of ring pipes are provided with air intake pipes, the air intake pipes are provided with sliding engagement with adjacent branch pipes, and a fixed connection component is provided between adjacent branch pipes of the air intake pipe;

[0012] An isobaric flow-limiting structure is located in the air intake pipe.

[0013] Preferably, the distance between two adjacent ring tubes is set to a fixed value, three connecting tubes distributed in an array are arranged between the two adjacent ring tubes, the ring tubes and the connecting tubes are connected, the column box and the connecting tubes are connected, and the multiple connecting tubes are respectively located on three radial lines of the column box.

[0014] Preferably, the branch pipe at the end of the delivery pipe is coaxially arranged with the column box, and the plurality of branch pipes away from the column box are distributed in a linear array.

[0015] Preferably, the flow balancing assembly includes a support ring, which is located at the bottom end of the reducer, and the support ring matches the diameter of the bottom end of the reducer. The inner wall of the support ring is provided with a plurality of flow balancing plates distributed in an array, and the flow balancing plates are in close contact with and slidably connected to the inner wall of the reducer. Three elastic folds are provided at the top of the flow balancing plates, and a limiting block is provided at the bottom end of the horizontal section of the elastic fold, and a limiting ring is provided at the top of the bottom tube body of the reducer, and the limiting block matches the limiting ring.

[0016] Preferably, a rubber ring is provided at the bottom end of the reducer, and the support ring matches the rubber ring.

[0017] Preferably, the outer wall of the limiting ring is provided with an oblique angle, and the cross section of the limiting block is provided in an isosceles trapezoidal shape.

[0018] Preferably, a clamping groove is provided at the bottom end of the branch pipe, and the air inlet pipe matches the clamping groove of the branch pipe.

[0019] Preferably, the fixed connection component includes a limiting cylinder shell, which is slidably sleeved on the air intake pipe, and a stop ring is provided on the outer wall of the air intake pipe. The stop ring and the limiting cylinder shell are slidably sleeved, and the stop ring matches the bottom wall of the limiting cylinder shell. The outer wall of the branch pipe is provided with a threaded body, and the stop ring is threadedly connected to the branch pipe through the threaded body.

[0020] Preferably, the isobaric flow limiting structure includes a support plate, which is fixedly mounted on the inner wall of the intake pipe, a guide plate is slidably mounted in the intake pipe, the guide plate is located below the support plate, a plurality of guide boxes distributed in a circular array are fixedly mounted on the top of the guide plate, a plurality of limiting holes are provided on the top of the support plate, the guide box is slidably connected to the limiting holes, a plurality of guide holes are provided on the side wall of the guide box, a limiting member is fixedly mounted on the top of the guide plate, the limiting member is penetrated and slidably connected to the support plate, a spring is provided between the limiting member and the support plate, a plurality of flow holes are provided on the side wall of the guide plate, and the flow holes are spaced apart from the guide box.

[0021] Preferably, the limiting member comprises a circular plate and a cylinder, the side wall of the spring is provided with a protective cover, and the two ends of the spring respectively abut against the supporting plate and the circular plate.

[0022] The beneficial effects of the present invention are:

[0023] 1. By setting a distribution pipe group and a delivery pipe, the beneficial effect that can be obtained is that the distribution pipe group includes multiple ring pipes and a column box, the multiple ring pipes are located in the same horizontal plane and are coaxially arranged, the distance between two adjacent ring pipes is set to a fixed value, the multiple ring pipes are fixedly connected by multiple connecting pipes, three connecting pipes distributed in an array are arranged between two adjacent ring pipes, the ring pipes and the connecting pipes are arranged in communication, multiple connecting pipes distributed in an array are arranged between the column box and the adjacent ring pipes, the column box and the connecting pipes are arranged in communication, multiple branch pipes away from the column box are distributed in a linear array, the reducer is used to spray ammonia gas or ammonia liquid, the bottom end of the column box is provided with a reducer, the side wall of the ring pipe is provided with multiple reducers distributed in an array, and the reducers on the two adjacent ring pipes are staggered;

[0024] By arranging multiple ring tubes, column boxes, multiple connecting tubes, and multiple reducer tubes at the bottom, a multi-point ammonia addition distribution structure is provided, thereby improving the ammonia addition efficiency.

