Continuous gas separation membrane detection device and working method thereof

Abstract

The present application discloses a continuous gas separation membrane detection device and a working method thereof, wherein the continuous gas separation membrane detection device comprises an installation mechanism, a detection mechanism, a device body and an air induction assembly, wherein the detection mechanism comprises a gas phase analyzer, the device body comprises a device housing, an air guide box and a flow tube group, the device housing has a processing space, the air guide box has an air guide duct and an air outlet, the flow tube group comprises a drainage tube and a return tube, the air induction assembly comprises a first air induction member and a second air induction member, the second air induction member is located at one end of the air guide duct away from the air outlet, the second air induction member can blow the residual gas enriched on the surface of the gas separation membrane toward the air outlet to guide it to above the first air induction member, the first air induction member can mix the residual gas above it with the permeate gas guided by it and flowing upward, so that the gas composition in the processing space remains stable and the gas composition ratio quickly recovers to stability.

Description

Technical Field

[0001] The present invention relates to the technical field of gas separation membrane detection, in particular to continuous gas separation membrane detection equipment and a working method thereof. Background Art

[0002] Gas separation membrane is an important separation technology, which is widely used in petrochemical, coal chemical, environmental protection and other fields. Gas separation membrane achieves gas separation based on the difference in the speed of different gases passing through the gas separation membrane, that is, the gas components with fast permeation speed are enriched on the permeation side of the gas separation membrane, and the gas components with slow permeation speed remain on the feed side of the gas separation membrane. Gas separation membranes will be affected by many factors during long-term use, including physical factors, chemical factors and biological factors. These factors will affect the separation performance and mechanical properties of gas separation membranes, resulting in decreased permeability and selectivity, thereby affecting its separation effect. Therefore, it is necessary to conduct separation performance testing regularly to ensure the quality safety and stable performance of gas separation membranes.

[0003] At present, when testing the separation performance of gas separation membranes, in order to improve the accuracy of the test results, the gas separation membranes are usually placed in a temperature and humidity adjustable box to meet the needs of testing in different environments. As the test operation proceeds, the amount of individual types of gas in the box gradually decreases, causing the gas composition and gas composition ratio in the box to change dramatically. The gas separation membrane shows a premature weakening of the separation effect due to gas factors, which has an adverse effect on the accuracy of the gas separation membrane separation performance test.

[0004] In addition, some equipment adopts the method of replacing the gas in the box to avoid the situation where some components are reduced or even missing and affect the separation performance detection, but this increases the complexity of equipment design and increases operating costs. Summary of the invention

[0005] In order to solve the above technical problems and achieve at least one advantage of the present invention, the present invention provides a continuous gas separation membrane detection device, the continuous gas separation membrane detection device comprising:

[0006] An installation mechanism, the installation mechanism is used to install the gas separation membrane;

[0007] A detection mechanism, the detection mechanism comprising a gas analyzer;

[0008] The device body has an air inlet, and the device body comprises:

[0009] an equipment housing, the equipment housing having a processing space, the processing space being in communication with the air inlet;

[0010] An air guide box, the air guide box is installed in the processing space, the air guide box has an air guide channel and an air outlet connected to the air guide channel, the mounting mechanism is installed in the air guide channel, and the gas separation membrane arranged in the mounting mechanism can separate the gas in the air guide channel to separate the permeate gas;

[0011] A flow tube assembly, the flow tube assembly comprising:

[0012] a drainage tube, wherein the drainage tube connects the gas analyzer and the mounting mechanism, and the permeated gas separated by the gas separation membrane disposed on the mounting mechanism is discharged from the mounting mechanism and introduced into the gas analyzer through the drainage tube, and the gas analyzer is used to detect the gas components of the permeated gas;

[0013] A reflux pipe, the reflux pipe is installed on the gas analyzer and communicated with the processing space through the air inlet, and the permeate gas detected by the gas analyzer is introduced into the processing space through the reflux pipe;

[0014] The air induction component comprises:

[0015] a first air induction member, the first air induction member being located in the processing space and being arranged above the air inlet, the first air induction member being arranged to guide the infiltrated air introduced into the processing space from the air inlet to flow upward, and the first air induction member being located at a side of the air guide passage close to the air outlet;

[0016] The second air inducing member is located at one end of the air guide duct away from the air outlet, the second air inducing member is configured to guide the gas in the processing space into the air guide duct, the gas separation membrane arranged on the mounting mechanism is parallel to the flow direction of the gas guided by the second air inducing member and introduced into the air guide duct, the second air inducing member is configured to blow the residual gas enriched on the surface of the gas separation membrane toward the air outlet to guide it to above the first air inducing member, and the first air inducing member is configured to mix the residual gas above it with the permeate gas guided by it and flowing upward.

[0017] According to one embodiment of the present invention, the continuous gas separation membrane detection equipment includes a control device and an environmental monitoring device, the control device includes a controller, the environmental monitoring device includes a temperature monitoring unit, the temperature monitoring unit includes a temperature control mechanism, the temperature control mechanism is installed on the equipment housing and is controllably connected to the controller, and the temperature control mechanism is used for cooling or heating to adjust the temperature in the processing space.

[0018] According to one embodiment of the present invention, the temperature monitoring unit includes a temperature sensor, which is installed on the equipment housing and is at least partially located in the processing space. The temperature sensor is used to detect the temperature in the processing space. The temperature sensor is communicatively connected to the controller, and the controller selectively controls the temperature control mechanism based on feedback from the temperature sensor.

[0019] According to one embodiment of the present invention, the environmental monitoring device includes a humidity monitoring unit, and the humidity monitoring unit also includes a humidity control mechanism. The humidity control mechanism is installed on the equipment housing and is controllably connected to the controller. The humidity control mechanism is used for humidifying or dehumidifying to adjust the humidity in the processing space.

[0020] According to one embodiment of the present invention, the humidity monitoring unit also includes a humidity sensor, which is installed on the equipment housing and is at least partially located in the processing space. The humidity sensor is used to detect the humidity in the processing space. The humidity sensor is communicatively connected to the controller, and the controller selectively controls the humidity control mechanism according to feedback control of the humidity sensor.

