Pressure swing adsorption device and control loop

Abstract

The utility model discloses a pressure swing adsorption device and a control loop. The pressure swing adsorption device comprises a shell; a volume cavity is formed in the inner side of the shell, and at least one adsorption device is arranged on the inner side of the volume cavity; an air storage tank is further arranged on the inner side of the shell, and the air storage tank is connected with the output end of the adsorption device; the device can be used for measuring the filler layer in the device and measuring the purification effect of the filler on specific gas, the gas flow is 0-100 ML / min, the device can be used for measuring various gases, an adsorption device capable of being rapidly detached is designed in the device, the adsorption filler is conveniently and rapidly replaced, and compared with a PSA device in the prior art, the device in the scheme is small in size, convenient to operate and low in cost. And the adsorption time can be changed through the operation panel, so that the device is more suitable for adsorption experiment scenes of various fillers on specific gases.

Description

TECHNICAL FIELD

[0001] The utility model relates to adsorption test technical field especially, relates to a pressure swing adsorption device and control loop. BACKGROUND

[0002] The PSA (Pressure Swing Adsorption) device of prior art is generally big, and it is inconvenient to switch the use of each scene and is used for determining the purification effect of packing to specific gas, for example, in laboratory environment, the device can be moved quickly and be applied to different test areas or be used with other equipment according to different research projects or experimental requirements, but the carrying and repositioning process of large PSA device is relatively cumbersome, and a lot of manpower and time are consumed.On the other hand, for some scenes needing rapid detection on site or temporary construction of gas purification system, such as emergency detection and purification analysis of specific gas leakage in industrial production site, large PSA device is difficult to quickly reach and put into use.Also, the PSA filling material part is inconvenient to disassemble, and it is not conducive to the rapid replacement of packing. SUMMARY

[0003] The utility model discloses a pressure swing adsorption device and control loop, which can solve the problems of the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pressure swing adsorption device, comprising:

[0005] A shell;

[0006] The inside of the shell forms a volume cavity, and at least one adsorption device is arranged on the inside of the volume cavity.

[0007] The inside of the shell is also provided with a gas storage tank, and the gas storage tank is connected with the output end of the adsorption device.

[0008] As a further description of the above technical scheme: the two side end faces of the shell are provided with a first control panel and a second control panel, and the first control panel is arranged opposite to the second control panel.

[0009] As a further description of the above technical scheme: the first control panel comprises a display screen, a flow switch, an inlet pressure gauge, an outlet pressure gauge, an inlet regulating valve and an outlet regulating valve.

[0010] As a further description of the above technical scheme: the second control panel comprises a power switch, an inlet interface, an outlet interface, a power socket and an electrical maintenance door.

[0011] As a further description of the above technical solution: the shell is provided with a hardware maintenance door and an adsorption device replacement door on the two sides adjacent to the first control panel and the second control panel.

[0012] As a further description of the above technical solution: the adsorption device is connected with the shell through threads, the adsorption device comprises a pipe body, two ends of the pipe body are connected with the outside world, and one side is provided with a closed end.

[0013] As a further description of the above technical solution: the side of the pipe body provided with the closed end is located below, a first filter screen is arranged on the inner side of the pipe body, a filler layer is placed on the first filter screen, and a second filter screen is arranged on the filler layer.

[0014] As a further description of the above technical solution: a sealing ring is arranged outside the side of the pipe body close to the second filter screen and connected with the shell.

[0015] Further comprising a control circuit of a pressure swing adsorption device, the control circuit is suitable for the pressure swing adsorption device of any one of the above technical solutions, and comprises:

[0016] a gas inlet interface;

[0017] the gas inlet interface is connected with a gas inlet regulating valve, one side of the gas inlet regulating valve is connected with a gas inlet pressure gauge;

[0018] an output end of the gas inlet regulating valve is connected with a flow meter and a first safety valve;

[0019] an output end of the first safety valve is connected with an electromagnetic reversing valve, one side of an output end of the electromagnetic reversing valve is connected with a silencer, and the other side is connected with an adsorption device;

[0020] an output end of the adsorption device is provided with a check valve, and an output end of the check valve is connected with a second safety valve;

[0021] an output end of the second safety valve is connected with a gas storage tank;

[0022] an output end of the gas storage tank is connected with a gas outlet regulating valve, one side of the gas outlet regulating valve is connected in parallel with a gas outlet pressure gauge, and an output end of the gas outlet regulating valve is connected with a gas outlet interface.

