Centralized control device for nitrogen and argon pipelines

Abstract

The utility model discloses a centralized control device for nitrogen and argon pipelines, which relates to the technical field of nitrogen and argon pipelines and comprises a control box, openings are arranged at the top end and the bottom end of the control box, a plurality of pipelines are arranged in the control box, and a nitrogen flow meter or an argon flow meter is arranged on each pipeline. Each pipeline can move relatively in the control box; the pipelines with the nitrogen flow meter and the argon flow meter are centralized in the control box capable of isolating external heat, the external nitrogen pipe and the external argon pipe are respectively connected with the pipelines in the control box, and each pipeline in the control box is connected with the flow control valve, so that centralized monitoring and adjustment of the flow meters are realized; and the pipeline in the control box can move relatively, so that the control box can adapt to gas connecting pipelines connected to different positions of the outside.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen and argon gas pipelines, in particular to a centralized control device for nitrogen and argon gas pipelines. Background Art

[0002] Nitrogen and argon reduce the oxygen content in the furnace, making the gas phase in the furnace inert, thereby helping to protect workers, products and plant equipment; it eliminates the possibility of fire or explosion, protects containers from structural corrosion damage from air or moisture, and prevents air, moisture or other contaminants from entering the furnace.

[0003] When laying nitrogen and argon pipes at work sites, the flowmeter is usually installed on the pipe according to the "proximity principle", which may cause the following phenomena:

[0004] First, the flow meter control points in multiple nitrogen and argon pipelines are relatively scattered;

[0005] Second, some flow meters are close to smoke stoves that generate high temperatures.

[0006] The above phenomenon requires operators to monitor and adjust the flow of each pipeline separately, which increases the complexity and inconvenience of operation. Moreover, the performance of the flow meter will be affected or even damaged if the flow meter works under high temperature conditions for a long time, which will affect the flow monitoring and control of the nitrogen and argon pipelines and reduce the stability and reliability of the system. Utility Model Content

[0007] 1) Technical issues solved

[0008] The utility model provides a centralized control device for nitrogen and argon gas pipelines to solve the problems that existing flow monitoring points are dispersed and the flow meter is easily affected by high temperature.

[0009] 2) Technical solution

[0010] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a centralized control device for nitrogen and argon gas pipelines, comprising a control box, the top and bottom of the control box are provided with openings, a plurality of pipelines are provided in the control box, the pipelines are divided into nitrogen pipelines and argon pipelines, a nitrogen flowmeter is provided on the nitrogen pipeline, an argon flowmeter is provided on the argon pipeline, and each of the pipelines is movable inside the control box.

[0011] Furthermore, it also includes:

[0012] A first slide rail is fixedly arranged on the inner wall of the control box, and two first slide rails are symmetrically arranged;

[0013] A second slide rail, slidably connected to the first slide rail; and

[0014] The pipeline mounting frame is slidably connected to the second slide rail, and each of the pipelines is arranged on the pipeline mounting frame.

[0015] Furthermore, two ends of the second slide rail are respectively slidably connected to two symmetrical first slide rails, and two ends of the second slide rail are respectively threadedly connected with bolts, and the bolts pass through the first slide rails and are threadedly connected with nuts.

[0016] Furthermore, the pipe mounting bracket is slidably connected in the slide groove of the second slide rail, the pipe mounting bracket is threadedly connected with a bolt, and the bolt passes through the second slide rail and is threadedly connected with a nut.

[0017] Furthermore, each of the pipelines is connected to a flow control valve, and the flow control valve is used to regulate the flow of gas passing through the pipeline.

[0018] Furthermore, a heat insulation board is provided inside the control box to isolate the external temperature.

[0019] Furthermore, nitrogen pipes and argon pipes of external equipment are connected to the pipelines in the control box from openings at the top and bottom of the control box, respectively, and heat-insulating materials are laid at the openings at the top and bottom of the control box.

[0020] 3) Beneficial effects:

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] The utility model concentrates the pipelines with nitrogen flowmeter and argon flowmeter in a control box which can insulate external heat, connects the nitrogen pipe and argon pipe in the outside with the pipeline in the control box respectively, and each pipeline in the control box is connected with a flow control valve, thereby realizing the centralized monitoring and adjustment of the flowmeter, and the pipelines in the control box can be relatively moved, so as to adapt to the gas pipelines connected to different positions of the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front cross-sectional view of the utility model;

[0024] Figure 2 It is a three-dimensional diagram of the utility model;

[0025] Figure 3 It is a partial three-dimensional cross-sectional view of the utility model;

[0026] In the figure: 1. control box; 2. pipeline; 3. nitrogen flow meter; 4. argon flow meter; 5. flow control valve; 6. pipeline mounting frame; 7. first slide rail; 8. second slide rail; 9. heat insulation board. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] Combination Figures 1 to 3 A centralized control device for a nitrogen and argon gas pipeline is shown, comprising a control box 1, the top and bottom ends of which are provided with openings, a plurality of pipes 2 are provided inside the control box 1, the pipes 2 are divided into nitrogen pipes and argon pipes, a nitrogen flowmeter 3 is provided on the nitrogen pipe, an argon flowmeter 4 is provided on the argon pipe, and each pipe 2 is movable inside the control box 1.