[0021] According to one embodiment of the present invention, the continuous gas separation membrane detection equipment also includes a prompting member, which is controllably connected to the controller. After the controller controls the temperature control mechanism to regulate the temperature in the processing space and / or controls the humidity control mechanism to regulate the humidity in the processing space according to feedback from the temperature sensor and / or the humidity sensor, the controller selectively controls the operation of the prompting member according to feedback from the temperature sensor and / or the humidity sensor.

[0022] According to one embodiment of the present invention, the humidity control mechanism includes a humidifying component and a dehumidifying component, the humidifying component is controllably connected to the controller and installed on the equipment housing, the humidifying component is used to humidify the processing space, the dehumidifying component includes a drying component, the drying component includes a drying element, a valve group and a pipe group, the pipe group includes a first pipe, the drying element is connected to the processing space through the first pipe, the drying element introduces dry gas into the processing space through the first pipe, the valve group includes a pressure relief valve, the pipe group includes a second pipe, the second pipe is connected to the processing space, the pressure relief valve is installed on the second pipe, the pressure relief valve is used to open and close the second pipe, the drying element and the pressure relief valve are both controllably connected to the controller, and the controller selectively controls the drying component to perform dehumidification according to feedback from the humidity sensor.

[0023] According to an embodiment of the present invention, one end of the first pipe communicating with the processing space and one end of the second pipe communicating with the processing space are staggered and respectively located at two opposite ends of the equipment housing.

[0024] According to one embodiment of the present invention, the dehumidification component includes a dehumidification component, which is controllably connected to the controller and installed on the equipment housing. The controller selectively controls the dehumidification component and the drying component to perform dehumidification action in sequence according to feedback from the humidity sensor.

[0025] In order to solve the above technical problems and achieve at least one advantage of the present invention, the present invention provides a working method of the continuous gas separation membrane detection device, comprising the following steps:

[0026] The gas in the processing space is guided by the second air inducing member to enter the air guide channel, and is separated by a gas separation membrane located in the air guide channel and arranged on the mounting mechanism to separate the permeated gas;

[0027] The permeated gas is introduced into the gas analyzer through the drainage pipe, and the gas components of the permeated gas are detected by the gas analyzer. The permeated gas that has completed the gas component detection operation is discharged from the gas analyzer and re-introduced into the processing space through the reflux pipe;

[0028] The permeate gas introduced into the processing space by the reflux pipe is guided by the first air-inducing member to flow upward, and at the same time, the residual gas enriched on the surface of the gas separation membrane is guided by the second air-inducing member to flow above the first air-inducing member, so that the residual gas above it is mixed by the first air-inducing member with the permeate gas guided by it to flow upward.

[0029] Compared with the prior art, the continuous gas separation membrane detection device of the present invention has the following technical effects:

[0030] 1. After the permeate gas separated by the gas separation membrane is detected by the gas analyzer, the permeate gas that has completed the gas component detection operation is refluxed to maintain the gas composition in the processing space stable, so as to prevent the gas composition from changing drastically and affecting the accuracy of the gas separation membrane separation performance detection. In addition, during the test, the gas flow forms a circulation system, which has lower energy loss than the gas replacement method.

[0031] 2. By mixing the refluxed permeate gas with the residual gas enriched on the surface of the gas separation membrane, the gas composition ratio can be quickly restored to stability to avoid excessive fluctuations in the gas composition ratio that may affect detection.

[0032] 3. The air guide box is used to surround the installation mechanism in a direction perpendicular to the flow direction of the gas guided by the second air guide member and entering the air guide duct, so as to prevent the gas from flowing from channels other than the second air guide member to the gas separation membrane arranged on the installation mechanism, thereby preventing the permeate gas that has not been mixed with the residual gas from interfering with the gas separation membrane test.

[0033] 4. The second air inducing member and the first air inducing member are respectively arranged on both sides of the air guide box so as to maintain a predetermined distance between the first air inducing member and the second air inducing member to prevent the distance between the two members from being too close, so that the permeate gas introduced into the processing space or the permeate gas and residual gas that have not been mixed evenly are guided by the second air inducing member and introduced into the air guide duct, thereby affecting the performance test of the gas separation membrane arranged in the air guide duct and installed on the installation mechanism.

[0034] 5. During the test, a stable test environment is provided for the gas separation membrane test, reducing the impact of the environment on the performance test, and combined with the design of permeate gas reflux, compared with the existing gas replacement method, it effectively reduces energy consumption. In addition, by automatically controlling the temperature and humidity in the processing space, the performance of the gas separation membrane under different environments can be tested.

[0035] 6. In the dehumidification process, the dehumidification component is the main one and the drying component is the auxiliary one. Compared with the method of using only the drying component for dehumidification, the dehumidification method of the dehumidification component and the drying component is more energy-efficient. In addition, the cooperation of the dehumidification component and the drying component can meet the test requirements under extreme humidity conditions, such as relative humidity of 0%. Compared with common dehumidifiers, the dehumidification range is wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 The schematic diagram of the structure of the continuous gas separation membrane detection device of the present invention is shown.

[0037] Figure 2 A partial structural schematic diagram of the continuous gas separation membrane detection device of the present invention is shown.

[0038] Figure 3 Shows Figure 2 Structural top view.

[0039] Figure 4 Shows Figure 2 A magnified view of the structure in the middle.

[0040] Figure 5 Shows Figure 2 Enlarged view of the structure at point B in the middle.

[0041] Figure 6The schematic diagram of the installation structure of the continuous gas separation membrane detection device of the present invention is shown.

[0042] Figure 7 An exploded view of the installation structure of the continuous gas separation membrane detection device of the present invention is shown.

[0043] Figure 8 A partial structural block diagram of the continuous gas separation membrane detection device of the present invention is shown.

