CN211477946U - Ammonia adsorption performance testing device - Google Patents
Ammonia adsorption performance testing device Download PDFInfo
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- CN211477946U CN211477946U CN201921898576.9U CN201921898576U CN211477946U CN 211477946 U CN211477946 U CN 211477946U CN 201921898576 U CN201921898576 U CN 201921898576U CN 211477946 U CN211477946 U CN 211477946U
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Abstract
The application is suitable for the technical field of ammonia adsorption detection, and provides an ammonia adsorption performance testing device, which comprises an adsorption cavity, a first ammonia concentration detection module, a second ammonia concentration detection module and a flow detection module, wherein the adsorption cavity comprises a cavity for placing an adsorbate to be tested, the first ammonia concentration detection module is used for detecting the concentration of ammonia input into the cavity, the second ammonia concentration detection module is used for detecting the concentration of ammonia output from the cavity, the flow detection module is used for detecting the ammonia input into the cavity or the flow of the ammonia output from the cavity, the ammonia adsorption amount of the adsorbate to be tested is calculated according to the concentration of the ammonia input into the cavity, the concentration of the ammonia output from the cavity, the adsorption time and the ammonia flow, compared with the ammonia adsorption amount of the adsorbate to be tested which is measured by carrying out chemical reaction with a chemical solution, the whole testing process is simpler, moreover, the testing precision is higher.
Description
Technical Field
The application belongs to the technical field of ammonia adsorption detection, especially, relates to an ammonia adsorption performance testing arrangement.
Background
Ammonia gas is an important chemical raw material and is widely applied in production and life. Ammonia is a harmful gas harmful to human health, and at present, there are many ammonia treatment methods, one of which is an adsorption method, in which ammonia is adsorbed by using an adsorption material (such as carbon cloth, activated carbon, molecular sieves, etc.). The ammonia adsorption performance of the adsorbent determines the adsorption amount of ammonia, and therefore, the ammonia adsorption performance of the adsorbent needs to be tested. The test method of the ammonia adsorption performance of the existing adsorption material is as follows: after the ammonia gas is adsorbed by the adsorbing material, the adsorbing material is placed into the corresponding chemical solution, the ammonia gas in the adsorbing material and the chemical solution generate chemical reaction, and the ammonia gas adsorption amount is detected according to the chemical reaction. Although this ammonia adsorption performance test method can detect the amount of ammonia adsorption, the test accuracy is low. The whole testing process is complicated because chemical solution is needed for chemical reaction. In addition, in the process of putting the adsorbing material into the chemical solution, ammonia gas and other related gases in the outside can be adsorbed by the adsorbing material, and the test result can be influenced when the adsorbing material reacts with the chemical solution, so that the test result has a large error. Therefore, the accuracy of the test result of the existing ammonia adsorption performance test mode is poor.
SUMMERY OF THE UTILITY MODEL
In view of this, this application embodiment provides an ammonia adsorption performance testing arrangement to solve the problem that the accuracy of the test result of current ammonia adsorption performance testing mode is relatively poor.
The application embodiment provides an ammonia adsorption performance testing arrangement, includes:
the adsorption cavity comprises a cavity for placing an adsorbate to be detected;
the first ammonia concentration detection module is used for detecting the concentration of ammonia input into the chamber;
the second ammonia concentration detection module is used for detecting the concentration of the ammonia output from the chamber; and
the flow detection module is used for detecting the flow of the ammonia gas input into the chamber or the flow of the ammonia gas output from the chamber;
the first ammonia concentration detection module, the second ammonia concentration detection module and the flow detection module are connected with the adsorption cavity.
Optionally, the ammonia adsorption performance testing device further comprises a control module, and signal output ends of the first ammonia concentration detection module, the second ammonia concentration detection module and the flow detection module are connected with the control module.
Optionally, the ammonia adsorption performance testing device further comprises a touch screen, and the signal interaction end of the control module is connected with the touch screen.
Optionally, the ammonia adsorption performance testing device further includes a flow regulating module for regulating the flow of the ammonia gas input into the chamber or the flow of the ammonia gas output from the chamber, and a signal output end of the control module is connected to the flow regulating module.
