CN217304776U - Adsorption and desorption performance testing device - Google Patents
Adsorption and desorption performance testing device Download PDFInfo
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- CN217304776U CN217304776U CN202123127386.7U CN202123127386U CN217304776U CN 217304776 U CN217304776 U CN 217304776U CN 202123127386 U CN202123127386 U CN 202123127386U CN 217304776 U CN217304776 U CN 217304776U
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Abstract
The utility model provides an inhale desorption capability test device relates to and inhales desorption capability test technical field, include: the gas distribution assembly can provide gas and comprises a gas discharge port and a gas inlet port; a detection device for detecting a gas; the first end of the adsorption and desorption branch is connected with the gas discharge port through a first pipeline, and the second end of the adsorption and desorption branch is connected with the detection device through a second pipeline; the first ends of the first branch and the second branch are connected with the first pipeline, and the second ends of the first branch and the second branch are connected with the second pipeline; the gas inlet end of the recovery branch is connected with the second pipeline, and the gas outlet end of the recovery branch is connected with the gas inlet; the control valve group can be switched among a first state, a second state and a third state. The adsorption and desorption performance testing device can complete the testing of the adsorption performance and the desorption performance of the adsorption material in the adsorption device, and is simple in structure and convenient to use.
Description
Technical Field
The utility model relates to an inhale desorption capability test technical field, especially relate to an inhale desorption capability test device.
Background
In the aspect of gas purification, the adsorption method is considered as a technical route with low operation cost, good purification effect, low energy consumption and ideal application prospect. The adsorption and desorption performance of the adsorption material is important for the gas purification effect, so that the adsorption and desorption performance test of the adsorption material is very necessary.
Therefore, it is desirable to provide an adsorption and desorption performance testing apparatus capable of testing the adsorption and desorption performance of an adsorbent.
SUMMERY OF THE UTILITY MODEL
The utility model provides an inhale desorption capability test device for the absorption desorption capability to absorbent tests.
The utility model provides a pair of inhale desorption capability test device, include:
the gas distribution assembly can provide gas and comprises a gas discharge port and a gas inlet port;
a detection device for detecting a gas;
the gas discharge port is connected with the gas discharge port through a first pipeline, and the gas discharge port is connected with the gas discharge port through a second pipeline;
the first ends of the first branch and the second branch are connected with the first pipeline, and the second ends of the first branch and the second branch are connected with the second pipeline;
the gas inlet end of the recovery branch is connected with the second pipeline, and the gas outlet end of the recovery branch is connected with the gas inlet;
the control valve group comprises a first state, a second state and a third state, wherein in the first state, the first branch and the recovery branch are respectively conducted, in the second state, the adsorption and desorption branch and the recovery branch are respectively conducted, in the third state, the first branch, the second branch and the recovery branch are respectively conducted, and gas provided by the gas distribution assembly sequentially passes through the second branch, the adsorption and desorption branch, the first branch and the recovery branch.
According to the utility model provides an adsorption and desorption performance testing device, which also comprises a second adsorption device;
the second adsorption device is arranged on the recovery branch.
According to the utility model provides an adsorption and desorption performance testing device, the gas distribution assembly comprises a first container, a second container, a regulating valve and a flow regulating device;
the first container and the second container are used for storing different gases, and a gas inlet and a gas outlet of the first container and a gas inlet and a gas outlet of the second container are both connected with the gas discharge port;
the regulating valve and the flow regulating device are arranged between the first container and the gas discharge port and between the second container and the gas discharge port;
the gas inlet is connected with the gas inlet and the gas outlet of the first container.
According to the utility model, the adsorption and desorption performance testing device also comprises a switching device, and the number of the first containers is two;
the two first containers are connected to the gas discharge port through the switching device, and the switching device controls one of the two first containers to be connected to the gas discharge port.
According to the utility model provides an adsorption and desorption performance testing device, which also comprises a temperature adjusting component;
the temperature adjusting component is arranged outside the first adsorption device and can adjust the temperature of the first adsorption device.