[0044] Reference numerals:

[0045] Equipment body 10; air inlet 101; equipment housing 11; processing space 1101; flow pipe group 12; drainage pipe 121; return pipe 122; air guide box 13; air guide duct 1301; air outlet 1302; box body 131; installation port 13101; opening and closing member 132;

[0046] Mounting mechanism 20; mounting member 21; mounting body 211; mounting seat 2111; air outlet 211101; pressure cover 2112; air inlet 211201; support plate 212; through hole 21201; gasket set 213; first gasket 2131; second gasket 2132; third gasket 2133; fixing assembly 22; sleeve 221; slot 22101; pressing member 222;

[0047] Detection mechanism 30; gas analyzer 31; vacuum pump 32; flow meter 33;

[0048] Air induction component 40; first air induction member 41; second air induction member 42;

[0049] Control device 50; Controller 51; Operation screen 52;

[0050] Environmental monitoring device 60; temperature monitoring unit 61; temperature control mechanism 611; heating component 6111; refrigeration component 6112; temperature sensor 612; humidity monitoring unit 62; humidity control mechanism 621; humidification component 6211; dehumidification component 6212; drying component 62121; drying element 621211; valve group 621212; pressure relief valve 6212121; switch valve 6212122; pipeline group 621213; first pipeline 6212131; second pipeline 6212132; third pipeline 6212133; compressor 621214; dehumidification component 62122; humidity sensor 622;

[0051] Prompt 70. DETAILED DESCRIPTION

[0052] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0053] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0054] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0055] refer to Figures 1 to 5 A continuous gas separation membrane detection device according to a preferred embodiment of the present invention will be described in detail below. The continuous gas separation membrane detection device includes a device body 10 and a mounting mechanism 20. The device body 10 includes a device housing 11. The device housing 11 has a processing space 1101. The mounting mechanism 20 is located in the processing space 1101. The mounting mechanism 20 is used to install a gas separation membrane. The gas separation membrane arranged on the mounting mechanism 20 can separate the gas in the device body 10 to separate the permeate gas.

[0056] The device body 10 also includes a flow tube group 12, and the flow tube group 12 includes a drainage tube 121. The continuous gas separation membrane detection device includes a detection mechanism 30, and the detection mechanism 30 includes a gas phase analyzer 31. The drainage tube 121 connects the gas phase analyzer 31 and the installation mechanism 20 located in the processing space 1101. The permeate gas separated by the gas separation membrane installed in the installation mechanism 20 is discharged from the installation mechanism 20 and introduced into the gas phase analyzer 31 through the drainage tube 121. The gas phase analyzer 31 is used to detect the gas components of the permeate gas, so as to analyze the separation performance of the gas separation membrane later.

[0057] The flow tube group 12 also includes a reflux pipe 122. The equipment body 10 also has an air inlet 101 connected to the processing space 1101. The reflux pipe 122 is installed on the gas analyzer 31 and connected to the processing space 1101 through the air inlet 101. The permeate gas detected by the gas analyzer 31 is introduced into the processing space 1101 through the reflux pipe 122, so that the gas composition in the processing space 1101 is maintained stable by the reflux of the permeate gas, so as to prevent the gas composition in the processing space 1101 from changing drastically and affecting the accuracy of the gas separation performance detection of the gas separation membrane. In addition, during the test, the gas flow constitutes a circulation system, and the energy loss is lower than that of the gas replacement method.

[0058] Preferably, the air inlet 101 is implemented as a port of the return pipe 122 at one end away from the gas analyzer 31 , and the return pipe 122 penetrates the equipment housing 11 to form a side wall of the processing space 1101 and extends into the processing space 1101 .

[0059] As a variant, the air inlet 101 is formed in the device housing 11 , the reflux pipe 122 is installed on the outer wall of the device housing 11 and its port away from one end of the gas analyzer 31 corresponds to the air inlet 101 .

[0060] refer to Figures 1 to 3 The detection mechanism 30 also includes a vacuum pump 32, which is installed on the drainage pipe 121 or the reflux pipe 122. The vacuum pump 32 is used to guide the permeate gas discharged from the installation mechanism 20 through the drainage pipe 121 to the gas analyzer 31.

[0061] Preferably, the vacuum pump 32 is installed on the drainage tube 121 , and the vacuum pump 32 sucks the permeated gas discharged from the installation mechanism 20 through the drainage tube 121 and blows the permeated gas toward the gas analyzer 31 .

[0062] Furthermore, the detection mechanism 30 also includes a flow meter 33, which is installed on the drainage pipe 121 or the reflux pipe 122. The flow meter 33 is used to detect the flow rate of the permeate gas discharged from the installation mechanism 20, so as to subsequently analyze the separation performance of the gas separation membrane.

[0063] Specifically, the gas analyzer 31 and the flow meter 33 detect the gas components and flow rate of the permeated gas at regular intervals. If the proportion of the required gas phase components in the permeated gas decreases continuously or the flow rate decreases continuously, it means that the separation performance of the gas separation membrane is weakened.

[0064] Preferably, the flow meter 33 is installed on the reflux pipe 122 , and the flow meter 33 is used to detect the flow rate of the permeate gas that has completed the gas component detection operation when it flows through the reflux pipe 122 .

[0065] refer to Figure 3 The device body 10 includes an air guide box 13, which is installed in the processing space 1101. The air guide box 13 has an air guide channel 1301 and an air outlet 1302 connected to the air guide channel 1301, and the mounting mechanism 20 is installed in the air guide channel 1301.

[0066] refer to Figures 2 to 4 The continuous gas separation membrane detection device includes an air induction component 40, and the air induction component 40 includes a first air induction member 41. The first air induction member 41 is located in the processing space 1101 and is arranged above the air inlet 101. The first air induction member 41 is arranged to guide the permeate gas introduced into the processing space 1101 from the air inlet 101 to flow upward. The first air induction member 41 is located on the side of the air guide 1301 close to the air outlet 1302. The air induction component 40 also includes a second air induction member 42. The second air induction member 42 is located at one end of the air guide 1301 away from the air outlet 1302. The second air induction member 42 is arranged to guide the gas in the processing space 1101 to be introduced into the air guide 1301, so as to provide gas to the installation mechanism 20 in the air guide 1301, so that the gas separation membrane arranged in the installation mechanism 20 performs a gas separation operation.

