Sealing structure of demister

Abstract

The utility model discloses a sealing structure of a demister, which relates to the technical field of demisters and comprises an upper tubesheet and a lower tubesheet which are respectively arranged above and below a demister body, the splicing mechanism is mounted on the upper tubesheet and the lower tubesheet and is used for splicing the upper tubesheet and the lower tubesheet; the splicing mechanism comprises a limiting rod and a connecting block in sliding connection with the limiting rod, a wedge-shaped block is arranged in the limiting rod in a sliding mode, a first reset spring is fixedly connected to the wedge-shaped block, and the other end of the first reset spring is fixedly connected with the limiting rod. According to the utility model, the efficient and stable splicing of the upper pattern plate or the lower pattern plate is realized, and compared with a traditional connection mode, through the matching of the limiting rods, the limiting chutes, the limiting grooves and the clamping grooves, not only is stable connection realized, but also the stress is more uniform, and the risk of breakage is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of demister technology, specifically a sealing structure for a demister. Background Technology

[0002] Industrial demisters are widely used gas-liquid separation devices in industrial production and environmental protection industries. They are mainly composed of corrugated blades, plates, and clamping strips. They effectively remove mist droplets and particulate matter from gases, ensuring the smooth operation of industrial production processes. Industrial demisters have advantages such as high efficiency, corrosion resistance, simple structure, and ease of maintenance, and are widely used in desulfurization towers, thermal power plants, and the chemical industry.

[0003] Existing demister sealing structures typically use bolts or welding to connect and fix the upper and lower tube sheets. However, bolt fixing can easily lead to tube sheet breakage due to uneven stress, affecting the stability and service life of the demister. Welding, on the other hand, lacks flexibility. Furthermore, due to gravity, the demister naturally sags, causing the demister unit to move and make errors during construction and operation, resulting in air leakage and affecting ultra-clean emissions. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model proposes a sealing structure for a demister.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A sealing structure for a demister includes an upper perforated plate and a lower perforated plate respectively disposed above and below the demister body;

[0007] A splicing mechanism is installed on the upper and lower decorative plates for splicing the upper and lower decorative plates. The splicing mechanism includes a limiting rod and a connecting block slidably connected to the limiting rod. A wedge block is slidably arranged inside the limiting rod, and a first return spring is fixedly connected to the wedge block. The other end of the first return spring is fixedly connected to the limiting rod.

[0008] As a further preferred embodiment of this technical solution: the upper plate includes a first connecting plate and a second connecting plate, and both the first connecting plate and the second connecting plate are provided with square grooves that are evenly distributed.

[0009] As a further preferred embodiment of this technical solution: the lower corrugated plate includes a third connecting plate and a fourth connecting plate, and both the third connecting plate and the fourth connecting plate are provided with circular grooves that are evenly distributed.

[0010] As a further preferred embodiment of this technical solution: the connecting blocks are provided in several groups, and the several groups of connecting blocks are respectively fixedly installed on the first connecting plate and the third connecting plate. The second connecting plate and the fourth connecting plate are each provided with slots, and the connecting blocks are slidably installed with the slots. The second connecting plate and the fourth connecting plate are each provided with limit grooves, and the limit rod is slidably installed with the limit grooves. The slots are connected to the limit grooves. The second connecting plate and the fourth connecting plate are each provided with locking slots, and the locking slots are engaged with the wedge blocks.

[0011] As a further preferred embodiment of this technical solution: a sealing plate is fixedly installed on the demister body, and a square sealing ring is provided at the upper end of the sealing plate, the square sealing ring being fitted into the inner wall of the square groove.

[0012] As a further preferred embodiment of this technical solution: the lower end of the demister body is provided with an extended straight pipe, the extended straight pipe is disposed inside the circular groove, and an annular sealing ring is provided between the circular groove and the extended straight pipe, and the length of the extended straight pipe is greater than the length of the annular sealing ring.

[0013] As a further preferred embodiment of this technical solution: both the first connecting plate and the second connecting plate are provided with fixing pins, and the sealing plate is provided with a positioning groove, which is slidably disposed with the fixing pin.

[0014] As a further preferred embodiment of this technical solution: both the No. 2 and No. 4 connecting plates are equipped with a No. 2 reset spring, and one end of the No. 2 reset spring is fixedly connected to the No. 2 or No. 4 connecting plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, efficient and stable splicing of the upper or lower decorative plate is achieved. Compared with the traditional connection method, the cooperation of the limiting rod, the limiting slide, the limiting groove and the card slot not only achieves a stable connection, but also makes the force more uniform and avoids the risk of breakage.

