A water droplet separator for an exhaust gas scrubbing system

Abstract

The utility model discloses a water drop separator of an exhaust gas washing system, which relates to the technical field of chemical production equipment, and comprises a separator cylinder; a steam inlet guide pipe, which is fixedly mounted on the side wall of the separator cylinder and is connected with the separator cylinder, and the steam inlet guide pipe is welded to the tangent direction of the separator cylinder; a cylinder steam outlet, which is located at the upper end of the separator cylinder; a steam outlet guide device, which is installed at the cylinder steam outlet; a tapered pipe, which is fixed to the inner wall of the separator cylinder; a liquid seal groove, which is located inside the separator cylinder, and the liquid inlet of the liquid seal groove is connected with the liquid outlet of the tapered pipe; the utility model arranges the steam inlet guide pipe, the steam outlet guide device and the liquid seal groove on the separator cylinder, thereby reducing the floor space of the overall separator, and has a simple and compact structure and low manufacturing cost, thereby enhancing the practicability of the separator.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production equipment, and more specifically to a water drop separator of a tail gas washing system. Background Art

[0002] The steam-water separator is a gas-liquid separation device, which is mainly used to separate the water in the gas phase and improve the dryness of the steam. The core function of the steam-water separator is to remove the water in the steam, ensuring that the output steam is dry and does not contain water, meeting the needs of various industrial applications. In the production of wet phosphoric acid, the tail gas of the reaction system carries a large amount of fluoride. After washing, a large amount of silica gel will be generated. These silica gels will be deposited and bonded in the gas system and need to be cleaned regularly. Therefore, there are special requirements for the gas-liquid separator used in the system, which must have a high separation efficiency and be easy to disassemble and clean.

[0003] Existing tail gas gas-liquid separator products of wet-process phosphoric acid production systems usually adopt the principle of rotary centrifugation or impact to separate steam and water droplets under the action of centrifugal force, gravity and impact force. However, the separation system generally has the problems of large floor space, complex structure and long pipelines (taking patent CN210825429U as an example). Therefore, it is necessary to provide a water droplet separation device for tail gas washing system with compact structure, simple manufacture, low cost, convenient disassembly and assembly, and strong practicality. Utility Model Content

[0004] The purpose of the utility model is to solve the above technical problems and provide a water drop separator for an exhaust gas washing system.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0006] A water droplet separator for an exhaust gas scrubbing system, comprising:

[0007] Separator cylinder;

[0008] A steam inlet guide pipe, which is fixedly mounted on the side wall of the separator cylinder and communicated with the separator cylinder;

[0009] A cylinder steam outlet, wherein the cylinder steam outlet is located at the upper end of the separator cylinder;

[0010] A steam outlet guide device, the steam outlet guide device is installed at the steam outlet of the cylinder;

[0011] A conical tube, wherein the conical tube is fixed to the inner wall of the separator cylinder;

[0012] The liquid sealing groove is located inside the separator cylinder, and the liquid inlet of the liquid sealing groove is connected with the liquid outlet of the tapered tube.

[0013] In order to facilitate the installation and disassembly of the steam outlet guide device, as a preferred water droplet separator of an exhaust gas washing system of the utility model, the steam outlet guide device includes a mounting cylinder end and a steam outlet guide pipe, the mounting cylinder end and the steam outlet guide pipe are connected to each other, the mounting cylinder end is detachably connected to the upper end of the cylinder steam outlet through a flange, and the lower end of the steam outlet guide pipe is plugged into the cylinder steam outlet and extends to the interior of the separator cylinder.

[0014] In order to facilitate the installation of the conical tube and the liquid sealing tank, as a preferred water drop separator of an exhaust gas washing system of the utility model, the lower end of the conical tube is fixedly connected to an outlet pipe, the lower end of the outlet pipe is detachably connected to a connecting pipe through a flange, and the lower end of the connecting pipe is plugged into the liquid inlet of the liquid sealing tank.

[0015] In order to prevent the liquid in the liquid sealing groove from overflowing, as a preferred water drop separator of an exhaust gas washing system of the utility model, the distance between the lower end of the connecting pipe and the bottom of the inner wall of the liquid sealing groove is less than one third of the height of the liquid sealing groove.

[0016] In order to conveniently discharge the liquid in the liquid seal tank, as a preferred water drop separator of an exhaust gas washing system of the utility model, the outer wall of the liquid seal tank is connected with an overflow pipe, and the other end of the overflow pipe extends through to the outside of the separator cylinder.

