Industrial oxygen filling system

Abstract

The utility model discloses an industrial oxygen filling system which comprises a high-oxygen storage tank, a common oxygen storage tank, a plunger pump, a confluence pipeline, a chromatographic instrument and an emptying distribution device, the high oxygen storage tank and the common oxygen storage tank are both connected to a suction connector of the plunger pump, a discharge connector of the plunger pump is connected with the confluence pipeline, and the confluence pipeline is composed of a busbar header pipe and a plurality of branch busbars arranged on the output side of the busbar header pipe in parallel; the emptying distribution device comprises an emptying pipeline, a filter, a freeze dryer, a distribution branch pipeline and a collection storage tank. When filling types are switched, a chromatographic instrument is used for real-time detection, pipeline emptying is carried out through an emptying distribution device, pretreatment is carried out in the pipeline emptying process, and oxygen is stored in each collection storage tank according to the purity, so that integrated filling of various types of oxygen can be realized, resource waste during switching can be effectively reduced, and the cost is reduced. And the overall efficiency and economic benefits of the system are improved.

Description

Technical Field

[0001] This utility model relates to the field of oxygen filling technology, and in particular to an industrial oxygen filling system. Background Technology

[0002] Existing oxygen filling systems typically consist of multiple independent filling systems based on the type of oxygen, such as general industrial oxygen or high-purity oxygen. Each system includes an independent storage tank, filling equipment, pipelines, and control devices. While this design can meet the filling needs of different types of oxygen, the need for separate systems for each type results in a large number of devices, system complexity, and significant space requirements, increasing investment costs and maintenance difficulties. To address these issues, those skilled in the art have proposed a technical solution that utilizes a single set of pipelines for filling various types of storage tanks. This not only reduces redundant investment in equipment but also improves system integration and flexibility. However, this integrated solution has encountered new technical problems during implementation. When switching from filling one type of oxygen to another, residual gas in the pipeline must be vented to ensure the purity and safety of the filling process. This venting operation leads to oxygen waste and increases operating costs. Summary of the Invention

[0003] To address the aforementioned technical problems, this utility model provides an industrial oxygen filling system. To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general description, nor is it intended to identify key / important components or to describe the scope of protection of these embodiments. Its sole purpose is to present some concepts in a simple form as a prelude to the detailed description that follows.

[0004] The present invention adopts the following technical solution:

[0005] An industrial oxygen filling system is provided, comprising: a high-oxygen storage tank, a general oxygen storage tank, a plunger pump, a manifold, a chromatograph, and an air venting and distribution device;

[0006] Both the high-oxygen storage tank and the ordinary oxygen storage tank are connected to the suction port of the plunger pump. The discharge port of the plunger pump is connected to the manifold. The manifold consists of a main manifold and several branch manifolds arranged in parallel on the output side of the main manifold. The venting and distribution device includes: a venting pipe, a filter, a freeze dryer, several distribution branch pipes, and a collection tank located at the output end of the distribution branch pipes.

[0007] Furthermore, the aforementioned industrial oxygen filling system further includes: a high-oxygen output pipe, a general oxygen output pipe, a shut-off valve, and a check valve. The inlet end of the high-oxygen output pipe is connected to the high-oxygen storage tank, and the inlet end of the general oxygen output pipe is connected to the general oxygen storage tank. The outlet ends of both the high-oxygen output pipe and the general oxygen output pipe are connected to the suction port of the plunger pump. The shut-off valve and the check valve are both installed on the high-oxygen output pipe and the general oxygen output pipe.

[0008] Furthermore, the industrial oxygen filling system further includes: a main pipe pressure gauge, a safety valve, and branch pressure gauges; the inlet end of the main manifold is connected to the discharge port of the plunger pump, the outlet end of the main manifold is connected to the inlet end of each branch manifold, the main pipe pressure gauge and the safety valve are installed on the main manifold, and the branch pressure gauges are installed on the branch manifolds.

[0009] Furthermore, the branch manifold is provided with the branch pressure gauge, the venting pipe and several filling pipes in sequence from the inlet side to the outlet side, and the filling pipes are provided with filling interfaces at the ends.

