A bundled type condensing demister

Abstract

The utility model discloses a kind of bundle type condensing demister, belong to condensing demisting technical field, including demister vertical tower, tower is sequentially fixedly connected with bundle condenser, lower flat panel demister, upper flat panel demister, wire mesh demister and tube bundle demister from bottom to top, mist gas is formed into cyclone by tangent direction's side cylinder mouth and horizontal communication pipe, cooling coalescence by bundle condenser, again by baffle vane of flat panel demister, wire mesh of wire mesh demister and the step-by-step purification of special-shaped pipe of tube bundle demister, after purification gas is discharged by upper cylinder mouth, separated liquid is discharged by bottom cylinder pipe.The utility model is through the structure of multistage, multiple principle synergistic effect, realizes to wide particle size range droplet high efficiency, grading removal, overall demisting efficiency is high, stable and reliable operation.

Description

Technical Field

[0001] This utility model relates to the field of condensation and demisting technology, and in particular to a cluster-type condensation and demisting device. Background Technology

[0002] Demisters are widely used gas-liquid separation devices in industrial production. Their main function is to remove entrained droplets or mist from gas streams to ensure the smooth operation of subsequent processes, reduce equipment corrosion, prevent material loss, or avoid environmental pollution. Demisters employ various demisting principles, including gravity settling, inertial impaction, centrifugal separation, and wire mesh interception. Different demisting principles have different applicable droplet size ranges and demisting efficiencies. For example, a simple baffle demister is effective at removing larger droplets but ineffective at removing tiny droplets.

[0003] A search revealed Chinese Patent Publication No. CN210356452U, which discloses a demister comprising rectangular plates. The demister has a multi-layered mesh structure, with the plates including longitudinal and transverse plates. The longitudinal and transverse plates of adjacent layers are arranged in a crisscross pattern, and the longitudinal and transverse plates are inclined respectively. While the structure is simple, has a high demisting rate, is not prone to clogging, and has a long service life, it does not consider the effective removal of droplets of different sizes from mist-containing gases.

[0004] Therefore, this utility model proposes a cluster-type condenser demister to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the problems in the existing technology of demisters, such as uneven removal efficiency for droplets of different sizes, especially limited capture capacity for fine droplets, and poor operational stability due to easy clogging by large droplets, this utility model aims to provide a demister with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a clustered condenser demister, including a demister tower, an upper cylinder opening at the upper end of the demister tower, a bottom cylinder tube connected to the lower end, and a side cylinder opening on the side wall; as well as a clustered condenser, a lower plate demister, an upper plate demister, a wire mesh demister, and a tube bundle demister disposed in the inner cavity of the demister tower.

[0007] Furthermore, the cluster condenser, lower plate demister, upper plate demister, wire mesh demister, and tube bundle demister are combined by being stacked and fixedly connected in sequence along the gas flow direction from bottom to top, forming a multi-level synergistic purification structure that integrates multiple principles such as condensation, inertial collision, wire mesh interception, and tube bundle capture, thereby achieving step-by-step and efficient separation of mist-containing gas.

[0008] Preferably, the demister also includes a transverse connecting pipe, which is connected to the side cylinder opening, and the side cylinder opening is set along the tangential direction of the vertical tower of the demister. The structure is used to guide the mist-containing gas into the lower part of the tower in a rotating manner, and to achieve pre-separation of large droplets by centrifugal force.

[0009] Preferably, the bundled condenser is a tube bundle structure with heat exchange function, which is installed above the side cylinder opening to force cooling of the swirling gas, so that the tiny droplets in the gas that are difficult to separate condense and agglomerate into larger droplets, so as to facilitate collection by subsequent units.

[0010] Preferably, both the lower plate demister and the upper plate demister include multiple sets of baffle blades, which force the gas to change its flow direction multiple times as it flows through, thereby using the inertia of the droplets to make them collide with the blades and be captured.

[0011] Preferably, the wire mesh demister comprises multiple layers of overlapping woven metal wire mesh, which effectively removes smaller mist droplets remaining after passing through the flat plate demister through the interception, adsorption, and gravity of the wire mesh.

[0012] Preferably, the tube bundle demister includes multiple sets of horizontally parallel irregularly shaped tubes for final fine purification of the gas.

[0013] Preferably, the inside of the irregular tube has a flow guiding structure, which forms a narrow channel to force the gas to accelerate, further enhancing the inertial separation effect and efficiently capturing the extremely fine mist droplets that the previous demisting unit failed to remove.

[0014] Preferably, the upper cylinder opening is located directly above the tube bundle demister to facilitate the smooth discharge of purified gas.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model solves the problem of uneven removal efficiency and poor overall demisting effect of existing single-principle demisting equipment for droplets of different sizes by sequentially arranging a cluster condenser, a lower plate demister, an upper plate demister, a wire mesh demister, and a tube bundle demister in the vertical tower of the demister along the gas flow direction. It achieves the technical effect of multi-level, multi-principle synergistic purification of droplets, significantly improving the overall demisting efficiency.

