Adjustable multi-stage water seal protection device

Abstract

The utility model discloses an adjustable multi-stage water seal protection device. The adjustable multi-stage water seal protection device comprises a connecting frame, a plurality of water seals are vertically arranged on the front side of the connecting frame side by side, each water seal is in a cylinder shape with the upper portion and the lower portion open, an exhaust assembly is arranged at the top of each water seal, a drainage assembly is arranged at the bottom of each water seal, and a connecting pipeline for communicating inner cavities of every two adjacent water seals is detachably arranged between every two adjacent water seals. The water seal comprises a first water seal pipe and a second water seal pipe which are vertically arranged at the left end and the right end, a plurality of third water seal pipes are arranged between the first water seal pipe and the second water seal pipe at intervals, the exhaust assembly and the drainage assembly are the same in structure and each comprise a first flange, a blind plate is arranged on one side of each first flange, and the first flange is connected with the first flange. And a ball valve is arranged on one side of the blind plate. The multi-stage water seal can solve the problems that when an existing multi-stage water seal is not used, due to the fact that part of accumulated water remains in an internal pipeline for a long time, the device can be corroded, the water seal is blocked, and resistance is inconvenient to adjust.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid resistance of equipment in metallurgical and chemical construction, in particular to an adjustable multi-stage water seal protection device. Background Art

[0002] In the metallurgical and petrochemical industries, both flue gas purification and SCR denitration devices require the use of ignition furnaces for material heating. The raw gas used in ignition furnaces is mostly coal gas or natural gas. As the raw gas cut-off protection device of the ignition furnace, the water seal deoxidation protection device plays an absolute cut-off role on the gas source of the entire ignition furnace, protecting the flue gas purification and CSR denitration system. For the secondary utilization of steam and waste heat recovery, steam turbines are often used as starting devices to drive generators and air compressors. The stable use of the auxiliary devices of the steam turbine determines the utilization rate of secondary resources. The multi-stage water seal is a key device for the safety performance of the steam turbine. It has a simple structure and no mechanical transmission and electrical components. All multi-stage water seals will not have problems of jamming and wear, and do not require debugging and power consumption; however, the vacuum of the condenser is not constant during use. Multi-stage water seals are generally prone to two problems: one is poor return water (increased flow resistance) and the other is leakage (reduced return water resistance). Ensure that the water level of the multi-stage water seal device is normal and there is no blockage or weld cracking inside the water seal. The traditional construction process is to simply weld the water seal. After the top of the water seal is welded, the grinding and anti-corrosion treatment of the internal fillet welds are not comprehensive. The internal pipe fixation and corrosion conditions of the water seal device cannot be judged. It is inconvenient to weld the drainage pipes in the water seal at fixed points in the device, and the welding quality cannot be judged intuitively. When the water seal has insufficient resistance, it needs to be welded again when the number of levels is increased. The welding operation is cumbersome and time-consuming, and it is impossible to accurately judge the problematic parts of the multi-stage water seal.

[0003] Therefore, when manufacturing a multi-stage water seal, it is necessary to invent a multi-stage water seal device that is detachable, easy to check the water seal quality, can be assembled in multiple stages to increase or decrease, easy to clean, and reusable, in view of the quality of the water seal device and the subsequent operating costs. Utility Model Content

[0004] The utility model provides an adjustable multi-stage water seal protection device, which can solve the problem that when the existing multi-stage water seal is not in use, some water will remain in the internal pipeline for a long time, which will corrode the device and cause water seal blockage, and it is inconvenient to adjust the resistance.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable multi-stage water seal protection device, comprising a connecting frame; a plurality of water seals are arranged in parallel and vertically on the front side of the connecting frame, the water seal is in a cylindrical shape open at the top and the bottom, an exhaust assembly is arranged on the top of the water seal, and a drain assembly is arranged on the bottom, and a connecting pipe that connects the inner cavities of the two water seals can be detachably arranged between adjacent water seals, and the connecting pipe is arranged in an inclined manner; the water seal comprises a first water seal pipe and a second water seal pipe vertically arranged at the left and right ends, a plurality of third water seal pipes are arranged between the first water seal pipe and the second water seal pipe, a water inlet is arranged on the left side of the lower end of the first water seal pipe, and a water outlet is arranged on the right side of the upper end of the second water seal pipe; the exhaust assembly and the drain assembly have the same structure, and both include a first flange fixedly connected to the first water seal pipe or the second water seal pipe or the third water seal pipe, a blind plate is detachably arranged on one side of the first flange, and a ball valve is arranged on one side of the blind plate, which is adjusted by a plurality of third water seal pipes, and a plurality of components are detachably arranged, which is convenient for installation and disassembly as well as cleaning.