[0067] It is worth mentioning that the gas separation membrane arranged on the installation mechanism 20 is parallel to the gas flow direction guided by the second air induction member 42 and introduced into the air guide 1301. The second air induction member 42 is configured to blow the residual gas enriched on the surface of the gas separation membrane to the air outlet 1302 for discharge to prevent it from affecting the test. In addition, the second air induction member 42 can guide the residual gas to flow above the first air induction member 41, so that the residual gas above it can be mixed with the permeate gas guided by the first air induction member 41 and flowing upward, so that the gas composition ratio in the processing space 1101 can quickly return to stability, so as to prevent the gas composition ratio guided by the second air induction member 42 and blown to the air guide 1301 from fluctuating too much and affecting the detection effect.

[0068] In addition, the air guide box 13 surrounds the installation mechanism 20 in a direction perpendicular to the flow direction of the gas guided by the second air guide member 42 and entering the air guide duct 1301, so as to prevent the gas from flowing from the channel other than the second air guide member 42 to the gas separation membrane arranged on the installation mechanism 20, thereby preventing the permeate gas that has not been mixed with the residual gas from interfering with the gas separation membrane test. At the same time, since the second air guide member 42 is arranged at one end of the air guide box 13 away from the first air guide member 41, the first air guide member 41 and the second air guide member 42 are kept at a predetermined distance, so as to prevent the distance between the two from being too close, so that the permeate gas introduced into the processing space 1101 or the permeate gas and the residual gas that have not been mixed are guided by the second air guide member 42 and introduced into the air guide duct 1301, thereby affecting the performance test of the gas separation membrane arranged in the air guide duct 1301 and installed on the installation mechanism 20.

[0069] Preferably, the first air inducing member 41 and the second air inducing member 42 are both implemented as fans.

[0070] refer to Figure 5 Further, the air guide box 13 includes a box body 131 and an opening and closing member 132, the box body 131 has a mounting opening 13101, and the opening and closing member 132 is installed on the box body 131 so as to cover the mounting opening 13101. The air outlet 1302 is formed on the box body 131. When the opening and closing member 132 covers the mounting opening 13101, the box body 131 and the opening and closing member 132 jointly form the air guide 1301. The mounting mechanism 20 is detachably arranged on the air guide 1301, so that after the mounting opening 13101 is opened, it is convenient to take the mounting mechanism 20, so as to disassemble and assemble the gas separation membrane arranged on the mounting mechanism 20, so as to test different types of gas separation membranes.

[0071] refer to Figure 6 to Figure 7The mounting mechanism 20 includes a mounting member 21 and at least one fixing assembly 22. The mounting member 21 includes a mounting body 211. The mounting body 211 includes a mounting seat 2111 and a pressure cover 2112. The pressure cover 2112 is configured to be stacked on the mounting seat 2111. The pressure cover 2112 has at least one air inlet 211201. The gas separation membrane is disposed between the stacked pressure cover 2112 and the mounting seat 2111 and partially corresponds to the air inlet 211201. The mounting seat 2111 has an exhaust port 211101. The exhaust port 211101 is used to discharge the permeate separated by the gas separation membrane. The exhaust port 211101 is connected to the gas analyzer 31 through the drainage pipe 121. The pressure cover 2112 and the mounting seat 2111 are pressed by the fixing assembly 22 so that the two are in contact with each other to be assembled into one body, and the gas separation membrane is fixed therebetween.

[0072] Preferably, the gland 2112 is detachably connected to the mounting seat 2111, so that the subsequent disassembly and assembly of the gas separation membrane can be facilitated by separating the gland 2112 from the mounting seat 2111. At least two fixing components 22 are provided, wherein the two fixing components 22 are arranged opposite to each other and jointly apply pressure to the gland 2112 and the mounting seat 2111 so that the two are in contact with each other, so as to fix the gas separation membrane between the two.

[0073] As a deformable form, the gland 2112 is pivotally connected to the mounting seat 2111, so as to facilitate the subsequent disassembly and assembly of the gas separation membrane by rotating the gland 2112 away from the surface of the mounting seat 2111. The fixing assembly 22 is provided with one, and the fixing assembly 22 applies pressure to the gland 2112 and the mounting seat 2111 from one end of the gland 2112 away from its rotation axis so that the two abut against each other, so as to fix the gas separation membrane between the two.

[0074] Preferably, the fixing assembly 22 comprises a ferrule 221 and at least one pressing member 222, the ferrule 221 having a slot 22101, the distance between two opposite inner walls of the slot 22101 being greater than the overall thickness of the gland 2112 and the mounting seat 2111 when they are stacked. The pressing member 222 is threadedly connected to any one of the two opposite side walls of the ferrule 221 to form the slot 22101. When the gland 2112 and the mounting seat 2111 are stacked and placed as a whole in the slot 22101, the pressing member 222 is configured to be able to rotate into the slot 22101 to apply pressure to either the gland 2112 or the mounting seat 2111 so as to press the two as a whole toward the side wall opposite to the side wall to which the pressing member 222 is threadedly connected, so as to assemble the mounting seat 2111 and the gland 2112 into one body.

[0075] The mounting member 21 further includes a support plate 212, which is installed between the stacked gland 2112 and the mounting seat 2111. When the gas separation membrane is installed on the mounting member 21, the gas separation membrane is located between the gland 2112 and the support plate 212, and the support plate 212 supports the gas separation membrane to prevent the gas separation membrane from being torn by the force of the airflow. The support plate 212 is covered with a plurality of through holes 21201 distributed at intervals, so that the permeate separated by the gas separation membrane can flow to the exhaust port 211101 through the through holes 21201.

[0076] The mounting member 21 further includes a gasket set 213, and the gasket set 213 includes a first gasket 2131. When the gland 2112 and the mounting seat 2111 are assembled into one, the first gasket 2131 is located between the gland 2112 and the mounting seat 2111, and the first gasket 2131 is used to seal the gland 2112 and the mounting seat 2111.

[0077] The gasket assembly 213 further includes a second gasket 2132. When the gas separation membrane is installed on the installation component 21, the second gasket 2132 is located between the pressure cover 2112 and the gas separation membrane. The second gasket 2132 is used to seal the pressure cover 2112 and the gas separation membrane.

