Diffusing system

Abstract

The utility model provides a diffusion system which comprises a combustible gas pipeline and a diffusion pipeline and further comprises a first shielding gas pipeline and a second shielding gas pipeline, the diffusion pipeline is communicated with the combustible gas pipeline, the first shielding gas pipeline is communicated with the combustible gas pipeline, and the second shielding gas pipeline is communicated with the diffusion pipeline. According to the utility model, the air diffusion can be safely carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of combustible gas dispersal, in particular to a dispersal system. Background Art

[0002] The release of flammable gases (including but not limited to coal gas, natural gas, propane gas, liquefied petroleum gas, hydrogen, etc.) is often carried out in factories. Under certain circumstances, flammable gases have the risk of combustion and explosion. Every release has safety hazards. It is strictly forbidden to start a fire and unauthorized personnel are prohibited to enter. It needs to be treated with caution. Once it is not properly implemented, safety accidents will occur.

[0003] Therefore, it is necessary to improve the release system of flammable gas so that it can be released into the air safely. Utility Model Content

[0004] The utility model aims to provide a dispersing system to solve the problem of poor safety when the existing dispersing system and gas boiler are dispersing combustible gas.

[0005] In order to solve the above technical problems, the utility model provides a release system, including a combustible gas pipeline and a release pipeline, and also including a first protective gas pipeline and a second protective gas pipeline. The release pipeline is connected to the combustible gas pipeline, the first protective gas pipeline is connected to the combustible gas pipeline, and the second protective gas pipeline is connected to the release pipeline.

[0006] Optionally, a relief valve is provided on the relief pipeline, and the second protective gas pipeline is connected to a portion of the relief pipeline located downstream of the relief valve.

[0007] Optionally, a mixed gas bag is provided on the emission pipeline, and the second protective gas pipeline is connected to the mixed gas bag.

[0008] Optionally, the diameter of the gas mixing bag is larger than the diameter of the release pipe.

[0009] Optionally, it also includes a concentration detection device for detecting the concentration of combustible gas, and the concentration detection device is located at the outlet of the emission pipeline.

[0010] Optionally, the release system also includes a purge valve arranged on the first protective gas pipeline.

[0011] Optionally, a purge replacement valve is provided on the first protective gas pipeline, and the purge replacement valve is located downstream of the purge valve.

[0012] Optionally, it also includes a first inspection valve arranged on the first protective gas pipeline, and the first inspection valve is located upstream of the purge valve.

[0013] Optionally, a gas mixing valve is also included which is arranged on the second protective gas pipeline.

[0014] Optionally, it also includes a sampling pipeline and a sampling valve, the sampling pipeline is connected to the release pipeline, and the sampling valve is located on the sampling pipeline.

[0015] The utility model provides a release system, which has the following beneficial effects:

[0016] When the combustible gas begins to be released, protective gas can be introduced into the combustible gas pipeline through the first protective gas pipeline to purge the combustible gas pipeline. At the same time, protective gas can be introduced into the release pipeline through the second protective gas pipeline to dilute the mixed gas flowing through the release pipe, so that the concentration of the combustible gas in the release pipe is lower than the lower explosion line of the combustible gas, so that the combustible gas can be safely discharged into the atmosphere, and thus combustion and explosion will not occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the release system in the embodiment of the utility model;

[0018] Figure 2 yes Figure 1 A local enlarged schematic diagram of the diffusion system at point A.

[0019] Description of reference numerals:

[0020] 100-combustible gas pipeline; 200-release pipeline; 300-first protective gas pipeline; 400-second protective gas pipeline; 500-release valve; 600-gas mixing bag; 710-purge valve; 720-purge replacement valve; 730-first inspection valve; 810-gas mixing valve; 820-protective gas control valve; 830-second inspection valve; 840-combustible gas valve group; 850-sampling pipeline; 860-sampling valve; 900-concentration detection device. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme 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 part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the release system in the embodiment of the utility model. Figure 2 yes Figure 1The embodiment provides a dispersing system, including a combustible gas pipeline 100, a dispersing pipeline 200, a first protective gas pipeline 300, and a second protective gas pipeline 400. The dispersing pipeline 200 is connected to the combustible gas pipeline 100, the first protective gas pipeline 300 is connected to the combustible gas pipeline 100, and the second protective gas pipeline 400 is connected to the dispersing pipeline 200. In this way, when the combustible gas starts to be dispersed, the protective gas can be introduced into the combustible gas pipeline 100 through the first protective gas pipeline 300 to purge the combustible gas pipeline 100, and the protective gas can be introduced into the dispersing pipeline 200 through the second protective gas pipeline 400 to dilute the mixed gas flowing through the dispersing pipe, so that the concentration of the combustible gas in the dispersing pipe is lower than the lower explosion limit of the combustible gas, so that the combustible gas can be safely discharged into the atmosphere, so that combustion and explosion will not occur.

[0028] In this embodiment, a relief valve 500 is provided on the relief pipe 200, and the second protective gas pipe 400 is connected to a portion of the pipe on the relief pipe 200 located downstream of the relief valve 500. In this way, protective gas can be introduced into the relief pipe through the second protective gas pipe 400 before opening the relief valve 500 and before starting the relief. In this way, the relief process can be safe, which further improves safety.

[0029] Preferably, a gas mixing bag 600 is provided on the emission pipe 200, and the second protective gas pipe 400 is connected to the gas mixing bag 600. In this way, the mixed gas flowing through the emission pipe is conveniently mixed with the protective gas again.

[0030] Furthermore, the diameter of the gas mixing bag 600 is larger than the diameter of the release pipe 200 .

