A pressure equalizing valve water-air balancing device

Abstract

This utility model discloses a water-gas balancing device for a pressure equalization valve, relating to the field of blast furnace technology. The utility model includes a balancing device body, a main pressure equalization valve connected to the main pressure equalization pipeline, and a backup pressure equalization valve connected to the backup pressure equalization pipeline. Both the main and backup pressure equalization valves are equipped with maintenance manholes, each with a maintenance cover. Through the design of the balancing device body, when the two manual ball valves are open, condensate generated in the gas in the pressure equalization pipeline will accumulate in the U-shaped pipe. When the water level in the pipe reaches the height of the manual ball valve, the water levels on both pressure equalization valves are balanced. The water accumulated at the backup valve will be balanced to the side of the main valve and enter the hopper with the pressure equalization gas, preventing further accumulation. This effectively avoids condensate buildup, balances the water levels on both sides, and prevents pipeline swaying during valve switching, ensuring safe and smooth production.

Description

Technical Field

[0001] This utility model belongs to the field of blast furnace technology, and in particular relates to a pressure equalization valve water-gas balance device. Background Technology

[0002] During normal blast furnace production, the equalizing valve is a key piece of equipment to ensure pressurization of the charging tank and normal charging. Therefore, it is particularly important to have two sets of equalizing valves, one in use and one on standby. Because the standby equalizing valve is not used for a long time, it is easy for gas condensate to accumulate. When switching to the standby valve, a large amount of condensate will generate a lot of kinetic energy due to the equalizing gas, which will create a large impact at pipe bends and other places, causing the pipeline to shake and the weld to crack. At the same time, it is necessary to shut down the blast furnace for repair, which will affect production. In addition, this condensate will also enter the blast furnace with the raw materials after entering the charging tank, which will have a certain impact on the blast furnace condition. Summary of the Invention

[0003] The purpose of this utility model is to provide a pressure equalization valve water-gas balancing device. Through the design of the balancing device body, when the two manual ball valves are in the open state, the condensate generated by the gas in the pressure equalization pipeline will accumulate in the U-shaped pipe. When the water volume in the pipe reaches the height of the manual ball valve, the water levels of the two pressure equalization valves are balanced. The water accumulated at the standby valve will be balanced to the side of the commonly used valve and enter the material tank with the pressure equalization gas, and will no longer accumulate. This can effectively avoid the accumulation of condensate, balance the water levels on both sides, and thus prevent pipeline shaking when switching valves, ensuring safe and smooth production.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a water-air balancing device for a pressure equalizing valve, including a balancing device body, a main pressure equalizing valve connected to the main pressure equalizing pipeline, and a backup pressure equalizing valve connected to the backup pressure equalizing pipeline. Both the main pressure equalizing valve and the backup pressure equalizing valve are provided with maintenance manholes, and maintenance covers are provided at the maintenance manholes. The balancing device body includes a U-shaped tube and two connecting tubes; The U-shaped tube is connected to two connecting tubes at both ends by right-angle connectors, and each of the two connecting tubes is equipped with a manual angle valve. Both the main equalizing valve and the standby equalizing valve have external threaded interfaces on their inspection covers. The ends of the two connecting pipes away from the U-shaped pipe are respectively connected to the external threaded interfaces on the main equalizing valve and the standby equalizing valve. The central axis of the U-shaped pipe is perpendicular to the ground, forming a bottom liquid accumulation chamber.

[0005] Furthermore, the main pressure equalization pipeline includes four pipelines, the main pressure equalization valve is installed on the pipeline at the edge, and the other three pipelines are respectively equipped with a gas recovery valve, a pressure equalization venting valve and an emergency venting valve.

[0006] Furthermore, one end of each of the four pipelines is connected to a material tank pipe via a manifold, and manual blind valves are provided at both the pre-position and post-position of the main pressure equalizing valve, gas recovery valve, pressure equalizing vent valve, and emergency vent valve.