[0010] Furthermore, the outlet end of the vent pipe is connected to the inlet side of the filter, the outlet side of the filter is connected to the inlet side of the freeze dryer, and a main distribution pipe is provided on the outlet side of the freeze dryer. The outlet end of the main distribution pipe is connected to the inlet end of each of the branch distribution pipes.

[0011] Furthermore, a first sampling interface is provided on the main distribution pipeline, and the first sampling interface is connected to the chromatograph through a pipeline; a distribution control valve is provided on the distribution branch pipeline, and an venting control valve is provided on the venting pipeline.

[0012] Furthermore, a second sampling interface is provided on the high-oxygen storage tank, a third sampling interface is provided on the manifold, and a fourth sampling interface is provided on the filling pipeline. The second sampling interface, the third sampling interface, and the fourth sampling interface are connected to the chromatograph through pipelines.

[0013] The beneficial effects of this utility model are as follows: when switching filling types, the chromatograph is used for real-time detection, the pipeline is vented through the venting and distribution device, and pre-treatment is carried out during the pipeline venting process. Oxygen is stored in each collection tank according to its purity. This can not only realize the integrated filling of multiple types of oxygen, but also effectively reduce the waste of resources during switching, and improve the overall efficiency and economic benefits of the system. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0015] Figure 1 This is a schematic diagram of the structure of an industrial oxygen filling system according to this utility model. Detailed Implementation

[0016] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings. It should be understood that the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0017] like Figure 1 As shown, in some illustrative embodiments, an industrial oxygen filling system is provided, including: a high-oxygen storage tank 100, a general oxygen storage tank 200, a plunger pump 300, a manifold, a chromatograph 400, and an air venting and distribution device.

[0018] High-oxygen output pipe 110, general oxygen output pipe 210, shut-off valve 121, check valve 122

[0019] Main pressure gauge 510, safety valve 520, branch pressure gauge 610

[0020] High-purity oxygen storage tank 100 is used to store high-purity oxygen, typically with a purity of 99.5% or higher, sometimes even reaching 99.999%, and is used in fields such as medical treatment, scientific research, and electronics manufacturing. Ordinary oxygen storage tank 200 stores oxygen with a lower purity, typically below 99.2%, and is suitable for industrial applications where high oxygen purity is not required, such as welding, cutting, and metal processing.

[0021] The inlet end of the high oxygen output pipe 110 is connected to the high oxygen storage tank 100, the inlet end of the ordinary oxygen output pipe 210 is connected to the ordinary oxygen storage tank 200, and the outlet ends of the high oxygen output pipe 110 and the ordinary oxygen output pipe 210 are connected to the suction port of the plunger pump 300 through a three-way pipe.

[0022] When oxygen needs to be filled, the corresponding shut-off valve 121 is opened, and the plunger pump 300 starts working, drawing oxygen from the high-oxygen storage tank 100 or the ordinary oxygen storage tank 200. The oxygen is delivered to the plunger pump 300 through the high-oxygen output pipe 110 and the ordinary oxygen output pipe 210. The plunger pump 300 fills the gas cylinder with oxygen through the manifold for subsequent use. Both the high-oxygen output pipe 110 and the ordinary oxygen output pipe 210 are equipped with a shut-off valve 121 and a check valve 122. The shut-off valve 121 is used to open or close the oxygen flow channel, thereby controlling the flow of oxygen, and the oxygen flow rate is controlled by adjusting the valve opening to meet the needs of different filling speeds. The check valve 122 ensures that the oxygen can only flow in the set direction, preventing backflow of oxygen due to pressure changes or other reasons.

[0023] The manifold system consists of a main manifold 500 and several branch manifolds 600 arranged in parallel on the output side of the main manifold 500. Specifically, the inlet end of the main manifold 500 is connected to the discharge port of the plunger pump 300, and the outlet end of the main manifold 500 is connected to the inlet end of each branch manifold 600. Each branch manifold 600 receives oxygen from the main manifold 500. The main manifold 500 is the main pipeline into the filling room, responsible for delivering compressed oxygen to the filling room. The branch manifolds 600 are located within the filling room. Depending on the layout and requirements of the filling room, multiple branches can be set up to facilitate oxygen filling at different filling points.

