A tube bundle dust collector with high capture rate

Abstract

This utility model discloses a tube bundle dust collector with high capture rate, comprising: a tube bundle cylinder containing two integrated cones arranged vertically inside, each cone having a guide ring coaxially arranged inside; a removal component disposed within the tube bundle cylinder for removing droplets and particulate matter from flue gas; and a flushing water pipe located inside the tube bundle cylinder for flushing the removal component; wherein the guide ring is a multi-layer nested tubular structure, comprising a first concentric reducer, a second concentric reducer, a third concentric reducer, and a fourth concentric reducer arranged at equal intervals from the outside in. This dust collector employs a novel guide ring structure, solving the problems of excessively large gaps, low coverage, and easy detachment of the guide ring inserts in traditional guide ring structures, thereby improving the capture rate of droplets and particulate matter in flue gas.

Description

Technical Field

[0001] This utility model relates to the technical field of flue gas treatment equipment, and in particular to a tube bundle dust collector with a high capture rate. Background Technology

[0002] In industrial production, flue gas often contains a large number of droplets and particulate matter. Direct emission of these gases can cause serious environmental pollution, thus requiring dust removal and purification treatment. Tube bundle dust collectors, as a highly efficient dust removal device, are widely used in power, chemical, and metallurgical industries.

[0003] Currently, existing tube bundle dust collectors have shortcomings in structural design. In particular, the guide rings inside the tube bundle dust collectors have problems such as excessive gaps, low coverage, and easy detachment of the guide ring inserts, which affect the capture rate of droplets and particulate matter in flue gas. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a tube bundle dust collector with a high capture rate. The dust collector adopts a novel guide ring structure, which solves the problems of excessive gap, low coverage and easy detachment of the guide ring insert structure in the traditional guide ring structure, thereby improving the capture rate of droplets and particulate matter in flue gas.

[0005] This utility model provides a tube bundle dust collector with a high capture rate, comprising: The tube bundle has two integral cones arranged vertically inside, and each integral cone has a flow guide ring coaxially arranged inside; A removal component is disposed inside the tube bundle cylinder and is used to remove droplets and particulate matter from the flue gas; A flushing water pipe, located inside the tube bundle cylinder, is used to flush the removal assembly; The guide ring is a multi-layered nested tubular structure, which includes a first concentric reducer, a second concentric reducer, a third concentric reducer and a fourth concentric reducer arranged at equal intervals from the outside to the inside.

[0006] Furthermore, a plurality of first connecting rods are fixedly arranged between the first concentric reducer and the third concentric reducer, and a plurality of second connecting rods corresponding one-to-one with the first connecting rods are fixedly arranged between the second concentric reducer and the fourth concentric reducer.

[0007] Furthermore, the axes of the first, second, third, and fourth concentric reducers coincide; the bottom ends of the first, second, third, and fourth concentric reducers are flush; and the top ends of the first, second, third, and fourth concentric reducers gradually decrease radially inward along the guide ring.

[0008] Furthermore, multiple locking blocks corresponding to the first connecting rod are fixedly provided on the outer wall of the first concentric reducer, for locking the guide ring onto the inner wall of the integrated cone. The bottom wall of the third concentric reducer has through grooves that correspond one-to-one with the first connecting rods, for accommodating the second connecting rods.

[0009] Furthermore, the removal assembly includes a reverse impeller located at the bottom of the guide ring and a lower impeller disposed inside the tube bundle cylinder; both the lower impeller and the reverse impeller are provided with impeller covers, and the flushing water pipe passes through the impeller covers to penetrate the lower impeller and the reverse impeller respectively.

[0010] Furthermore, a hollow nozzle is provided at the top of the flushing water pipe, and a water-blocking ring is provided above the hollow nozzle and fixedly connected to the inner wall of the tube bundle cylinder.

[0011] Furthermore, the outer wall of the flushing water pipe is provided with two first solid nozzles located between the hollow nozzle and the lower impeller, and the outer wall of the flushing water pipe is provided with three second solid nozzles near the top of one of the guide rings.

