Baffle plate type demister pasted with silk screen
By designing the tortuous airflow channel and wire mesh structure in the defoamer, the problem of liquid droplets being blown away by the airflow and secondary entrainment when the traditional defoamer is installed horizontally is solved, and better defoaming effect and efficiency are achieved.
Patent Information
- Application Number
- CN202421610536.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-08
AI Technical Summary
When the traditional baffle plate defoamer and wire mesh defoamer are installed horizontally, the droplets are prone to be blown away by the airflow and secondary entrainment, resulting in poor defoaming effect.
A wire mesh baffle plate defoamer is designed. By setting up a tortuous airflow channel and wire mesh on the baffle, it ensures that the airflow is in full contact with the wire mesh. The mist gathers on the wire mesh and flows to the low wind speed zone to form larger droplets for separation.
It effectively prevents the droplets from being blown away by the airflow and being re-encapsulated, improves the defoaming effect, and achieves low resistance and high efficiency defoaming performance.
Smart Images
Figure CN222829249U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of demisters, in particular to a wire mesh baffle type demister. Background Art
[0002] The demister is mainly used to remove droplets entrained in the gas. The demister can be installed vertically or horizontally. In practice, in order to adapt to the design of the pipeline system and meet the requirements of the demister for the installation position and increase the filtration area, the demister often needs to be installed horizontally. When the baffle demister is installed horizontally, the intercepted droplets will be blown away and carried away by the airflow, and the defoaming effect is not good. When the wire mesh demister is installed horizontally, the captured mist on the wire mesh is affected by the airflow, which is easy to produce secondary entrainment, affecting the separation effect. Therefore, it is necessary to design a demister that can prevent secondary entrainment and avoid the intercepted droplets from being dispersed and carried away by the airflow. Utility Model Content
[0003] Based on this, it is necessary to provide a wire mesh baffle type demister that can prevent the intercepted droplets from being blown away again by the airflow and prevent secondary entrainment.
[0004] A wire mesh baffle type demister, comprising:
[0005] Two fixing frames are arranged at intervals along a first direction; the first direction is consistent with the overall airflow direction passing through the wire mesh baffle demister;
[0006] A plurality of defoaming units are arranged at intervals along a second direction perpendicular to the first direction to form a tortuous airflow channel between two adjacent defoaming units; the defoaming units include a baffle and a wire mesh fixed to the surface of the baffle; both ends of each of the baffles are fixedly connected to two fixing frames respectively; the wire mesh completely covers the entire surface of the baffle facing the airflow channel.
[0007] In one of the embodiments, in the spacing direction of the plurality of defoaming units, the maximum tortuosity of the airflow channel is greater than the width of the airflow channel.
[0008] In one embodiment, the opening directions of both ends of the air flow channel are consistent with the first direction.
[0009] In one embodiment, the baffle includes a first sub-plate, a second sub-plate, a third sub-plate, a fourth sub-plate and a fifth sub-plate connected in sequence; the first sub-plate and the fifth sub-plate are fixedly connected to the two fixing frames respectively; in a plane parallel to the first direction and the spacing direction of the multiple defoaming units, the extension directions of any two adjacent sub-plates among the first sub-plate, the second sub-plate, the third sub-plate, the fourth sub-plate and the fifth sub-plate are cross-arranged, and the angles between any two adjacent sub-plates are obtuse angles.
[0010] In one of the embodiments, the wire mesh is fixed to the surface of the baffle by binding ropes.
[0011] In one of the embodiments, a plurality of small holes are formed on the baffle; the binding rope passes through the plurality of small holes and the wire meshes on both sides of the baffle in sequence to attach and fix the wire meshes on the baffle.
[0012] In one embodiment, the material of the binding rope is the same as that of the wire mesh.