[0078] The gasket group 213 also includes a third gasket 2133. When the gas separation membrane is installed on the mounting component 21, the third gasket 2133 is located between the gas separation membrane and the mounting seat 2111 and on the peripheral side of the support plate 212. The third gasket 2133 is used to seal the gas separation membrane and the mounting seat 2111.

[0079] refer to Figure 1 and Figure 8 The continuous gas separation membrane detection equipment includes a control device 50, and the control device 50 includes a controller 51. The first air inducing member 41 and the second air inducing member 42 are both controllably connected to the controller 51, and the controller 51 can control the start and stop and operating speed of the first air inducing member 41 and the second air inducing member 42.

[0080] It is worth mentioning that by adjusting the running speed of the second air inducing member 42 , the separation performance of the gas separation membrane disposed on the installation mechanism 20 at different wind speeds can be tested, thereby improving the reliability of the test.

[0081] The running speed of the first air induction member 41 is adjusted to adapt to the separation performance of different gas separation membranes, so as to ensure that the first air induction member 41 can fully mix the permeate gas introduced into the processing space 1101 and the residual gas in the processing space 1101. In other words, when the separation performance of the gas separation membrane is good, more permeate gas is separated. At this time, the running speed of the first air induction member 41 is increased so that the permeate gas introduced into the processing space 1101 is guided by the first air induction member 41 and flows up quickly to prevent the permeate gas from diffusing at the bottom of the processing space 1101, so as to ensure that the permeate gas can be evenly mixed with the residual gas guided by the second air induction member 42 and flowing above the first air induction member 41; when the separation performance of the gas separation membrane is poor, less permeate gas is separated. At this time, the running speed of the first air induction member 41 is reduced to save energy consumption on the basis of mixing the permeate gas and the residual gas.

[0082] The continuous gas separation membrane detection device includes an environment monitoring device 60 . The environment monitoring device 60 is installed in the device housing 11 . The environment monitoring device 60 is used to monitor and regulate the temperature and humidity in the processing space 1101 .

[0083] The environmental monitoring device 60 includes a temperature monitoring unit 61, and the temperature monitoring unit 61 includes a temperature control mechanism 611. The temperature control mechanism 611 is installed on the equipment housing 11 and is controllably connected to the controller 51. The temperature control mechanism 611 is used for cooling or heating to adjust the temperature in the processing space 1101, so as to provide a test environment with different temperatures for the gas separation membrane.

[0084] In one embodiment, the temperature control mechanism 611 is implemented as a heat exchange device, such as an air conditioner.

[0085] The temperature monitoring unit 61 includes a temperature sensor 612, which is installed in the device housing 11 and at least partially located in the processing space 1101. The temperature sensor 612 is used to detect the temperature in the processing space 1101. The temperature sensor 612 is in communication with the controller 51. The controller 51 selectively controls the temperature control mechanism 611 according to the feedback of the temperature sensor 612 to ensure that the temperature in the processing space 1101 is maintained at a preset temperature, so that the test temperature is more accurate and the reliability of the test is improved.

[0086] Specifically, the temperature sensor 612 detects the temperature in the processing space 1101 and feeds back to the controller 51, so that the controller 51 determines whether the actual temperature in the processing space 1101 is consistent with the preset temperature, and selectively controls the temperature control mechanism 611, so as to improve the accuracy of the temperature in the processing space 1101.

[0087] Preferably, the temperature control mechanism 611 includes a heating component 6111 and a cooling component 6112, and the heating component 6111 and the cooling component 6112 are both controllably connected to the controller 51 and are both installed in the equipment housing 11, the heating component 6111 is used for heating to increase the temperature in the processing space 1101, and the cooling component 6112 is used for cooling to lower the temperature in the processing space 1101.

[0088] Preferably, the heating component 6111 is implemented as a heater, and the cooling component 6112 is implemented as a refrigerator.

[0089] The environmental monitoring device 60 includes a humidity monitoring unit 62, and the humidity monitoring unit 62 also includes a humidity control mechanism 621. The humidity control mechanism 621 is installed on the equipment housing 11 and is controllably connected to the controller 51. The humidity control mechanism 621 is used for humidifying or dehumidifying to adjust the humidity in the processing space 1101, so as to provide a test environment with different humidity for the gas separation membrane.

[0090] The humidity monitoring unit 62 further includes a humidity sensor 622, which is installed on the device housing 11 and at least partially located in the processing space 1101. The humidity sensor 622 is used to detect the humidity in the processing space 1101, and the humidity sensor 622 is in communication with the controller 51. The controller 51 selectively controls the humidity control mechanism 621 according to the feedback control of the humidity sensor 622 to ensure that the humidity in the processing space 1101 is maintained at a preset humidity, so as to make the test humidity more accurate and improve the reliability of the test.

[0091] Specifically, the humidity sensor 622 detects the humidity in the processing space 1101 and feeds back to the controller 51, so that the controller 51 determines whether the actual humidity in the processing space 1101 is consistent with the preset humidity, and selectively controls the humidity control mechanism 621 to improve the accuracy of the humidity in the processing space 1101.

[0092] In this way, through the cooperation of the equipment body 10, the environment monitoring device 60 and the control device 50, a stable test environment is provided for the gas separation membrane test, reducing the impact of the environment on the performance test, and combined with the design of permeate gas reflux, compared with the existing gas replacement method, energy consumption is effectively reduced. In addition, by automatically controlling the temperature and humidity in the processing space 1101, the performance of the gas separation membrane under different environments can be tested.

[0093] Preferably, the humidity control mechanism 621 includes a humidifying component 6211 and a dehumidifying component 6212, the humidifying component 6211 and the dehumidifying component 6212 are both controllably connected to the controller 51 and are both installed on the equipment housing 11, the humidifying component 6211 is used to humidify the processing space 1101 to increase the humidity in the processing space 1101, and the humidifying component 6211 is used to dehumidify the processing space 1101 to reduce the humidity in the processing space 1101.

[0094] Preferably, the humidifying component 6211 is implemented as a humidifier.

[0095] In one embodiment, the dehumidification component 6212 is implemented as a rotary dehumidifier to meet the demand of creating a low humidity environment at low temperature.