[0012] Furthermore, three third solid nozzles are provided on the outer wall of the flushing water pipe above the other guide ring, and three fourth solid nozzles are provided on the outer wall of the flushing water pipe below the other guide ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a tube bundle dust collector with a high capture rate. The guide ring in the dust collector adopts a multi-layer nested structure of four concentric tubes with different diameters, and the axes coincide, the bottom ends are flush, and the top ends gradually decrease radially inward. This enables the flue gas to form a stable and uniform rotating airflow, which greatly improves the separation efficiency of objects and particles under centrifugal action, thereby improving the overall capture rate. In this invention, the arrangement of the first connecting rod and the second connecting rod not only ensures the connection stability between the various concentric reducers, but also further optimizes the airflow path and enhances the guiding effect. In this invention, the design of the locking block and the through groove makes it easier and more secure to install the guide ring inside the integrated cone, ensuring the structural stability of the dust collector during operation.

[0014] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a cross-sectional view of a tube bundle dust collector; Figure 2 This is a schematic diagram of the flow guide ring structure; Figure 3 This is a schematic diagram of the structure of the first connecting rod; Figure 4 This is a schematic diagram of the second connecting rod. The following are the labels in the diagram: 1. Tube bundle body, 2. Integrated cone, 3. Guide ring, 4. Removal assembly, 5. Flushing water pipe, 6. Hollow nozzle, 7. Water baffle ring, 8. First solid nozzle, 9. Second solid nozzle, 10. Third solid nozzle, 11. Fourth solid nozzle. 301. First concentric reducer; 302. Second concentric reducer; 303. Third concentric reducer; 304. Fourth concentric reducer; 305. First connecting rod; 306. Second connecting rod; 307. Locking block; 308. Through groove. 401. Reverse impeller; 402. Lower impeller; 403. Impeller cover. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0017] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] Example 1

[0019] Please refer to Figures 1-4The present invention provides a tube bundle dust collector with a high capture rate, comprising: a tube bundle cylinder 1, a removal component 4, and a flushing water pipe 5.

[0020] The tube bundle cylinder 1 is a hollow columnar structure with two integrated cone cylinders 2 arranged vertically inside. The large-diameter end of the integrated cone cylinder 2 is adapted to and connected to the inner wall of the tube bundle cylinder 1, and a guide ring 3 is coaxially arranged inside the small-diameter end of each integrated cone cylinder 2.

[0021] The removal components 4 are arranged vertically at intervals inside the tube bundle cylinder 1 to efficiently remove droplets and particulate matter from the flowing flue gas.

[0022] The flushing water pipe 5 is vertically located in the central region inside the tube bundle cylinder 1. The length of the flushing water pipe 5 extends to both ends of the tube bundle cylinder 1 and is used to periodically flush the removal component 4 and the guide ring 3. The guide ring 3 is a multi-layer nested tubular structure, which includes a first concentric reducer 301, a second concentric reducer 302, a third concentric reducer 303 and a fourth concentric reducer 304 arranged at equal intervals from the outside to the inside.

[0023] Example 2

[0024] like Figures 2-4 As shown, a plurality of first connecting rods 305 are fixedly disposed between the inner wall of the first concentric reducer 301 and the outer wall of the third concentric reducer 303, and are distributed at equal intervals along their circumference. The two ends of the first connecting rods 305 are integrally formed with the first concentric reducer 301 and the second concentric reducer 302.

[0025] A plurality of second connecting rods 306, corresponding one-to-one with the first connecting rod 305, are fixedly provided between the inner side wall of the second concentric reducer 302 and the outer side wall of the fourth concentric reducer 304. The second connecting rods 306 are staggered with the first connecting rods 305 in the circumferential direction, and the two ends of the second connecting rods 306 are integrally formed with the second concentric reducer 302 and the fourth concentric reducer 304.

[0026] The axes of the first concentric reducer 301, the second concentric reducer 302, the third concentric reducer 303 and the fourth concentric reducer 304 are completely coincident, ensuring the rotational stability of the airflow within the guide ring 3.

[0027] The bottom ends of the first concentric reducer 301, the second concentric reducer 302, the third concentric reducer 303, and the fourth concentric reducer 304 are at the same horizontal plane and are flush. The top height of the first concentric reducer 301, the second concentric reducer 302, the third concentric reducer 303, and the fourth concentric reducer 304 gradually decreases in a stepped manner along the radial direction of the guide ring 3. That is, from the first concentric reducer 301 to the fourth concentric reducer 304, the top height decreases sequentially, forming a guide structure that narrows towards the center. This allows the flue gas to form a rotating airflow more smoothly when it flows through, improving the separation efficiency of droplets and particulate matter.