According to the utility model provides a pair of inhale desorption capability test device still includes tail gas processing apparatus, tail gas processing apparatus's air inlet with detection device's gas vent is connected.
According to the utility model provides a pair of inhale desorption capability test device still includes the gaseous actuating mechanism of second, the gaseous actuating mechanism's of second air inlet with the second pipeline is connected.
According to the utility model, the adsorption and desorption performance testing device also comprises a gas mixing device;
the first container and the second container are both connected with the gas discharge port through the gas mixing device.
According to the utility model, the adsorption and desorption performance testing device also comprises a flow detection device;
the first container and the second container are both connected with the gas discharge port through the flow detection device.
According to the utility model provides a pair of inhale desorption capability test device, detection device is including parallelly connected hygrometer and the gas chromatograph who sets up.
The utility model provides a desorption capability test device is inhaled to gas at first, switches the valve unit to first state, and the gas mixture that the distribution subassembly provided this moment enters into the second pipeline through first branch road, and then partly enters into detection device, detects by detection device, and another part is through retrieving the branch road purification back, gets into the distribution subassembly and recycles.
When the detection device detects that the mixed gas provided by the gas distribution assembly meets the experimental requirements, the control valve group is switched to the second state, at the moment, the mixed gas provided by the gas distribution assembly enters the second pipeline after being adsorbed by the first adsorption device through the adsorption and desorption branch, then one part of the mixed gas enters the detection device and is detected by the detection device, and the other part of the mixed gas enters the gas distribution assembly for reuse after being purified by the recovery branch.
After obtaining the relevant data of adsorption performance, switch over the valve unit to the third state, the distribution subassembly provides the purified gas this moment, the purified gas enters into the second end of inhaling the desorption branch road through the second branch road, carry out the desorption to first absorption device through inhaling the desorption branch road, then enter into first branch road, enter into the second pipeline through first branch road in, then partly enters into detection device, detect by detection device, another part is through retrieving the branch road purification back, get into the distribution subassembly and recycle.
According to the configuration, the utility model provides an inhale desorption capability test device can accomplish the adsorption performance of adsorption material and the test of desorption capability in the first adsorption equipment to inhale desorption capability test device's simple structure, convenient to use. Meanwhile, the recovery branch can purify and recover gas in the test process, so that resource waste can be reduced, and the test cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is an adsorption and desorption performance testing apparatus provided in an embodiment of the present invention;
reference numerals:
1. a gas distribution assembly; 2. a gas discharge port; 3. a gas inlet port; 4. a first adsorption device; 5. a first pipeline; 7. a second pipeline; 8. a first branch; 9. a second branch circuit; 10. a first gas drive mechanism; 11. a purifier; 12. a second adsorption device; 13. a first container; 14. a second container; 15. adjusting a valve; 16. a flow regulating device; 17. a temperature regulating component; 18. a tail gas treatment device; 19. a second gas drive mechanism; 20. a gas mixing device; 21. a flow detection device; 22. a hygrometer; 23. a gas chromatograph; 24. a first on-off valve; 25. a second on-off valve; 26. a third on/off valve; 27. a fourth switching valve; 28. a fifth on-off valve; 29. a sixth switching valve; 30. a seventh on-off valve; 31. an eighth on-off valve; 32. and a ninth on-off valve.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The following describes the adsorption and desorption performance testing device in the embodiment provided by the present invention with reference to fig. 1.
Particularly, inhale desorption capability test device including distribution subassembly 1, detection device, inhale desorption branch road, first branch road 8, second branch road 9, retrieve branch road and valve unit.
Wherein, the distribution assembly 1 is used for providing gas, and the distribution assembly 1 includes gas discharge port 2 and gas inlet 3. For example, including but not limited to providing helium, nitrogen, helium doped with an impurity gas, and nitrogen doped with an impurity gas.
The detection device is used for detecting gas.