[0096] Preferably, the dehumidification component 6212 includes a drying component 62121, the drying component 62121 includes a drying piece 621211, a valve group 621212 and a pipe group 621213, the pipe group 621213 includes a first pipe 6212131, the drying piece 621211 is connected to the processing space 1101 through the first pipe 6212131, the drying piece 621211 introduces dry gas into the processing space 1101 through the first pipe 6212131 to reduce the humidity in the processing space 1101 by the dry gas. The valve group 621212 includes a pressure relief valve 6212121, and the pipe group 621213 includes a second pipe 6212132, the second pipe 6212132 is connected to the processing space 1101, and the pressure relief valve 6212121 is installed on the second pipe 6212132. The pressure relief valve 6212121 is used to open and close the second pipe 6212132, thereby controlling the pressure relief of the processing space 1101, so that when the compressed gas is introduced into the processing space 1101, the processing space 1101 is depressurized, so that the pressure in the processing space 1101 is kept constant. The drying component 621211 and the pressure relief valve 6212121 are both controllably connected to the controller 51. The controller 51 selectively controls the drying component 62121 to perform dehumidification according to the feedback of the humidity sensor 622.

[0097] It is worth mentioning that one end of the first pipe 6212131 connected to the processing space 1101 and one end of the second pipe 6212132 connected to the processing space 1101 are staggered and respectively located at two opposite ends of the equipment shell 11 to prevent the dry gas introduced into the processing space 1101 from being discharged immediately.

[0098] Preferably, the drying element 621211 is implemented as a dryer.

[0099] The valve group 621212 also includes a switch valve 6212122, which is installed on the first pipeline 6212131 and is controllably connected to the controller 51. The switch valve 6212122 is used to switch the first pipeline 6212131, thereby controlling the drying element 621211 to introduce dry gas into the processing space 1101, and preventing the gas in the processing space 1101 from overflowing by closing the first pipeline 6212131.

[0100] Furthermore, the dehumidification component 6212 includes a dehumidification component 62122, which is controllably connected to the controller 51 and installed on the equipment housing 11. The controller 51 selectively controls the dehumidification component 62122 and the drying component 62121 to perform dehumidification actions in sequence according to the feedback of the humidity sensor 622.

[0101] Preferably, the dehumidification component 62122 is implemented as a condensing dehumidifier.

[0102] Specifically, the humidity sensor 622 detects the humidity in the processing space 1101 and feeds back to the controller 51, so that the controller 51 determines whether the actual humidity in the processing space 1101 is consistent with the preset humidity. If the actual humidity in the processing space 1101 is higher than the preset humidity, the controller 51 controls the dehumidification component 62122 to operate to dehumidify the processing space 1101, thereby reducing the humidity in the processing space 1101. After the dehumidification component 62122 runs for a predetermined time, the humidity sensor 622 detects the humidity in the processing space 1101 and feeds back to the controller 51. If the controller 51 determines that the actual humidity in the processing space 1101 is consistent with the preset humidity, the controller 51 controls the dehumidification component 62122 to suspend operation to complete the humidity adjustment. If the controller 51 determines that the actual humidity in the processing space 1101 is still higher than the preset humidity, the controller 51 controls the dehumidification component 62122 to suspend operation, controls the drying element 621211 to operate, controls the switch valve 6212122 to operate to open the first pipe 6212131, and controls the pressure relief valve 6212121 to operate to open the second pipe 621 2132, at this time, the drying element 621211 is introduced into the dry space of the processing space 1101 through the first pipe 6212131, and at the same time, part of the gas in the processing space 1101 is discharged through the second pipe 6212132, so as to utilize the dry gas to further reduce the humidity in the processing space 1101, until the controller 51 receives the feedback from the humidity sensor 622 and determines that the actual humidity in the processing space 1101 is consistent with the preset humidity. At this time, the controller 51 controls the drying element 621211 to suspend operation, controls the switch valve 6212122 to operate to close the first pipe 6212131, and controls the pressure relief valve 6212121 to operate to close the second pipe 6212132, so as to complete the humidity adjustment.

[0103] In the dehumidification process, the dehumidification component 62122 is the main one and the drying component 62121 is the auxiliary one. Compared with the dehumidification method using only the drying component 62121, the dehumidification method of the dehumidification component 62122 and the drying component 62121 is more energy-efficient. In addition, the cooperation of the dehumidification component 62122 and the drying component 62121 can meet the test requirements under extreme humidity conditions, such as 0% relative humidity, and the dehumidification range is wider than that of common dehumidifiers.

[0104] Furthermore, the drying component 62121 also includes a compressor 621214, the pipeline group 621213 includes a third pipeline 6212133, the compressor 621214 is connected to the drying element 621211 through the third pipeline 6212133, the compressor 621214 is connected to the outside world, the compressor 621214 is used to compress the gas introduced from the outside world into the interior, and the compressor 621214 introduces the compressed gas into the drying element 621211 through the third pipeline 6212133.

[0105] The control device 50 further includes an operation screen 52, which is in communication with the controller 51. The staff sets parameters on the operation screen 52, which are fed back to the controller 51 by the operation screen 52. The controller 51 controls any one or more of the first air inducing member 41, the second air inducing member 42, the temperature control mechanism 611 and the humidity control mechanism 621 to maintain the processing space 1101 under the set conditions.

[0106] The continuous gas separation membrane detection device further includes a prompting member 70, which is controllably connected to the controller 51. After the controller 51 controls the temperature control mechanism 611 to adjust the temperature in the processing space 1101 and / or controls the humidity control mechanism 621 to adjust the humidity in the processing space 1101 according to the feedback of the temperature sensor 612 and / or the humidity sensor 622, the controller 51 selectively controls the operation of the prompting member 70 according to the feedback of the temperature sensor 612 and / or the humidity sensor 622, so that when the temperature control mechanism 611 and / or the humidity control mechanism 621 fail, the prompting member 70 issues an alarm to prompt the staff, so as to avoid the risks that may occur during the test.

[0107] Preferably, the reminder element 70 is implemented as an alarm.