[0017] 2. This utility model, by setting a side cylinder inlet that enters in a tangential direction and a transverse connecting pipe, forms a vortex in the lower part of the tower, which solves the problem of excessive load or blockage caused by a large number of large droplets directly impacting the subsequent fine demisting elements. It achieves the technical effect of pre-separating large droplets, reducing the load on the subsequent demisting unit, and improving the operational stability of the equipment.

[0018] 3. This utility model solves the problem that tiny mist droplets in the gas are difficult to be captured by subsequent mechanical demisting elements by first setting up a cluster condenser to cool down the mist-containing gas. It achieves the technical effect of making the tiny mist droplets agglomerate into larger particles, thereby improving the capture efficiency of subsequent flat plate and wire mesh demisting units. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0020] Figure 2 This is a front view of the structure of this utility model;

[0021] Figure 3 This is a side view of the structure of this utility model;

[0022] Figure 4 This is a top view of the structure of this utility model.

[0023] Legend:

[0024] 1. Demister tower; 2. Upper cylinder inlet; 3. Side cylinder inlet; 4. Bottom cylinder tube; 5. Horizontal connecting pipe; 6. Bundled condenser; 7. Lower plate demister; 8. Wire mesh demister; 9. Tube bundle demister; 11. Upper plate demister. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Example:

[0027] Please refer to Figures 1 to 4 This utility model provides a cluster-type condenser demister, including a demister tower 1, an upper cylinder opening 2 at the upper end of the demister tower 1, a bottom cylinder pipe 4 connected to the lower end of the demister tower 1, and a side cylinder opening 3 on the side wall of the demister tower 1. The demister tower 1 serves as the mounting shell of the entire device and the main channel for gas-liquid separation.

[0028] To solve the above-mentioned technical problems, the technical solution of this embodiment is that the inner cavity of the demister tower 1 also includes a bundled condenser 6, a lower plate demister 7, an upper plate demister 11, a wire mesh demister 8, and a tube bundle demister 9 arranged in sequence, and these components form a multi-stage series demister structure inside the demister tower 1.

[0029] Please refer to Figure 1The cluster condenser 6 is installed at the lower part of the demister tower 1 and above the side cylinder inlet 3, and is used to cool the gas and cause small mist droplets to coalesce.

[0030] The flat plate demister 7 is fixedly connected above the cluster condenser 6.

[0031] The upper flat plate demister 11 is fixedly connected above the lower flat plate demister 7. The lower flat plate demister 7 and the upper flat plate demister 11 work together to achieve demisting through inertial collision.

[0032] The wire mesh demister 8 is fixedly connected above the upper plate demister 11 and is used to intercept and adsorb finer mist droplets.

[0033] The tube bundle demister 9 is fixedly connected above the wire mesh demister 8, and the tube bundle demister 9 is located directly below the upper cylinder opening 2, for the purpose of final fine separation.

[0034] This stacked structure, which is connected sequentially from bottom to top along the gas flow direction and integrates multiple principles such as condensation, inertial collision, wire mesh interception, and tube bundle capture, ensures that the mist-containing gas is purified step by step in the tower, and achieves efficient capture of mist droplets of different sizes.

[0035] At the same time, please refer to Figure 2 and Figure 4 The demister also includes a transverse connecting pipe 5, which is connected to the side cylinder opening 3. The transverse connecting pipe 5 and the side cylinder opening 3 are arranged along the tangential direction of the vertical tower 1 of the demister. Its function is to guide the mist-containing gas into the tower body in a rotating manner and achieve preliminary separation of large droplets through the swirling effect.

[0036] In a preferred embodiment, to achieve swirling air intake, the demister also includes a transverse connecting pipe 5, which is connected to the side cylinder opening 3. The side cylinder opening 3 is arranged along the tangential direction of the vertical tower 1 of the demister. After the mist-containing gas enters through this opening, it forms a swirling airflow in the space below the bundled condenser 6.

[0037] In a preferred embodiment, in order to achieve cooling of the gas and initial coalescence of the droplets, the specific structure of the bundled condenser 6 is a tube bundle structure with heat exchange function.

[0038] In a preferred embodiment, in order to capture droplets through inertial collision, both the lower plate demister 7 and the upper plate demister 11 include multiple sets of baffles, which force the gas to change its flow direction multiple times as it flows through them.

[0039] As a preferred embodiment, in order to intercept and adsorb finer mist droplets, the wire mesh demister 8 is specifically constructed as a multi-layered overlapping woven metal wire mesh.

[0040] In a preferred embodiment, for final fine separation, the tube bundle demister 9 includes multiple sets of horizontally parallel irregularly shaped tubes.