The adsorption and desorption branch is provided with a first adsorption device 4. The first adsorption means 4 is provided with an adsorbent therein. The first end of the adsorption and desorption branch is connected with the gas discharge port 2 through a first pipeline 5, and the second end is connected with the detection device through a second pipeline 7.
A first branch 8 and a second branch 9, both of which have first ends connected to the first pipeline 5 and second ends connected to the second pipeline 7.
The recovery branch is provided with a first gas driving mechanism 10 and a purifier 11. The gas inlet end of the recovery branch is connected with the second pipeline 7, and the gas outlet end of the recovery branch is connected with the gas inlet 3. It should be noted that the purifier 11 belongs to the product in the prior art, and can be used for removing impurities in the gas to achieve the purpose of gas purification. The first gas drive mechanism 10 includes, but is not limited to, a compressor.
The control valve group comprises a first state, a second state and a third state. In the first state, the first branch 8 and the recovery branch are respectively conducted. In the second state, the adsorption and desorption branch and the recovery branch are respectively conducted. In the third state, the first branch 8, the second branch 9 and the recovery branch are respectively conducted, and the gas provided by the gas distribution assembly 1 sequentially passes through the second branch 9, the adsorption and desorption branch, the first branch 8 and the recovery branch. For example, the control valve block may include several on-off valves, such as needle valves, ball valves, or shut-off valves. The control valve group is switched among a first state, a second state and a third state by controlling the switch valve state of each switch valve.
The utility model provides an embodiment gaseous desorption capability test device of inhaling, when testing, at first, switch over the valve unit to first state, the gas mixture that distribution subassembly 1 provided this moment enters into second pipeline 7 through first branch road 8, then partly enters into detection device, detects by detection device, and another part is through retrieving branch road purification back, gets into distribution subassembly 1 and recycles.
When the detection device detects that the conditions such as concentration and humidity of the mixed gas provided by the gas distribution assembly 1 meet the experimental requirements, the control valve group is switched to the second state, at the moment, the mixed gas provided by the gas distribution assembly 1 enters the second pipeline 7 after being adsorbed by the first adsorption device 4 through the adsorption and desorption branch, then one part of the mixed gas enters the detection device and is detected by the detection device, and the other part of the mixed gas enters the gas distribution assembly 1 for reutilization after being purified by the recovery branch. In this process, the first adsorption device 4 adsorbs the impurity gas in the mixed gas, and therefore, data relating to the adsorption performance of the first adsorption device 4 can be acquired by the detection device.
After obtaining the relevant data of adsorption performance, switch over the valve unit to the third state, this moment distribution subassembly 1 provides the purified gas, the purified gas enters into the second end of inhaling the desorption branch road through second branch road 9, carry out the desorption to first absorption device 4 through inhaling the desorption branch road, then enter into first branch road 8, enter into second pipeline 7 through first branch road 8 in, then partly enters into detection device, detect by detection device, another part is through retrieving the branch road purification back, get into distribution subassembly 1 and recycle. In this process, the purified gas passes through the first adsorption device 4 to desorb the first adsorption device 4, and therefore, data on the desorption performance of the first adsorption device 4 can be acquired by the detection device.
According to the configuration, the utility model provides an inhale desorption capability test device can accomplish the adsorption performance and the test of desorption capability to adsorption material in first adsorption equipment 4 to inhale desorption capability test device's simple structure, convenient to use. Meanwhile, the recovery branch can purify and recover gas in the test process, so that resource waste can be reduced, and the test cost is reduced.
Referring to fig. 1, in some embodiments provided by the present invention, the control valve set includes a first switch valve 24, a second switch valve 25, a third switch valve 26, a fourth switch valve 27, a fifth switch valve 28 and a sixth switch valve 29.