[0006] Preferably, the ball valve is connected to the blind plate via a single-end thread, the single-end thread is fixedly connected to the blind plate, and the single-end thread is threadedly connected to the ball valve, which has a simple structure, convenient connection and installation.

[0007] Preferably, the connection frame includes first channel steels arranged side by side up and down, and a second channel steel connecting the two first channel steels is arranged on the left side between the two first channel steels, which has a simple structure and is easy to process.

[0008] Preferably, a plurality of pipe clamps for fixing the water seal are provided through the first channel steel, which facilitates installation.

[0009] Preferably, the connecting pipeline comprises an inclined seamless steel pipe, both ends of the seamless steel pipe are fixedly provided with elbows, and the elbows are fixedly connected with a second flange, which is easy to process.

[0010] Preferably, the upper end of the first water seal pipe, the lower end of the second water seal pipe and the upper and lower ends of the third water seal pipe are provided with a third flange connected to the second flange, and the second flange and the third flange are detachably connected to facilitate installation and disassembly and later maintenance.

[0011] Preferably, a fourth flange is installed at the water inlet, and a fifth flange is installed at the water outlet to facilitate processing.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] After the water seal of the device is welded with a flange interface, a visual inspection can be carried out on the weld part to remove the weld nodules, treat the internal weld slag and perform anti-corrosion, reduce the fall of weld nodules and weld slag from the device during use and enter other equipment through the pipeline, and perform comprehensive grinding and anti-corrosion on the weld position to increase the service life of the device. The device breaks through the blind spot of fault inspection and repair, dismantles through the connecting pipes between the multi-stage water seals, observes whether the pipeline is blocked, and dredges a single pipeline to solve the problem of multi-stage water seal blockage. The device is detachable, and when the resistance of the multi-stage water seal is not enough, the number of multi-stage water seals can be increased through flange connection, and the coating of the original multi-stage water seal will not be welded and damaged. When the device is shut down, the multi-stage water seal can be dismantled and cleaned by bolts, and then assembled directly after completion. The device has a simple structure, and the multi-stage water seal can be processed in multiple parts at the same time, and finally assembled uniformly, which improves efficiency and greatly shortens the production and installation time. The materials used in the device are all made of conventional materials. After being formed, they can be used repeatedly. The equipment can be maintained by replacing parts, which is environmentally friendly and low-cost, and has good promotion value. The invention can solve the problem that when the existing multi-stage water seal is not in use, some water remains in the internal pipeline for a long time, which will corrode the device and cause the water seal to be blocked, and it is inconvenient to adjust the resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the main structural diagram of the utility model;

[0015] Figure 2 It is a three-dimensional structural diagram of the utility model;

[0016] Figure 3 It is a three-dimensional structural diagram of the connection frame and pipe clamp of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the connecting pipeline of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the exhaust assembly of the utility model;

[0019] Figure 6 It is a side view of the first water seal pipe and the connecting pipe of the utility model.

[0020] Reference numerals:

[0021] 1. Connecting frame, 11. First channel steel, 12. Second channel steel, 2. Water seal, 21. First water seal pipe, 22. Second water seal pipe, 23. Third water seal pipe, 3. Connecting pipe, 31. Seamless steel pipe, 32. Elbow, 33. Second flange, 4. Exhaust assembly, 41. First flange, 42. Blind plate, 43. Ball valve, 44. Single-end thread, 5. Drain assembly, 6. Water inlet, 61. Fourth flange, 7. Water outlet, 71. Fifth flange, 8. Pipe clamp, 9. Third flange. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] like Figure 1-6 As shown, the utility model provides the following technical solutions to solve the problems that when the existing multi-stage water seal is not in use, the device will be corroded and the water seal will be blocked due to the residual water in the internal pipe for a long time, and the resistance is inconvenient to adjust. An adjustable multi-stage water seal protection device includes a connecting frame 1; a plurality of water seals 2 are arranged in parallel and vertically on the front side of the connecting frame 1, and the water seal 2 is in the shape of a cylinder open at the top and the bottom. The top of the water seal 2 is provided with an exhaust assembly 4, and the bottom is provided with a drain assembly 5. A connecting pipe 3 that connects the inner cavities of the two water seals can be detachably provided between adjacent water seals 2, and the connecting pipe 3 is arranged at an angle; the water seal 2 includes a first water seal pipe 2 vertically arranged at the left and right ends. 1 and a second water seal pipe 22, a plurality of third water seal pipes 23 are arranged between the first water seal pipe 21 and the second water seal pipe 22, a water inlet 6 is arranged on the left side of the lower end of the first water seal pipe 21, and a water outlet 7 is arranged on the right side of the upper end of the second water seal pipe 22; the exhaust assembly 4 and the drain assembly 5 have the same structure, both including a first flange 41 fixedly connected to the first water seal pipe 21 or the second water seal pipe 22 or the third water seal pipe 23, a blind plate 42 is detachably arranged on one side of the first flange 41, a ball valve 43 is arranged on one side of the blind plate 42, which is adjusted by the plurality of third water seal pipes 23, and a plurality of components are detachably arranged, which is convenient for installation, disassembly and cleaning.

[0024] In this embodiment, if Figure 5 As shown, the ball valve 43 is connected to the blind plate 42 via a single-end thread 44, the single-end thread 44 is fixedly connected to the blind plate 42, and the single-end thread 44 is threadedly connected to the ball valve 43, which has a simple structure, convenient connection, and convenient installation.

[0025] In this embodiment, if Figure 3 As shown, the connection frame 1 includes first channel steels 11 arranged side by side up and down, and a second channel steel 12 connecting the two first channel steels 11 is arranged on the left side between the two first channel steels 11, which has a simple structure and is easy to process.

[0026] In this embodiment, if Figure 3 As shown, a plurality of pipe clamps 8 for fixing the water seal 2 are provided through the first channel steel 11, which is convenient for installation.

[0027] In this embodiment, if Figure 4 As shown, the connecting pipe 3 includes an inclined seamless steel pipe 31, and elbows 32 are fixedly provided at both ends of the seamless steel pipe 31. A second flange 33 is fixedly connected to the elbow 32, which is easy to process.

[0028] In this embodiment, if Figure 6 As shown, the upper end of the first water seal tube 21, the lower end of the second water seal tube 22 and the upper and lower ends of the third water seal tube 23 are all provided with a third flange 9 connected to the second flange 33, and the second flange 33 and the third flange 9 are detachably connected, which is convenient for installation and disassembly and facilitates later maintenance.

[0029] In this embodiment, if Figure 1 As shown, a fourth flange 61 is installed at the water inlet 6, and a fifth flange 71 is installed at the water outlet 7, which is convenient for processing.

[0030] In this embodiment, if Figure 1 As shown, the first channel steel 11 and the second channel steel 12 are welded to form a connection frame 1, and a hole is punched on the first channel steel 11 to set a pipe clamp 8; a hole is opened in the middle of the blind plate 42 and welded to the single-head thread 44, the ball valve 43 is threadedly connected to the single-head thread 44, and the blind plate 42 and the first flange 41 are fastened by bolts to form an exhaust assembly 4 or a drain assembly 5; one end of the elbow 32 is welded to the seamless steel pipe 31, and the other end of the elbow 32 is welded to the second flange 33 to form a connecting pipeline 3; the first flange 41 is welded to the water seal 2 Welding, open a hole at the lower end of the first water seal pipe 21 and weld the water inlet 6 and the fourth flange 61, open a hole at the upper end of the second water seal pipe 22 and weld the water outlet 7 and the fifth flange 71, weld the third flange 9 at the upper end of the first water seal pipe 21, the lower end of the second water seal pipe 22, and the upper and lower ends of the third water seal pipe 23; after all parts are welded, the weld position can be fully polished and anti-corrosion treated to increase the service life. During the equipment protection process, this device regularly inspects parts to shorten the time, improve construction efficiency, and reduce construction costs.