Optionally, the adsorption cavity includes an ammonia input port, the ammonia input port is connected with an ammonia input pipeline, the ammonia input pipeline is provided with a first electromagnetic valve, and the signal output end of the control module is connected with the first electromagnetic valve.
Optionally, the flow detection module is disposed in the ammonia gas input pipeline.
Optionally, the adsorption cavity comprises an ammonia gas outlet, the ammonia gas outlet is connected with an ammonia gas output pipeline, and the ammonia gas output pipeline is provided with a one-way valve.
Optionally, the ammonia adsorption performance testing device further comprises an ammonia gas source for outputting ammonia gas, and an ammonia gas output port of the ammonia gas source is connected with the ammonia gas input pipeline.
Optionally, the ammonia adsorption performance testing device further comprises a second electromagnetic valve, one end of the second electromagnetic valve is connected with the ammonia input port, the other end of the second electromagnetic valve is connected with the ammonia output port, and the signal output end of the control module is connected with the second electromagnetic valve.
Optionally, the ammonia adsorption performance testing device further comprises an ammonia absorption module, and the ammonia output pipeline is connected with the ammonia absorption module.
Compared with the prior art, the embodiment of the application has the advantages that: the method comprises the steps that an adsorbate to be detected is placed in a cavity of an adsorption cavity, ammonia gas with a certain concentration is input into the cavity, the adsorbate to be detected can absorb the ammonia gas, and the ammonia gas adsorption quantity of the adsorbate to be detected is calculated according to the concentration of the ammonia gas input into the cavity, the concentration of the ammonia gas output from the cavity after the adsorbate to be detected absorbs the ammonia gas, the adsorption time of the adsorbate to be detected for absorbing the ammonia gas, and the flow of the ammonia gas input into the cavity or the ammonia gas output from the cavity. This ammonia adsorption performance testing arrangement utilizes the ammonia adsorption capacity of the mode of mathematical operation to measure the adsorbate that awaits measuring according to several relevant data information, compares in the ammonia adsorption capacity through carrying out the chemical reaction with chemical solution and measure the adsorbate that awaits measuring, and the measuring accuracy is higher, and whole test procedure is fairly simple. In addition, in the whole test process, ammonia gas and other related gases in the outside cannot contact the adsorbate to be tested, and cannot be adsorbed by the adsorbate to be tested, so that any influence on the test result is avoided, and the test result cannot have larger errors. Therefore, the ammonia adsorption performance testing device tests the ammonia adsorption amount of the adsorbate to be tested by using a mathematical operation mode, and the testing precision is higher.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a schematic view of a first structure of an ammonia gas adsorption performance testing device provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a second ammonia gas adsorption performance testing device provided in an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the present application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
In order to explain the technical means described in the present application, the following description will be given by way of specific embodiments.
Referring to fig. 1, a schematic structural diagram of an ammonia gas adsorption performance testing apparatus provided in an embodiment of the present application is shown. For convenience of explanation, only portions related to the embodiments of the present application are shown.
The ammonia adsorption performance testing device is used for testing the ammonia adsorption performance of an adsorbate to be tested, wherein the adsorbate to be tested can be an adsorption material, such as carbon cloth, activated carbon and the like; it may also be an adsorbent product, such as an activated carbon packet made of activated carbon.
As shown in fig. 1, the ammonia adsorption performance testing device includes an adsorption cavity 101, a first ammonia concentration detection module 102, a second ammonia concentration detection module 103, and a flow detection module 104, and the positional relationships of these four components are as follows: the first ammonia concentration detection module 102, the second ammonia concentration detection module 103 and the flow detection module 104 are connected with the adsorption cavity 101.
The adsorption cavity 101 comprises a cavity, when the ammonia adsorption performance of the adsorbate to be tested is tested, the adsorbate to be tested is placed in the cavity, and the shape of the cavity is determined by actual needs. The adsorption cavity 101 comprises a cavity, an ammonia gas input port and an ammonia gas output port, ammonia gas enters the cavity through the ammonia gas input port, and ammonia gas in the cavity is output through the ammonia gas output port. Further, to facilitate measurement, an ammonia gas input pipe 105 is connected to the ammonia gas input port, and an ammonia gas output pipe 106 is connected to the ammonia gas output port.
