Ammonia water evaporation and purification device

Abstract

The utility model relates to the technical field of evaporators, in particular to an ammonia water evaporation and purification device which comprises an evaporator body, the top and the bottom of the evaporator body are respectively communicated with a conveying pipe and a blow-off pipe, one side of the evaporator body is respectively communicated with an ammonia water inlet pipe and a steam pipe, and a sealing box is arranged at the outer end of the ammonia water inlet pipe. The outer side of the sealing box communicates with a mounting pipe, and ammonia water injection pipes are sequentially arranged in the ammonia water inlet pipe, the sealing box and the mounting pipe in a penetrating mode and extend into the evaporator body; the two sealing blocks can automatically abut against each other through the two springs when the ammonia water injection pipe is drawn out, temporary sealing can be achieved by matching with the sealing rings on the surfaces of the sealing blocks, harmful gas in the evaporator body is prevented from being injected out through a pipeline to hurt workers, and then the working efficiency is improved. The maintenance work of the ammonia water injection pipe can be completed when the evaporator body runs, and the maintenance efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporators, in particular to an ammonia water evaporation and purification device. Background Art

[0002] The recycling of ammonia water is to extract high-concentration ammonia water from ammonia nitrogen wastewater through a series of physical and chemical treatment steps for recycling. The evaporation and purification method of ammonia water mainly includes heating ammonia water, evaporating ammonia gas, condensing ammonia gas, separating water and ammonia gas, cooling ammonia gas, dehydrating, absorbing and regenerating. Many wastewaters containing ammonia water require ammonia evaporation to purify the ammonia water in the wastewater for recycling. Ammonia evaporators are divided into steam ammonia evaporators and hot air ammonia evaporators according to different heat sources. The hot air ammonia evaporator mainly includes ammonia metering and distribution, ammonia spray atomization, evaporator body, hot air pressurization system, etc.

[0003] The current ammonia evaporator uses an ammonia injector to inject ammonia into the evaporator. For example, the ammonia evaporator disclosed in the Chinese patent announcement "CN215691706U" includes: a cylinder, a left wall of which is equipped with an ammonia outlet assembly, and a left wall of the ammonia outlet pipe is equipped with an ammonia outlet flange, a left wall of which is equipped with an ammonia inlet pipe, and a left wall of the ammonia inlet pipe is equipped with an ammonia inlet flange; a first tube sheet, which is on the upper wall of the cylinder, and a plurality of tube holes are arranged inside the first tube sheet, and a plurality of flange holes are opened on the periphery of the first tube sheet; a second tube sheet, which is on the lower wall of the cylinder, and a plurality of tube holes are arranged inside the second tube sheet, and a plurality of flange holes are opened on the periphery of the second tube sheet.

[0004] In order to ensure the atomization effect of the currently used ammonia evaporator, the ammonia injector needs to be regularly removed from the evaporator body and maintained and repaired. In order to avoid the instantaneous high-temperature airflow ejected when the ammonia injector is removed and cause harm to the staff, the evaporator body needs to be stopped and the ammonia injector can be removed after the internal temperature drops. This makes it impossible to remove the ammonia injector for maintenance and repair when the evaporator body is running. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art that the evaporator needs to be stopped to take out the ammonia injector, and the maintenance work is difficult to carry out, and proposes an ammonia evaporation and purification device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An ammonia evaporation and purification device is designed, comprising an evaporator body, wherein the top and bottom of the evaporator body are respectively connected to a delivery pipe and a sewage pipe, one side of the evaporator body is respectively connected to an ammonia inlet pipe and a steam pipe, a sealing box is provided at the outer end of the ammonia inlet pipe, the outer side of the sealing box is connected to a mounting pipe, an ammonia injection pipe is sequentially penetrated inside the ammonia inlet pipe, the sealing box and the mounting pipe, and the ammonia injection pipe extends to the inside of the evaporator body, sealing mechanisms are provided on the upper and lower sides of the sealing box, a sealing cover is provided on the front side of the sealing box, and a clamping assembly is provided between the sealing cover and the sealing box.

[0008] Furthermore, the sealing mechanism includes at least two sealing blocks, the two sealing blocks are slidably connected to the inside of the sealing box, a pull rod is provided on the outside of the two sealing blocks, a pull plate is fixed on the outside of the pull rod, and an elastic component is provided between the sealing box and the pull rod.

[0009] Furthermore, the elastic component includes a circular cylinder and a circular plate, the circular cylinder is fixed to the upper and lower sides of the sealing box, the circular plate is fixed to the surface of the pull rod and is slidably connected to the circular cylinder, the surface of the pull rod is sleeved with a spring and the upper and lower ends of the spring are respectively in contact with the circular cylinder and the circular plate.