[0030] In some embodiments, four pipes 2 are installed in the control box 1, which are divided into two nitrogen pipes and two argon pipes. Each nitrogen pipe is installed with a nitrogen flowmeter 3, specifically a digital nitrogen flowmeter, and each argon pipe is installed with an argon flowmeter 4, specifically a digital argon flowmeter.

[0031] Specifically, Figure 1 and Figure 2 As shown, four first slide rails 7 are fixedly installed on the inner wall of the control box 1, and every two first slide rails 7 are symmetrically arranged, that is, on two symmetrical inner walls of the control box 1, two first slide rails 7 are fixedly installed on each inner wall, and the first slide rails 7 on the two inner walls are symmetrical about the central axis of the control box 1.

[0032] like Figure 1 and Figure 2As shown, a second slide rail 8 is installed on two symmetrical first slide rails 7, and both ends of the second slide rail 8 are respectively slidably connected to the two symmetrical first slide rails 7, and both ends of the second slide rail 8 are respectively threadedly connected with bolts, that is, the bolts pass through the slide groove openings of the first slide rails 7 and are threadedly connected to the second slide rails 8, and the bolts are threadedly connected with nuts, and the nuts are located on the outside of the first slide rails 7. When the relative position of the second slide rail 8 on the first slide rail 7 is adjusted, the threaded adjustment nut is tightened on the first slide rail 7 to make the position of the second slide rail 8 relatively fixed.

[0033] like Figure 3 As shown, the pipe mounting frame 6 is slidably connected to the second slide rail 8, and each pipe 2 is installed on the pipe mounting frame 6. The pipe mounting frame 6 is slidably connected to the slide groove of the second slide rail 8. The position of the pipe 2 on the second slide rail 8 is changed by moving the pipe mounting frame 6 on the second slide rail 8. The pipe mounting frame 6 is threadedly connected with bolts. In some embodiments, two bolts are threadedly connected at the diagonal corners of the rectangular pipe mounting frame 6. The bolts pass through the slide groove opening of the second slide rail 8 and are threadedly connected to the pipe mounting frame 6. The bolts are threadedly connected with nuts. The nuts are located on the outside of the second slide rail 8. After the relative position of the pipe mounting frame 6 on the second slide rail 8 is adjusted, the threaded adjustment nut is tightened on the second slide rail 8 to make the position of the pipe mounting frame 6 relatively fixed.

[0034] In the above structure, the positions of the nitrogen pipeline and the argon pipeline in the control box 1 are adjusted according to the laying positions of the argon pipeline and the argon pipeline at the processing site, so that they can be conveniently connected with the nitrogen pipeline and the argon pipeline at the processing site; after determining the positions of the nitrogen pipeline and the argon pipeline in the control box 1, loosen the nut connected to the second slide rail 8 in the first slide rail 7, move the second slide rail 8 along the first slide rail 7 into position, tighten the nut connected to the second slide rail 8 in the first slide rail 7, so that the position of the second slide rail 8 on the first slide rail 7 is relatively fixed, loosen the nut connected to the pipeline mounting frame 6 of the corresponding pipeline 2, move the pipeline mounting frame 6 of the corresponding pipeline 2 along the second slide rail 8 into position, tighten the nut connected to the pipeline mounting frame 6 of the corresponding pipeline 2, so that the position of the pipeline mounting frame 6 of the corresponding pipeline 2 on the second slide rail 8 is relatively fixed, and then connect the nitrogen pipeline at the processing site to the nitrogen pipeline in the control box 1, and connect the argon pipeline at the processing site to the argon pipeline in the control box 1.

[0035] As shown in the figure, each pipeline 2 is connected to a flow control valve 5. In actual use, the flow control valve 5 is installed at the air inlet of the pipeline 2. That is, when the pipeline 2 is connected to the external air intake pipe, the flow control valve 5 is located between the air intake pipe and the flow meter. The flow control valve 5 is used to adjust the flow of the gas passing through the pipeline 2.

