Novel sulfur dioxide flue gas pipeline sealing and breaking device

Abstract

The utility model discloses a novel sulfur dioxide flue gas pipeline sealing and breaking device, and relates to the technical field of blocking and sealing and breaking of sulfur dioxide-containing flue gas pipelines. The device comprises a sealing-off pipeline, a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is embedded above the peripheral side face of the sealing-off pipeline, the liquid outlet pipe is embedded below the sealing-off pipeline, the liquid outlet pipe and the liquid inlet pipe are oppositely arranged, one end of the liquid inlet pipe and one end of the liquid outlet pipe are communicated with the interior of the sealing-off pipeline, and a first connecting pipe is embedded in the other end of the liquid inlet pipe. A second connecting pipe is embedded in the other end of the liquid outlet pipe, first sealing rings are embedded in the upper surface of the liquid inlet pipe and the lower surface of the liquid outlet pipe, and positioning rods are embedded in one surfaces of the two first sealing rings. According to the utility model, through the pressure gauge, the liquid inlet pipe and the liquid outlet pipe, the pressure condition of the sulfur dioxide flue gas pipeline is calculated, and the liquid height required for sealing off the flue gas is calculated, so that the sulfur dioxide in the flue gas pipeline is completely blocked, and no sulfur dioxide flue gas exists in subsequent equipment and pipelines.

Description

Technical Field

[0001] The utility model belongs to the technical field of blocking and sealing of sulfur dioxide flue gas pipelines, and particularly relates to a novel sulfur dioxide flue gas pipeline sealing device. Background Technique

[0002] The sulfur dioxide flue gas sealing device is applicable to all fields of sulfuric acid production. Especially when a certain piece of equipment needs to be overhauled, the inlet and outlet flue gas pipelines of this equipment need to be sealed to prevent sulfur dioxide flue gas from entering the equipment and affecting the overhaul of the equipment. Traditional valves cannot achieve 100% flue gas sealing.

[0003] The original butterfly valves, ball valves, gate valves, etc. cannot completely seal sulfur dioxide in the sulfur dioxide flue gas pipeline. Some sulfur dioxide flue gas enters the subsequent equipment and pipelines, affecting the maintenance of the equipment and pipelines, and even causing poisoning of personnel. Content of the Utility Model

[0004] The purpose of the utility model is to provide a novel sulfur dioxide flue gas pipeline sealing device to solve the problem that the existing traditional valves cannot block the sulfur dioxide flue gas sealing with 100% tightness.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a novel sulfur dioxide flue gas pipeline sealing device, including a sealing pipeline, a liquid inlet pipe and a liquid outlet pipe. The liquid inlet pipe is embedded above the circumferential side surface of the sealing pipeline, and the liquid outlet pipe is embedded below the sealing pipeline. The liquid outlet pipe and the liquid inlet pipe are arranged opposite to each other. One end of the liquid inlet pipe and the liquid outlet pipe is communicated with the inside of the sealing pipeline. The other end of the liquid inlet pipe is embedded with a first connecting pipe, and the other end of the liquid outlet pipe is embedded with a second connecting pipe. The upper surface of the liquid inlet pipe and the lower surface of the liquid outlet pipe are both embedded with first sealing rings. One surface of each of the two first sealing rings is embedded with a positioning rod. Calculate the pressure condition of the sulfur dioxide flue gas pipeline, calculate the liquid height required to seal the flue gas, and perform % sealing on sulfur dioxide in the flue gas pipeline to ensure that there is no sulfur dioxide flue gas in the subsequent equipment and pipelines. A control valve is embedded on the circumferential side surface of the second connecting pipe.

[0007] Furthermore, one end of each of the two positioning rods respectively penetrates one surface of the two first sealing rings, and one end of each of the two positioning rods respectively penetrates the circumferential side surfaces of the liquid outlet pipe and the liquid inlet pipe.

[0008] Furthermore, the circumferential sides of the two positioning rods are respectively in sliding fit with the liquid outlet pipe and the liquid inlet pipe, and one end of each of the two positioning rods is respectively in snap fit with the first connecting pipe and the second connecting pipe.

[0009] Furthermore, pull plates are welded to the other ends of the two positioning rods. Connecting springs are welded between one surface of each of the two pull plates and the two first sealing rings, and the two connecting springs are respectively wound around the circumferential sides of the two positioning rods.

[0010] Furthermore, a pressure gauge is embedded in the circumferential side of the blocking pipe. A connecting bottom plate is welded to the lower surface of the blocking pipe. The connecting bottom plate is of an annular plate structure, and a second sealing ring is embedded in the lower surface of the connecting bottom plate.

[0011] Furthermore, the second sealing ring is of an annular plate structure. Two connecting holes are provided on the upper surface of the connecting bottom plate, and the two connecting holes are arranged oppositely.