[0023] As a further description of the above technical solution: the adsorption device and the check valve are both provided with two and connected in parallel at the output end of the electromagnetic reversing valve.

[0024] The above technical solution has the following advantages or beneficial effects:

[0025] The filling layer in the device is measured, the purification effect of the filling layer on a specific gas is measured, the gas flow is 0-100ML / min, the device can be used for measurement of various gases, the adsorption device is designed to be quickly detachable in the device, the adsorption filling material is convenient and fast to replace, compared with the PSA device of the prior art, the device of the scheme is small in size, and the adsorption time can be changed through the operation panel, and the device is more suitable for various filling materials for specific gas adsorption experiment scenes. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The three-dimensional structure of the pressure swing adsorption device Figure 1 ;

[0027] Figure 2 The three-dimensional structure of the pressure swing adsorption device Figure 2 ;

[0028] Figure 3 The internal structure of the pressure swing adsorption device is shown in the schematic view of the internal structure of the pressure swing adsorption device.

[0029] Figure 4 The internal structure of the pressure swing adsorption device is shown in the schematic view of the internal structure of the pressure swing adsorption device.

[0030] Figure 5 The sectional view of the adsorption device in the utility model is shown in the sectional view of the adsorption device.

[0031] Figure 6 The structure of the control loop is shown in the schematic view of the structure of the control loop.

[0032] Legend:

[0033] 1, shell; 2, adsorption device; 201, pipe body; 202, first filter screen; 203, filling layer; 204, second filter screen; 205, sealing ring; 3, gas storage tank; 4, first control panel; 401, display screen; 402, flow switch; 403, inlet pressure gauge; 404, outlet pressure gauge; 405, inlet regulating valve; 406, outlet regulating valve; 5, second control panel; 501, power switch; 502, inlet interface; 503, outlet interface; 504, power socket; 505, electrical maintenance door; 6, hardware maintenance door; 7, adsorption device replacement door; 8, flowmeter; 9, first safety valve; 10, electromagnetic reversing valve; 11, silencer; 12, check valve; 13, second safety valve. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0035] With reference to Figures 1-5 The present application provides an embodiment: a pressure swing adsorption device, comprising: a shell 1; a volume cavity is formed on the inner side of the shell 1, and at least one adsorption device 2 is arranged on the inner side of the volume cavity; the inner side of the shell 1 is further provided with a gas storage tank 3, and the gas storage tank 3 is connected with the output end of the adsorption device 2.

[0036] In the embodiment, the packing layer in the device is measured, the purification effect of the packing on a specific gas is measured, the gas flow is 0-100ML / min, and the device can be used for measurement of various gases. The adsorption device is designed to be quickly detachable, the adsorption packing can be conveniently and quickly replaced, compared with the PSA device in the prior art, the device has small size, and the adsorption time can be changed through the operation panel, and is more suitable for the adsorption experiment scene of various packings on a specific gas.

[0037] The adsorption device 2 is provided with two adsorption devices, which can be used one by one or switched through the electromagnetic reversing valve 10. The adsorption effect of the packing when the same gas passes through different packings is detected, or the adsorption effect of the same packing on different gases is detected. The electromagnetic reversing valve 10 is a three-position five-way electromagnetic reversing valve.

[0038] The two side end faces of the shell 1 are provided with a first control panel 4 and a second control panel 5, and the first control panel 4 and the second control panel 5 are arranged opposite to each other. The first control panel 4 comprises a display screen 401, a flow switch 402, an inlet pressure gauge 403, an outlet pressure gauge 404, an inlet adjusting valve 405 and an outlet adjusting valve 406. The second control panel 5 comprises a power switch 501, an inlet interface 502, an outlet interface 503, a power socket 504 and an electrical maintenance door 505.