[0013] When the above-mentioned wire mesh baffle demister is installed horizontally, the airflow can pass through the airflow channel from bottom to top. In the process of the airflow passing through the airflow channel, the tortuous airflow channel can ensure that the airflow can fully contact the wire mesh, so that the mist in the airflow collides with the filaments of the wire mesh and adheres to the surface of the filaments, and gathers and flows on the surface of the filaments, flows to the low wind speed area, gathers into larger droplets, and is separated and falls, and the defoaming effect is better. At the same time, the mist in the airflow adheres to the filaments of the wire mesh and gathers and flows on the wire mesh, and the airflow is mainly concentrated in the airflow channel. The wind force of the airflow on the wire mesh is relatively small, which reduces the probability of the intercepted droplets being blown away and carried away by the airflow again, and also reduces the probability of secondary entrainment, further improving the defoaming effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a structural schematic diagram of a wire mesh baffle type demister in a preferred embodiment of the utility model;
[0015] Figure 2 for Figure 1 The structural schematic diagram of the baffle in the wire mesh baffle demister shown;
[0016] Figure 3 for Figure 1 A partial cross-sectional view of the defoaming unit in a wire mesh baffle type defoamer is shown.
[0017] Explanation of reference numerals: 100, wire mesh baffle demister; 110, fixing frame; 120, defoaming unit; 121, baffle; 1211, first sub-plate; 1212, second sub-plate; 1213, third sub-plate; 1214, fourth sub-plate; 1215, fifth sub-plate; 1216, small hole; 122, wire mesh; 130, air flow channel; 140, binding rope; 10, first direction; 20, second direction. DETAILED DESCRIPTION
[0018] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0020] When describing positional relationships, unless otherwise specified, when an element is referred to as being "on" another element, it can be directly on the other element or there can be an intermediate element. It is also understood that when an element is referred to as being "between" two elements, it can be the only one between the two elements, or there can be one or more intermediate elements.
[0021] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.
[0022] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.
[0023] Figure 1 The structure of the wire mesh baffle demister in one embodiment of the utility model. For ease of description, the accompanying drawings only show structures related to the embodiment of the utility model.
[0024] See also Figure 1 The wire mesh baffle demister 100 is used for horizontal installation and includes two fixing frames 110 and a plurality of demister units 120 .
[0025] The two fixing frames 110 are arranged at intervals along the first direction 10. The first direction 10 is consistent with the overall airflow direction through the wire mesh baffle demister 100. When the wire mesh baffle demister 100 is installed horizontally, the first direction 10 is vertical from bottom to top.
[0026] The plurality of defoaming units 120 are arranged at intervals along a second direction 20 perpendicular to the first direction 10 to form a tortuous airflow channel 130 between two adjacent defoaming units 120. The defoaming unit 120 includes a baffle 121 in the form of a bent plate and a wire mesh 122 fixed to the surface of the baffle 121. Both ends of each baffle 121 are fixedly connected to two fixing frames 110 respectively. The wire mesh 122 completely covers the entire surface of the baffle 121 facing the airflow channel 130.
[0027] When the wire mesh baffle demister 100 is installed horizontally, the second direction 20 is horizontal. The wire mesh 122 can be fixed to the surface of the baffle 121 by bonding, bundling, welding, screwing, etc. The wire mesh 122 is a bent mesh plate structure that bends with the baffle 121.