[0036] In some embodiments, a heat insulation board 9 is provided inside the control box 1, and the heat insulation board 9 is used to isolate the influence of external high temperature on the flow meter. For example, during the operation or shutdown of the boiler, it is necessary to remove the oxygen inside the boiler to prevent oxygen from corroding and oxidizing the metal parts. Nitrogen and argon need to be introduced to remove the oxygen and create an inert atmosphere. High temperature is generated during the operation of the boiler. The flow meter is easily damaged in a high temperature environment. A heat insulation board 9 is provided on the inner wall of the control box 1. The heat insulation board 9 is made of insulation materials, such as silicone insulation pads and rock wool boards. The silicone insulation pads have excellent high temperature resistance and softness, and are suitable for thermal insulation protection in high temperature environments. Rock wool boards are a common insulation material with good high temperature resistance and insulation properties, and are suitable for thermal insulation applications in high temperature environments. The heat insulation board 9 is used to isolate the flow meter in the box from the influence of external high temperature.

[0037] In some embodiments, Figure 1 and Figure 2 As shown, the nitrogen pipe and argon pipe of the external equipment are connected to the pipe 2 in the control box 1 from the openings at the top and bottom of the control box 1, respectively. That is, after the control box 1 is fixed in position, the nitrogen inlet pipe of the workplace is extended into the control box 1 from the opening at the bottom of the control box 1, and connected to the nitrogen pipeline in the box; the nitrogen outlet pipe of the workplace is extended into the box from the opening at the top of the control box 1, and connected to the corresponding nitrogen pipeline in the box. At this time, the flow control valve 5 and the nitrogen flow meter 3 are between the inlet pipe and the outlet pipe from bottom to top; the argon inlet pipe of the workplace is extended into the control box 1 from the opening at the bottom of the control box 1, and connected to the argon pipeline in the box; the argon outlet pipe of the workplace is extended into the box from the opening at the top of the control box 1, and connected to the corresponding argon pipeline in the box. At this time, the flow control valve 5 and the argon flow meter 4 are between the inlet pipe and the outlet pipe from bottom to top.

[0038] It should be noted that after connecting the air inlet and outlet pipes of the workplace to the corresponding pipes 2 in the control box 1, it is necessary to wrap the top opening and the bottom opening of the control box 1 with insulation materials, that is, the gap between the pipe and the opening, to ensure that the influence of the external high temperature on the flow meter in the box is isolated.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the description and drawings of the present invention shall be included in the protection scope of the present invention.

Claims

1. A centralized control device for nitrogen and argon gas pipelines, comprising a control box (1), wherein the top and bottom ends of the control box (1) are provided with openings, characterized in that: A plurality of pipelines (2) are arranged in the control box (1), and the pipelines (2) are divided into nitrogen pipelines and argon pipelines. A nitrogen flow meter (3) is arranged on the nitrogen pipeline, and an argon flow meter (4) is arranged on the argon pipeline. Each of the pipelines (2) is movable inside the control box (1).

2. A centralized control device for nitrogen and argon gas pipelines according to claim 1, characterized in that: Also includes: A first slide rail (7) is fixedly arranged on the inner wall of the control box (1), and the two first slide rails (7) are symmetrically arranged; a second slide rail (8) slidably connected to the first slide rail (7); and A pipe mounting frame (6) is slidably connected to the second slide rail (8), and each of the pipes (2) is arranged on the pipe mounting frame (6).

3. A centralized control device for nitrogen and argon gas pipelines according to claim 2, characterized in that: The two ends of the second slide rail (8) are respectively slidably connected to the two symmetrical first slide rails (7), and the two ends of the second slide rail (8) are respectively threadedly connected with bolts, and the bolts pass through the first slide rail (7) and are threadedly connected with nuts.

4. A centralized control device for nitrogen and argon gas pipelines according to claim 3, characterized in that: The pipe mounting frame (6) is slidably connected in the slide groove of the second slide rail (8), and the pipe mounting frame (6) is threadedly connected with a bolt, and the bolt passes through the second slide rail (8) and is threadedly connected with a nut.

5. A centralized control device for nitrogen and argon gas pipelines according to claim 4, characterized in that: Each of the pipelines (2) is connected to a flow control valve (5), and the flow control valve (5) is used to regulate the flow of gas passing through the pipeline (2).

6. A centralized control device for nitrogen and argon gas pipelines according to claim 5, characterized in that: A heat insulation board (9) is arranged inside the control box (1) to isolate the external temperature.

7. A centralized control device for nitrogen and argon gas pipelines according to claim 6, characterized in that: The nitrogen pipe and argon pipe of the external equipment are connected to the pipe (2) in the control box (1) from the openings at the top and bottom of the control box (1), respectively, and the openings at the top and bottom of the control box (1) are paved with heat insulation materials.

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