The first ammonia concentration detection module 102 is used for detecting the concentration of ammonia input into the chamber; the second ammonia concentration detection module 103 is configured to detect a concentration of the ammonia gas output from the chamber, that is, a concentration of the ammonia gas after being adsorbed by the adsorbate to be detected. The first ammonia concentration detection module 102 and the second ammonia concentration detection module 103 may be conventional ammonia concentration detectors. The first ammonia concentration detection module 102 may be disposed at the ammonia gas input port, or may be disposed on the ammonia gas input pipeline 105; the second ammonia concentration detection module 103 may be disposed at the ammonia gas output port, or may be disposed on the ammonia gas output pipeline 106.
The flow detection module 104 is used for detecting the flow of the ammonia gas input into the chamber or detecting the flow of the ammonia gas output from the chamber. The flow detection module 104 may be a conventional flow meter. In this embodiment, the flow detection module 104 detects the flow of the ammonia gas input into the chamber, and may be disposed at the ammonia gas input port, or may be disposed on the ammonia gas input pipeline 105, as shown in fig. 1, the flow detection module 104 is disposed on the ammonia gas input pipeline 105.
The first ammonia concentration detection module 102 can detect the ammonia concentration input into the chamber, the second ammonia concentration detection module 103 can detect the ammonia concentration output from the chamber, and the flow detection module 104 can detect the ammonia flow input into the chamber. In addition, the adsorption time of the adsorbate to be tested, i.e. the time interval between the start of the adsorption test and the end of the adsorption test, can be obtained by a timer or other time information detection device (e.g. a stopwatch). The timer or other time information detecting device may be an external device, not part of the ammonia gas adsorption performance testing apparatus.
Then, the ammonia adsorption amount of the adsorbate to be detected is calculated according to the ammonia concentration input into the chamber (i.e., the ammonia concentration detected by the first ammonia concentration detection module 102), the ammonia concentration output from the chamber (i.e., the ammonia concentration detected by the second ammonia concentration detection module 103), the adsorption time, and the ammonia flow input into the chamber (i.e., the ammonia flow detected by the flow detection module 104). The ammonia adsorption performance testing device can be internally provided with a control module (namely a data processing module, such as a data processor like a single chip microcomputer) and used for calculating the ammonia adsorption amount of the adsorbate to be tested according to the parameters, of course, the ammonia adsorption performance testing device can also not comprise the control module, and external data processing equipment, such as a computer, is used for calculating the ammonia adsorption amount of the adsorbate to be tested, or the ammonia adsorption amount of the adsorbate to be tested is artificially calculated after the parameters are obtained.
The calculation process of the ammonia adsorption amount belongs to the conventional technology, and a specific calculation formula is given as follows:
wherein q is the ammonia adsorption amount of the adsorbate to be detected, C0Concentration of ammonia gas fed into the chamber, CtThe concentration of the ammonia gas output from the chamber at time t, and Q the flow rate of the ammonia gas input to the chamber.
It should be noted that the embodiment of the present application protects the hardware structure of the ammonia gas adsorption performance testing apparatus, and does not lie in the calculation process of the ammonia gas adsorption amount.
Referring to fig. 2, a schematic diagram of a second structure of the ammonia gas adsorption performance testing apparatus provided in the embodiment of the present application is shown. For convenience of explanation, only portions related to the embodiments of the present application are shown.
The ammonia adsorption performance testing device is used for testing the ammonia adsorption performance of an adsorbate to be tested, wherein the adsorbate to be tested can be an adsorption material, such as carbon cloth, activated carbon and the like, and can also be an adsorption product, such as an activated carbon bag formed by activated carbon. When ammonia adsorption performance test is carried out to the adsorbate that awaits measuring, need handle the adsorbate that awaits measuring, for example: when the adsorbate to be detected is carbon cloth, the carbon cloth with a certain size needs to be cut, dried and weighed, and then placed into the adsorption cavity 201.
As shown in fig. 2, the ammonia gas adsorption performance testing apparatus includes an adsorption chamber 201, a first ammonia gas concentration detection module 202, a second ammonia gas concentration detection module 203, and a gas mass flow controller 204.