[0017] In order to facilitate the staff to inspect the connection between the conical tube and the liquid sealing groove, as a preferred water drop separator of an exhaust gas washing system of the utility model, a manhole is installed on the outer wall of the separator cylinder, and the manhole is located on the outside of the connection between the conical tube and the liquid sealing groove.

[0018] The beneficial effects of the utility model are as follows:

[0019] 1. The steam inlet guide pipe, steam outlet guide device and liquid seal groove are all arranged on the separator cylinder, thereby reducing the footprint of the overall separator, and the structure is simple and compact, and the manufacturing cost is low, thereby enhancing the practicality of the separator;

[0020] 2. The conical tube and the liquid seal groove are connected by a flange, so that the installation and disassembly of the liquid seal groove are convenient; The conical tube and the liquid seal groove are connected by a flange, so that the installation and disassembly of the liquid seal groove are convenient; so that it is convenient for the staff to disassemble and repair the separator. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a cross-sectional schematic diagram of a separator cylinder and a steam inlet guide pipe of the utility model.

[0023] Figure numerals: 1, separator cylinder; 2, steam inlet guide pipe; 3, cylinder steam outlet; 4, steam outlet guide device; 401, installation cylinder end; 402, steam outlet guide pipe; 5, tapered pipe; 501, outlet pipe; 502, connecting pipe; 6, liquid seal groove; 601, overflow pipe; 7, manhole. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] See also Figure 1-2 , the utility model provides the following technical solutions:

[0027] A water droplet separator for an exhaust gas scrubbing system, comprising:

[0028] Separator cylinder 1;

[0029] The steam inlet guide pipe 2 is fixedly mounted on the side wall of the separator cylinder 1 and communicated with the separator cylinder 1. The steam inlet guide pipe 2 is welded to the separator cylinder 1 in a tangential direction.

[0030] The cylinder steam outlet 3 is located at the upper end of the separator cylinder 1;

[0031] A steam outlet guide device 4 is installed at the steam outlet 3 of the cylinder;

[0032] A conical tube 5, which is fixed to the inner wall of the separator cylinder 1;

[0033] The liquid sealing groove 6 is located inside the separator cylinder 1 , and the liquid inlet of the liquid sealing groove 6 is connected to the liquid outlet of the tapered tube 5 .

[0034] In this embodiment: the separator is specifically a cyclone separator, and the tail gas generated in the wet phosphoric acid production system enters the separator cylinder 1 through the steam inlet guide pipe 2. The steam inlet guide pipe 2 is welded to the separator cylinder 1 in the tangential direction, so that the tail gas moves along the cylinder wall when entering the separator to generate a centrifugal force with a strong flow rate. The tail gas is centrifuged or impacted by rotation, so that the steam and water droplets are separated under the action of centrifugal force, gravity and impact force. After separation, the gas is discharged through the steam outlet guide device 4, and the water droplets flow into the liquid seal groove 6 through the tapered pipe 5. By arranging the steam inlet guide pipe 2, the steam outlet guide device 4, and the liquid seal groove 6 on the separator cylinder 1, the overall separator footprint is reduced, and the structure is simple and compact, and the manufacturing cost is low, thereby enhancing the practicality of the separator.

[0035] As a technical optimization scheme of the utility model, the steam outlet guide device 4 includes a mounting cylinder end 401 and a steam outlet guide pipe 402, the mounting cylinder end 401 and the steam outlet guide pipe 402 are connected to each other, the mounting cylinder end 401 is detachably connected to the upper end of the cylinder steam outlet 3 through a flange, and the lower end of the steam outlet guide pipe 402 is plugged into the cylinder steam outlet 3 and extends to the interior of the separator cylinder 1.

[0036] In this embodiment, the steam outlet guide device 4 is connected to the cylinder steam outlet 3 through a flange, so that the workers can install and disassemble the steam outlet guide device 4 conveniently, so that the workers can disassemble and repair it.

[0037] As a technical optimization solution of the utility model, the lower end of the conical tube 5 is fixedly connected to the outlet tube 501, and the lower end of the outlet tube 501 is detachably connected to the connecting tube 502 through a flange. The lower end of the connecting tube 502 is plugged into the liquid inlet of the liquid seal groove 6, and the distance between the lower end of the connecting tube 502 and the bottom of the inner wall of the liquid seal groove 6 is less than one third of the height of the liquid seal groove 6.