[0025] 2. By setting an isobaric flow-limiting structure, the beneficial effect that can be obtained is that the support plate is fixedly installed on the inner wall of the intake pipe, a guide plate is slidably installed in the intake pipe, the guide plate is located below the support plate, a plurality of guide boxes distributed in a circumferential array are fixedly installed on the top of the guide plate, a plurality of limiting holes are arranged on the top of the support plate, the guide box is slidably connected to the limiting holes, a plurality of guide holes are arranged on the side wall of the guide box, a limiting member is fixedly installed on the top of the guide plate, the limiting member is penetrated and slidably connected to the support plate, a spring is arranged between the limiting member and the support plate, a plurality of flow holes are arranged on the side wall of the guide plate, and the flow holes and the guide box are distributed at intervals;

[0026] Ammonia gas or ammonia liquid is introduced into the delivery pipe, and then flows into multiple air inlet pipes through multiple branch pipes. Under the action of pressure difference, the guide plate moves away from the support plate, and the limiter, the guide box and the guide plate move synchronously, and the spring is compressed. The greater the delivery pressure of the ammonia gas or ammonia liquid, the greater the deformation of the spring. The ammonia liquid or ammonia gas flows into the annular tube or the column box from the drainage holes on the drainage box and the flow holes on the guide plate in turn. With the cooperation of multiple connecting pipes, the pressure between the multiple annular tubes and the column boxes is quickly equalized. The ammonia liquid or ammonia gas then flows out from the multiple reducers, which has a pressure equalization structure and improves the stability of the ammonia gas or ammonia liquid delivery process.

[0027] 3. By setting up the flow balancing component, the beneficial effect that can be obtained is that the flow balancing component includes a support ring, the support ring is located at the bottom end of the reducer, the support ring matches the diameter of the bottom end of the reducer, the inner wall of the support ring is provided with a plurality of flow balancing plates distributed in an array, the flow balancing plates are fitted and slidably connected to the inner wall of the reducer, three elastic flaps are provided at the top of the flow balancing plate, a limit block is provided at the bottom end of the horizontal section of the elastic flap, a limit ring is provided at the top end of the bottom tube body of the reducer, and the limit block matches the limit ring;

[0028] The ammonia liquid or ammonia gas then flows out from multiple reducers. At the same time, the support ring cooperates with multiple flow equalizing plates to equalize the flow of the ammonia liquid or ammonia gas. When the flow equalizing component needs to be maintained, the three elastic folding pieces are moved, and the limit block moves from the inside to the outside of the limit ring. The support ring and the flow equalizing plate are directly removed, and the blocked position is cleaned and put back to the original position, which is convenient for maintenance and improves the mixing efficiency of ammonia and absorption liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is the installation structure diagram of the column box in the present invention;

[0032] Figure 3 This is a diagram of the installation structure of the delivery pipe and the branch pipe in the present invention;

[0033] Figure 4 It is the installation structure diagram of the reducer in the present invention;

[0034] Figure 5 It is the installation structure diagram of the current balancing component in the present invention;

[0035] Figure 6 It is an installation structure diagram of the fixed connection component in the present invention;

[0036] Figure 7 This is a diagram of the installation structure of the support plate and the drainage box in the present invention;

[0037] Figure 8 It is an exploded diagram of the isobaric current limiting structure in the present invention.

[0038] Description of reference numerals:

[0039] In the figure: 1. distribution pipe group; 11. ring pipe; 12. connecting pipe; 13. column box; 2. delivery pipe; 21. branch pipe; 3. reducer; 31. limit ring; 4. support ring; 41. flow equalizing plate; 42. elastic folding piece; 43. limit block; 5. air inlet pipe; 51. limit cylinder shell; 52. stop ring; 61. support plate; 62. drainage plate; 63. drainage box; 64. limit hole; 65. drainage hole; 66. limit member; 67. spring; 68. flow hole. DETAILED DESCRIPTION

[0040] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are clearly and completely described below in combination with the accompanying drawings and preferred embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In the description of the present application, it should be understood that the orientation or position relationship indicated by "inside", "outside", etc. is based on the orientation or position described in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, a specific orientation structure and operation, and therefore cannot be understood as a limitation on the present application.