[0024] A main pressure gauge 510 and a safety valve 520 are installed on the main manifold 500, and branch pressure gauges 610 are installed on the branch manifolds 600. The main pressure gauge 510 monitors the oxygen pressure in the main manifold 500 in real time. By displaying the current pressure value, operators can ensure the system operates within a safe pressure range. When the pressure in the main manifold 500 exceeds the preset safety limit, the safety valve 520 automatically opens to release excess oxygen, reducing pressure and preventing damage to pipelines and equipment due to overpressure. Once the pressure drops to a safe range, the safety valve 520 automatically closes, restoring normal operation. The branch pressure gauges 610 monitor the oxygen pressure on each branch manifold 600. By monitoring the branch pressure, the oxygen flow and pressure at each filling point can be more precisely controlled, ensuring uniform oxygen distribution across each branch manifold 600.

[0025] The venting and distribution device is used to process and distribute vented oxygen to achieve resource recycling. Specifically, it includes: venting pipe 710, filter 720, freeze dryer 730, main distribution pipe 740, several branch distribution pipes 750, and collection tank 760 located at the output end of the branch distribution pipes 750.

[0026] When switching the type of oxygen being filled, the manifold must be purged. The purging line 710 connects the branch manifold 600 to subsequent processing equipment, guiding the vented oxygen to the storage and processing flow. The outlet of the purging line 710 connects to the inlet of the filter 720, which primarily removes particles, oil, and other impurities from the oxygen to ensure its quality. The outlet of the filter 720 connects to the inlet of the freeze dryer 730, which cools the oxygen to condense moisture and then removes it, resulting in dry oxygen. A main distribution line 740 is installed at the outlet of the freeze dryer 730. The outlet of the main distribution line 740 connects to the inlet of each branch distribution line 750, distributing oxygen to different collection tanks 760 as needed. The collection tanks 760 store the treated oxygen for subsequent use or filling, enabling flexible distribution and utilization of oxygen.

[0027] The branch manifold 600 is equipped with a branch pressure gauge 610, a vent pipe 710, and several filling pipes 620 sequentially from the inlet side to the outlet side. Each filling pipe 620 has a filling interface 630 at its end, which is used to connect to the gas cylinder to be filled for oxygen filling. The inlet side of the branch manifold 600 refers to the end connected to the main manifold 500, and the other end is the outlet side of the branch manifold 600.

[0028] A distribution control valve 770 is installed on the branch pipeline 750, and a vent control valve 780 is installed on the vent pipeline 710. A first sampling interface 741 is installed on the main distribution pipeline 740, and the first sampling interface 741 is connected to the chromatograph 400 via a pipeline. When it is necessary to vent the oxygen in the manifold, the vent control valve 780 on the vent pipeline 710 is opened, and the oxygen is processed through the filter 720 and the freeze dryer 730. The chromatograph 400 captures the oxygen and detects its purity through the first sampling interface 741, and then controls the corresponding distribution control valve 770 on the branch pipeline 750 to open based on the detection results. Finally, the oxygen is collected in the collection storage tank 760. During normal filling operations, the oxygen is transported to the filling interface 630 through the filling pipeline 620 and connected to the gas cylinder to be filled. The venting and distribution device can not only effectively recover and utilize the vented oxygen, but also ensure the purity and dryness of the oxygen, improve the overall efficiency and resource utilization of the system, and at the same time, ensure the safety and convenience of oxygen filling.

[0029] A second sampling interface 120 is provided on the high-oxygen storage tank 100 for collecting oxygen samples from the tank. A third sampling interface 530 is provided on the manifold main pipe 500 for collecting samples for testing after the oxygen is compressed by the plunger pump 300 and enters the manifold main pipe. A fourth sampling interface 640 is provided on the filling pipeline 620 for collecting samples of the final product for purity verification before the oxygen is filled into the gas cylinder. The second sampling interface 120, the third sampling interface 530, and the fourth sampling interface 640 are connected to the chromatograph 400 through pipelines, which improves the quality control capability of the oxygen filling system and ensures the consistency and safety of the final product.