[0012] Furthermore, connecting bolts are embedded in both of the two connecting holes, and the circumferential sides of the two connecting bolts are in sliding fit with the two connecting holes.

[0013] Furthermore, a cover is embedded in the upper surface of the blocking pipe. An air inlet and an air outlet are embedded in the upper surface of the cover. The air inlet and the air outlet are arranged oppositely, and one ends of the air inlet and the air outlet are communicated with the inside of the blocking pipe.

[0014] The utility model has the following beneficial effects:

[0015] Through the structures of the pressure gauge, the liquid inlet pipe and the liquid outlet pipe, the utility model calculates the pressure condition of the sulfur dioxide flue gas pipeline, calculates the liquid height required to block the flue gas, and blocks 100% of the sulfur dioxide in the flue gas pipeline, ensuring that there is no sulfur dioxide flue gas in the subsequent equipment and pipelines.

[0016] Of course, when implementing any product of the utility model, it is not necessarily required to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of a novel sulfur dioxide flue gas pipeline blocking device of the utility model;

[0019] Figure 2 It is a front view structural diagram of a novel sulfur dioxide flue gas pipeline blocking device of the utility model;

[0020] Figure 3This is the right - view structural schematic diagram of a new type of sulfur dioxide flue - gas pipeline blocking device of the present utility model;

[0021] Figure 4 This is the top - view structural schematic diagram of a new type of sulfur dioxide flue - gas pipeline blocking device of the present utility model.

[0022] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0023] 1. Blocking pipeline; 2. Liquid inlet pipe; 3. Liquid outlet pipe; 4. First connecting pipe; 5. Second connecting pipe; 6. First sealing ring; 7. Positioning rod; 8. Connecting spring; 9. Pulling plate; 10. Control valve; 11. Pressure gauge; 12. Connecting bottom plate; 13. Second sealing ring; 14. Connecting hole; 15. Connecting bolt; 16. Sealing cover; 17. Air inlet; 18. Air outlet. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] In the description of the present utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc. indicating orientation or positional relationships are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0026] Please refer to Figures 1-4As shown in the figure, the utility model relates to a novel sulfur dioxide flue gas pipeline blocking device, which includes a blocking pipeline 1, a liquid inlet pipe 2 and a liquid outlet pipe 3. The liquid inlet pipe 2 is embedded in the upper part of the circumferential side of the blocking pipeline 1, and the liquid outlet pipe 3 is embedded in the lower part of the blocking pipeline 1. The liquid outlet pipe 3 and the liquid inlet pipe 2 are arranged opposite to each other. One end of the liquid inlet pipe 2 and the liquid outlet pipe 3 is communicated with the inside of the blocking pipeline 1. The other end of the liquid inlet pipe 2 is embedded with a first connecting pipe 4, and the other end of the liquid outlet pipe 3 is embedded with a second connecting pipe 5. The upper surface of the liquid inlet pipe 2 and the lower surface of the liquid outlet pipe 3 are both embedded with a first sealing ring 6. One surface of each of the two first sealing rings 6 is embedded with a positioning rod 7. Calculate the pressure condition of the sulfur dioxide flue gas pipeline, calculate the liquid height required to block the flue gas, and block 100% of the sulfur dioxide in the flue gas pipeline to ensure that there is no sulfur dioxide flue gas in the subsequent equipment and pipelines. A control valve 10 is embedded in the circumferential side of the second connecting pipe 5. One end of each of the two positioning rods 7 penetrates one surface of each of the two first sealing rings 6, and one end of each of the two positioning rods 7 penetrates the circumferential sides of the liquid outlet pipe 3 and the liquid inlet pipe 2 respectively.

[0027] The circumferential sides of the two positioning rods 7 are respectively in sliding fit with the liquid outlet pipe 3 and the liquid inlet pipe 2. One end of each of the two positioning rods 7 is in clamping fit with the first connecting pipe 4 and the second connecting pipe 5 respectively. The other ends of the two positioning rods 7 are both welded with a pull plate 9. A connecting spring 8 is welded between one surface of each of the two pull plates 9 and each of the two first sealing rings 6 respectively. The two connecting springs 8 are respectively wound around the circumferential sides of the two positioning rods 7.

[0028] A pressure gauge 11 is embedded in the circumferential side of the blocking pipeline 1. The lower surface of the blocking pipeline 1 is welded with a connecting bottom plate 12. The connecting bottom plate 12 is of an annular plate structure. A second sealing ring 13 is embedded in the lower surface of the connecting bottom plate 12. The second sealing ring 13 is of an annular plate structure. Two connecting holes 14 are arranged on the upper surface of the connecting bottom plate 12. The two connecting holes 14 are arranged opposite to each other.

