Storage and recycling system for refined Xai

Abstract

The utility model belongs to the field of Xai gas production, and discloses a storage and recycling system for refined Xai. The storage and recycling system comprises gas storage equipment, a recycling unit and an Xai refining device, a gas outlet of the Xai refining device is connected with a gas inlet of the gas storage equipment through a pipeline, a gas outlet of the gas storage equipment is connected with one end of the recycling unit through a pipeline, and the other end of the recycling unit is connected with the gas inlet of the gas storage equipment through a pipeline. The Xai refining device is used for introducing gas into the gas storage equipment for storage, the recycling unit is used for recycling the gas in the gas storage equipment, the recycled gas is input into the gas storage equipment again, and unqualified gas in the gas storage equipment is converted into qualified gas, so that the requirements on raw materials are reduced, and the purchasing cost is reduced; the technical problem that in the Xai production process of an existing Xai refining device, due to parameter fluctuation of the device, it cannot be guaranteed that produced gas is in a qualified state all the time, and gas in a storage tank is converted into unqualified gas is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of Xai gas production, and relates to a storage and recycling system for refined Xai gas. Background Art

[0002] Xai gas is used as a cleaning medium and a pressurized propellant in the rocket liquid hydrogen fuel system in the aerospace field; as a breathing mixture for deep-sea operations in the diving field; as a heat transfer medium and a cryogenic cooling medium in the high-precision field; and as a cooling and inert gas protection in chip / fiber production, scientific research, and welding.

[0003] During the production of Xai gas, it is necessary to first extract crude Xai, then process the extracted crude Xai and introduce it into the Xai refining device to purify the crude Xai into refined Xai, and store the refined Xai in a storage tank and load it onto a vehicle through a gas filling column.

[0004] During the production of Xai gas in the Xai refining device, due to the parameter fluctuations of the device itself, it is impossible to ensure that the produced gas is always in a qualified state. The unqualified gas entering the storage tank will cause the original qualified gas to be contaminated, resulting in the gas in the storage tank becoming unqualified gas. Summary of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a storage and recycling system for refined Xai gas, which performs secondary recycling on the unqualified Xai gas in the storage tank to improve the qualified gas in the storage tank, and solves the technical problem that during the production of Xai gas by the existing Xai refining device, due to the parameter fluctuations of the device itself, it is impossible to ensure that the produced gas is always in a qualified state, resulting in the gas in the storage tank becoming unqualified gas.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a storage and recycling system for refined Xai gas, including: a gas storage device, a recycling unit, and an Xai refining device; the gas outlet of the Xai refining device is connected to the gas inlet of the gas storage device through a pipeline, the gas outlet of the gas storage device is connected to one end of the recycling unit through a pipeline, the other end of the recycling unit is connected to the gas inlet of the gas storage device through a pipeline, the Xai refining device introduces gas into the gas storage device for storage, the recycling unit recycles the gas in the gas storage device, and the recycled gas is re-input into the gas storage device.

[0008] Furthermore, it also includes a gas filling column, the gas inlet of the gas filling column is connected to the gas outlet of the gas storage device through a pipeline, and the gas outlet of the gas filling column is used to connect to a transport vehicle.

[0009] Furthermore, the gas storage device includes a storage tank, a buffer tank, and a membrane press; the buffer tank is provided with a first air inlet, a second air inlet, and a buffer air outlet. The outlet of the Xai refining device is connected to the first air inlet through a pipeline. The outlet of the buffer tank is connected to one end of the membrane press, and the other end of the membrane press is connected to the air inlet of the storage tank through a pipeline. The outlet of the recycling unit is connected to the second air inlet through a pipeline.

[0010] Furthermore, the storage tank includes a first qualified tank, a second qualified tank, and an unqualified tank. The first qualified tank, the second qualified tank, and the unqualified tank are arranged side by side. The air inlets of the first qualified tank, the second qualified tank, and the unqualified tank are connected to the other end of the membrane press through pipelines, and the air outlets are connected to the air inlet of the gas filling column or the recycling unit through pipelines.

[0011] Furthermore, the recycling unit includes a recovery membrane press, a dehydrogenation and dehydration device, and a low-temperature adsorption device; the air inlet of the recovery membrane press is connected to the outlet of the gas storage device through a pipeline. The air inlet of the dehydrogenation and dehydration device is connected to the outlet of the recovery membrane press through a pipeline. The air inlet of the low-temperature adsorption device is connected to the outlet of the dehydrogenation and dehydration device through a pipeline. The air outlet of the low-temperature adsorption device is connected to the air inlet of the gas storage device through a pipeline.