In this embodiment, the adsorption cavity 201 is specifically an adsorption bed, and includes a cavity, and when testing the ammonia adsorption performance of the adsorbate to be tested, the adsorbate to be tested is placed in the cavity. The adsorption cavity 201 comprises a cavity, an ammonia gas input port and an ammonia gas output port, ammonia gas enters the cavity through the ammonia gas input port, and ammonia gas in the cavity is output through the ammonia gas output port. Moreover, for the convenience of measurement, the ammonia gas input port is connected to an ammonia gas input pipe 205, and the ammonia gas output port is connected to an ammonia gas output pipe 206.
The first ammonia concentration detection module 202 is used for detecting the concentration of ammonia input into the chamber; the second ammonia concentration detection module 203 is configured to detect the concentration of the ammonia gas output from the chamber, that is, the ammonia gas concentration after being adsorbed by the adsorbate to be detected. The first ammonia concentration detection module 202 and the second ammonia concentration detection module 203 may be conventional ammonia concentration detectors. The first ammonia concentration detection module 202 is arranged on the ammonia input pipeline 205; the second ammonia concentration detection module 203 is disposed on the ammonia gas output pipe 206. In this embodiment, the first ammonia concentration detection module 202 and the second ammonia concentration detection module 203 have a range of 0-100 ppm and an accuracy of not less than 3%.
The gas mass flow controller 204 has two functions, namely a flow detection function and a flow adjustment function, that is, the gas mass flow controller 204 can detect the flow of the ammonia gas input into the chamber and can adjust the flow of the ammonia gas input into the chamber according to actual needs. Gas mass flow controller 204 then essentially comprises a flow detection module and a flow adjustment module. In this embodiment, the flow detection module and the flow adjustment module are integrated and are implemented by the gas mass flow controller 204, and of course, as other implementation manners, the two modules may also be two independent devices, so that the flow adjustment module may adjust the flow of the ammonia gas input into the chamber and also adjust the flow of the ammonia gas output from the chamber. The principle of flow regulation is as follows: the flow is adjusted by adjusting the opening of an internal electromagnetic valve. As shown in fig. 2, the gas mass flow controller 204 is provided on the ammonia gas input pipe 205. When the flow detection is carried out, the range of the gas mass flow controller 204 is 0-1 NL/min, and the precision is not lower than 1% F.S. In addition, the gas mass flow controller 204 may also be provided with a display screen for displaying data such as flow rate. Since the gas mass flow controller 204 is a conventional device, the description of the present embodiment is omitted.
In this embodiment, the ammonia gas adsorption performance testing device further includes a control module (not shown in fig. 2), and the control module may be a control chip such as a single chip, or an embedded acquisition control circuit unit, implementing data processing and control functions, or may be a computer device. Moreover, the ammonia adsorption performance testing device also comprises a touch screen (not shown in fig. 2), the touch screen realizes the display function of data, and the displayed data can be as follows: ammonia adsorption amount of the adsorbate to be detected, ammonia concentration values before and after adsorption, ammonia flow, ammonia concentration time-varying curve charts and the like. Moreover, the touch screen can also output control instructions to the gas mass flow controller 204 to adjust the flow of ammonia gas according to actual needs, and control the opening/closing of the solenoid valves in fig. 2.
The signal output ends of the first ammonia concentration detection module 202 and the second ammonia concentration detection module 203 are connected with a control module, the control module is connected with a gas mass flow controller 204, and the signal interaction end of the control module is connected with a touch screen.
In this embodiment, the ammonia gas input pipe 205 is provided with a first electromagnetic valve 207, the signal output end of the control module is connected to the first electromagnetic valve 207, and the ammonia gas output pipe 206 is provided with a check valve 208, specifically, as shown in fig. 2, the first electromagnetic valve 207 is arranged between the ammonia gas input port of the adsorption cavity 201 and the first ammonia gas concentration detection module 202, and the check valve 208 is arranged between the ammonia gas output port of the adsorption cavity 201 and the second ammonia gas concentration detection module 203.