[0042] Reference Figure 1-Figure 8 , is a multi-point precise ammonia distributor disclosed in the present invention, comprising:

[0043] A distribution pipe group 1, the distribution pipe group 1 includes a plurality of annular pipes 11 and a column box 13, the plurality of annular pipes 11 are located in the same horizontal plane and are coaxially arranged, the interval between two adjacent annular pipes 11 is set at a fixed value, the plurality of annular pipes 11 are fixedly connected by a plurality of connecting pipes 12, three connecting pipes 12 distributed in an array are arranged between two adjacent annular pipes 11, the annular pipes 11 and the connecting pipes 12 are arranged in communication, a plurality of connecting pipes 12 distributed in an array are arranged between the column box 13 and the adjacent annular pipes 11, the column box 13 and the connecting pipe 12 are arranged in communication, and the plurality of connecting pipes 12 are respectively located on three radial lines of the column box 13;

[0044] The delivery pipe 2, the side wall of the delivery pipe 2 is provided with a plurality of branch pipes 21, the branch pipe 21 at the end of the delivery pipe 2 is coaxially arranged with the column box 13, and the plurality of branch pipes 21 away from the column box 13 are distributed in a linear array;

[0045] The reducer 3 is used to spray ammonia gas or ammonia liquid. The bottom end of the column box 13 is provided with a reducer 3. The side wall of the ring tube 11 is provided with a plurality of reducers 3 distributed in an array. The reducers 3 on two adjacent ring tubes 11 are staggered.

[0046] A flow balancing component, which is installed at the bottom end of the reducer 3. The flow balancing component includes a support ring 4, which is located at the bottom end of the reducer 3. The support ring 4 matches the diameter of the bottom end of the reducer 3. A rubber ring is provided at the bottom end of the reducer 3, and the support ring 4 matches the rubber ring. A plurality of flow balancing plates 41 distributed in an array are provided on the inner wall of the support ring 4. The flow balancing plates 41 are fitted and slidably connected to the inner wall of the reducer 3. Three elastic flaps 42 are provided at the top of the flow balancing plates 41. A limit block 43 is provided at the bottom end of the horizontal section of the elastic flap 42. A limit ring 31 is provided at the top end of the bottom tube body of the reducer 3. The limit block 43 matches the limit ring 31. The outer wall of the limit ring 31 is provided with an oblique angle, and the cross-section of the limit block 43 is provided in an isosceles trapezoid.

[0047] Inlet pipe 5, the top of the column box 13 is provided with an intake pipe 5, and the side walls of multiple ring pipes 11 are all provided with intake pipes 5, and the intake pipe 5 is slidably connected with the adjacent branch pipe 21, and the bottom end of the branch pipe 21 is provided with a connecting groove, and the intake pipe 5 matches the connecting groove of the branch pipe 21, and a fixed connection component is provided between the adjacent branch pipes 21 of the intake pipe 5, and the fixed connection component includes a limiting cylinder shell 51, and the limiting cylinder shell 51 is slidably sleeved on the intake pipe 5, and the outer wall of the intake pipe 5 is provided with a stop ring 52, and the stop ring 52 is slidably sleeved with the limiting cylinder shell 51, and the stop ring 52 matches the bottom wall of the limiting cylinder shell 51, and the outer wall of the branch pipe 21 is provided with a threaded body, and the stop ring 52 is threadedly connected with the branch pipe 21 through the threaded body;