Wherein, the first switch valve 24 and the second switch valve 25 are arranged between the adsorption and desorption branch and the gas discharge port 2. The third switching valve 26 is disposed on the first branch 8, and the first end of the first branch 8 is connected between the first switching valve 24 and the second switching valve 25. The fourth switching valve 27 is provided on the second branch passage 9, and the connection position of the first end of the second branch passage 9 with the first pipe passage 5 is located upstream of the connection position of the first branch passage 8 with the first pipe passage 5 in the direction from the gas discharge port 2 to the first end of the adsorption and desorption branch passage. The fifth switch valve 28 is disposed between the adsorption and desorption branch and the detection device, and in a direction from the second end of the adsorption and desorption branch to the detection device, a connection position of the first branch 8 and the second pipeline 7 is located downstream of the fifth switch valve 28, and a connection position of the second branch 9 and the second pipeline 7 is located upstream of the fifth switch valve 28. The sixth switching valve 29 is disposed at the inlet end of the recovery branch, and the connection position of the recovery branch and the second pipeline 7 is located downstream of the connection position of the first branch 8 and the second pipeline 7.
In some embodiments provided by the present invention, the detection device may include a humidity meter 22 and a gas chromatograph 23 arranged in parallel. The moisture meter 22 may be used to detect a moisture value of the gas and the gas chromatograph 23 may be used to detect a concentration value of the gas.
The utility model provides an in some embodiments, inhale desorption capability test device still includes the gaseous actuating mechanism 19 of second, and the air inlet of the gaseous actuating mechanism 19 of second is connected with second pipeline 7. Through setting up second gas actuating mechanism 19, can be after desorption performance test is accomplished, carry out the evacuation to first adsorption equipment 4 to arrange the impurity in first adsorption equipment 4 clean, so that put into service once more.
Further, the second gas driving mechanism 19 includes, but is not limited to, a vacuum pump.
Optionally, the control valve group further includes a seventh switching valve 30, an eighth switching valve 31, and a ninth switching valve 32.
The seventh switching valve 30 is disposed between the second gas driving mechanism 19 and the second pipeline 7, the eighth switching valve 31 is disposed between the gas chromatograph 23 and the second pipeline 7, and the ninth switching valve 32 is disposed between the humidity meter 22 and the second pipeline 7.
Specifically, when the valve group is in the first state, the first on-off valve 24, the third on-off valve 26, the sixth on-off valve 29, the eighth on-off valve 31, and the ninth on-off valve 32 are opened, and the second on-off valve 25, the fourth on-off valve 27, the fifth on-off valve 28, and the seventh on-off valve 30 are closed.
When the control valve group is in the second state, the first switching valve 24, the second switching valve 25, the fifth switching valve 28, the sixth switching valve 29, the eighth switching valve 31, and the ninth switching valve 32 are opened, and the third switching valve 26, the fourth switching valve 27, and the seventh switching valve 30 are closed.
When the control valve group is in the third state, the fourth switching valve 27, the second switching valve 25, the third switching valve 26, the sixth switching valve 29, the eighth switching valve 31, and the ninth switching valve 32 are opened, and the first switching valve 24, the fifth switching valve 28, and the seventh switching valve 30 are closed.
After the desorption is completed, the fifth and seventh switching valves 28 and 30 may be opened, and the remaining switching valves may be closed, so as to evacuate the first adsorption device 4 from the second end by using the second gas driving mechanism 19. Alternatively, the second, third, and seventh on-off valves 25, 26, and 30 may be opened, and the remaining on-off valves may be closed, and the second gas driving mechanism 19 may be used to evacuate the first suction device 4 from the first end.
In some embodiments provided herein, the gas distribution assembly 1 includes a first container 13, a second container 14, a regulating valve 15, and a flow regulating device 16.
The first container 13 and the second container 14 are used to store different gases, and each of the first container 13 and the second container 14 may be a pressure container, such as a cylinder. For example, the first container 13 may be used to store nitrogen or helium. The second container 14 may be used to store impure gas. Alternatively, the number of the second container 14 may be provided in plural for storing different types of impurity gases. The gas inlet and outlet of the first container 13 and the gas inlet and outlet of the second container 14 are connected to the gas discharge port 2.
A regulating valve 15 and a flow rate regulating device 16 are provided between the first container 13 and the gas discharge port 2 and between the second container 14 and the gas discharge port 2.