[0031] In this embodiment, if Figure 1 As shown, the pipe clamp 8 is opened and the number of the third water seal pipes 23 is increased or decreased by removing the bolts to control the fluid resistance; the bottom drain assembly 5 is opened, and the stains attached to the inner wall of the water seal 2 can be cleaned regularly to prevent blockage. When serious blockage occurs, some parts can be directly replaced.

[0032] In this embodiment, if Figure 5 As shown, the single-end wire 44 is welded at the center of the blind plate 42. After welding, the inner and outer welds are polished for anti-corrosion treatment; the blind plate 42 is connected to the first flange 41 by bolts, and a gasket is placed at the connection position;

[0033] In this embodiment, if Figure 3 As shown, the pipe clamp 8 is fixed by opening a hole in the first channel steel 11, and the size of the pipe clamp 8 is adjusted according to the size of the water seal 2;

[0034] In this embodiment, if Figure 1 As shown, the first water seal pipe 21, the second water seal pipe 22 and the third water seal pipe 23 have the same length, and the bottom drain assembly 5 is on the same horizontal line.

[0035] In this embodiment, if Figure 1 As shown, the top exhaust assembly 4 is opened when fluid enters, and the top ball valve 43 is opened in turn to exhaust. After water emerges from the top ball valve 43 of the second water seal pipe 22, the ball valve 43 is closed, and the ball valves 43 are closed from right to left in turn. The multi-stage water seal 2 removes the air contained in the pipeline and increases the internal resistance of the water seal 2. When draining water, the top ball valve 43 is opened, and the bottom drain assembly 5 is opened to balance the atmosphere and exhaust the fluid in the water seal 2.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. An adjustable multi-stage water seal protection device, characterized in that: include: Connecting frame (1); A plurality of water seals (2) are arranged in parallel and vertically on the front side of the connection frame (1); the water seals (2) are cylindrical and open at the top and bottom; an exhaust assembly (4) is arranged at the top of the water seals (2); a drain assembly (5) is arranged at the bottom; and connecting pipes (3) are detachably arranged between adjacent water seals (2) to connect the inner cavities of the two water seals; the connecting pipes (3) are arranged in an inclined manner; The water seal (2) comprises a first water seal pipe (21) and a second water seal pipe (22) vertically arranged at left and right ends, a plurality of third water seal pipes (23) are arranged at intervals between the first water seal pipe (21) and the second water seal pipe (22), a water inlet (6) is arranged on the left side of the lower end of the first water seal pipe (21), and a water outlet (7) is arranged on the right side of the upper end of the second water seal pipe (22); The exhaust assembly (4) and the drain assembly (5) have the same structure, and both comprise a first flange (41) fixedly connected to the first water seal pipe (21) or the second water seal pipe (22) or the third water seal pipe (23); a blind plate (42) is detachably provided on one side of the first flange (41); and a ball valve (43) is provided on one side of the blind plate (42).

2. The adjustable multi-stage water seal protection device according to claim 1, characterized in that: The ball valve (43) is connected to the blind plate (42) via a single-end thread (44), the single-end thread (44) is fixedly connected to the blind plate (42), and the single-end thread (44) is threadedly connected to the ball valve (43).

3. The adjustable multi-stage water seal protection device according to claim 1, characterized in that: The connection frame (1) comprises first channel steels (11) arranged side by side up and down, and a second channel steel (12) is arranged on the left side between two of the first channel steels (11) to connect the two.

4. The adjustable multi-stage water seal protection device according to claim 3, characterized in that: A plurality of pipe clamps (8) for fixing the water seal (2) are provided through the first channel steel (11).

5. The adjustable multi-stage water seal protection device according to claim 1, characterized in that: The connecting pipe (3) comprises a seamless steel pipe (31) arranged obliquely, with elbows (32) fixedly arranged at both ends of the seamless steel pipe (31), and a second flange (33) fixedly connected to the elbow (32).

6. The adjustable multi-stage water seal protection device according to claim 5, characterized in that: The upper end of the first water seal pipe (21), the lower end of the second water seal pipe (22) and the upper and lower ends of the third water seal pipe (23) are all provided with a third flange (9) connected to the second flange (33), and the second flange (33) and the third flange (9) are detachably connected.

7. The adjustable multi-stage water seal protection device according to claim 1, characterized in that: A fourth flange (61) is installed at the water inlet (6), and a fifth flange (71) is installed at the water outlet (7).

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