[0048] The isobaric flow limiting structure is located in the air intake pipe 5. The isobaric flow limiting structure includes a support plate 61, which is fixedly mounted on the inner wall of the air intake pipe 5. A guide plate 62 is slidably mounted in the air intake pipe 5. The guide plate 62 is located below the support plate 61. A plurality of guide boxes 63 distributed in a circumferential array are fixedly mounted on the top of the guide plate 62. A plurality of limiting holes 64 are provided on the top of the support plate 61. The guide box 63 is slidably connected to the limiting hole 64. The guide box 63 The side wall is provided with a plurality of drainage holes 65, and a limiting member 66 is fixedly installed on the top of the drainage plate 62. The limiting member 66 and the support plate 61 are penetrated and slidably connected. A spring 67 is provided between the limiting member 66 and the support plate 61. The limiting member 66 includes a circular plate and a cylinder. A protective cover is provided on the side wall of the spring 67. The two ends of the spring 67 respectively resist the support plate 61 and the circular plate. The side wall of the drainage plate 62 is provided with a plurality of flow holes 68, and the flow holes 68 and the drainage box 63 are distributed at intervals.

[0049] The working principle and use process of the present invention are as follows: with the cooperation of the high-pressure conveying device, ammonia gas or ammonia liquid is introduced into the conveying pipe 2, and then flows into the multiple air inlet pipes 5 through the multiple branch pipes 21. Under the action of the pressure difference, the guide plate 62 moves away from the support plate 61, and the limiter 66, the guide box 63 and the guide plate 62 move synchronously, and the spring 67 is compressed. The greater the conveying pressure of the ammonia gas or ammonia liquid, the greater the deformation of the spring 67. The ammonia liquid or ammonia gas flows into the annular tube 11 or the column box 13 from the guide hole 65 on the guide box 63 and the flow hole 68 on the guide plate 62 in turn. With the cooperation of the multiple connecting pipes 12, the pressure between the multiple annular tubes 11 and the column box 13 is quickly equalized, and the ammonia liquid or ammonia gas then flows out from the multiple reducers 3. At the same time, the support ring 4 cooperates with the multiple flow equalizing plates 41 to equalize the flow of the ammonia liquid or ammonia gas;

[0050] When the current equalizing assembly needs to be maintained, the three elastic flaps 42 are moved, and the limit block 43 is moved from the inside of the limit ring 31 to the outside, and the support ring 4 and the current equalizing plate 41 are directly removed, and the blocked position is cleaned and then put back to the original position;

[0051] When the pipeline needs to be maintained, the limiting cylinder shell 51 is rotated to cancel the limiting of the branch pipe 21, and then the delivery pipe 2 and the branch pipe 21 are removed, and the inside of the air intake pipe 5 is cleaned. After the cleaning is completed, the delivery pipe 2 and the branch pipe 21 are reset.

[0052] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A multi-point precision ammonia distributor, characterized in that: include: A distribution pipe group (1), the distribution pipe group (1) comprising a plurality of annular pipes (11) and a column box (13), the plurality of annular pipes (11) being located on the same horizontal plane and being coaxially arranged, the plurality of annular pipes (11) being fixedly connected via a plurality of connecting pipes (12), and a plurality of connecting pipes (12) being arranged between the column box (13) and adjacent annular pipes (11); A delivery pipe (2), wherein a side wall of the delivery pipe (2) is provided with a plurality of branch pipes (21); A reducer (3), the reducer (3) being used to spray ammonia gas or ammonia liquid, the bottom end of the column box (13) being provided with a reducer (3), the side wall of the ring tube (11) being provided with a plurality of reducers (3) distributed in an array, and the reducers (3) on two adjacent ring tubes (11) being distributed in a staggered manner; A flow balancing component, the flow balancing component being installed at the bottom end of the reducer (3); An air intake pipe (5), wherein the top of the column box (13) is provided with an air intake pipe (5), the side walls of the plurality of ring pipes (11) are all provided with air intake pipes (5), the air intake pipe (5) is slidably connected to adjacent branch pipes (21), and a fixed connection component is provided between adjacent branch pipes (21) of the air intake pipe (5); An isobaric flow-limiting structure, wherein the isobaric flow-limiting structure is located in the air intake pipe (5); The isobaric flow limiting structure comprises a support plate (61), the support plate (61) being fixedly mounted on the inner wall of the air intake pipe (5), a guide plate (62) being slidably mounted in the air intake pipe (5), the guide plate (62) being located below the support plate (61), a plurality of guide boxes (63) distributed in a circumferential array being fixedly mounted on the top of the guide plate (62), a plurality of limiting holes (64) being arranged on the top of the support plate (61), the guide boxes (63) and the limiting holes (64) being slidably mounted on the inside of the air intake pipe (5), the guide plate (62) being located below the support plate (61), a plurality of guide boxes (63) being fixedly mounted on the top of the guide plate (62) and being distributed in a circumferential array, 64) is slidably connected, the side wall of the drainage box (63) is provided with a plurality of drainage holes (65), the top end of the drainage plate (62) is fixedly installed with a limiting member (66), the limiting member (66) and the support plate (61) are penetrated and slidably connected, a spring (67) is provided between the limiting member (66) and the support plate (61), and the side wall of the drainage plate (62) is provided with a plurality of flow holes (68), and the flow holes (68) are spaced apart from the drainage box (63).

