Automatic filling device for industrial hydrogen chloride

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By using vacuum pumps and inert gas exhaust technology in the automatic hydrogen chloride filling device, the problem of doping air during the transportation process is solved, and the high-purity transportation of hydrogen chloride is achieved, ensuring the safety and stability of the filling process.

CN222363737UActive Publication Date: 2025-01-17SHANGHAI JIEJING JICHENG CHEMICAL TECHNOLOGY CO LTD

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Patent Information

Application Number: CN202420988609.3
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-08
Publication Date: 2025-01-17
Estimated Expiration: 2034-05-08

AI Technical Summary

Technical Problem

Hydrogen chloride is easily doped with air when transported to a cylinder in the storage tank, affecting its concentration.

Method used

An automatic filling device for industrial hydrogen chloride is designed to provide a vacuum environment through a vacuum pump. The inflation pipeline is injected with inert gas such as high-purity helium exhaust air inside the pipe, and a variety of automatic valves and switch valves are used to control the delivery of hydrogen chloride to ensure the hydrogen chloride. purity.

Benefits of technology

It effectively reduces the air content inside the pipeline, ensures the purity of hydrogen chloride when transported from the storage tank to the cylinder, and ensures the sealing and safety of the filling process.

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Abstract

The utility model relates to an industrial hydrogen chloride automatic filling device which comprises a storage tank, a filling pump, a vacuum pump, a steel cylinder, a pipeline, an inflation pipeline and an exhaust pipeline, the storage tank, the filling pump and the steel cylinder are sequentially connected through the pipeline, the vacuum pump is communicated with the pipeline to provide a vacuum environment for the interior of the pipeline, the inflation pipeline is communicated between the filling pump and the steel cylinder, and the exhaust pipeline is communicated with the pipeline. Inert gas is discharged into the pipeline, the gas suction pipeline is arranged between the filling pump and the steel cylinder in a communicating mode, the inert gas in the pipeline is discharged, high-purity helium is filled into the pipeline through the gas filling pipeline, then the high-purity helium is discharged from the gas suction pipeline, and therefore air in the pipeline is discharged, the filling pump is started, and gas padding operation is conducted on the pipeline. And after the vacuum pump is started to vacuumize the pipeline, the content of air in the pipeline is greatly reduced, so that the purity of hydrogen chloride can be ensured when the hydrogen chloride is transported from the storage tank to the steel cylinder.

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Description

Technical Field

[0001] The present application relates to the technical field of gas filling, and in particular to an automatic industrial hydrogen chloride filling device. Background Art

[0002] Hydrogen chloride is a colorless, toxic gas that is asphyxiating, highly corrosive and highly diluting. It is a compressed gas at room temperature. Due to its strong corrosiveness, especially after absorbing water, almost all commonly used metals cannot withstand it. Even high-purity hydrogen chloride products will show strong corrosiveness. Therefore, the filling of hydrogen chloride requires special care and strict operating procedures. When hydrogen chloride needs to be repacked, it needs to be repacked from a larger storage tank into a smaller steel cylinder. However, it is easy to be mixed with air when transporting from the storage tank to the steel cylinder, which affects the concentration of hydrogen chloride. Utility Model Content

[0003] In view of this, the present application proposes an industrial hydrogen chloride automatic filling device to prevent the hydrogen chloride from being mixed with air.

[0004] According to one aspect of the present application, there is provided an industrial hydrogen chloride automatic filling device, comprising: a storage tank, a filling pump, a vacuum pump, a cylinder, a pipeline, a gas filling pipeline and a gas extraction pipeline;

[0005] The storage tank, the filling pump and the steel cylinder are connected in sequence through the pipeline;

[0006] The vacuum pump is connected to the pipeline to provide a vacuum environment inside the pipeline;

[0007] The inflation pipeline is connected and arranged between the filling pump and the steel cylinder to discharge the inert gas into the interior of the pipeline, and the exhaust pipeline is connected and arranged between the filling pump and the steel cylinder to discharge the inert gas inside the pipeline.