The regulating valve 15 may be used to connect or disconnect the first container 13 or the second container 14 with the gas discharge port 2, and the regulating valve 15 may be a needle valve, a ball valve, or a stop valve.
The flow regulating device 16 is used for regulating the flow of each gas, and thus can be used for regulating the proportion of each gas in the mixture. Alternatively, the flow regulating device 16 may be a mass flow controller. By the arrangement, the proportions of various components in the mixed gas can be accurately adjusted to meet the test requirements.
The gas inlet 3 is connected to a gas inlet and outlet of the first container 13. The gas purified by the recovery branch can be directly discharged from the gas discharge port 2 again through the regulating valve 15 and the flow control device for recycling. Or in the final stage of the test, the gas purified by the recovery branch enters the first container 13 for storage, so that the gas is recycled, and the waste is reduced.
The utility model provides an in some embodiments, inhale desorption capability test device and still include auto-change over device. The number of the first containers 13 is two.
The two first containers 13 are connected to the gas discharge port 2 through a switching device that controls one of the two first containers 13 to be connected to the gas discharge port 2.
With this arrangement, when the pressure in one of the first containers 13 is insufficient, the other first container 13 can be supplied with gas by the switching means, maintaining the stability of the gas pressure.
Alternatively, the switching means may be a three-way valve or a reversing valve.
Further, the switching device may be a three-way solenoid valve or a solenoid directional valve. The pressure value of the gas in the first container 13 is detected by a pressure detection device, such as a pressure sensor, and the pressure value is transmitted to the controller, when the controller detects that the pressure value is smaller than a threshold value, the controller can control the electromagnetic three-way valve or the electromagnetic directional valve to switch the state, so that the other first container 13 with sufficient pressure supplies gas.
In some embodiments provided by the utility model, inhale desorption capability test device and still include temperature regulation subassembly 17.
The temperature adjusting assembly 17 is disposed outside the first suction device 4 and is capable of adjusting the temperature of the first suction device 4.
By providing the temperature adjustment module 17 to adjust the temperature of the first adsorption device 4, the influence of the temperature on the adsorption/desorption performance of the adsorbent can be studied.
For example, when performing the adsorption test, the first adsorption device 4 may be heated or cooled to the test set temperature by the temperature adjustment assembly 17, and then the adsorption test may be performed.
In the desorption test, the first adsorption device 4 may be heated to the test set temperature, and then the desorption test may be performed. The desorption effect on the first adsorption device 4 is improved by heating.
Optionally, the temperature regulating assembly 17 comprises at least one of a tube furnace, a water chiller, and a liquid nitrogen storage tank.
The utility model provides an in some embodiments, inhale desorption capability test device and still include tail gas processing apparatus 18, tail gas processing apparatus 18's air inlet is connected with detection device's gas vent.
Specifically, the exhaust ends of the moisture meter 22 and the gas chromatograph 23 are connected to the exhaust gas treatment device 18. The exhaust gas treatment device 18 includes, but is not limited to, a ventilator.
Further, the exhaust port of the second gas driving mechanism 19 may be connected to an exhaust gas treatment device so that the gas extracted from the first adsorption device 4 is treated by the exhaust gas treatment device.
In some embodiments provided by the utility model, inhale desorption capability test device and still include gas mixing device 20.
The first container 13 and the second container 14 are each connected to the gas discharge port 2 via a gas mixing device 20.
The degree of uniformity of the mixed gas can be improved by providing the gas mixing device 20.
Optionally, the gas mixing device 20 includes at least two mixing columns connected in sequence, and during the adsorption test, the mixed gas is mixed in each mixing column in sequence, so as to improve the uniformity of the finally output mixed gas. The mixing column may be a hollow structure.
In some embodiments provided by the present invention, the adsorption and desorption performance testing apparatus further includes a second adsorption device 12.
The second adsorption device 12 is disposed on the recovery branch. Through setting up second adsorption equipment 12 can adsorb the interior impure gas of gas in the recovery branch road to improve the purification effect to retrieving gas.