[0028] When the wire mesh baffle demister 100 is installed horizontally, the airflow can pass through the airflow channel 130 from bottom to top, and the overall airflow direction is vertical from bottom to top. In the process of the airflow passing through the airflow channel 130, the tortuous airflow channel 130 can ensure that the airflow can fully contact the wire mesh 122, so that the mist in the airflow collides with the filaments of the wire mesh 122 and adheres to the surface of the filaments, and gathers and flows on the surface of the filaments, flows to the low wind speed area, gathers into larger droplets, and is separated and falls, so as to achieve the purpose of defoaming, and the defoaming effect is better. At the same time, the airflow through the wire mesh baffle demister 100 is mainly concentrated in the airflow channel 130, and the wind force of the airflow on the wire mesh 122 is very small, which reduces the probability that the droplets gathered on the wire mesh 122 are blown away and carried away by the airflow, and can also prevent the occurrence of secondary entrainment of mist in the airflow. The mist in the airflow adheres to the filaments of the wire mesh 122 and converges and flows on the wire mesh 122. The airflow is mainly concentrated in the airflow channel 130, and the wind force of the airflow on the wire mesh 122 is relatively small, which solves the problem that the intercepted droplets in the traditional demister are easily blown away and carried away by the airflow and are easily entrained again, and further improves the defoaming effect. Therefore, the above-mentioned wire mesh baffle demister 100 has the characteristics of low resistance and high efficiency, and has a higher defoaming effect and defoaming efficiency.
[0029] In some embodiments, in the spacing direction of the plurality of defoaming units 120 , the maximum tortuosity of the airflow channel 130 is greater than the width of the airflow channel 130 .
[0030] That is, the maximum bending amplitude of the airflow channel 130 in the second direction 20 is greater than the width of the airflow channel 130 in the second direction 20, which can ensure that the airflow entering the airflow channel 130 from the bottom will not go directly through the upper opening of the airflow channel 130. All airflow entering the airflow channel 130 is bound to collide with the wire mesh 122 in the airflow channel 130 to further improve the defoaming effect.
[0031] In some embodiments, the opening directions of both ends of the airflow channel 130 are consistent with the first direction 10. That is, the opening direction of the lower end of the airflow channel 130 is in the vertical downward direction, and the opening direction of the upper end of the airflow channel 130 is in the vertical upward direction, so that the direction of the airflow entering the wire mesh baffle demister 100 from the bottom is consistent with the direction of the airflow entering the upper part from the wire mesh baffle demister 100, which is conducive to improving the stability of the airflow above and below the wire mesh baffle demister 100.
[0032] Please also read Figure 2 In some embodiments, the baffle 121 includes a first sub-plate 1211, a second sub-plate 1212, a third sub-plate 1213, a fourth sub-plate 1214 and a fifth sub-plate 1215 connected in sequence. The first sub-plate 1211 and the fifth sub-plate 1215 are fixedly connected to two fixing frames 110 respectively. In a plane parallel to the first direction 10 and the spacing direction of the plurality of defoaming units 120, the extension directions of any two adjacent sub-plates among the first sub-plate 1211, the second sub-plate 1212, the third sub-plate 1213, the fourth sub-plate 1214 and the fifth sub-plate 1215 are cross-arranged, and the angles between any two adjacent sub-plates are all obtuse angles. Among them, the baffle 121 can be a baffle 121 formed by bending a whole plate in sequence to form a first sub-plate 1211, a second sub-plate 1212, a third sub-plate 1213, a fourth sub-plate 1214 and a fifth sub-plate 1215, or it can be a folding plate structure in which the first sub-plate 1211, the second sub-plate 1212, the third sub-plate 1213, the fourth sub-plate 1214 and the fifth sub-plate 1215 formed separately are connected in sequence by welding or the like.
[0033] Specifically, the baffle 121 is an axisymmetric structure, and the symmetry axis of the baffle 121 is parallel to the second direction 20. Specifically, the first sub-plate 1211 and the second sub-plate 1212 are aligned in the first direction 10. Of course, in other embodiments, the first sub-plate 1211 and the second sub-plate 1212 may also be staggered in the first direction 10.
[0034] The baffle plate 121 is configured as a first sub-plate 1211, a second sub-plate 1212, a third sub-plate 1213, a fourth sub-plate 1214 and a fifth sub-plate 1215, so that the airflow channel 130 is a curved channel with only one bend. While ensuring that the airflow channel 130 is curved to ensure the defoaming effect, the structure of the defoaming unit 120 is simplified, making the structure of the wire mesh baffle type defoamer 100 simpler.
