Device capable of discharging produced gas at any time based on gas separation

Abstract

The utility model relates to the technical field of industrial gas preparation, in particular to a gas separation-based output gas outlet device at any time, which comprises a gas inlet header pipe communicated with output gas, a process buffer tank communicated with the tail end of the gas inlet header pipe, and a gas outlet header pipe communicated with the process buffer tank, a flowmeter, a gas outlet main valve and a gas outlet mechanism are sequentially communicated with the gas outlet main pipe; a sampling mechanism and an air inlet emptying mechanism are arranged on the air inlet header pipe in parallel in a communicating manner; a surpassing pipe is arranged between the sampling mechanism and the air outlet header pipe in a communicating manner; and the controller is used for realizing automatic control. According to the device capable of discharging the produced gas at any time based on gas separation, the state of the valve is automatically adjusted according to the pressure change of the used gas, and the purposes that the gas is not stopped after shutdown and the gas is used at any time are achieved; qualified gas can be obtained immediately after the device is started, the purposes of saving energy and reducing consumption are achieved, and sampling is carried out from the gas output end and the gas using end respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial gas preparation, and in particular to a device capable of discharging output gas at any time based on gas separation. Background Art

[0002] Air separation is the process of producing the required industrial gases through air separation equipment. The principle of air separation is to use the physical property differences of different gas components in the air, such as boiling points and freezing points, to separate oxygen, nitrogen and argon in the air through condensation, compression and membrane separation technology, thereby obtaining high-purity gas products.

[0003] At present, the output gas of air separation is stored in a buffer tank. However, the common connection method between air separation equipment and buffer tank still has the following shortcomings:

[0004] Although air separation equipment can continuously supply qualified gas, customized equipment is often ordered according to the maximum standard. This means that when the amount of gas used is less than the gas supply of the equipment or the gas is not needed temporarily, the equipment cannot be shut down and wait due to the current process limitations, and can only be wasted. Because if the equipment is shut down and restarted, the purity of the gas output from the equipment will be greatly reduced, thus failing to meet the process requirements, and it will take a long time to wait until the equipment can produce qualified gas before it can be used. This will undoubtedly increase energy consumption and prevent the related processes from continuing. Therefore, after the user starts the equipment, he dare not shut down and wait, and can only start the equipment and waste it, causing a huge waste of energy. Utility Model Content

[0005] In order to solve the technical problems existing in the background technology, the utility model provides a gas separation-based output gas outlet device that can be used at any time. The state of the valve is automatically adjusted according to the change of the gas pressure, so that the gas can be shut down without stopping the gas, and the gas can be used as soon as it is started; the device can immediately output qualified gas when the device is started, thereby achieving the purpose of energy saving and consumption reduction, and sampling is performed respectively from the gas output end and the gas use end.

[0006] The technical solution adopted by the utility model is:

[0007] A device based on gas separation that can discharge output gas at any time, comprising: an air intake main pipe connected to the output gas, the end of the air intake main pipe is connected to a process buffer tank, the process buffer tank is connected to a gas outlet main pipe, the gas outlet main pipe is sequentially connected to a flow meter, a gas outlet main valve, and a gas outlet mechanism; a sampling mechanism and an air intake venting mechanism are connected in parallel on the air intake main pipe, and an override pipe is connected between the sampling mechanism and the gas outlet main pipe.

[0008] Also included: a controller for realizing automatic control.

[0009] Furthermore, an intake bypass pipe is arranged in parallel on the intake manifold, a bypass valve is arranged on the intake bypass pipe, and the bypass valve is electrically connected to the controller.

[0010] Furthermore, an intake check valve is provided on the intake manifold which is parallel to the intake bypass pipe.

[0011] Furthermore, the air outlet mechanism comprises:

[0012] Two sets of pipelines are arranged in parallel, where:

[0013] The first pipeline is connected in sequence with an outlet branch valve and an outlet check valve until it reaches the gas-using end;

[0014] The second pipeline is sequentially connected with an air outlet vent branch valve, an air outlet vent hand valve, and an air outlet muffler.

[0015] Furthermore, the air outlet branch valve and the air outlet vent branch valve are electrically connected to the controller.

[0016] Furthermore, the sampling mechanism comprises:

[0017] A sampling valve, a buffer bottle, and a sampling tube are sequentially connected, the sampling valve is connected to the air intake main pipe, and a sampling regulating valve is arranged at the end of the sampling tube and is connected to the detection equipment.