[0108] The present application also proposes a working method of a continuous gas separation membrane detection device, comprising the following steps:

[0109] The gas in the processing space 1101 is guided by the second air inducing member 42 to enter the air guide duct 1301, and is separated by a gas separation membrane located in the air guide duct 1301 and disposed on the mounting mechanism 20 to separate the permeated gas.

[0110] The permeated gas is introduced into the gas analyzer 31 through the drainage pipe 121, and the gas components of the permeated gas are detected by the gas analyzer 31. The permeated gas that has completed the gas component detection operation is discharged from the gas analyzer 31 and re-introduced into the processing space 1101 through the reflux pipe 122;

[0111] The permeate gas introduced into the processing space 1101 by the reflux pipe 122 is guided by the first air-inducing member 41 to flow upward, and at the same time, the residual gas enriched on the surface of the gas separation membrane is guided by the second air-inducing member 42 to flow above the first air-inducing member 41, so that the residual gas above the first air-inducing member 41 is mixed with the permeate gas guided by the first air-inducing member 41 to flow upward.

[0112] Preferably, the working method of the continuous gas separation membrane detection equipment includes the following steps: placing the gas separation membrane on the mounting seat 2111 or the pressure cover 2112, and then stacking the pressure cover 2112 and the mounting seat 2111 and placing them as a whole in the slot 22101, and rotating the clamping piece 222 to make it move into the slot 22101, and the clamping piece 222 applies pressure to either the pressure cover 2112 or the mounting seat 2111 to press the two as a whole toward the side wall opposite to the side wall to which the clamping piece 222 is threadedly connected, so that the mounting seat 2111 and the pressure cover 2112 are assembled into one, and the gas separation membrane is assembled to the mounting component 21.

[0113] Preferably, the working method of the continuous gas separation membrane detection device comprises the following steps: the vacuum pump 32 guides the permeate gas discharged from the installation mechanism 20 to the gas analyzer 31 through the drainage pipe 121 .

[0114] Preferably, the working method of the continuous gas separation membrane detection device comprises the following steps: the flow meter 33 detects the flow rate of the permeate gas discharged from the installation mechanism 20 .

[0115] Preferably, the working method of the continuous gas separation membrane detection device comprises the following steps: the first air inducing member 41 and the second air inducing member 42 are controlled by the controller 51 to adjust the operating speed.

[0116] Preferably, the working method of the continuous gas separation membrane detection device comprises the following steps:

[0117] The temperature control mechanism 611 is controlled by the controller 51 to perform cooling or heating, thereby adjusting the temperature in the processing space 1101;

[0118] The temperature sensor 612 detects the temperature in the processing space 1101 and feeds back to the controller 51 . The controller 51 selectively controls the temperature control mechanism 611 to accurately regulate the temperature in the processing space 1101 .

[0119] Preferably, the working method of the continuous gas separation membrane detection device comprises the following steps:

[0120] The humidity sensor 622 is controlled by the controller 51 to perform humidification or dehumidification, thereby adjusting the humidity in the processing space 1101;

[0121] The humidity sensor 622 detects the humidity in the processing space 1101 and feeds back to the controller 51 , and the controller 51 selectively controls the humidity control mechanism 621 to accurately adjust the humidity in the processing space 1101 .

[0122] Preferably, the working method of the continuous gas separation membrane detection device comprises the following steps:

[0123] The humidity sensor 622 detects the humidity in the processing space 1101 and feeds back to the controller 51, so that the controller 51 determines whether the actual humidity in the processing space 1101 is consistent with the preset humidity;

[0124] If the actual humidity in the processing space 1101 is higher than the preset humidity, the controller 51 controls the dehumidification component 62122 to operate to dehumidify the processing space 1101 to reduce the humidity in the processing space 1101;

[0125] After the dehumidification component 62122 runs for a predetermined time, the humidity sensor 622 senses the humidity in the processing space 1101 and feeds back to the controller 51. If the controller 51 determines that the actual humidity in the processing space 1101 is consistent with the preset humidity, the controller 51 controls the dehumidification component 62122 to suspend operation to complete the humidity adjustment.

[0126] If the controller 51 determines that the actual humidity in the processing space 1101 is still higher than the preset humidity, the controller 51 controls the dehumidification component 62122 to stop running, controls the drying component 621211 to run, controls the switch valve 6212122 to run to open the first pipe 6212131, and controls the pressure relief valve 6212121 to run to open the second pipe 6212132. At this time, the drying component 621211 introduces the drying space into the processing space 1101 through the first pipe 6212131. At the same time, the processing space 1101 Part of the gas inside is discharged through the second pipe 6212132 to further reduce the humidity in the processing space 1101 by using dry gas, until the controller 51 receives feedback from the humidity sensor 622 and determines that the actual humidity in the processing space 1101 is consistent with the preset humidity. At this time, the controller 51 controls the drying element 621211 to suspend operation, controls the switch valve 6212122 to operate to close the first pipe 6212131, and controls the pressure relief valve 6212121 to operate to close the second pipe 6212132 to complete the humidity adjustment.

[0127] Preferably, the working method of the continuous gas separation membrane detection equipment includes the following steps: when testing the influence of different environments on the gas separation membrane, parameters are set through the operation screen 52, and the operation screen 52 is fed back to the controller 51, and the controller 51 controls any one or more of the first air inducing member 41, the second air inducing member 42, the temperature control mechanism 611 and the humidity control mechanism 621 to maintain the processing space 1101 under set conditions.

[0128] Preferably, the working method of the continuous gas separation membrane detection equipment includes the following steps: when the first air inducing member 41 and the second air inducing member 42 are running at a set speed and the temperature and humidity in the processing space 1101 are constant, the gas phase analyzer 31 and the flow meter 33 detect the gas components and flow rate of the permeated gas at regular intervals. If the proportion of the required gas phase components in the permeated gas continuously decreases or the flow rate continuously decreases, it means that the separation performance of the gas separation membrane is weakened.