[0035] Please also read Figure 3 In some embodiments, the wire mesh 122 is tied and fixed to the surface of the baffle 121 by a binding rope 140. The binding rope 140 may be a wire rope that is the same as the filaments in the wire mesh 122, or may be other flexible ribbon-like or filament-like structures that are different from the filaments. The wire mesh 122 is tied to the surface of the baffle 121 by the binding rope 140 to achieve a detachable connection between the wire mesh 122 and the baffle 121, and the wire mesh 122 is easy to disassemble and assemble.
[0036] Furthermore, in some embodiments, a plurality of small holes 1216 are provided on the baffle 121. The binding rope 140 passes through the plurality of small holes 1216 and the wire mesh 122 on both sides of the baffle 121 in sequence to attach and fix the wire mesh 122 to the baffle 121. That is, the binding rope 140 passes through the small holes 1216 and the wire mesh 122 on both sides of the baffle 121 for multiple times to attach and fix the wire mesh 122 on the surface of the baffle 121 in a woven manner, thereby improving the firmness of the connection between the wire mesh 122 and the baffle 121, and making the wire mesh 122 and the surface of the baffle 121 more closely fit, which is conducive to further improving the defoaming effect. The woven attachment method can control the tightness of the binding rope 140 to ensure that the binding rope 140 does not hinder the droplets captured in the wire mesh 122 from flowing downward in the wire mesh 122.
[0037] Further, in some embodiments, the material of the binding rope 140 is the same as that of the wire mesh 122. The material of the binding rope 140 is set to be the same as that of the wire in the wire mesh 122, so that the mist in the airflow can also adhere to the binding rope 140 after colliding with the binding rope 140 and gather on the binding rope 140, so that the binding rope 140 also has the function of capturing the mist in the airflow, and reduces the probability of the binding rope 140 for the droplets captured in the wire mesh 122 to flow downward in the wire mesh 122, so as to ensure a higher defoaming effect.
[0038] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0039] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A wire mesh baffle demister, characterized in that: include: Two fixing frames are arranged at intervals along a first direction; the first direction is consistent with the overall airflow direction passing through the wire mesh baffle demister; A plurality of defoaming units are arranged at intervals along a second direction perpendicular to the first direction to form a tortuous airflow channel between two adjacent defoaming units; the defoaming units include a baffle and a wire mesh fixed to the surface of the baffle; both ends of each of the baffles are fixedly connected to two fixing frames respectively; the wire mesh completely covers the entire surface of the baffle facing the airflow channel.
2. The wire mesh baffle demister according to claim 1, characterized in that: In the spacing direction of the plurality of defoaming units, the maximum tortuosity of the airflow channel is greater than the width of the airflow channel.
3. The wire mesh baffle demister according to claim 1, characterized in that: The opening directions of both ends of the air flow channel are consistent with the first direction.
4. The wire mesh baffle demister according to claim 1, characterized in that: The baffle includes a first sub-plate, a second sub-plate, a third sub-plate, a fourth sub-plate and a fifth sub-plate which are connected in sequence; the first sub-plate and the fifth sub-plate are fixedly connected to the two fixing frames respectively; in a plane parallel to the first direction and the spacing direction of the plurality of defoaming units, the extension directions of any two adjacent sub-plates among the first sub-plate, the second sub-plate, the third sub-plate, the fourth sub-plate and the fifth sub-plate are cross-arranged, and the angles between any two adjacent sub-plates are obtuse angles.
5. The wire mesh baffle demister according to claim 1, characterized in that: The wire mesh is fixed on the surface of the baffle by binding ropes.
6. The wire mesh baffle demister according to claim 5, characterized in that: The baffle is provided with a plurality of small holes; the binding rope passes through the plurality of small holes and the wire meshes on both sides of the baffle in sequence to attach and fix the wire meshes on the baffle.
7. The wire mesh baffle demister according to claim 5, characterized in that: The material of the binding rope is the same as that of the wire mesh.