[0007] Furthermore, the structure of the backup equalizing pipeline is the same as that of the main equalizing pipeline, and the backup equalizing pipeline and the main equalizing pipeline are symmetrically arranged, with the main equalizing valve and the backup equalizing valve arranged opposite to each other.

[0008] Furthermore, the two vertical sections of the U-shaped tube are perpendicular to the ground, the horizontal section of the U-shaped tube is located at the bottom of the vertical sections, and the horizontal section of the U-shaped tube and the two connecting pipes are all parallel to the ground.

[0009] Furthermore, the horizontal section of the U-shaped tube is provided with a spare drain port, and a drain valve is connected to the spare drain port.

[0010] This utility model has the following beneficial effects: This invention, through the design of the balancing device body, allows two manual ball valves to be in the open state. After the gas in the pressure equalization pipeline produces condensate, it will accumulate in the U-shaped pipe. When the water volume in the pipe reaches the height of the manual ball valve, the water levels of the two pressure equalization valves are balanced. The water accumulated at the standby valve will be balanced to the side of the commonly used valve and enter the material tank with the pressure equalization gas, thus preventing condensate accumulation and balancing the water levels on both sides. This avoids pipeline shaking when switching valves and ensures safe and smooth production.

[0011] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of a pressure equalization valve water-air balance device according to the present invention; Figure 2 This is a schematic diagram of the structure of the balancing device after it is connected to the main pressure equalizing valve and the backup pressure equalizing valve. The attached diagram lists the components represented by each number as follows: 1-Main pressure equalization pipeline, 2-Standard pressure equalization pipeline, 3-Balancing device body, 101-Main pressure equalization valve, 102-Inspection cover, 103-External threaded interface, 104-Gas recovery valve, 105-Pressure equalization vent valve, 106-Emergency vent valve, 107-Manifold section, 108-Tank connection pipe, 109-Manual blind flange valve, 201-Standard pressure equalization valve, 301-U-tube, 302-Connecting pipe, 303-Right angle connector, 304-Manual angle valve. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-2 As shown, this utility model is a water-air balancing device for a pressure equalization valve, including a balancing device body 3, a main pressure equalization valve 101 connected to the main pressure equalization pipeline 1, and a backup pressure equalization valve 201 connected to the backup pressure equalization pipeline 2. Both the main pressure equalization valve 101 and the backup pressure equalization valve 201 are provided with maintenance manholes, and maintenance covers 102 are provided at the maintenance manholes. The balancing device body 3 includes a U-shaped tube 301 and two connecting tubes 302; The two ends of the U-shaped tube 301 are connected to two connecting tubes 302 via right-angle connectors 303. Each of the two connecting tubes 302 is equipped with a manual angle valve 304. Both the main equalizing valve 101 and the standby equalizing valve 201 have external threaded interfaces 103 on their inspection covers 102. The ends of the two connecting pipes 302 away from the U-shaped pipe 301 are connected to the external threaded interfaces 103 on the main equalizing valve 101 and the standby equalizing valve 201, respectively. The central axis of the U-shaped pipe 301 is perpendicular to the ground, forming a bottom liquid accumulation chamber.

[0016] Among them, such as Figure 1 As shown, the main pressure equalization pipeline 1 includes four pipelines. The main pressure equalization valve 101 is installed on the pipeline at the edge. The other three pipelines are respectively equipped with a gas recovery valve 104, a pressure equalization venting valve 105, and an emergency venting valve 106. The gas recovery valve 104, the pressure equalization venting valve 105, and the emergency venting valve 106 are used for recovering residual gas, routinely venting and discharging excess gas, and quickly depressurizing when the system is overpressured or malfunctions.