In this embodiment, the ammonia adsorption performance testing arrangement still includes second solenoid valve 209, and second solenoid valve 209 is used for connecting the ammonia input port and the ammonia delivery outlet of absorption chamber 201, can direct connection ammonia input port and ammonia delivery outlet, also can indirectly connect ammonia input port and ammonia delivery outlet, and figure 2 gives an indirect connection mode: one end of the second electromagnetic valve 209 is connected between the first electromagnetic valve 207 and the first ammonia concentration detection module 202, and the other end of the second electromagnetic valve 209 is connected between the check valve 208 and the second ammonia concentration detection module 203. After the adsorption test is completed, the first solenoid valve 207 can be controlled to be closed, the second solenoid valve 209 is controlled to be opened, and the input ammonia gas does not pass through the adsorption cavity 201 but is directly output through the second solenoid valve 209, so that the ammonia gas in the pipeline can be rapidly removed.
In this embodiment, the ammonia gas adsorption performance testing apparatus further includes an ammonia gas source 210, and the ammonia gas standard gas with a certain concentration is customized according to the user requirement, and of course, the ammonia gas source 210 may also be an external device, which is not a part of the ammonia gas adsorption performance testing apparatus. An ammonia gas output port of the ammonia gas source 210 is connected with an ammonia gas input pipeline of the adsorption cavity 201. In this embodiment, the gas mass flow controller 204 is disposed between the ammonia gas output port of the ammonia gas source 210 and the first ammonia gas concentration detection module 202. Further, as shown in fig. 2, a pressure reducer 211, a third electromagnetic valve 212, and a filter 213 are provided in this order between the ammonia gas output port of the ammonia gas source 210 and the gas mass flow controller 204. Wherein the pressure reduction pressure of the pressure reducer 211 is 0-1 MPa, and the precision is not lower than 1%; the filter 213 can ensure that the supply air is clean.
In this embodiment, the ammonia adsorption performance testing device further includes an ammonia absorption module 214, and the ammonia output pipeline 206 is connected to the ammonia absorption module 214, and is used for absorbing ammonia output by the ammonia output port of the adsorption cavity 201. Of course, the ammonia absorption module 214 may also be an external device, not part of the ammonia adsorption performance test apparatus. The ammonia absorption module 214 is specifically an absorption bottle, and liquid for dissolving ammonia or liquid for generating chemical reaction with ammonia is arranged in the absorption bottle. The absorption bottle is made of glass material, has a capacity of 1L, and adopts a GL45 mouth. A check valve 215 is provided between the ammonia gas output pipe 206 and the ammonia gas absorption module 214 to prevent the reverse flow of gas.
In addition, in order to realize the versatility of the ammonia gas adsorption performance testing device, the ammonia gas adsorption performance testing device further comprises another ammonia gas output pipeline 217, one end of the ammonia gas output pipeline 217 is connected between the first ammonia gas concentration detecting module 202 and the gas mass flow controller 204, the other end of the ammonia gas output pipeline 217 is an ammonia gas output end, and the ammonia gas output pipeline 217 is provided with a fourth electromagnetic valve 216.
The signal output ends of the control module are connected with a first solenoid valve 207, a second solenoid valve 209, a third solenoid valve 212 and a fourth solenoid valve 216. In the present embodiment, the first solenoid valve 207, the second solenoid valve 209, the third solenoid valve 212, and the fourth solenoid valve 216 are each specifically electromagnetic cut-off valves.
The ammonia gas adsorption performance testing device can be powered by an external power supply AC220V or an energy storage device.
When testing the ammonia adsorption performance of the adsorbate to be tested, the adsorbate to be tested is firstly placed into the adsorption cavity 201, then the ammonia source 210 is opened, and the first electromagnetic valve 207 and the third electromagnetic valve 212 are opened through the touch screen. The first ammonia concentration detection module 202 can detect the ammonia concentration input into the chamber, the second ammonia concentration detection module 203 can detect the ammonia concentration output from the chamber, and the gas mass flow controller 204 can obtain the ammonia flow input into the chamber. In addition, the adsorption time of the adsorbate to be tested, i.e. the time interval between the start of the adsorption test and the end of the adsorption test, can be obtained by a timer or other time information detection equipment.