[0008] In a possible implementation, the device further includes: a first automatic one-way valve and a first automatic switch valve;

[0009] The first automatic one-way valve and the first automatic switch valve are arranged at the air outlet end of the filling pump;

[0010] The connection direction of the first automatic one-way valve is from the storage tank to the cylinder.

[0011] In one possible implementation, a pipeline filter is provided at the air outlet of the filling pump.

[0012] In a possible implementation, the air extraction pipeline includes: a first air extraction pipeline and a second air extraction pipeline;

[0013] The first air extraction pipeline is connected between the filling pump and the cylinder, and the first air extraction pipeline is provided with a second automatic one-way valve and a second automatic switch valve, and the communication direction of the second automatic one-way valve is from the inside of the pipeline to the inside of the first air extraction pipeline;

[0014] The second air extraction pipeline is connected between the filling pump and the cylinder, and is provided with a third automatic one-way valve and a third automatic switch valve. The connection direction of the third automatic one-way valve is the same as that of the second automatic one-way valve.

[0015] In a possible implementation, it further includes: a detection pipeline, a fourth automatic one-way valve, a fourth automatic switch valve and a gas detection device;

[0016] The detection pipeline is connected and arranged between the filling pump and the steel cylinder;

[0017] The detection pipeline is provided with the fourth automatic one-way valve and the fourth automatic switch valve, and the flow direction of the fourth automatic one-way valve is from the inside of the pipeline to the inside of the detection pipeline;

[0018] The gas detection device is arranged on the detection pipeline.

[0019] In one possible implementation, a fifth automatic switching valve is provided at the gas inlet end of the cylinder.

[0020] In one possible implementation, a flow meter is provided at the gas outlet of the storage tank.

[0021] In one possible implementation, a pressure gauge is provided at the gas inlet end of the cylinder.

[0022] In a possible implementation, the invention further includes: a safety valve;

[0023] Two ends of the safety valve are respectively communicated with the pipeline and the air extraction line.

[0024] In a possible implementation, the device further includes: a weighing device;

[0025] The steel cylinder is arranged on the weighing device;

[0026] The weighing device is connected to the filling pump signal.

[0027] The beneficial effects of the automatic filling device for industrial hydrogen chloride of the embodiment of the present application are as follows: before using the filling pump to transport the hydrogen chloride in the storage tank to the cylinder through the pipeline, the sealing inside the pipeline is detected, and the air inside the pipeline is exhausted. Specifically, high-purity helium is filled into the inside of the pipeline through the inflation pipeline, and then the high-purity helium is exhausted from the exhaust pipeline, thereby exhausting the air inside the pipeline. After turning on the filling pump and performing an air cushion operation on the pipeline, and turning on the vacuum pump to perform a vacuum operation on the pipeline, the air content inside the pipeline is greatly reduced, thereby ensuring the purity of hydrogen chloride when it is transported from the storage tank to the cylinder.

[0028] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present application and, together with the description, serve to explain the principles of the present application.

[0030] Figure 1 A schematic diagram showing an automatic industrial hydrogen chloride filling device according to an embodiment of the present application. DETAILED DESCRIPTION

[0031] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0032] Among them, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" 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 utility model or 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 cannot be understood as a limitation on the utility model.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0035] In addition, in order to better illustrate the present application, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0036] See also Figure 1 The industrial hydrogen chloride automatic filling device of the embodiment of the present application includes: a storage tank, a filling pump, a vacuum pump, a steel cylinder, a pipeline, a charging pipeline and an exhaust pipeline. The storage tank, the filling pump and the steel cylinder are connected in sequence through the pipeline. The vacuum pump is connected to the pipeline to provide a vacuum environment for the interior of the pipeline. The charging pipeline is connected between the filling pump and the steel cylinder to discharge inert gas into the interior of the pipeline. The exhaust pipeline is connected between the filling pump and the steel cylinder to discharge the inert gas inside the pipeline.