[0038] In this embodiment, the conical tube 5 is connected to the liquid seal groove 6 by a flange, so as to facilitate the installation and disassembly of the liquid seal groove 6, so that the staff can disassemble and repair it. The connecting tube 502 is inserted from top to bottom to two-thirds of the liquid seal groove 6, so as to reduce the overflow of the liquid in the liquid seal groove 6.

[0039] As a technical optimization solution of the utility model, the outer wall of the liquid seal groove 6 is connected with an overflow pipe 601 , and the other end of the overflow pipe 601 extends through and extends to the outside of the separator cylinder 1 .

[0040] In this embodiment, an overflow pipe 601 is provided to connect to the liquid sealing groove 6 , and the overflow pipe 6 is located below the connecting pipe 502 , thereby achieving the effect of conveniently discharging the liquid in the liquid sealing groove 6 .

[0041] As a technical optimization solution of the utility model, a manhole 7 is installed on the outer wall of the separator cylinder 1, and the manhole 7 is located outside the connection between the tapered tube 5 and the liquid sealing groove 6.

[0042] In this embodiment, the conical tube 5 is arranged inside the separator cylinder 1, and the manhole is located on the side wall of the separator cylinder 1, so that the staff can observe the water collection situation of the separator conical tube 5 at any time through the manhole 7, and it is also convenient for the staff to enter the separator for maintenance.

[0043] The working principle and use process of this utility model:

[0044] The tail gas generated in the wet phosphoric acid production system enters the separator cylinder 1 through the steam inlet guide pipe 2. The steam inlet guide pipe 2 is welded to the separator cylinder 1 in the tangential direction, so that the tail gas moves along the cylinder wall when entering the separator to generate a centrifugal force with a strong flow rate. The tail gas is separated from the steam and water droplets under the action of centrifugal force, gravity and impact force through rotation centrifugation or impact. After separation, the gas is discharged through the steam outlet guide device 4, and the water droplets flow into the liquid seal tank 6 through the tapered pipe 5. Finally, the liquid in the liquid seal tank 6 is discharged through the overflow pipe 601. The staff can inspect the connection between the tapered pipe 5 and the liquid seal tank 6 through the manhole 7.

[0045] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A water drop separator for an exhaust gas scrubbing system, characterized in that: include: Separator cylinder (1); A steam inlet guide pipe (2), wherein the steam inlet guide pipe (2) is fixedly mounted on a side wall of the separator cylinder (1) and is in communication with the separator cylinder (1); A cylinder steam outlet (3), wherein the cylinder steam outlet (3) is located at the upper end of the separator cylinder (1); A steam outlet guide device (4), wherein the steam outlet guide device (4) is installed at the steam outlet (3) of the cylinder; A conical tube (5), wherein the conical tube (5) is fixed to the inner wall of the separator cylinder (1); A liquid sealing groove (6), wherein the liquid sealing groove (6) is located inside the separator cylinder (1), and the liquid inlet of the liquid sealing groove (6) is connected to the liquid outlet of the conical tube (5).

2. The water drop separator of the tail gas scrubbing system according to claim 1, characterized in that: The steam outlet guide device (4) comprises a mounting cylinder end (401) and a steam outlet guide pipe (402); the mounting cylinder end (401) and the steam outlet guide pipe (402) are connected to each other; the mounting cylinder end (401) is detachably connected to the upper end of the cylinder steam outlet (3) via a flange; the lower end of the steam outlet guide pipe (402) is plugged into the cylinder steam outlet (3) and extends to the interior of the separator cylinder (1).

3. The water drop separator of the tail gas scrubbing system according to claim 1, characterized in that: The lower end of the conical tube (5) is fixedly connected to an outlet tube (501), and the lower end of the outlet tube (501) is detachably connected to a connecting tube (502) via a flange, and the lower end of the connecting tube (502) is plugged into the liquid inlet of the liquid sealing groove (6).

4. The water drop separator of the tail gas scrubbing system according to claim 3, characterized in that: The distance between the lower end of the connecting pipe (502) and the bottom of the inner wall of the liquid sealing groove (6) is less than one third of the height of the liquid sealing groove (6).

5. The water drop separator of the tail gas scrubbing system according to claim 1, characterized in that: The outer wall of the liquid seal groove (6) is connected to an overflow pipe (601), and the other end of the overflow pipe (601) extends through and extends to the outside of the separator cylinder (1).

6. The water drop separator of the tail gas scrubbing system according to claim 1, characterized in that: A manhole (7) is installed on the outer wall of the separator cylinder (1), and the manhole (7) is located outside the connection between the conical tube (5) and the liquid sealing groove (6).

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