[0012] Furthermore, it further includes a detection device, which is arranged at the buffer air outlet of the buffer tank and is used to detect whether the gas output by the buffer tank is in a qualified state.

[0013] Furthermore, it further includes a control device. One end of the control device is connected to the air outlet of the storage tank through a pipeline, and the other end is connected to the detection device.

[0014] Furthermore, the state of the air outlet of the storage tank is controlled through a pipeline or a valve arranged at the air outlet of the storage tank.

[0015] Furthermore, the control device is used to control the state of the air inlets of the first qualified tank and the second qualified tank.

[0016] Furthermore, the control device is used to control the state of the air inlets of the first qualified tank, the second qualified tank, and the unqualified tank.

[0017] Compared with the prior art, the present utility model has the following beneficial technical effects:

[0018] The storage and recycling system for refined Xai of the present utility model performs secondary treatment on the gas stored in the gas storage device through the recycling unit, converts the unqualified gas in the gas storage device into qualified gas, reduces the demand for raw materials, and lowers the procurement cost.

[0019] The utility model relates to a storage and recycling system for refined Xai. The system detects the Xai produced by the Xai refining device through a detection device, and controls the opening and closing of the air inlets and outlets of the first qualified tank, the second qualified tank, and the unqualified tank in the storage tank through a control device, so as to separate the qualified gas from the unqualified gas, effectively prevent the pollution of the qualified gas by the unqualified gas, and avoid the repeated treatment of the qualified gas by the recycling unit. Brief Description of the Drawings

[0020] Figure 1 FIG. 6 is a schematic structural diagram of Embodiment 1 of a storage and recycling system for refined Xai of the present utility model;

[0021] Figure 2 FIG. 10 is a schematic structural diagram of Embodiment 2 of a storage and recycling system for refined Xai of the present utility model.

[0022] Reference Signs:

[0023] 1 - Gas storage equipment; 11 - Storage tank; 111 - First qualified tank; 112 - Second qualified tank; 113 - Unqualified tank; 12 - Buffer tank; 13 - Membrane press; 2 - Recycling unit; 21 - Recovery membrane press; 22 - Dehydrogenation and dehydration device; 23 - Low-temperature adsorption device; 3 - Xai refining device; 4 - Gas filling column. Detailed Embodiments

[0024] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1

[0026] A storage and recycling system for refined Xai of the present utility model, as Figure 1 shown, includes: gas storage equipment 1, recycling unit 2, Xai refining device 3, and gas filling column 4; the gas storage equipment 1 includes storage tank 11, buffer tank 12, and membrane press 13. The air inlet of the storage tank 11 is connected to the Xai refining device 3, and the Xai refining device 3 can introduce gas into the storage tank 11 to realize gas storage. The air inlet of the recycling unit 2 is connected to the air outlet of the storage tank 11, and the air outlet of the recycling unit 2 is connected to the air inlet of the buffer tank 12. The recycling unit 2 performs secondary recycling on the gas in the storage tank 11 and sends the gas after secondary recycling back to the storage tank 11. The air inlet of the gas filling column 4 is connected to the air outlet of the gas storage equipment 1 through a pipeline, and the air outlet of the gas filling column 4 is used to connect to a transport vehicle.

[0027] Specifically, the gas storage device 1 consists of multiple storage tanks 11. The gas extracted by the Xai refining device 3 enters the multiple storage tanks 11 through pipelines and valves to achieve gas storage. When the gas in the storage tank 11 is unqualified gas, the recycling unit 2 extracts the gas from the storage tank 11 and processes the unqualified gas into qualified gas and then sends it back to the storage tank 11 to solve the problem that the qualified gas in the storage tank group 11 is contaminated by the unqualified gas entering the storage tank 11 and turns into unqualified gas.

[0028] The buffer tank 12 is provided with a first air inlet, a second air inlet and a buffer air outlet. The first air inlet is connected to the air outlet of the Xai refining device 3, the second air inlet is connected to the air outlet of the recycling unit 2, and the buffer air outlet is connected to the storage tanks 11 through a membrane compressor 13 respectively. The membrane compressor 13 can provide the power for gas transportation in the pipeline between the buffer tank 12 and the storage tanks 11, so that the transportation speed of the gas in the pipeline is accelerated, and thus the gas storage rate is improved. At the same time, the buffer tank 12 can provide buffering for the gas entering the membrane compressor 13, making the gas volume entering the membrane compressor 13 more stable, which is beneficial to the stable operation of the membrane compressor 13.