[0037] In this embodiment, before using the filling pump to transport the hydrogen chloride in the storage tank to the steel cylinder through the pipeline, the sealing inside the pipeline is tested and the air inside the pipeline is exhausted. Specifically, high-purity helium is filled into the inside of the pipeline through the filling pipeline, and then the high-purity helium is exhausted from the exhaust pipeline to exhaust the air inside the pipeline. After starting the filling pump and performing an air cushion operation on the pipeline, and starting the vacuum pump to perform a vacuum operation on the pipeline, the air content inside the pipeline is greatly reduced, thereby ensuring the purity of hydrogen chloride when it is transported from the storage tank to the steel cylinder.

[0038] In a specific embodiment, the industrial hydrogen chloride automatic filling device also includes: a first automatic one-way valve and a first automatic switch valve, the first automatic one-way valve and the first automatic switch valve are arranged at the air outlet end of the filling pump, and the connection direction of the first automatic one-way valve is from the storage tank to the cylinder, so that the hydrogen chloride discharged from the storage tank can only be discharged into the interior of the cylinder through the first automatic one-way valve.

[0039] In a specific embodiment, a pipeline filter is provided at the outlet end of the filling pump to remove larger solid impurities in the fluid, protect process equipment and special pipes, prevent debris from entering the equipment, damaging parts of the pipeline or clogging the pipes, thereby stabilizing the process and ensuring safe production.

[0040] In a specific embodiment, the air extraction pipeline includes: a first air extraction pipeline and a second air extraction pipeline, the first air extraction pipeline is connected and arranged between the filling pump and the steel cylinder, and the first air extraction pipeline is provided with a second automatic one-way valve and a second automatic switch valve, the connection direction of the second automatic one-way valve is from the inside of the pipeline to the inside of the first air extraction pipeline, the second air extraction pipeline is connected and arranged between the filling pump and the steel cylinder, and the second air extraction pipeline is provided with a third automatic one-way valve and a third automatic switch valve, and the connection direction of the third automatic one-way valve is the same as the connection direction of the second automatic one-way valve. By using two air extraction pipelines, the helium filled in the pipeline is further discharged to prevent the helium from stagnating in the pipeline.

[0041] In a specific embodiment, the industrial hydrogen chloride automatic filling device further includes: a detection pipeline, a fourth automatic one-way valve, a fourth automatic switch valve and a gas detection device. The detection pipeline is connected and arranged between the filling pump and the cylinder, and can communicate with the gas inside the pipeline. The detection pipeline is provided with a fourth automatic one-way valve and a fourth automatic switch valve, and the flow direction of the fourth automatic one-way valve is from the inside of the pipeline to the inside of the detection pipeline. When detecting the gas inside the pipeline, the fourth automatic one-way valve and the fourth automatic switch valve are opened to move the gas inside the pipeline to the inside of the detection pipeline. By arranging the detection device on the detection pipe, the gas composition is detected, and air will not be transported toward the inside of the pipeline.

[0042] In a specific embodiment, a fifth automatic switch valve is provided at the air inlet end of the steel cylinder. Before the pipeline sealing is detected and the air is exhausted from the inside, the fifth switch valve is in a closed state to prevent air from entering the interior of the steel cylinder. After the air is exhausted from the pipeline, the fifth automatic switch valve is opened to connect the pipeline and the steel cylinder.

[0043] In a specific embodiment, a flow meter is provided at the gas outlet of the storage tank to monitor and adjust the flow rate of the gas in the pipeline, thereby ensuring the stability and efficiency of the hydrogen chloride transportation process.

[0044] In a specific embodiment, a pressure gauge is provided at the gas inlet end of the cylinder, and by measuring the gas pressure inside the pipeline, the normal operation of hydrogen chloride in the pipeline can be ensured, potential safety hazards can be discovered in time, and corresponding measures can be taken for maintenance and repair. In addition, a sixth automatic switch valve is provided between the pressure gauge and the pipeline.