[0041] More preferably, in order to improve separation efficiency, the irregular tube has a flow guiding structure inside, which forms a narrow channel to force the gas to accelerate, thereby using inertia to make the droplets impact the tube wall.

[0042] As a preferred layout, the upper cylinder opening 2 is located directly above the tube bundle demister 9 to smoothly discharge the gas purified by the tube bundle demister 9.

[0043] Working principle: Mist-laden gas enters the demister tower 1 tangentially through the side inlet 3 and the transverse connecting pipe 5, forming a swirling flow. Due to its low density, it flows upwards into the cluster condenser 6. The cluster condenser 6 lowers the temperature of the mist-laden gas through heat exchange, accumulating the water mist and causing small water mist particles to coalesce into larger water mist particles. The initially demisted gas continues to flow into the lower plate demister 7 and the upper plate demister 11. The rotation of the lower plate demister 7 and the upper plate demister 11 subjects the gas to centrifugal force, causing the gas to pass through the lower plate demister 7 and the upper plate demister 11 multiple times. The inner channel changes direction, and the droplets are thrown onto the blades under the action of inertia and centrifugal force, further realizing gas-liquid separation. The small droplets on the blades gather into large droplets and fall down by gravity. The mist-containing gas enters the wire mesh demister 8 from bottom to top. The small droplets carried by the gas are adsorbed when they encounter the demister wire mesh of the wire mesh demister 8. After multiple adsorptions, the droplets gather into large droplets and move downward along the woven wire mesh under the action of gravity. At the same time, it continues to adsorb the droplets carried in the gas. The droplets flow to the bottom of the wire mesh and fall down by their own gravity.

[0044] Furthermore, during the absorption process, the entire interior of the wire mesh demister 8 is filled with adsorbed mist droplets, enhancing the adsorption capacity of individual metals. This significantly improves the demisting rate of the demister wire mesh during normal operation, effectively adsorbing extremely small mist droplets. The gas then continues to enter the tube bundle demister 9, passing through multiple sets of horizontally parallel irregularly shaped tubes with specific flow guiding structures within the tube bundle demister 9. The mist-laden gas is forcibly accelerated due to the narrow channels of the irregularly shaped tubes. Because of its light weight and low inertia, the gas can flexibly follow the curved path of the pipe and change its direction of motion. The mist droplets, due to their large mass, find it difficult to follow the airflow and will tend to deviate from their trajectory, colliding with the inner wall of the irregularly shaped tubes, thus losing kinetic energy and being adsorbed onto the tube wall. The gas eventually flows out of the tube bundle demister 9 and is discharged into the demister tower 1 through the upper cylinder port 2. The mist droplets concentrated in the demister tower 1 fall into the bottom cylinder pipe 4 under the action of gravity and are discharged.

Claims

1. A cluster-type condenser demister, comprising: The demister tower (1) has an upper cylinder opening (2) at its upper end, a bottom cylinder pipe (4) at its lower end, and a side cylinder opening (3) on its side wall. The feature is that a cluster condenser (6) is provided in the inner cavity of the demister tower (1). The lower plate demister (7) is fixedly connected above the cluster condenser (6); The upper flat plate demister (11) is fixedly connected above the lower flat plate demister (7); The wire mesh demister (8) is fixedly connected above the upper plate demister (11); And the tube bundle demister (9) is fixedly connected above the wire mesh demister (8); The demister also includes a transverse connecting pipe (5), which is connected to the side cylinder opening (3), and the side cylinder opening (3) is arranged along the tangential direction of the demister tower (1).

2. A cluster-type condenser demister according to claim 1, characterized in that, The cluster condenser (6) is installed above the side cylinder inlet (3). The mist-containing gas introduced by the transverse connecting pipe (5) forms a swirling flow at the bottom of the demister tower (1) and then enters the cluster condenser (6) upward.

3. A cluster-type condenser demister according to claim 1, characterized in that, The bundled condenser (6) is a tube bundle structure with heat exchange function, used to reduce gas temperature and agglomerate small water mist into large water mist particles.

4. A cluster-type condenser demister according to claim 1, characterized in that, Both the lower plate demister (7) and the upper plate demister (11) include multiple sets of baffle blades, which are used to change the flow direction of the gas multiple times.

5. A cluster-type condenser demister according to claim 1, characterized in that, The wire mesh demister (8) comprises multiple layers of overlapping woven metal wire mesh.

6. The demister according to claim 1, characterized in that, The tube bundle demister (9) includes multiple sets of horizontally parallel irregularly shaped tubes.

7. A cluster-type condenser demister according to claim 6, characterized in that, The irregularly shaped tube has a flow guiding structure inside, which forms a narrow channel to force the gas to accelerate.

8. A cluster-type condenser demister according to claim 1, characterized in that, The upper cylinder opening (2) is located directly above the tube bundle demister (9) and is used to discharge the gas purified by the tube bundle demister (9).

Images