[0029] The recycling unit 2 includes a recovery membrane compressor 21, a dehydration and dehydrogenation device 22 and a cryogenic adsorption device 23. The recovery membrane compressor 21, the dehydrogenation and dehydration device 22 and the cryogenic adsorption device 23 are connected in sequence. The air outlet of the cryogenic adsorption device 23 is connected to the second air inlet of the buffer tank 12, and the air outlet of the storage tank 11 is connected to the recovery membrane compressor 21. After secondary treatment by the dehydrogenation and dehydration device 22 and the cryogenic adsorption device 23, the qualification rate of the gas in the buffer tank 12 is improved. The recovery membrane compressor 21 provides a negative pressure environment for the recycling unit 2, so that the unqualified gas in the storage tank 11 can enter the recycling unit 2. Then, the unqualified gas is processed by the dehydrogenation and dehydration device 22 and the cryogenic adsorption device 23. The processed unqualified gas enters the buffer tank 12 through the second air inlet of the buffer tank 12 and returns to the storage tank 11 through the membrane compressor 13 to achieve storage.

[0030] A storage and recycling system for refined Xai further includes a control device and a detection device. The detection device has multiple detection sensors. The detection sensors are arranged at the buffer air outlet of the buffer tank 12 for detecting whether the gas output from the buffer tank 12 is in a qualified state. One end of the control device is connected to the air outlet of the storage tank 11 through a pipeline, and the other end is connected to the detection device for controlling the opening and closing of the air outlet of the storage tank 11. When the detection device detects that the gas is in an unqualified state, the air outlet of the storage tank 11 is opened, and the recycling unit 2 recycles the gas. Otherwise, the air outlet is closed.

[0031] The storage tank 11 includes a first qualified tank 111, a second qualified tank 112 and a non - qualified tank 113. At the inlet of the first qualified tank 111, it is connected to the inlet pipeline and the first outlet pipeline through a connecting pipeline. The inlet pipeline is above, and the first outlet pipeline is below. The right side of the first outlet pipeline is the second outlet pipeline. One end of the inlet pipeline is connected to the membrane press 13, and the other end is connected to the first qualified tank 111 through a connecting pipeline. One end of the first outlet pipeline is connected to the inlet pipeline, and the other end is connected to the second outlet pipeline. One end of the second outlet pipeline is connected to the outlet of the first qualified tank 111, and the other end is connected to the recycling membrane press 21 through a pipeline. The second qualified tank 112 and the non - qualified tank 113 are similar to the first qualified tank 111, and are provided with an inlet pipeline, a first outlet pipeline and a second outlet pipeline.

[0032] When the detection device detects that the gas is in a non - qualified state, the control device controls the opening of the inlet of the non - qualified tank 113, closes the inlets of the first qualified tank 111 and the second qualified tank 112. The non - qualified gas enters the non - qualified tank 113, and the outlet of the non - qualified tank 113 is opened. The non - qualified gas enters the recycling unit 2 from the outlet of the non - qualified tank 113. When the detection device detects that the gas is in a qualified state, the control device controls the opening of the inlets of the first qualified tank 111 and the second qualified tank 112, closes the inlet and outlet of the non - qualified tank 113. The qualified gas enters the first qualified tank 111 and the second qualified tank 112. If non - qualified gas is stored in the first qualified tank 111 or the second qualified tank 112, the outlet of the first qualified tank 111 or the second qualified tank 112 is opened, and it enters the recycling unit 2 through the second outlet pipeline. The first qualified tank 111, the second qualified tank 112 and the non - qualified tank 113 can all input values to the recycling unit 2 to realize the secondary treatment of the gas.

[0033] Embodiment 2

[0034] The gas extracted by the Xai refining device 3 enters the buffer tank 12 through the first air inlet. The detection device measures the gas state at this time and sends its state information to the control device. The control device determines whether the gas is in a qualified state at this time. When the gas is in a qualified state, the control device controls the valves and air inlets of the first qualified tank 111 and the second qualified tank 112 to open, and fills the qualified gas into the first qualified tank 111 and the second qualified tank 112. At this time, the air inlets and outlets of the unqualified tank 113 are in a closed state. When it is detected that the gas is in an unqualified state, the control device controls the air inlets of the first qualified tank 111 and the second qualified tank 112 to close, and controls the air outlet and air inlet of the unqualified tank 113 to open. The unqualified gas is subjected to secondary treatment through the loop equipment, and the treated gas re-enters the buffer tank 12 through the second air inlet and is detected. If it is qualified, it enters the first qualified tank 111 and the second qualified tank 112. If it is unqualified, it enters the unqualified tank 113 again. It is possible to reduce the influence of the unqualified gas on the original qualified gas in the storage tank 11. Only the gas in the unqualified tank 113 is input to the recycling unit 2 to achieve the secondary treatment of the gas.