[0017] 2. In this utility model, the annular sealing ring between the extended straight pipe at the lower end of the demister body and the circular groove on the lower tube sheet allows the demister body to tilt and move within a certain range to compensate for concentricity deviation during installation and thermal expansion and contraction errors during operation. In addition, a square sealing ring is provided between the demister body and the upper tube sheet, allowing the demister body to tilt slightly to compensate for concentricity deviation between the demister body and the upper tube sheet. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a partial three-dimensional structural diagram of the present invention. Figure 1 ;

[0020] Figure 3 This is a partial three-dimensional structural diagram of the present invention. Figure 2 ;

[0021] Figure 4 This is a partial three-dimensional structural diagram of the present invention. Figure 3 ;

[0022] Figure 5 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 6 This is a partial exploded view of the structure of this utility model;

[0024] Figure 7 A partial structural cross-section of this utility model Figure 1 ;

[0025] Figure 8 A partial structural cross-section of this utility model Figure 2 ;

[0026] Figure 9 for Figure 8 Enlarged view of point B in the middle;

[0027] Figure 10 for Figure 6 Enlarged diagram of point C in the middle.

[0028] Legend: 100, Demister body; 101, Extended straight pipe; 200, Upper perforated plate; 201, Connecting plate No. 1; 202, Connecting plate No. 2; 203, Fixing pin; 204, Square groove; 300, Lower perforated plate; 301, Connecting plate No. 3; 302, Connecting plate No. 4; 303, Circular groove; 400, Connecting block; 401, Limiting slide groove; 500, Limiting rod; 501, Wedge block; 502, Return spring No. 1; 503, Paddle; 600, Annular sealing ring; 700, Return spring No. 2; 800, Sealing plate; 801, Positioning groove; 900, Square sealing ring; 1000, Slot; 1100, Limiting groove; 1200, Card slot. Detailed Implementation

[0029] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] Example 1:

[0031] Please see Figures 1-10 This application provides a sealing structure for a demister, including a demister body 100, an upper perforated plate 200 above the demister body 100, a lower perforated plate 300 below the demister body 100, and splicing mechanisms installed on both the upper perforated plate 200 and the lower perforated plate 300.

[0032] The splicing mechanism includes a connecting block 400 and a limiting rod 500. The connecting block 400 is provided with a limiting groove 401, and the limiting rod 500 is slidably disposed with the limiting groove 401. A wedge block 501 is slidably disposed inside the limiting rod 500. A lever 503 is fixedly connected to the wedge block 501 and is slidably disposed with the limiting rod 500. A first reset spring 502 is provided inside the limiting rod 500. One end of the first reset spring 502 is fixedly disposed with the wedge block 501, and the other end of the first reset spring 502 is fixedly disposed with the limiting rod 500. The reset spring 502 is used to pop out the limiting rod 500 for easy removal.

[0033] In this embodiment, several sets of connecting blocks 400 are provided, and the several sets of connecting blocks 400 are respectively fixedly installed on the first connecting plate 201 and the third connecting plate 301. The second connecting plate 202 and the fourth connecting plate 302 are each provided with slots 1000, and the connecting blocks 400 are slidably installed with the slots 1000. The second connecting plate 202 and the fourth connecting plate 302 are each provided with limiting grooves 1100, and the limiting rod 500 is slidably installed with the limiting grooves 1100. The slots 1000 and the limiting grooves 1100 are connected through each other. The second connecting plate 202 and the fourth connecting plate 302 are each provided with slots 1000 and also with slots 1200, which are engaged with the wedge blocks 501.

[0034] In this embodiment, a second reset spring 700 is provided inside both the second connecting plate 202 and the fourth connecting plate 302, and one end of the second reset spring 700 is fixedly connected to the second connecting plate 202 or the fourth connecting plate 302.

[0035] The working principle of this embodiment is as follows: First, the operator inserts the connecting blocks 400 on the first connecting plate 201 and the third connecting plate 301 into the slot 1000, and then inserts the limiting rod 500 into the limiting groove 1100. The limiting rod 500 then slides through the limiting groove 401, fixing the connecting block 400 inside the slot 1000. As the limiting rod 500 is inserted into the limiting groove 1100, the second return spring 700 is compressed, and the wedge-shaped block 501 inside the limiting rod 500 is retracted under the pressure of the limiting rod 500 against the inner wall of the limiting groove 1100. Inside the 1200, the first return spring 502 is also compressed until the wedge block 501 moves directly above the slot 1200. Under the elastic force of the first return spring 502, the wedge block 501 is locked inside the slot 1200. This completes the splicing of the upper plate 200 and the lower plate 300. Compared to using multiple bolts to splice multiple modular slides together, using the limiting rod 500 for limiting and fixing makes the force more even and less prone to breakage. Compared to welding, it is more flexible and ensures that if the demister body 100 is damaged, the entire upper plate 200 or lower plate 300 does not need to be removed.

[0036] Example 2:

[0037] Based on Embodiment 1, the upper decorative plate 200 includes a first connecting plate 201 and a second connecting plate 202, both of which are provided with equally spaced square grooves 204. The lower decorative plate 300 includes a third connecting plate 301 and a fourth connecting plate 302, both of which are provided with equally spaced circular grooves 303.

