Steel cylinder gas filling system

Abstract

The utility model relates to a steel cylinder gas filling system. The steel cylinder gas filling system comprises a steel cylinder, a steel cylinder main pipeline connected with the steel cylinder, a gas discharging unit and a gas filling unit, wherein the gas discharging unit and the gas filling unit are respectively connected with the steel cylinder main pipeline; the system further comprises a purging unit, and the purging unit comprises a nitrogen main pipeline and an emptying pipeline. On the basis of an original pipeline, the nitrogen main pipeline for purging and the emptying pipeline for emptying are integrated, purging and emptying treatment can be synchronously achieved, the system integration is high, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to gas filling, in particular to a cylinder gas filling system. Background Art

[0002] There are many categories of special gases, which can usually be divided into electronic gases, standard gases, environmental protection gases, medical gases, welding gases, sterilization gases, etc. They are widely used in electronics, electricity, petrochemicals, mining, steel, non-ferrous metal smelting, thermal engineering, biochemistry, environmental monitoring, medical research and diagnosis, food preservation and other fields.

[0003] After massive searches, it was found that the prior art announcement number is CN217030801U, which discloses a disilane filling system, including an integrated air intake cabinet, which includes a precooling cabinet and a negative pressure valve box, and a plurality of filling cylinders are arranged in the precooling cabinet. The bottle bodies of the filling cylinders are arranged in the precooling cabinet, and the bottle heads on the filling cylinders are connected to the main filling pipeline through the filling joints, and the main filling pipeline is respectively connected to the first filling branch, the second filling branch, the third filling branch, the fourth filling branch and the fifth filling branch. The utility model is a disilane filling system, which improves the functionality and work efficiency of the filling operation through the structural arrangement of the integrated air intake cabinet and the plurality of filling cylinders. The utility model has a high degree of automation, reasonable pipeline arrangement and is easy to use.

[0004] In summary, the existing gas filling system is generally a structure in which the inflation unit and the deflation unit are respectively connected to the cylinder to realize the inflation and deflation process of the gas cylinder. The purging and emptying treatment required before and after the inflation and deflation of the cylinder requires additional equipment to handle, resulting in low work efficiency.

[0005] In view of the above-mentioned defects, the designer actively carried out research and innovation in order to create a cylinder gas filling system to make it more valuable for industrial use. Utility Model Content

[0006] To solve any of the above technical problems, the utility model aims to provide a cylinder gas filling system.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A cylinder gas filling system comprises a cylinder, a cylinder main line connected to the cylinder, and a deflation unit and a charging unit respectively connected to the cylinder main line;

[0009] It also includes a purge unit, which includes a nitrogen main line and an exhaust line, wherein the first end of the nitrogen main line is connected to the nitrogen interface, the second end of the nitrogen main line is connected to the first end of the purge three-way valve, the first end of the exhaust line is connected to the exhaust interface, the second end of the exhaust line is connected to the second end of the purge three-way valve, the third end of the purge three-way valve is connected to the first end of the nitrogen branch line, and the second end of the nitrogen branch line is connected to the cylinder main line;

[0010] The deflation unit comprises a first deflation pipeline, a first end of the first deflation pipeline is connected to a first deflation interface, and a second end of the first deflation pipeline is connected to a cylinder main pipeline;

[0011] The inflation unit comprises a first inflation pipeline, a first end of the first inflation pipeline is connected to a first inflation interface, and a second end of the first inflation pipeline is connected to a cylinder main pipeline.

[0012] As a further improvement of the present invention, the deflation unit further includes a second deflation pipeline, a first end of the second deflation pipeline is connected to the second deflation interface, and a second end of the second deflation pipeline is connected to the first deflation pipeline.

[0013] As a further improvement of the present invention, the inflation unit also includes a second inflation pipeline, a first end of the second inflation pipeline is connected to the second inflation interface, and a second end of the second inflation pipeline is connected to the first inflation pipeline.

[0014] As a further improvement of the utility model, it also includes a reflux pipeline, a first end of the reflux pipeline is connected to the first venting pipeline, and a second end of the reflux pipeline is connected to the nitrogen branch pipeline.