[0039] In the embodiment, the first control panel 4 is provided with a display screen 401, which is a PCL or embedded control panel, for setting the adsorption time of the gas and monitoring the running parameters of the device, a flow switch 402 for controlling the gas into the pressure swing adsorption device, opening the flow switch 402 and monitoring the flow of the entering gas through the flow meter 8 at the flow switch 402, monitoring the pressure of the gas entering the pressure swing adsorption device and the pressure of the output gas through the inlet pressure gauge 403 and the outlet pressure gauge 404, adjusting the pressure of the gas through the inlet regulating valve 405 and the outlet regulating valve 406, the inlet interface 502 and the outlet interface 503 are 1 / 8mm interfaces, and the power socket 504 is a 10A current.

[0040] The power cord is inserted into the 10A power socket 504, and the other end is inserted into the power supply socket. The inlet interface 502 and the outlet interface 503 use a sleeve interface and a fastening seal.

[0041] Press the power switch 501, and the device starts running. After the power supply is connected, the instrument power switch ("POWER") key is on the rear panel, "I" for starting, and "O" for shutting down. After starting, adjust the inlet pressure regulating valve to set the required pressure value; adjust the flow meter knob to set the required flow ML value; and set the adsorption time.

[0042] The housing 1 is located adjacent to the first control panel 4 and the second control panel 5, and is provided with a hardware maintenance door 6 and an adsorption device replacement door 7.

[0043] In the embodiment, the hardware maintenance door 6 and the adsorption device replacement door 7 are connected with the housing 1 by screws, the hardware maintenance door 6 is convenient for maintenance and replacement of the equipment, and the adsorption device replacement door 7 is convenient for the staff to replace the adsorption device 2.

[0044] The adsorption device 2 is connected with the housing 1 by threads, and the adsorption device 2 comprises a pipe body 201, both ends of the pipe body 201 are communicated with the outside, and one side is provided with a closed end. The side of the pipe body 201 provided with the closed end is located below, a first filter screen 202 is arranged on the inner side of the pipe body 201, a filler layer 203 is placed on the first filter screen 202, and a second filter screen 204 is arranged on the filler layer 203. A sealing ring 205 is arranged outside the side of the pipe body 201 close to the second filter screen 204, and is connected with the housing 1.

[0045] In the embodiment, one side of the pipe body 201 is provided with a closed end, the other side is provided with threads and a step, the sealing ring 205 is arranged at the step on the outer side of the pipe body 201, and is threadedly matched with the shell 1 to be sealed, the lower part of the pipe body 201 is the first filter screen 202 matched with the closed end, the filler layer 203 is arranged on the first filter screen 202, the second filter screen 204 is arranged on the filler layer 203, the gas enters from the closed end at the lower part of the pipe body 201, is output from the adsorption device 2 after passing through the first filter screen 202, the filler layer 203 and the second filter screen 204, and the adsorption effect of the filler layer 203 is detected.

[0046] Further, to ensure the sealing effect, a sealing clamp can be arranged at the connection between the shell 1 and the pipe body 201 to further seal.

[0047] When the adsorption device 2 is replaced, the adsorption device replacement door 7 is first removed, the clamp nut is loosened, the pipe body 201 is rotated and removed, the filler layer 203 on the inner side is replaced, or a new adsorption device 2 is directly replaced, and then the above steps are performed again to reinstall.

[0048] The filler layer 203 should be filled in a clean and non-polluted working area, and a clean paper towel is placed on the table in advance, so that the filler can be used if it is accidentally dropped during filling.

[0049] During filling, due to the small filling volume, other sharp objects cannot be used to press the filler tightly, and the filler should be naturally filled by vibration. The filler layer can select corresponding materials and filler sizes according to the detection requirements of the to-be-detected filler.

[0050] Reference Figure 6 Further, an embodiment of a control circuit of a pressure swing adsorption device is provided, and the control circuit is suitable for the pressure swing adsorption device of any one of the above technical solutions, and comprises:

[0051] The gas inlet interface 502;

[0052] The gas inlet interface 502 is connected with the gas inlet regulating valve 405, one side of the gas inlet regulating valve 405 is connected with the gas inlet pressure gauge 403;

[0053] The output end of the gas inlet regulating valve 405 is connected with the flow meter 8 and the first safety valve 9;

[0054] The output end of the first safety valve 9 is connected with the electromagnetic reversing valve 10, one side of the output end of the electromagnetic reversing valve 10 is connected with the muffler 11, and the other side is connected with the adsorption device 2;

[0055] The output end of the adsorption device 2 is provided with the one-way valve 12, and the output end of the one-way valve 12 is connected with the second safety valve 13;

[0056] The output end of the second safety valve 13 is connected with the gas storage tank 3;

[0057] The output end of the gas storage tank 3 is connected with an outlet adjusting valve 406, one side of the outlet adjusting valve 406 is connected with an outlet pressure gauge 404 in parallel, and the output end of the outlet adjusting valve 406 is connected with an outlet interface 503.