[0035] When the detected gas is in an unqualified state, the control device can also, while controlling the air inlets of the first qualified tank 111 and the second qualified tank 112 to close, only control the air inlet of the unqualified tank 113 to open, and its air outlet to close. When the unqualified tank 113 is about to be full, then control the air outlet of the unqualified tank 113 to open, which can effectively reduce the storage of unqualified gas in the buffer tank 12.

[0036] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention 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 should not be construed as a limitation of the present invention.

[0037] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present utility model are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

Claims

1. A refined storage and recycling system, characterized by: It comprises a gas storage device (1), a recycling unit (2) and a Xai refining device (3); The gas outlet of the Xai refining device (3) is connected to the gas inlet of the gas storage device (1) through a pipeline, the gas outlet of the gas storage device (1) is connected to one end of the refining unit (2) through a pipeline, and the other end of the refining unit (2) is connected to the gas inlet of the gas storage device (1) through a pipeline. The Xai refining device (3) passes gas into the gas storage device (1) for storage, and the refining unit (2) refining the gas in the gas storage device (1), and the refining gas is re-input into the gas storage device (1).

2. The storage and refining system of refined Xai according to claim 1, characterized in that: It also comprises a gas filling column (4), the gas filling column (4) having an air inlet connected to a gas outlet of the gas storage device (1) via a pipeline, and the gas filling column (4) having an air outlet used for connecting to a transport vehicle.

3. The storage and refining system of refined Xai according to claim 1 or 2, characterized in that: The gas storage device (1) comprises a storage tank (11), a buffer tank (12) and a membrane press (13); The buffer tank (12) is provided with a first air inlet, a second air inlet and a buffer air outlet; the air outlet of the Xai refining device (3) is connected to the first air inlet via a pipeline; the buffer air outlet is connected to one end of the membrane press (13); the other end of the membrane press (13) is connected to the air inlet of the storage tank (11) via a pipeline; and the air outlet of the recycling unit (2) is connected to the second air inlet via a pipeline.

4. The storage and refining system of refined Xai according to claim 3 is characterized by: The storage tank (11) comprises a first qualified tank (111), a second qualified tank (112) and an unqualified tank (113); the first qualified tank (111), the second qualified tank (112) and the unqualified tank (113) are arranged side by side; the air inlets of the first qualified tank (111), the second qualified tank (112) and the unqualified tank (113) are connected to the other end of the membrane press (13) via a pipeline; and the air outlets are connected to the air inlet of the gas filling column (4) or the recycling unit (2) via a pipeline.

5. The storage and refining system of refined Xai according to claim 1, characterized in that: The recycling unit (2) comprises a recovery membrane press (21), a dehydrogenation and dehydration device (22) and a low-temperature adsorption device (23); the air inlet of the recovery membrane press (21) is connected to the air outlet of the gas storage device (1) via a pipeline, the air inlet of the dehydrogenation and dehydration device (22) is connected to the air outlet of the recovery membrane press (21) via a pipeline, the air inlet of the low-temperature adsorption device (23) is connected to the air outlet of the dehydrogenation and dehydration device (22) via a pipeline, and the air outlet of the low-temperature adsorption device (23) is connected to the air inlet of the gas storage device (1) via a pipeline.

6. The storage and refining system of refined Xai according to claim 4, characterized in that: It also comprises a detection device, which is arranged at the buffer gas outlet of the buffer tank (12) and is used to detect whether the gas output by the buffer tank (12) is in a qualified state.

7. The storage and refining system of refined Xai according to claim 6, characterized in that: It also comprises a control device, one end of which is connected to the gas outlet of the storage tank (11) via a pipeline, and the other end of which is connected to the detection device.

8. The storage and refining system of refined Xai according to claim 3, characterized in that: The state of the gas outlet of the storage tank (11) is controlled by a pipeline or a valve provided at the gas outlet of the storage tank (11).

9. The storage and refining system of refined Xai according to claim 7, characterized in that: The control device is used to control the air inlet states of the first qualified tank (111) and the second qualified tank (112).

10. The storage and refining system of refined Xai according to claim 7, characterized in that: The control device is used to control the air inlet states of the first qualified tank (111), the second qualified tank (112) and the unqualified tank (113).

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