In some embodiments provided herein, the first adsorption device 4 and the second adsorption device 12 may each include an adsorption column. For example, the adsorbent column may include a housing and an adsorbent material packed within the housing. The adsorbent material can be replaced by opening the housing. The two ends of the shell are respectively provided with an opening communicated with the inside of the shell. One of the openings is for intake air and the other opening is for exhaust air. Adsorbent materials include, but are not limited to, molecular sieves and activated carbon.
The utility model provides an in some embodiments, inhale desorption capability test device and still include flow detection device 21.
The first container 13 and the second container 14 are each connected to the gas discharge port 2 through a flow rate detecting device 21.
The flow rate value of the output gas can be detected by the flow meter.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The utility model provides an inhale desorption capability test device which characterized in that includes:
the gas distribution assembly can provide gas and comprises a gas discharge port and a gas inlet port;
a detection device for detecting a gas;
the gas discharge port is connected with the gas discharge port through a first pipeline, and the gas discharge port is connected with the gas discharge port through a second pipeline;
the first ends of the first branch and the second branch are connected with the first pipeline, and the second ends of the first branch and the second branch are connected with the second pipeline;
the gas inlet end of the recovery branch is connected with the second pipeline, and the gas outlet end of the recovery branch is connected with the gas inlet;
the control valve group comprises a first state, a second state and a third state, wherein in the first state, the first branch and the recovery branch are respectively conducted, in the second state, the adsorption and desorption branch and the recovery branch are respectively conducted, in the third state, the first branch, the second branch and the recovery branch are respectively conducted, and gas provided by the gas distribution assembly sequentially passes through the second branch, the adsorption and desorption branch, the first branch and the recovery branch.
2. The adsorption-desorption performance testing device according to claim 1, further comprising a second adsorption device;
the second adsorption device is arranged on the recovery branch.
3. The adsorption and desorption performance testing device according to claim 1, wherein the air distribution assembly comprises a first container, a second container, a regulating valve and a flow regulating device;
the first container and the second container are used for storing different gases, and a gas inlet and a gas outlet of the first container and a gas inlet and a gas outlet of the second container are both connected with the gas discharge port;
the regulating valve and the flow regulating device are arranged between the first container and the gas discharge port and between the second container and the gas discharge port;
the gas inlet is connected with a gas inlet and a gas outlet of the first container.
4. The adsorption and desorption performance testing device according to claim 3, further comprising a switching device, wherein the number of the first containers is two;
the two first containers are connected to the gas discharge port through the switching device, and the switching device controls one of the two first containers to be connected to the gas discharge port.
5. The adsorption and desorption performance testing device according to claim 1, further comprising a temperature adjusting assembly;
the temperature adjusting component is arranged outside the first adsorption device and can adjust the temperature of the first adsorption device.
6. The device for testing adsorption and desorption performances according to claim 1, further comprising a tail gas treatment device, wherein an air inlet of the tail gas treatment device is connected with an air outlet of the detection device.
7. The adsorption and desorption performance testing device according to claim 1, further comprising a second gas driving mechanism, wherein a gas inlet of the second gas driving mechanism is connected with the second pipeline.
8. The adsorption and desorption performance testing device according to claim 3, further comprising a gas mixing device;
the first container and the second container are both connected with the gas discharge port through the gas mixing device.
9. The adsorption and desorption performance testing device according to claim 3, further comprising a flow rate detecting device;
the first container and the second container are both connected with the gas discharge port through the flow detection device.
10. The adsorption and desorption performance testing apparatus according to claim 1, wherein the detecting apparatus comprises a moisture meter and a gas chromatograph arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123127386.7U CN217304776U (en) | 2021-12-13 | 2021-12-13 | Adsorption and desorption performance testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123127386.7U CN217304776U (en) | 2021-12-13 | 2021-12-13 | Adsorption and desorption performance testing device |
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| CN217304776U true CN217304776U (en) | 2022-08-26 |
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