[0058] Specifically, the adsorption device 2 and the one-way valve 12 are both provided with two and are connected with the output end of the electromagnetic reversing valve 10 in parallel.

[0059] It can be understood that the control circuit provided by the embodiment of the present application corresponds to the above-mentioned pressure swing adsorption device, and the explanation, examples, beneficial effects and the like of the related content can refer to the corresponding content in the pressure swing adsorption device, which will not be repeated here.

[0060] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A pressure swing adsorption apparatus, characterized by, The utility model relates to a pressure swing adsorption device, including: A shell (1); The inside of the shell (1) forms a volume cavity, and at least one adsorption device (2) is arranged on the inside of the volume cavity; The inside of the shell (1) is further provided with a gas storage tank (3), and the gas storage tank (3) is connected with the output end of the adsorption device (2).

2. The pressure swing adsorption apparatus of claim 1, wherein: The two side end faces of the shell (1) are provided with a first control panel (4) and a second control panel (5), and the first control panel (4) is arranged opposite to the second control panel (5).

3. The pressure swing adsorption apparatus of claim 2, wherein: The first control panel (4) includes a display screen (401), a flow switch (402), an inlet pressure gauge (403), an outlet pressure gauge (404), an inlet regulating valve (405) and an outlet regulating valve (406).

4. The pressure swing adsorption apparatus of claim 2, wherein: The second control panel (5) includes a power switch (501), an inlet interface (502), an outlet interface (503), a power socket (504) and an electrical maintenance door (505).

5. The pressure swing adsorption apparatus of claim 2, wherein: The shell (1) is provided with a hardware maintenance door (6) and an adsorption device replacement door (7) on the two sides adjacent to the first control panel (4) and the second control panel (5).

6. The pressure swing adsorption apparatus of claim 1, wherein: The adsorption device (2) is connected with the shell (1) through threads, and the adsorption device (2) includes a pipe body (201), the two ends of the pipe body (201) are communicated with the outside, and one side is provided with a closed end.

7. The pressure swing adsorption apparatus of claim 6, wherein: The side of the pipe body (201) provided with the closed end is located below, a first filter screen (202) is arranged on the inside of the pipe body (201), a filler layer (203) is placed on the first filter screen (202), and a second filter screen (204) is arranged on the filler layer (203).

8. The pressure swing adsorption apparatus of claim 6, wherein: A sealing ring (205) is arranged outside the side of the pipe body (201) close to the second filter screen (204) and connected with the shell (1).

9. A control circuit for a pressure swing adsorption apparatus, characterized by The control circuit is suitable for the pressure swing adsorption device in any one of the preceding claims 1-8, including: An inlet interface (502); The inlet interface (502) is connected with the inlet regulating valve (405), one side of the inlet regulating valve (405) is connected with the inlet pressure gauge (403); The output end of the inlet regulating valve (405) is connected with a flowmeter (8) and a first safety valve (9); The output end of the first safety valve (9) is connected with an electromagnetic reversing valve (10), one side of the output end of the electromagnetic reversing valve (10) is connected with a silencer (11), and the other side is connected with the adsorption device (2); The output end of the adsorption device (2) is provided with a check valve (12), and the output end of the check valve (12) is connected with a second safety valve (13); The output end of the second safety valve (13) is connected with the gas storage tank (3); The output end of the gas storage tank (3) is connected with the outlet regulating valve (406), one side of the outlet regulating valve (406) is connected in parallel with the outlet pressure gauge (404), and the output end of the outlet regulating valve (406) is connected with the outlet interface (503).

10. The control loop of claim 9, wherein: The adsorption device (2) and the check valve (12) are both provided with two and connected in parallel at the output end of the electromagnetic reversing valve (10).

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