[0029] Two connecting bolts 15 are embedded in the two connecting holes 14 respectively. The circumferential sides of the two connecting bolts 15 are in sliding fit with the two connecting holes 14 respectively. A sealing cover 16 is embedded in the upper surface of the blocking pipeline 1. An air inlet 17 and an air outlet 18 are embedded in the upper surface of the sealing cover 16. The air inlet 17 and the air outlet 18 are arranged opposite to each other. One end of the air inlet 17 and the air outlet 18 is communicated with the inside of the blocking pipeline 1.

[0030] Please refer to Figures 1-4 As shown in the figure, the utility model relates to a novel sulfur dioxide flue gas pipeline blocking device. Through the structures of the pressure gauge 11, the liquid inlet pipe 2 and the liquid outlet pipe 3, calculate the pressure condition of the sulfur dioxide flue gas pipeline, calculate the liquid height required to block the flue gas, and block 100% of the sulfur dioxide in the flue gas pipeline to ensure that there is no sulfur dioxide flue gas in the subsequent equipment and pipelines; when it is necessary to block the pipeline flue gas, feed liquid from the liquid inlet pipe 2 to a certain liquid level to block the air inlet pipe. When it is necessary to ventilate, empty the liquid level from the bottom liquid outlet pipe 3.

[0031] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A novel sulfur dioxide flue gas pipeline blocking device, comprising a blocking pipeline (1), a liquid inlet pipe (2) and a liquid outlet pipe (3), characterized in that: The liquid inlet pipe (2) is fitted on the upper side of the circumferential side of the blocking pipe (1), the liquid outlet pipe (3) is fitted below the blocking pipe (1), the liquid outlet pipe (3) and the liquid inlet pipe (2) are arranged opposite to each other, one ends of the liquid inlet pipe (2) and the liquid outlet pipe (3) are communicated with the inside of the blocking pipe (1), the other end of the liquid inlet pipe (2) is fitted with a first connecting pipe (4), the other end of the liquid outlet pipe (3) is fitted with a second connecting pipe (5), first sealing rings (6) are fitted on the upper surface of the liquid inlet pipe (2) and the lower surface of the liquid outlet pipe (3), positioning rods (7) are fitted on one surface of the two first sealing rings (6), and a control valve (10) is fitted on the circumferential side of the second connecting pipe (5).

2. A novel sulfur dioxide flue gas pipeline blocking device according to claim 1, characterized in that, One ends of the two positioning rods (7) respectively penetrate through one surface of the two first sealing rings (6), and one ends of the two positioning rods (7) respectively penetrate through the circumferential sides of the liquid outlet pipe (3) and the liquid inlet pipe (2).

3. A novel sulfur dioxide flue gas pipeline blocking device according to claim 2, characterized in that, The circumferential sides of the two positioning rods (7) are respectively in sliding fit with the liquid outlet pipe (3) and the liquid inlet pipe (2), and one ends of the two positioning rods (7) are respectively in clamping fit with the first connecting pipe (4) and the second connecting pipe (5).

4. A novel sulfur dioxide flue gas pipeline blocking device according to claim 3, characterized in that, Pulling plates (9) are welded to the other ends of the two positioning rods (7), connecting springs (8) are welded between one surface of the two pulling plates (9) and the two first sealing rings (6), and the two connecting springs (8) are respectively wound around the circumferential sides of the two positioning rods (7).

5. A novel sulfur dioxide flue gas pipeline blocking device according to claim 1, characterized in that, A pressure gauge (11) is fitted on the circumferential side of the blocking pipe (1), a connecting bottom plate (12) is welded to the lower surface of the blocking pipe (1), the connecting bottom plate (12) is of an annular plate structure, and a second sealing ring (13) is fitted on the lower surface of the connecting bottom plate (12).

6. A novel sulfur dioxide flue gas pipeline blocking device according to claim 5, characterized in that, The second sealing ring (13) is of an annular plate structure, two connecting holes (14) are arranged on the upper surface of the connecting bottom plate (12), and the two connecting holes (14) are arranged opposite to each other.

7. A novel sulfur dioxide flue gas pipeline blocking device according to claim 6, characterized in that, Connecting bolts (15) are fitted inside the two connecting holes (14), and the circumferential sides of the two connecting bolts (15) are in sliding fit with the two connecting holes (14).

8. A novel sulfur dioxide flue gas pipeline blocking device according to claim 1, characterized in that, A sealing cover (16) is fitted on the upper surface of the blocking pipe (1), an air inlet (17) and an air outlet (18) are fitted on the upper surface of the sealing cover (16), the air inlet (17) and the air outlet (18) are arranged opposite to each other, and one ends of the air inlet (17) and the air outlet (18) are communicated with the inside of the blocking pipe (1).

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