[0030] The second sampling interface 120, the third sampling interface 530, and the fourth sampling interface 640 collect samples from the high-oxygen storage tank 100, the manifold main pipe 500, and the filling pipeline 620, respectively, and send them to the chromatograph 400 for analysis. Once a change in filling type is detected, the system activates the venting distribution device, opens the relevant valves, and begins venting the oxygen in the pipelines. During venting, the oxygen is guided through the venting pipeline 710 to the filter 720 and the freeze dryer 730 for pretreatment. The pretreated oxygen is then transported through the main distribution pipeline 740 to each distribution branch pipeline 750. Based on the analysis results of the chromatograph 400, oxygen of different purities is stored in the corresponding collection tanks 760. In this way, the system can effectively recover and utilize vented oxygen when changing filling types, reducing resource waste, while ensuring that oxygen of different purities is correctly distributed and utilized to meet different needs. Furthermore, the integrated filling and resource recovery methods improve the overall efficiency of the system, reduce operating costs, and enhance economic benefits. By precisely controlling and managing the oxygen filling process, the system can also improve the filling speed and accuracy of oxygen, further optimizing the production process.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An industrial oxygen filling system, characterized in that, include: High-oxygen storage tanks, ordinary oxygen storage tanks, plunger pumps, manifolds, chromatographs, and venting and distribution devices; Both the high-oxygen storage tank and the ordinary oxygen storage tank are connected to the suction port of the plunger pump. The discharge port of the plunger pump is connected to the manifold. The manifold consists of a main manifold and several branch manifolds arranged in parallel on the output side of the main manifold. The venting and distribution device includes: a venting pipe, a filter, a freeze dryer, several distribution branch pipes, and a collection tank located at the output end of the distribution branch pipes.

2. The industrial oxygen filling system according to claim 1, characterized in that, Also includes: The system includes a high-oxygen output pipe, a general oxygen output pipe, a shut-off valve, and a check valve. The inlet end of the high-oxygen output pipe is connected to the high-oxygen storage tank, and the inlet end of the general oxygen output pipe is connected to the general oxygen storage tank. The outlet ends of both the high-oxygen output pipe and the general oxygen output pipe are connected to the suction port of the plunger pump. The shut-off valve and the check valve are installed on both the high-oxygen output pipe and the general oxygen output pipe.

3. The industrial oxygen filling system according to claim 2, characterized in that, Also includes: Main pressure gauge, safety valve, and branch pressure gauges; The inlet end of the main manifold is connected to the discharge port of the plunger pump, and the outlet end of the main manifold is connected to the inlet end of each branch manifold. The main manifold pressure gauge and the safety valve are installed on the main manifold, and the branch pressure gauges are installed on the branch manifolds.

4. An industrial oxygen filling system according to claim 3, characterized in that, The branch manifold is provided with the branch pressure gauge, the venting pipe and several filling pipes in sequence from the inlet side to the outlet side, and the filling pipes are provided with filling ports at the end.

5. An industrial oxygen filling system according to claim 4, characterized in that, The outlet end of the vent pipe is connected to the inlet side of the filter, the outlet side of the filter is connected to the inlet side of the freeze dryer, and a main distribution pipe is provided on the outlet side of the freeze dryer. The outlet end of the main distribution pipe is connected to the inlet end of each of the branch distribution pipes.

6. An industrial oxygen filling system according to claim 5, characterized in that, A first sampling interface is provided on the main distribution pipeline, and the first sampling interface is connected to the chromatograph through a pipeline; a distribution control valve is provided on the branch distribution pipeline, and an venting control valve is provided on the venting pipeline.

7. An industrial oxygen filling system according to claim 6, characterized in that, A second sampling interface is provided on the high-oxygen storage tank, a third sampling interface is provided on the manifold, and a fourth sampling interface is provided on the filling pipeline. The second sampling interface, the third sampling interface, and the fourth sampling interface are connected to the chromatograph through pipelines.

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