[0018] Furthermore, the sampling valve is electrically connected to the controller.

[0019] Furthermore, the air intake and venting mechanism comprises:

[0020] An intake vent branch valve, an intake vent check valve, an intake vent hand valve, and an intake vent muffler are sequentially connected, and the intake vent branch valve is connected to an intake main pipe.

[0021] Furthermore, the air intake vent branch valve is electrically connected to the controller.

[0022] Furthermore, the overrunning pipe is respectively connected to the gas outlet main pipe and the gas inlet end of the buffer bottle;

[0023] The overrunning pipe is connected with an overrunning valve electrically connected to the controller.

[0024] The advantages of the device for discharging the output gas at any time based on gas separation in the utility model are:

[0025] 1. Sample the output gas through the sampling mechanism; sample the stored gas through the transcending pipe;

[0026] 2. The main air inlet pipe of the qualified gas buffer tank is controlled by two control valves. When the gas comes in, it passes through the sampling device to the analysis device to analyze whether the gas is qualified. If it is unqualified, the controller controls the exhaust control valve to open and the air inlet control valve to close to exhaust the unqualified gas. Avoid secondary contamination of the qualified gas buffer tank and greatly reduce the replacement time.

[0027] 3. When the analytical device detects that the gas is qualified, the controller controls the exhaust control valve to close and the air inlet control valve to open to supply gas to the qualified gas buffer tank. Because there is no need to replace the container, the required purity can be achieved in a short time. The buffer tank in the middle can be used as a small buffer by the user, so that the purpose of stopping, starting and using at any time can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation of the present utility model, the drawings required in the specific implementation are briefly introduced below. The drawings in the following description are implementations of the present utility model.

[0029] Figure 1 This is a schematic diagram of the overall process of a device for discharging output gas at any time based on gas separation provided by an example of the utility model.

[0030] In the figure:

[0031] 10. Intake manifold, 11. Intake bypass pipe, 12. Process buffer tank, 13. Intake check valve, 14. Bypass valve, 15. Outlet manifold, 16. Flow meter, 17. Outlet main valve,

[0032] 2. Exhaust mechanism, 21. Exhaust branch valve, 22. Exhaust check valve, 23. Exhaust vent branch valve, 24. Exhaust vent hand valve, 25. Exhaust silencer,

[0033] 3. Sampling mechanism, 31. Sampling valve, 32. Buffer bottle, 33. Sampling tube,

[0034] 4. Intake and vent mechanism, 41. Intake and vent branch valve, 42. Intake and vent check valve, 43. Intake and vent hand valve, 44. Intake and vent muffler,

[0035] 50. Overrun pipe, 51. Overrun valve,

[0036] 6. Controller. DETAILED DESCRIPTION

[0037] In order to more clearly and explicitly illustrate the specific implementation purpose and implementation method of the utility model, the technical solution of the utility model will be fully described below. The described embodiment is a part of the embodiment of the utility model, not all the embodiments. Without making creative work, all other embodiments based on the embodiment described in the utility model belong to the protection scope of the utility model.

[0038] The utility model discloses a device for producing gas at any time based on gas separation, such as Figure 1 As shown, it includes: a controller 6 for realizing automatic control.

[0039] Also includes:

[0040] An intake manifold 10 is connected to the output gas, and an intake bypass pipe 11 is arranged in parallel on the intake manifold 10. A bypass valve 14 is arranged on the intake bypass pipe 11, and the bypass valve 14 is electrically connected to the controller 6. An intake check valve 13 is arranged on the intake manifold 10 in parallel with the intake bypass pipe 11. A process buffer tank 12 is arranged at the end of the intake manifold 10, and an outlet manifold 15 is arranged on the process buffer tank 12. A flow meter 16, an outlet main valve 17, and an outlet mechanism 2 are arranged on the outlet manifold 15 in sequence.

[0041] The gas outlet mechanism 2 comprises: two sets of pipelines arranged in parallel, wherein:

[0042] The first pipeline is connected with an outlet branch valve 21 and an outlet check valve 22 in sequence until the gas use end; the second pipeline is connected with an outlet vent branch valve 23, an outlet vent hand valve 24, and an outlet muffler 25 in sequence. The outlet branch valve 21 and the outlet vent branch valve 23 are electrically connected to the controller 6.