[0045] In a specific embodiment, the industrial hydrogen chloride automatic filling device also includes: a safety valve, the two ends of the safety valve are connected to the pipeline and the exhaust pipeline respectively, and the pressure inside the pipeline is controlled not to exceed the specified value, which plays an important protective role in personal safety.

[0046] In a specific embodiment, the industrial hydrogen chloride automatic filling device further includes: a weighing device, the steel cylinder is arranged on the weighing device, the weighing device is connected to the filling pump signal, and the weighing device controls the opening and closing of the filling pump by obtaining the weight of the hydrogen chloride in the steel cylinder.

[0047] In a specific embodiment, the one-way valve and the switch valve in the present application are both automatic devices, which can be realized by existing technologies and will not be described in detail here.

[0048] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An industrial hydrogen chloride automatic filling device, characterized in that: include: Storage tanks, filling pumps, vacuum pumps, cylinders, pipes, filling lines and extraction lines; The storage tank, the filling pump and the steel cylinder are connected in sequence through the pipeline; The vacuum pump is connected to the pipeline to provide a vacuum environment inside the pipeline; The inflation pipeline is connected and arranged between the filling pump and the steel cylinder to discharge the inert gas into the interior of the pipeline, and the exhaust pipeline is connected and arranged between the filling pump and the steel cylinder to discharge the inert gas inside the pipeline.

2. The automatic filling device for industrial hydrogen chloride according to claim 1, characterized in that: Also includes: A first automatic one-way valve and a first automatic on-off valve; The first automatic one-way valve and the first automatic switch valve are arranged at the air outlet end of the filling pump; The connection direction of the first automatic one-way valve is from the storage tank to the cylinder.

3. The automatic filling device for industrial hydrogen chloride according to claim 1, characterized in that: A pipeline filter is provided at the air outlet end of the filling pump.

4. The automatic filling device for industrial hydrogen chloride according to any one of claims 1 to 3, characterized in that: The air extraction pipeline comprises: a first air extraction pipeline and a second air extraction pipeline; The first air extraction pipeline is connected between the filling pump and the cylinder, and the first air extraction pipeline is provided with a second automatic one-way valve and a second automatic switch valve, and the communication direction of the second automatic one-way valve is from the inside of the pipeline to the inside of the first air extraction pipeline; The second air extraction pipeline is connected between the filling pump and the cylinder, and is provided with a third automatic one-way valve and a third automatic switch valve. The connection direction of the third automatic one-way valve is the same as that of the second automatic one-way valve.

5. The automatic filling device for industrial hydrogen chloride according to any one of claims 1 to 3, characterized in that: Also includes: Detection pipeline, fourth automatic one-way valve, fourth automatic switch valve and gas detection device; The detection pipeline is connected and arranged between the filling pump and the steel cylinder; The detection pipeline is provided with the fourth automatic one-way valve and the fourth automatic switch valve, and the flow direction of the fourth automatic one-way valve is from the inside of the pipeline to the inside of the detection pipeline; The gas detection device is arranged on the detection pipeline.

6. The automatic filling device for industrial hydrogen chloride according to claim 1, characterized in that: The gas inlet end of the steel cylinder is provided with a fifth automatic switch valve.

7. The automatic filling device for industrial hydrogen chloride according to claim 1, characterized in that: A flow meter is provided at the gas outlet end of the storage tank.

8. The automatic filling device for industrial hydrogen chloride according to claim 1, characterized in that: A pressure gauge is provided at the gas inlet end of the steel cylinder.

9. The automatic filling device for industrial hydrogen chloride according to claim 1, characterized in that: Also includes: Safety valve; Two ends of the safety valve are respectively communicated with the pipeline and the air extraction line.

10. The automatic filling device for industrial hydrogen chloride according to claim 1, characterized in that: Also includes: Weighing device; The steel cylinder is arranged on the weighing device; The weighing device is connected to the filling pump signal.