[0031] In this embodiment, the emission pipe 200 is arranged vertically.

[0032] The first protective gas pipeline 300 is a hose.

[0033] The second protective gas pipeline 400 is a hose.

[0034] The release system further includes a purge valve 710 disposed on the first protective gas pipeline 300 .

[0035] The release system further includes a purge replacement valve 720 disposed on the first protective gas pipeline 300 , and the purge replacement valve 720 is located downstream of the purge valve 710 .

[0036] The release system further includes a first inspection valve 730 disposed on the first protective gas pipeline 300 , and the first inspection valve 730 is located upstream of the purge valve 710 .

[0037] The release system further includes a gas mixing valve 810 disposed on the second protective gas pipeline 400 .

[0038] The release system further includes a shielding gas control valve 820 disposed on the second shielding gas pipeline 400 . The shielding gas control valve 820 is located upstream of the gas mixing valve 810 .

[0039] The release system further includes a second inspection valve 830 disposed on the second shielding gas pipeline 400 . The second inspection valve 830 is located upstream of the shielding gas control valve 820 .

[0040] The release system further includes a combustible gas valve group 840 , and the combustible gas valve group 840 is located upstream of the connection point between the first protective gas pipeline 300 and the combustible gas pipeline 100 .

[0041] The release system further includes a sampling pipe 850 and a sampling valve 860 . The sampling pipe 850 is in communication with the release pipe 200 , and the sampling valve 860 is located on the sampling pipe 850 .

[0042] The emission system further includes a concentration detection device 900 for detecting the concentration of combustible gas. The concentration detection device 900 is located at the outlet of the emission pipeline 200 .

[0043] Preferably, the concentration detection device 900 is associated with the protective gas control valve 820, and increases the opening of the protective gas control valve 820 when the detected concentration of the combustible gas exceeds a preset concentration, and decreases the opening of the protective gas control valve 820 when it is lower than the preset concentration.

[0044] Preferably, the concentration detection device 900 is associated with the purge valve 710 , and the purge is completed when the detected concentration of the combustible gas is zero, and the purge valve 710 is closed.

[0045] In this embodiment, the working process of the release system is as follows:

[0046] When the combustible gas is released, the first protective gas pipeline 300 is connected to the combustible gas pipeline 100, and the second protective gas pipeline 400 is connected to the release pipeline 200. The first purge valve 710 and the first purge replacement valve 720 are opened, and the purge protective gas is passed into the combustible gas pipeline 100. Then, the gas mixing valve 810 and the protective gas control valve 820 are opened, and then the release valve 500 is opened to pass the protective gas into the release pipe. After the protective gas is mixed with the combustible gas, the concentration of the mixed gas is lower than the lower explosion limit of the combustible gas, and it can be safely discharged into the atmosphere without combustion or explosion.

[0047] For different types of combustible gases in the combustible gas pipeline 100, their explosion ranges are queried or calculated, and then the release flow rate is obtained according to the diameter of the release pipeline 200, the combustible gas pressure, the temperature and other parameters, and the diameter of the first protective gas pipeline 300 and the second protective gas pipeline 400 required is calculated. The initial opening of each valve is preset so that the amount of nitrogen added can reduce the concentration of the combustible gas to below its lower explosion limit. When calculating the combustible gas flow rate, since it is always under pressure during release, it is more reliable to take the initial pressure.

[0048] A combustible gas concentration detection point is set at the outlet of the vent pipe 200, and the protective gas control valve 820 is interlocked. When the concentration exceeds the preset concentration, the opening of the protective gas control valve 820 is increased. A combustible gas concentration detection point is set at the outlet of the vent pipe, and the protective gas control valve 820 is interlocked. When the concentration is lower than the preset concentration, the opening of the protective gas control valve 820 is reduced.

[0049] In the above embodiments, the protective gas is preferably nitrogen.

[0050] The above description is only a description of the preferred embodiment of the utility model, and is not any limitation on the scope of the utility model. Any changes and modifications made by ordinary technicians in the field of the utility model based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A release system, comprising a combustible gas pipeline and a release pipeline, characterized in that: It also includes a first protective gas pipeline and a second protective gas pipeline, the release pipeline is connected to the combustible gas pipeline, the first protective gas pipeline is connected to the combustible gas pipeline, the second protective gas pipeline is connected to the release pipeline, and also includes a gas mixing valve arranged on the second protective gas pipeline.

2. The release system according to claim 1, characterized in that: The relief pipeline is provided with a relief valve, and the second protective gas pipeline is communicated with a portion of the relief pipeline located downstream of the relief valve.

3. The release system according to claim 1, characterized in that: A mixed gas bag is arranged on the emission pipeline, and the second protective gas pipeline is connected with the mixed gas bag.

4. The release system according to claim 3, characterized in that: The diameter of the gas mixing bag is larger than the diameter of the emission pipeline.

5. The release system according to claim 1, characterized in that: It also includes a concentration detection device for detecting the concentration of combustible gas, and the concentration detection device is located at the outlet of the emission pipeline.

6. The release system according to claim 1, characterized in that: The release system also includes a purge valve arranged on the first protective gas pipeline.

7. The release system according to claim 6, characterized in that: It comprises a purge replacement valve arranged on the first protective gas pipeline, and the purge replacement valve is located downstream of the purge valve.

8. The release system according to claim 6, characterized in that: It also includes a first inspection valve arranged on the first protective gas pipeline, and the first inspection valve is located upstream of the purge valve.

9. The release system according to claim 1, characterized in that: It also includes a sampling pipeline and a sampling valve. The sampling pipeline is connected to the emission pipeline, and the sampling valve is located on the sampling pipeline.

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