[0028] Multiple locking blocks 307, corresponding one-to-one with the first connecting rod 305, are fixedly provided on the outer wall of the first concentric reducer 301. The locking block 307 is a protruding block structure, which is integrally formed with the outer wall of the first concentric reducer 301. A slot adapted to the locking block 307 is provided on the inner wall of the integral cone 2. Through the cooperation of the locking block 307 and the slot, the flow guide ring 3 can be quickly and firmly locked onto the inner wall of the integral cone 2, ensuring the structural stability of the flow guide ring 3 during operation.

[0029] The bottom wall of the third concentric reducer 303 is provided with through grooves 308 that correspond one-to-one with the first connecting rods 305. The through grooves 308 are elongated slots extending circumferentially along the third concentric reducer 303, and their dimensions are adapted to the shape of the second connecting rods 306. When the components of the guide ring 3 are assembled, the second connecting rods 306 can be accommodated in the through grooves 308, avoiding interference between the second connecting rods 306 and other components, and ensuring the compactness and stability of the overall structure of the guide ring 3.

[0030] Example 3

[0031] like Figure 1 As shown, the removal component 4 adopts a composite structure design of double-layer impeller and protective cover to achieve efficient removal of droplets and particulate matter in flue gas. It includes a reverse impeller 401 located at the bottom of the guide ring 3 and a lower impeller 402 located in the upper middle region inside the tube bundle cylinder 1. The reverse impeller 401 reverses the airflow to further enhance the collision and agglomeration effect of droplets and particulate matter, while the lower impeller 402 accelerates the airflow rotation speed and enhances the separation of tiny droplets and particulate matter through centrifugal force.

[0032] To prevent the impeller from being worn by impurities in the airflow during high-speed rotation, and to provide a stable through channel for the flushing water pipe 5, both the lower impeller 402 and the reverse impeller 401 are coaxially fixed with impeller covers 403. The impeller cover 403 is a cylindrical hollow structure with openings at both ends, and its inner wall is clearance-fitted with the outer wall of the flushing water pipe 5.

[0033] The flushing water pipe 5 extends vertically along the axial direction of the tube bundle cylinder 1, passing through the impeller cover 403 inside the lower impeller 402 and the impeller cover 403 inside the reverse impeller 401 in sequence, and finally extends to the area above the lower impeller 402. This does not affect the normal rotation of the impeller, and ensures that the flushing water can be accurately delivered to each component that needs to be flushed.

[0034] Example 4

[0035] like Figure 1 As shown, a hollow nozzle 6 is fixedly installed at the top of the flushing water pipe 5. The hollow nozzle 6 adopts an annular flow channel design and can spray a wide range of mist water flow, mainly to fully cover and flush the inner wall of the top of the tube bundle cylinder 1 and adjacent components. In order to prevent the mist water flow sprayed by the hollow nozzle 6 from being carried to the outside of the equipment by the rising flue gas or splashing into the non-flushing area and affecting the stability of the airflow, a water-blocking ring 7 is fixedly connected to the inner wall of the tube bundle cylinder 1 directly above the hollow nozzle 6.

[0036] The water-blocking ring 7 is an annular plate structure with an inner diameter slightly larger than the outer diameter of the flushing water pipe 5. The outer diameter is matched with the inner diameter of the tube bundle cylinder 1, which can effectively block the upward splashing flushing water and allow the water flow to fall back to the area to be flushed below along the edge of the water-blocking ring 7, thereby improving the utilization rate of the flushing water.

[0037] The outer wall of the flushing water pipe 5 is provided with two first solid nozzles 8 between the hollow nozzle 6 and the lower impeller 402. The solid nozzle adopts a high-pressure direct jet design, and the water jet has a strong impact force, which can accurately aim at the inner wall of the tube bundle cylinder 1 for flushing.

[0038] Three second solid nozzles 9 are provided on the outer wall of the flushing water pipe 5 near the top of one of the guide rings 3, for flushing the top of the guide ring 3 and the upper area of ​​the inner wall of the integrated cone.

[0039] The flushing water pipe 5 near the other guide ring 3 adopts a double-nozzle layout. Three third solid nozzles 10 are evenly spaced along the circumference of the outer wall of the flushing water pipe 5 directly above the guide ring 3, which are used to flush the top of the guide ring 3 and the upper part of the inner wall of the integrated cone 2. Three fourth solid nozzles 11 are correspondingly arranged on the outer wall of the flushing water pipe 5 directly below the guide ring 3. The water flow can flush the bottom of the guide ring 3 and the adjacent reverse impeller 401 from bottom to top, avoiding the accumulation of particles in the gaps of the components.