[0038] In this embodiment, a sealing plate 800 is fixedly provided on the demister body 100. It should be noted that the sealing plate 800 can be fixed to the upper end of the demister body 100 by means of fasteners or welding to the demister body 100. Preferably, it is a pryable limiting plate. The pryable limiting plates are respectively provided on the upper and lower sides of the sealing plate. After prying, the sealing plate 800 is restricted between the two pryable limiting plates, and can rotate and move up and down within a small range to compensate for the error of misalignment during installation.

[0039] In this embodiment, a square sealing ring 900 is provided at the upper end of the sealing plate 800. The square sealing ring 900 is fitted to the inner wall of the square groove 204. The demister body 100 can be tilted in a small range to compensate for the concentricity deviation between the demister body 100 and the upper tube sheet 200.

[0040] In this embodiment, an extended straight tube 101 is provided at the lower end of the demister body 100. The extended straight tube 101 is disposed inside the circular groove 303, and an annular sealing ring 600 is provided between the circular groove 303 and the extended straight tube 101. The length of the extended straight tube 101 is greater than the length of the annular sealing ring 600. It should be noted that the extended straight tube 101 and the annular sealing ring 600 form a sealing combination. The extended straight tube 101 is relatively long and can move relative to the annular sealing ring 600 to compensate for the errors generated when installing the demister body 100 and the movement errors caused by thermal expansion and contraction during the operation of the demister body 100.

[0041] In this embodiment, both the first connecting plate 201 and the second connecting plate 202 are provided with fixing pins 203, and the sealing plate 800 is provided with a positioning groove 801. The positioning groove 801 is slidably disposed with the fixing pin 203. The fixing pin 203 is used in conjunction with the positioning groove 801 on the sealing plate 800 to facilitate the positioning and installation of the sealing plate 800.

[0042] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. A sealing structure for a demister, characterized in that, include: The upper perforated plate (200) and the lower perforated plate (300) are respectively installed above and below the demister body (100); The splicing mechanism is installed on the upper decorative plate (200) and the lower decorative plate (300) for splicing the upper decorative plate (200) and the lower decorative plate (300); The splicing mechanism includes a limiting rod (500) and a connecting block (400) slidably connected to the limiting rod (500). A wedge block (501) is slidably arranged inside the limiting rod (500). A first reset spring (502) is fixedly connected to the wedge block (501). The other end of the first reset spring (502) is fixedly connected to the limiting rod (500).

2. The sealing structure of a demister according to claim 1, characterized in that, The upper plate (200) includes a first connecting plate (201) and a second connecting plate (202), and both the first connecting plate (201) and the second connecting plate (202) are provided with square grooves (204) that are evenly distributed.

3. The sealing structure of a demister according to claim 2, characterized in that, The lower flower plate (300) includes a third connecting plate (301) and a fourth connecting plate (302), and both the third connecting plate (301) and the fourth connecting plate (302) are provided with circular grooves (303) that are evenly distributed.

4. The sealing structure of a demister according to claim 3, characterized in that, The connecting blocks (400) are provided in several groups, and the several groups of connecting blocks (400) are respectively fixedly installed on the first connecting plate (201) and the third connecting plate (301). The second connecting plate (202) and the fourth connecting plate (302) are each provided with a slot (1000), and the connecting blocks (400) are slidably installed with the slots (1000). The second connecting plate (202) and the fourth connecting plate (302) are each provided with a limiting groove (1100), and the limiting rod (500) is slidably installed with the limiting groove (1100). The slot (1000) and the limiting groove (1100) are connected through each other. The second connecting plate (202) and the fourth connecting plate (302) are each provided with a card slot (1200), and the card slot (1200) is engaged with the wedge block (501).

5. The sealing structure of a demister according to claim 2, characterized in that, A sealing plate (800) is fixedly installed on the demister body (100), and a square sealing ring (900) is provided at the upper end of the sealing plate (800). The square sealing ring (900) is fitted to the inner wall of the square groove (204).

6. The sealing structure of a demister according to claim 3, characterized in that, The lower end of the demister body (100) is provided with an extended straight tube (101), which is located inside the circular groove (303). An annular sealing ring (600) is provided between the circular groove (303) and the extended straight tube (101), and the length of the extended straight tube (101) is greater than the length of the annular sealing ring (600).

7. The sealing structure of a demister according to claim 5, characterized in that, Both the first connecting plate (201) and the second connecting plate (202) are provided with fixing pins (203), and the sealing plate (800) is provided with a positioning groove (801). The positioning groove (801) and the fixing pin (203) are slidably disposed.

8. The sealing structure of a demister according to claim 3, characterized in that, Both the No. 2 connecting plate (202) and the No. 4 connecting plate (302) are equipped with a No. 2 return spring (700), one end of which is fixedly connected to the No. 2 connecting plate (202) or the No. 4 connecting plate (302).

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