[0015] As a further improvement of the utility model, a vacuum pipeline is also provided on the first deflation pipeline, a first end of the vacuum pipeline is connected to the first deflation pipeline, and a second end of the vacuum pipeline is connected to an air pump via a vacuum interface.

[0016] As a further improvement of the utility model, an exhaust gas emission pipeline is also arranged on the first exhaust gas pipeline, a first end of the exhaust gas emission pipeline is connected to the first exhaust gas pipeline, and a second end of the exhaust gas emission pipeline is connected to the exhaust gas emission interface.

[0017] By means of the above solution, the utility model has at least the following advantages:

[0018] The utility model integrates a nitrogen main pipeline for purging and an emptying pipeline for emptying on the basis of the original pipeline, which can realize purging and emptying processing simultaneously, has strong system integration and improves work efficiency;

[0019] The utility model can exhaust the excess gas through the structural arrangement of the return pipeline and the exhaust pipeline to ensure the gas pressure balance of the pipeline;

[0020] The utility model can realize the vacuuming of the cylinder and the discharge of the redundant exhaust gas synchronously through the vacuuming pipeline and the tail gas discharge pipeline.

[0021] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 The utility model is a structural schematic diagram of a cylinder gas filling system.

[0024] The meanings of the various reference numerals in the figures are as follows.

[0025] Steel cylinder 1, steel cylinder main line 2, nitrogen interface 3, nitrogen main line 4, emptying interface 5, emptying pipeline 6, nitrogen branch pipeline 7, first venting interface 8, first venting pipeline 9, second venting interface 10, second venting pipeline 11, first charging interface 12, first charging pipeline 13, second charging interface 14, second charging pipeline 15, reflux pipeline 16, vacuum pipeline 17, vacuum interface 18, exhaust pipeline 19, exhaust interface 20. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] In order to make the technical personnel in the technical field better understand the scheme of the utility model, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model usually described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model for protection, but only represents the selected embodiment of the utility model. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the utility model.

[0028] Example

[0029] like Figure 1 As shown,

[0030] A cylinder gas filling system comprises a cylinder 1, a cylinder main line 2 connected to the cylinder 1, and a deflation unit, a charging unit and a purging unit respectively connected to the cylinder main line 2.

[0031] 1. The deflation unit includes a first deflation pipeline 9 and a second deflation pipeline 11:

[0032] The first end of the first deflation pipeline 9 is connected to the first deflation interface 8 , and the second end of the first deflation pipeline 9 is connected to the cylinder main pipeline 2 .

[0033] A first end of the second air release pipeline 11 is connected to the second air release interface 10 , and a second end of the second air release pipeline 11 is connected to the first air release pipeline 9 .

[0034] 2. The inflation unit includes a first inflation pipeline 13 and a second inflation pipeline 15:

[0035] A first end of the first gas charging pipeline 13 is connected to the first gas charging interface 12 , and a second end of the first gas charging pipeline 13 is connected to the cylinder main pipeline 2 .

[0036] A first end of the second air-charging pipeline 15 is connected to the second air-charging interface 14 , and a second end of the second air-charging pipeline 15 is connected to the first air-charging pipeline 13 .

[0037] 3. The purge unit includes a nitrogen main line 4 and an exhaust line 6:

[0038] The first end of the nitrogen main line 4 is connected to the nitrogen interface 3, the second end of the nitrogen main line 4 is connected to the first end of the purge three-way valve, the first end of the emptying line 6 is connected to the emptying interface 5, the second end of the emptying line 6 is connected to the second end of the purge three-way valve, the third end of the purge three-way valve is connected to the first end of the nitrogen branch line 7, and the second end of the nitrogen branch line 7 is connected to the cylinder main line 2.

[0039] In addition, a first end of the reflux pipeline 16 is connected to the first venting pipeline 9 , and a second end of the reflux pipeline 16 is connected to the nitrogen branch pipeline 7 .

[0040] 4. A vacuum pumping pipeline 17 is also provided on the first deflation pipeline 9, a first end of the vacuum pumping pipeline 17 is connected to the first deflation pipeline 9, and a second end of the vacuum pumping pipeline 17 is connected to the vacuum pump via a vacuum pumping interface 18. The vacuum pumping process of the cylinder can be synchronously realized through the vacuum pumping pipeline.