[0010] Furthermore, a sealing ring is bonded to the surface of the sealing block, and the outer side of the sealing ring is in close contact with the inner wall of the sealing box.

[0011] Furthermore, the clamping assembly includes at least two clamping joints, the two clamping joints are fixed to the inner side of the sealing cover, the upper and lower sides of the sealing box are fixed with clamping plates, the surface of the clamping plate is provided with a clamping groove and the clamping groove is movably connected to the clamping joint.

[0012] Furthermore, two sides of the sealing box are fixedly connected to the ammonia water inlet pipe and the installation pipe respectively, and the ammonia water injection pipe and the installation pipe are fixed by flanges and bolts.

[0013] The ammonia evaporation and purification device proposed by the utility model has the beneficial effect that: the utility model can automatically press the two sealing blocks together when the ammonia injection pipe is drawn out through two springs, and can achieve temporary sealing in cooperation with the sealing rings on the surfaces of the sealing blocks, so as to prevent harmful gases in the evaporator body from being sprayed out through the pipeline to injure the staff. Afterwards, the inspection and maintenance of the ammonia injection pipe can be completed while the evaporator body is running, thereby greatly improving the efficiency of the inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model Figure 1 ;

[0016] Figure 3 It is a partial three-dimensional structural schematic diagram of the utility model Figure 2 ;

[0017] Figure 4 For this utility model Figure 2 A partial enlarged view of point A in the middle.

[0018] In the figure: 1. evaporator body; 2. delivery pipe; 3. drain pipe; 4. ammonia inlet pipe; 5. steam pipe; 6. sealing box; 7. mounting pipe; 8. ammonia injection pipe; 9. sealing mechanism; 91. sealing block; 92. pull rod; 93. pull plate; 10. sealing cover; 11. snap-fit ​​assembly; 111. snap joint; 112. snap-fit ​​plate; 113. snap groove; 12. elastic assembly; 121. round cylinder; 122. round plate; 123. spring; 13. sealing ring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-4 The ammonia evaporation and purification device comprises an evaporator body 1, the top and bottom of the evaporator body 1 are respectively connected with a delivery pipe 2 and a sewage pipe 3, one side of the evaporator body 1 is respectively connected with an ammonia inlet pipe 4 and a steam pipe 5, the outer end of the ammonia inlet pipe 4 is provided with a sealing box 6, the outer side of the sealing box 6 is connected with a mounting pipe 7, the ammonia inlet pipe 4, the sealing box 6 and the mounting pipe 7 are fixedly installed by bolts, the interiors of the ammonia inlet pipe 4, the sealing box 6 and the mounting pipe 7 are successively penetrated with an ammonia injection pipe 8, and the ammonia injection pipe 8 extends to the interior of the evaporator body 1, the sealing box 6 and the mounting pipe 7 are respectively connected with an ammonia inlet pipe 4 and a steam pipe 5, and the sealing box 6 is connected with a mounting pipe 7 ... Sealing mechanisms 9 are provided on the upper and lower sides of the box 6, a sealing cover 10 is provided on the front of the sealing box 6, and a clamping assembly 11 is provided between the sealing cover 10 and the sealing box 6; the ammonia evaporation and purification device can automatically press the two sealing blocks 91 together when the ammonia injection pipe 8 is drawn out through two springs 123, and the sealing ring 13 on the surface of the sealing block 91 can achieve temporary sealing to prevent harmful gases in the evaporator body 1 from being sprayed out through the pipeline to injure the staff. Afterwards, the inspection and maintenance of the ammonia injection pipe 8 can be completed while the evaporator body 1 is running, which greatly improves the efficiency of the inspection and maintenance.

[0021] In this embodiment, the sealing mechanism 9 includes at least two sealing blocks 91. The sealing blocks 91 are symmetrically distributed and can seal against each other. The two sealing blocks 91 are slidably connected to the inside of the sealing box 6. A pull rod 92 is provided on the outside of the two sealing blocks 91. A pull plate 93 is fixed on the outside of the pull rod 92. The pull plate 93 can facilitate pulling up the pull rod 92. An elastic component 12 is provided between the sealing box 6 and the pull rod 92.

[0022] Furthermore, the elastic component 12 includes a circular cylinder 121 and a circular plate 122. The circular cylinder 121 is fixed to the upper and lower sides of the sealing box 6. The circular plate 122 is fixed to the surface of the pull rod 92 and is slidably connected to the circular cylinder 121. The surface of the pull rod 92 is sleeved with a spring 123 and the upper and lower ends of the spring 123 are respectively in contact with the circular cylinder 121 and the circular plate 122. The circular plate 122 can squeeze the spring 123 when pulled, and the spring 123 can also provide the pressure required for continuous sealing of the sealing block 91 for sealing.