[0043] The air intake main pipe 10 is provided with a sampling mechanism 3 and an air intake venting mechanism 4 in parallel and in communication with each other.

[0044] The sampling mechanism 3 comprises:

[0045] The sampling valve 31, the buffer bottle 32 and the sampling tube 33 are connected in sequence. The sampling valve 31 is connected to the intake manifold 10. The end of the sampling tube 33 is provided with a sampling regulating valve and is connected to the detection equipment. The sampling valve 31 is electrically connected to the controller 6.

[0046] The air intake and venting mechanism 4 comprises:

[0047] The intake vent branch valve 41, the intake vent check valve 42, the intake vent hand valve 43, and the intake vent muffler 44 are connected in sequence, and the intake vent branch valve 41 is connected to the intake manifold 10. The intake vent branch valve 41 is electrically connected to the controller 6.

[0048] An overrunning pipe 50 is provided between the sampling mechanism 3 and the gas outlet main pipe 15, and the overrunning pipe 50 is respectively connected to the gas outlet main pipe 15 and the gas inlet end of the buffer bottle 32. An overrunning valve 51 electrically connected to the controller 6 is provided on the overrunning pipe 50.

[0049] Based on the above, the embodiment of the utility model of a device for discharging output gas at any time based on gas separation is inspired. Through the above description, relevant personnel can make various changes and modifications without departing from the scope of the technical idea of ​​this utility model.

Claims

1. A device for discharging output gas at any time based on gas separation, characterized in that: include: An air intake main pipe (10) connected to the output gas, the end of the air intake main pipe (10) being connected to a process buffer tank (12), the process buffer tank (12) being connected to an air outlet main pipe (15), the air outlet main pipe (15) being connected to a flow meter (16), an air outlet main valve (17), and an air outlet mechanism (2) in sequence; A sampling mechanism (3) and an air intake venting mechanism (4) are arranged in parallel and in communication with each other on the air intake main pipe (10); a bypass pipe (50) is arranged in communication between the sampling mechanism (3) and the air outlet main pipe (15); Also includes: A controller (6) is used to realize automatic control.

2. The device for producing gas at any time based on gas separation according to claim 1, characterized in that: An intake bypass pipe (11) is arranged in parallel and in communication with the intake manifold (10), a bypass valve (14) is arranged in communication with the intake bypass pipe (11), and the bypass valve (14) is electrically connected to the controller (6).

3. The device for producing gas at any time based on gas separation according to claim 2, characterized in that: An intake check valve (13) is provided on the intake manifold (10) which is arranged in parallel with the intake bypass pipe (11).

4. The device for producing gas at any time based on gas separation according to claim 1, characterized in that: The air outlet mechanism (2) comprises: Two sets of pipelines are arranged in parallel, where: The first pipeline is connected in sequence with an outlet branch valve (21) and an outlet check valve (22) until the air-using end; The second pipeline is connected in sequence with an air outlet vent branch valve (23), an air outlet vent hand valve (24), and an air outlet muffler (25).

5. The device for producing gas at any time based on gas separation according to claim 4, characterized in that: The gas outlet branch valve (21) and the gas outlet vent branch valve (23) are electrically connected to the controller (6).

6. The device for producing gas at any time based on gas separation according to claim 1, characterized in that: The sampling mechanism (3) comprises: A sampling valve (31), a buffer bottle (32), and a sampling tube (33) are sequentially connected, wherein the sampling valve (31) is connected to an air intake manifold (10), and a sampling regulating valve is provided at the end of the sampling tube (33), and is connected to a detection device.

7. The device for producing gas at any time based on gas separation according to claim 6, characterized in that: The sampling valve (31) is electrically connected to the controller (6).

8. The device for producing gas at any time based on gas separation according to claim 1, characterized in that: The air intake and venting mechanism (4) comprises: An intake vent branch valve (41), an intake vent check valve (42), an intake vent hand valve (43), and an intake vent muffler (44) are sequentially connected, and the intake vent branch valve (41) is connected to an intake main pipe (10).

9. The device for producing gas at any time based on gas separation according to claim 8, characterized in that: The air intake vent branch valve (41) is electrically connected to the controller (6).

10. The device for producing gas at any time based on gas separation according to claim 6, characterized in that: The overrunning pipe (50) is respectively connected to the gas outlet main pipe (15) and the gas inlet end of the buffer bottle (32); The overrunning pipe (50) is provided with an overrunning valve (51) electrically connected to the controller (6).

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