2. A multi-point precise ammonia distributor according to claim 1, characterized in that: The distance between two adjacent annular tubes (11) is set to a fixed value, and three connecting tubes (12) distributed in an array are arranged between the two adjacent annular tubes (11). The annular tubes (11) and the connecting tubes (12) are arranged in communication with each other, and the column box (13) and the connecting tubes (12) are arranged in communication with each other. The plurality of connecting tubes (12) are respectively located on three radial lines of the column box (13).

3. A multi-point precise ammonia distributor according to claim 1, characterized in that: The branch pipe (21) located at the end of the delivery pipe (2) is coaxially arranged with the column box (13), and a plurality of the branch pipes (21) away from the column box (13) are distributed in a linear array.

4. A multi-point precise ammonia distributor according to claim 1, characterized in that: The flow balancing component comprises a support ring (4), the support ring (4) being located at the bottom end of the reducer (3), the support ring (4) matching the diameter of the bottom end of the reducer (3), the inner wall of the support ring (4) being provided with a plurality of flow balancing plates (41) distributed in an array, the flow balancing plates (41) being fitted and slidably connected to the inner wall of the reducer (3), three elastic folding pieces (42) being provided at the top end of the flow balancing plate (41), a limit block (43) being provided at the bottom end of the horizontal section of the elastic folding piece (42), a limit ring (31) being provided at the top end of the bottom tube body of the reducer (3), the limit block (43) matching the limit ring (31).

5. A multi-point precise ammonia distributor according to claim 4, characterized in that: The bottom end of the reducer (3) is provided with a rubber ring, and the support ring (4) matches the rubber ring.

6. A multi-point precise ammonia distributor according to claim 4, characterized in that: The outer wall of the limiting ring (31) is provided with an oblique angle, and the cross section of the limiting block (43) is provided in the shape of an isosceles trapezoid.

7. The multi-point precise ammonia distributor according to claim 1, characterized in that: A clamping groove is provided at the bottom end of the branch pipe (21), and the air inlet pipe (5) matches the clamping groove of the branch pipe (21).

8. The multi-point precise ammonia distributor according to claim 1, characterized in that: The fixed connection component comprises a limiting cylindrical shell (51), the limiting cylindrical shell (51) is slidably sleeved on the air intake pipe (5), the outer wall of the air intake pipe (5) is provided with a stop ring (52), the stop ring (52) and the limiting cylindrical shell (51) are slidably sleeved, the stop ring (52) matches the bottom wall of the limiting cylindrical shell (51), the outer wall of the branch pipe (21) is provided with a threaded body, and the stop ring (52) is threadedly connected to the branch pipe (21) through the threaded body.

9. The multi-point precise ammonia distributor according to claim 1, characterized in that: The limiting member (66) comprises a circular plate and a cylinder, a protective sleeve is provided on the side wall of the spring (67), and two ends of the spring (67) respectively abut against the support plate (61) and the circular plate.

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