In this embodiment, the software and operating system requirements in the control module are: adopting a current mainstream system and universal control software; data acquisition, control and the like adopt a digital mode; the software has expandability.
The control module receives data information output by the first ammonia concentration detection module 202, the second ammonia concentration detection module 203 and the gas mass flow controller 204.
The control module calculates the ammonia adsorption amount of the adsorbate to be detected according to the ammonia concentration input into the chamber, the ammonia concentration output from the chamber, the adsorption time and the ammonia flow input into the chamber. The calculation process of the ammonia adsorption amount belongs to the conventional technology, and a specific calculation formula is given as follows:
wherein q is the ammonia adsorption amount of the adsorbate to be detected, C0Concentration of ammonia gas fed into the chamber, CtThe concentration of the ammonia gas output from the chamber at time t, and Q the flow rate of the ammonia gas input to the chamber.
And after the control module calculates the ammonia adsorption amount of the adsorbate to be detected, displaying the ammonia adsorption amount through a touch screen. In addition, various collected data and the calculated ammonia adsorption amount can be stored in the storage unit, so that the data can be conveniently checked and exported, and the exported data format is csv or xls.
Of course, in order to ensure the testing precision, the ammonia adsorption performance testing device needs to be in a normal environment when testing, such as: ambient gas composition: normal atmospheric constituents; ambient pressure: normal pressure; ambient temperature: 0 to +40 ℃; relative humidity: 20% R.H. -70% R.H.
It should be noted that the embodiment of the present application protects the hardware structure of the ammonia gas adsorption performance testing apparatus, and does not lie in the calculation process of the ammonia gas adsorption amount.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. The utility model provides an ammonia adsorption performance testing arrangement which characterized in that includes:
the adsorption cavity comprises a cavity for placing an adsorbate to be detected;
the first ammonia concentration detection module is used for detecting the concentration of ammonia input into the chamber;
the second ammonia concentration detection module is used for detecting the concentration of the ammonia output from the chamber; and
the flow detection module is used for detecting the flow of the ammonia gas input into the chamber or the flow of the ammonia gas output from the chamber;
the first ammonia concentration detection module, the second ammonia concentration detection module and the flow detection module are connected with the adsorption cavity.
2. The ammonia gas adsorption performance testing device of claim 1, further comprising a control module, wherein the signal output ends of the first ammonia gas concentration detection module, the second ammonia gas concentration detection module and the flow detection module are connected with the control module.
3. The ammonia gas adsorption performance testing device of claim 2, further comprising a touch screen, wherein the signal interaction end of the control module is connected with the touch screen.
4. The ammonia gas adsorption performance testing device of claim 2, further comprising a flow regulating module for regulating the flow of ammonia gas input into the chamber or output from the chamber, wherein the signal output end of the control module is connected with the flow regulating module.
5. The ammonia gas adsorption performance testing device of claim 2, wherein the adsorption cavity comprises an ammonia gas input port, the ammonia gas input port is connected with an ammonia gas input pipeline, the ammonia gas input pipeline is provided with a first electromagnetic valve, and a signal output end of the control module is connected with the first electromagnetic valve.
6. The ammonia gas adsorption performance testing device of claim 5, wherein the flow detection module is arranged on the ammonia gas input pipeline.
7. The ammonia gas adsorption performance testing device of claim 5, wherein the adsorption cavity comprises an ammonia gas outlet, the ammonia gas outlet is connected with an ammonia gas output pipeline, and the ammonia gas output pipeline is provided with a one-way valve.
8. The ammonia gas adsorption performance testing device of claim 5, further comprising an ammonia gas source for outputting ammonia gas, wherein an ammonia gas output port of the ammonia gas source is connected with the ammonia gas input pipeline.
9. The ammonia gas adsorption performance testing device of claim 7, further comprising a second electromagnetic valve, wherein one end of the second electromagnetic valve is connected with the ammonia gas input port, the other end of the second electromagnetic valve is connected with the ammonia gas output port, and a signal output end of the control module is connected with the second electromagnetic valve.
10. The ammonia gas adsorption performance testing device of claim 7, further comprising an ammonia gas absorption module, wherein the ammonia gas output pipeline is connected with the ammonia gas absorption module.
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