[0041] 5. An exhaust gas discharge pipeline 19 is also provided on the first exhaust gas pipeline 9, a first end of the exhaust gas discharge pipeline 19 is connected to the first exhaust gas pipeline 9, and a second end of the exhaust gas discharge pipeline 19 is connected to the exhaust gas discharge interface 20. Through the exhaust gas discharge pipeline, the excess exhaust gas of the cylinder can be discharged synchronously.

[0042] The working principle of this utility model is briefly described as follows:

[0043] The gas charging unit composed of the first gas charging pipeline 13 and the second gas charging pipeline 15 charges the steel cylinder 1 through the steel cylinder main pipeline 2, and the steel cylinder 1 is deflated through the steel cylinder main pipeline 2 and the deflation unit composed of the first deflation pipeline 9 and the second deflation pipeline 11. Before and after the gas charging and deflation, the steel cylinder 1 needs to be purged. At this time, the high-purity nitrogen in the nitrogen main pipeline 4 enters the steel cylinder 1 through the nitrogen branch pipeline 7 and the steel cylinder main pipeline 2. During the emptying process, the gas in the steel cylinder 1 flows back to the emptying pipeline 6 through the reflux pipeline 16 and the nitrogen branch pipeline 7.

[0044] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implying the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0045] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, it can be an electrical connection, it can be a direct connection, it can be an indirect connection through an intermediate medium, and 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 utility model can be understood according to specific circumstances.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A cylinder gas filling system, comprising a cylinder (1), a cylinder main line (2) connected to the cylinder (1), and a deflation unit and a filling unit respectively connected to the cylinder main line (2); Features: It also includes a purge unit, the purge unit including a nitrogen main line (4) and an exhaust line (6), the first end of the nitrogen main line (4) is connected to the nitrogen interface (3), the second end of the nitrogen main line (4) is connected to the first end of the purge three-way valve, the first end of the exhaust line (6) is connected to the exhaust interface (5), the second end of the exhaust line (6) is connected to the second end of the purge three-way valve, the third end of the purge three-way valve is connected to the first end of the nitrogen branch line (7), and the second end of the nitrogen branch line (7) is connected to the cylinder main line (2); The deflation unit comprises a first deflation pipeline (9), a first end of the first deflation pipeline (9) is connected to a first deflation interface (8), and a second end of the first deflation pipeline (9) is connected to a cylinder main pipeline (2); The inflation unit comprises a first inflation pipeline (13), a first end of the first inflation pipeline (13) being connected to a first inflation interface (12), and a second end of the first inflation pipeline (13) being connected to a cylinder main pipeline (2).

2. A cylinder gas filling system as claimed in claim 1, characterized in that: The deflation unit further comprises a second deflation pipeline (11), a first end of the second deflation pipeline (11) being connected to the second deflation interface (10), and a second end of the second deflation pipeline (11) being connected to the first deflation pipeline (9).

3. A cylinder gas filling system as claimed in claim 1, characterized in that: The inflation unit further comprises a second inflation pipeline (15), a first end of the second inflation pipeline (15) being connected to the second inflation interface (14), and a second end of the second inflation pipeline (15) being connected to the first inflation pipeline (13).

4. A cylinder gas filling system as claimed in claim 1, characterized in that: It also comprises a reflux pipeline (16), wherein a first end of the reflux pipeline (16) is connected to the first venting pipeline (9), and a second end of the reflux pipeline (16) is connected to the nitrogen branch pipeline (7).

5. A cylinder gas filling system as claimed in claim 1, characterized in that: A vacuum pumping pipeline (17) is also provided on the first air release pipeline (9), a first end of the vacuum pumping pipeline (17) is connected to the first air release pipeline (9), and a second end of the vacuum pumping pipeline (17) is connected to an air pump via a vacuum pumping interface (18).

6. A cylinder gas filling system as claimed in claim 1, characterized in that: An exhaust gas emission pipeline (19) is also provided on the first exhaust gas pipeline (9), a first end of the exhaust gas emission pipeline (19) is connected to the first exhaust gas pipeline (9), and a second end of the exhaust gas emission pipeline (19) is connected to an exhaust gas emission interface (20).

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