[0129] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. Continuous gas separation membrane detection equipment, characterized in that: The continuous gas separation membrane detection device comprises: An installation mechanism, the installation mechanism is used to install the gas separation membrane; A detection mechanism, the detection mechanism comprising a gas analyzer; The device body has an air inlet, and the device body comprises: an equipment housing, the equipment housing having a processing space, the processing space being in communication with the air inlet; An air guide box, the air guide box is installed in the processing space, the air guide box has an air guide channel and an air outlet connected to the air guide channel, the mounting mechanism is installed in the air guide channel, and the gas separation membrane arranged in the mounting mechanism can separate the gas in the air guide channel to separate the permeate gas; A flow tube assembly, the flow tube assembly comprising: a drainage tube, wherein the drainage tube connects the gas analyzer and the mounting mechanism, and the permeated gas separated by the gas separation membrane disposed on the mounting mechanism is discharged from the mounting mechanism and introduced into the gas analyzer through the drainage tube, and the gas analyzer is used to detect the gas components of the permeated gas; A reflux pipe, the reflux pipe is installed on the gas analyzer and communicated with the processing space through the air inlet, and the permeate gas detected by the gas analyzer is introduced into the processing space through the reflux pipe; The air induction component comprises: a first air induction member, the first air induction member being located in the processing space and being arranged above the air inlet, the first air induction member being arranged to guide the infiltrated air introduced into the processing space from the air inlet to flow upward, and the first air induction member being located at a side of the air guide passage close to the air outlet; The second air inducing member is located at one end of the air guide duct away from the air outlet, the second air inducing member is configured to guide the gas in the processing space into the air guide duct, the gas separation membrane arranged on the mounting mechanism is parallel to the flow direction of the gas guided by the second air inducing member and introduced into the air guide duct, the second air inducing member is configured to blow the residual gas enriched on the surface of the gas separation membrane toward the air outlet to guide it to above the first air inducing member, and the first air inducing member is configured to mix the residual gas above it with the permeate gas guided by it and flowing upward.

2. The continuous gas separation membrane detection device according to claim 1, characterized in that: The continuous gas separation membrane detection equipment includes a control device and an environmental monitoring device, the control device includes a controller, the environmental monitoring device includes a temperature monitoring unit, the temperature monitoring unit includes a temperature control mechanism, the temperature control mechanism is installed on the equipment housing and is controllably connected to the controller, and the temperature control mechanism is used for cooling or heating to adjust the temperature in the processing space.

3. The continuous gas separation membrane detection device according to claim 2, characterized in that: The temperature monitoring unit includes a temperature sensor, which is installed on the equipment housing and at least partially located in the processing space. The temperature sensor is used to detect the temperature in the processing space. The temperature sensor is communicatively connected to the controller, and the controller selectively controls the temperature control mechanism based on feedback from the temperature sensor.

4. The continuous gas separation membrane detection device according to claim 3, characterized in that: The environment monitoring device includes a humidity monitoring unit, and the humidity monitoring unit also includes a humidity control mechanism. The humidity control mechanism is installed on the equipment housing and is controllably connected to the controller. The humidity control mechanism is used for humidifying or dehumidifying to adjust the humidity in the processing space.

5. The continuous gas separation membrane detection device according to claim 4, characterized in that: The humidity monitoring unit also includes a humidity sensor, which is installed on the equipment housing and at least partially located in the processing space. The humidity sensor is used to detect the humidity in the processing space. The humidity sensor is communicatively connected to the controller, and the controller selectively controls the humidity control mechanism according to feedback control of the humidity sensor.

6. The continuous gas separation membrane detection device according to claim 5, characterized in that: The continuous gas separation membrane detection equipment also includes a prompting member, which is controllably connected to the controller. After the controller controls the temperature control mechanism to regulate the temperature in the processing space and / or controls the humidity control mechanism to regulate the humidity in the processing space according to feedback from the temperature sensor and / or the humidity sensor, the controller selectively controls the operation of the prompting member according to feedback from the temperature sensor and / or the humidity sensor.

7. The continuous gas separation membrane detection device according to claim 5, characterized in that: The humidity control mechanism includes a humidifying component and a dehumidifying component, the humidifying component is controllably connected to the controller and installed on the equipment housing, the humidifying component is used to humidify the processing space, the dehumidifying component includes a drying component, the drying component includes a drying element, a valve group and a pipe group, the pipe group includes a first pipe, the drying element is connected to the processing space through the first pipe, the drying element introduces dry gas into the processing space through the first pipe, the valve group includes a pressure relief valve, the pipe group includes a second pipe, the second pipe is connected to the processing space, the pressure relief valve is installed on the second pipe, the pressure relief valve is used to open and close the second pipe, the drying element and the pressure relief valve are both controllably connected to the controller, and the controller selectively controls the drying component to perform dehumidification according to feedback from the humidity sensor.

8. The continuous gas separation membrane detection device according to claim 7, characterized in that: One end of the first pipeline communicating with the processing space and one end of the second pipeline communicating with the processing space are staggered and respectively located at two opposite ends of the equipment housing.

9. The continuous gas separation membrane detection device according to claim 7 or 8, characterized in that: The dehumidification component includes a dehumidification component, which is controllably connected to the controller and installed on the equipment housing. The controller selectively controls the dehumidification component and the drying component to perform dehumidification actions in sequence according to feedback from the humidity sensor.

10. The working method of the continuous gas separation membrane detection device according to any one of claims 1 to 9, characterized in that: The working method of the continuous gas separation membrane detection device comprises the following steps: The gas in the processing space is guided by the second air inducing member to enter the air guide channel, and is separated by a gas separation membrane located in the air guide channel and arranged on the mounting mechanism to separate the permeated gas; The permeated gas is introduced into the gas analyzer through the drainage pipe, and the gas components of the permeated gas are detected by the gas analyzer. The permeated gas that has completed the gas component detection operation is discharged from the gas analyzer and re-introduced into the processing space through the reflux pipe; The permeate gas introduced into the processing space by the reflux pipe is guided by the first air-inducing member to flow upward, and at the same time, the residual gas enriched on the surface of the gas separation membrane is guided by the second air-inducing member to flow above the first air-inducing member, so that the residual gas above it is mixed by the first air-inducing member with the permeate gas guided by it to flow upward.

Images