[0040] Working principle of tube bundle dust collector: When the flue gas enters the tube bundle cylinder 1, it passes through the high-speed rotation of two counter-rotating impellers 401 located at the bottom of the integrated cone cylinder 2 and the lower impeller 402 inside the tube bundle cylinder 1. This removes droplets and particulate matter from the flue gas, which is then discharged through two guide rings 3. When the system is not in use, water is delivered through the flushing water pipe 5 to the hollow nozzle 6, the first solid nozzle 8, the second solid nozzle 9, the third solid nozzle 10, and the fourth solid nozzle 11 to flush the two counter-rotating impellers 401 and the lower impeller 402. This effectively prevents particulate matter from accumulating on the outer wall of the impellers, thus ensuring incomplete dust removal and guaranteeing the long-term stable high capture rate performance of the dust collector.

[0041] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0042] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A tube bundle dust collector with high capture rate, characterized by, include: The tube bundle cylinder (1) has two integral cones (2) arranged vertically inside, and each integral cone (2) has a guide ring (3) coaxially arranged inside. The removal component (4) is disposed inside the tube bundle cylinder (1) and is used to remove droplets and particulate matter from the flue gas; A flushing water pipe (5) is located inside the tube bundle cylinder (1) and is used to flush the removal assembly (4); The guide ring (3) is a multi-layer nested tubular structure, which includes a first concentric reducer (301), a second concentric reducer (302), a third concentric reducer (303) and a fourth concentric reducer (304) arranged at equal intervals from the outside to the inside.

2. The tube bundle dust collector with high capture efficiency according to claim 1, characterized in that, A plurality of first connecting rods (305) are fixedly arranged between the first concentric reducer (301) and the third concentric reducer (303) at equal intervals along their circumference, and a plurality of second connecting rods (306) corresponding one-to-one with the first connecting rods (305) are fixedly arranged between the second concentric reducer (302) and the fourth concentric reducer (304).

3. The tube bundle dust collector with high capture efficiency according to claim 2, characterized in that, The axes of the first concentric reducer (301), the second concentric reducer (302), the third concentric reducer (303), and the fourth concentric reducer (304) coincide; the bottom ends of the first concentric reducer (301), the second concentric reducer (302), the third concentric reducer (303), and the fourth concentric reducer (304) are flush; the top ends of the first concentric reducer (301), the second concentric reducer (302), the third concentric reducer (303), and the fourth concentric reducer (304) gradually decrease radially inward along the guide ring (3).

4. The tube bundle dust collector with high capture efficiency according to claim 3, characterized in that, Multiple locking blocks (307) corresponding to the first connecting rod (305) are fixedly installed on the outer wall of the first concentric reducer (301) to lock the flow guide ring (3) onto the inner wall of the integrated cone (2). The bottom wall of the third concentric reducer (303) is provided with a through groove (308) corresponding to the first connecting rod (305) to accommodate the second connecting rod (306).

5. The tube bundle dust collector with high capture efficiency according to claim 1, characterized in that, The removal assembly (4) includes a reverse impeller (401) located at the bottom of the guide ring (3) and a lower impeller (402) disposed inside the tube bundle cylinder (1); both the lower impeller (402) and the reverse impeller (401) are provided with impeller covers (403), and the flushing water pipe (5) passes through the impeller covers (403) and the lower impeller (402) and the reverse impeller (401) respectively.

6. The tube bundle dust collector with high capture efficiency according to claim 5, characterized in that, A hollow nozzle (6) is provided at the top of the flushing water pipe (5), and a water-blocking ring (7) is provided above the hollow nozzle (6) and is fixedly connected to the inner wall of the tube bundle cylinder (1).

7. The tube bundle dust collector with high capture rate according to claim 6, characterized in that, The outer wall of the flushing water pipe (5) is provided with two first solid nozzles (8) between the hollow nozzle (6) and the lower impeller (402), and the outer wall of the flushing water pipe (5) is provided with three second solid nozzles (9) above a guide ring (3).

8. The tube bundle precipitator with high capture rate according to claim 7, characterized in that, Three third solid nozzles (10) are provided on the outer wall of the flushing water pipe (5) above the other guide ring (3), and three fourth solid nozzles (11) are provided on the outer wall of the flushing water pipe (5) below the other guide ring (3).

Images