[0023] Furthermore, a sealing ring 13 is bonded to the surface of the sealing block 91 , and the outer side of the sealing ring 13 is in close contact with the inner wall of the sealing box 6 . The sealing ring 13 can increase the contact sealing performance of the sealing block 91 to prevent gas leakage.

[0024] In addition, the snap-in assembly 11 includes at least two snap-in joints 111, which are connected to the sealing cover 10 by elastic plastic and can be bent to a certain extent when snapped. The two snap-in joints 111 are fixed to the inner side of the sealing cover 10, and snap-in plates 112 are fixed on the upper and lower sides of the sealing box 6. A snap-in groove 113 is provided on the surface of the snap-in plate 112, and the snap-in groove 113 is movably connected to the snap-in joint 111.

[0025] It should be noted that the two sides of the sealing box 6 are fixedly connected to the ammonia inlet pipe 4 and the installation pipe 7 respectively, and the ammonia injection pipe 8 and the installation pipe 7 are fixed by a flange and bolts. The use of bolts to fix them separately can facilitate the sealing box 6 to be disassembled as a whole for maintenance.

[0026] Working method: When the ammonia injection pipe 8 needs to be inspected and repaired, the staff can directly pull out the ammonia injection pipe 8. After one end of the ammonia injection pipe 8 completely passes through the sealing box 6, the sealing block 91 will lose pressure and thus seal against each other under the action of the spring 123. Then, the ammonia injection pipe 8 can be removed for inspection by continuing to be pulled out, and the external sealing cover 10 can be removed by pressing the card joint 111 by hand. After removal, the sealing box 6 can be cleaned, and the ammonia injection pipe 8 can be reinserted after maintenance. After insertion, the pull rod 92 can be pulled apart by hand to pull the upper and lower sealing blocks 91 apart and the ammonia injection pipe 8 can be re-extended into the interior of the evaporator body 1.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An ammonia water evaporation and purification device, comprising an evaporator body (1), characterized in that: The top and bottom of the evaporator body (1) are respectively connected to a delivery pipe (2) and a sewage pipe (3); one side of the evaporator body (1) is respectively connected to an ammonia inlet pipe (4) and a steam pipe (5); a sealing box (6) is provided at the outer end of the ammonia inlet pipe (4); the outer side of the sealing box (6) is connected to a mounting pipe (7); an ammonia injection pipe (8) is sequentially passed through the interior of the ammonia inlet pipe (4), the sealing box (6) and the mounting pipe (7); the ammonia injection pipe (8) extends to the interior of the evaporator body (1); sealing mechanisms (9) are provided on both upper and lower sides of the sealing box (6); a sealing cover (10) is provided on the front of the sealing box (6); and a clamping assembly (11) is provided between the sealing cover (10) and the sealing box (6).

2. The ammonia evaporation and purification device according to claim 1, characterized in that: The sealing mechanism (9) comprises at least two sealing blocks (91), the two sealing blocks (91) are slidably connected to the inside of the sealing box (6), a pull rod (92) is provided on the outside of the two sealing blocks (91), a pull plate (93) is fixed on the outside of the pull rod (92), and an elastic component (12) is provided between the sealing box (6) and the pull rod (92).

3. The ammonia evaporation and purification device according to claim 2, characterized in that: The elastic component (12) includes a circular cylinder (121) and a circular plate (122), wherein the circular cylinder (121) is fixed to the upper and lower sides of the sealing box (6), and the circular plate (122) is fixed to the surface of the pull rod (92) and is slidably connected to the circular cylinder (121), and the surface of the pull rod (92) is sleeved with a spring (123) and the upper and lower ends of the spring (123) are respectively in contact with the circular cylinder (121) and the circular plate (122).

4. The ammonia evaporation and purification device according to claim 2, characterized in that: A sealing ring (13) is bonded to the surface of the sealing block (91), and the outer side of the sealing ring (13) is in close contact with the inner wall of the sealing box (6).

5. The ammonia evaporation and purification device according to claim 1, characterized in that: The clamping assembly (11) comprises at least two clamping joints (111), the two clamping joints (111) being fixed to the inner side of the sealing cover (10), and clamping plates (112) being fixed to the upper and lower sides of the sealing box (6), a clamping groove (113) being provided on the surface of the clamping plate (112), and the clamping groove (113) being movably connected to the clamping joints (111).

6. The ammonia evaporation and purification device according to claim 1, characterized in that: The two sides of the sealing box (6) are fixedly connected to the ammonia water inlet pipe (4) and the mounting pipe (7) respectively, and the ammonia water injection pipe (8) is fixed to the mounting pipe (7) by means of flanges and bolts.

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