[0017] Among them, such as Figure 1As shown, one end of the four pipelines is connected to the material tank pipe 108 through the manifold 107. The main pressure equalizing valve 101, the gas recovery valve 104, the pressure equalizing vent valve 105 and the emergency vent valve 106 are all equipped with manual blind valves 109 at the front and rear positions. The manual blind valves 109 are used for isolation and sealing of the pipeline during maintenance. The other end of the pipeline of the gas recovery valve 104 is used to connect to the gas recovery pipeline network, the other end of the pipeline of the equalizing vent valve 105 is used to connect to the venting chimney or silencer, and the other end of the pipeline of the emergency vent valve 106 is used to connect to the emergency venting pipe and connect to the atmosphere.

[0018] Among them, such as Figure 1 As shown, the structure of the backup equalizing line 2 is the same as that of the main equalizing line 1. The backup equalizing line 2 and the main equalizing line 1 are symmetrically arranged, and the main equalizing valve 101 and the backup equalizing valve 201 are arranged opposite to each other.

[0019] Among them, such as Figure 2 As shown, the two vertical pipe sections of the U-shaped pipe 301 are perpendicular to the ground, the horizontal pipe section of the U-shaped pipe 301 is located at the bottom of the vertical pipe section, and the horizontal pipe section of the U-shaped pipe 301 and the two connecting pipes 302 are all parallel to the ground.

[0020] Among them, the horizontal section of the U-shaped tube 301 is equipped with a spare drain port, and a drain valve is connected to the spare drain port.

[0021] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. 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.

[0022] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A pressure equalization valve water-air balancing device, comprising a balancing device body (3), a main pressure equalization valve (101) connected to a main pressure equalization pipeline (1), and a backup pressure equalization valve (201) connected to a backup pressure equalization pipeline (2), wherein both the main pressure equalization valve (101) and the backup pressure equalization valve (201) are provided with maintenance manholes, and maintenance manholes are provided with maintenance covers (102), characterized in that: The balancing device body (3) includes a U-shaped tube (301) and two connecting tubes (302). The two ends of the U-shaped tube (301) are connected to two connecting tubes (302) through right-angle connectors (303), and each of the two connecting tubes (302) is equipped with a manual angle valve (304). Both the main equalizing valve (101) and the backup equalizing valve (201) have external thread interfaces (103) on their inspection covers (102). The ends of the two connecting pipes (302) away from the U-shaped pipe (301) are respectively connected to the external thread interfaces (103) on the main equalizing valve (101) and the backup equalizing valve (201). The central axis of the U-shaped pipe (301) is perpendicular to the ground, forming a bottom liquid accumulation chamber.

2. The pressure equalizing valve water gas balancing device according to claim 1, wherein, The main pressure equalization pipeline (1) includes four pipelines. The main pressure equalization valve (101) is installed on the pipeline at the edge. The other three pipelines are respectively equipped with a gas recovery valve (104), a pressure equalization venting valve (105) and an emergency venting valve (106).

3. The pressure-equalizing valve water gas balancing device according to claim 2, characterized by, One end of each of the four pipelines is connected to the material tank pipe (108) via a manifold (107). The main pressure equalizing valve (101), gas recovery valve (104), pressure equalizing vent valve (105), and emergency vent valve (106) are equipped with manual blind valves (109) at both the front and rear positions.

4. The pressure equalizing valve water gas balancing device according to claim 3, wherein The structure of the backup equalizing line (2) is the same as that of the main equalizing line (1). The backup equalizing line (2) and the main equalizing line (1) are symmetrically arranged and the main equalizing valve (101) and the backup equalizing valve (201) are arranged opposite to each other.

5. The pressure equalizing valve water gas balancing device of claim 1, wherein, The two vertical sections of the U-shaped pipe (301) are perpendicular to the ground, the horizontal section of the U-shaped pipe (301) is located at the bottom of the vertical section, and the horizontal section of the U-shaped pipe (301) and the two connecting pipes (302) are all parallel to the ground.

6. The pressure-equalizing valve water gas balancing device according to claim 5, characterized in that, The horizontal section of the U-shaped tube (301) is provided with a spare drain port, and a drain valve is connected to the spare drain port.

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