CN217107521U - Air quantity measuring device of oxidation fan - Google Patents
Air quantity measuring device of oxidation fan Download PDFInfo
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- CN217107521U CN217107521U CN202220477711.8U CN202220477711U CN217107521U CN 217107521 U CN217107521 U CN 217107521U CN 202220477711 U CN202220477711 U CN 202220477711U CN 217107521 U CN217107521 U CN 217107521U
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Abstract
The utility model discloses an oxidation fan air quantity measuring device, relating to the technical field of a thermal power generation desulfurization absorption tower oxidation fan control system; the device comprises a pore plate flowmeter for measuring the air quantity of an oxidation fan, an electric actuator for controlling the opening degree of an inlet of the oxidation fan, a sampling pipeline, a comparator, a controller, an electromagnetic valve, a purging air source and a purging pipeline, wherein the pore plate flowmeter is arranged on the sampling pipeline; the normal measurement of the air quantity of the oxidation fan is realized through a pore plate flowmeter, an electric actuating mechanism, a sampling pipeline, a comparator, a controller, an electromagnetic valve, a purging air source, a purging pipeline and the like.
Description
Technical Field
The utility model relates to a thermal power desulfurization absorption tower oxidation fan control system technical field especially relates to an oxidation fan amount of wind measuring device.
Background
The application publication number is CN 111396347A, and the name is a fan anti-surge control system and a limit line flow calculation method thereof. The technology does not need extra investment for adopting and buying a fan surge monitoring system; the controller adopts a DCS distributed control system to realize automatic control; the device is suitable for the chemical enterprises to realize automatic control on the improvement of the original device, and the cost is extremely low; the limit line flow calculation method adopts a fan surge limit flow calculation formula and a fan surge experiment data fitting method, can quickly obtain the minimum flow and the warning flow of the fan according to the pressure at the outlet of the fan, can monitor the running condition of the fan at any time in actual production, and realizes the stable running of the fan.
The application publication number is CN 111521226A, and the name is a device and a method for measuring the flow of the flue gas at the inlet of a draught fan. The volume fraction of oxygen in dry flue gas, the volume fraction of carbon dioxide in dry flue gas, the volume fraction of water vapor in wet flue gas, the inlet flue gas temperature of a first low-temperature economizer, the water temperature of a water inlet pipeline of the low-temperature economizer and the like are collected through detection equipment, the controller calculates the inlet flue gas flow of the induced draft fan according to the collected data, slag is not needed to indirectly obtain the flue gas flow, the extraction of slag components is not needed to be quantitatively analyzed, and the measuring method is simple and consumes less time. Two gas treatment systems come out from the boiler, be first SCR device of being denitration, first air preheater, first dust remover, first low temperature economizer and first draught fan all the way, another way is second SCR device of being denitration, second air preheater, second dust remover, second low temperature economizer and second draught fan, two sets of systems can use simultaneously, also can the exclusive use, during the while use, one of them set of system certain device damages, another set of system still continues work, guarantee that the unit does not shut down, improve the treatment effeciency.
The analysis of the prior art, taken in conjunction with the above two prior applications and the research and development personnel of this company, is as follows:
the air quantity of the desulfurization oxidation fan is measured by adopting a pore plate differential pressure flowmeter, and when deviation occurs between air quantity measurement data and an air quantity set value, the oxidation fan controller can automatically adjust the opening of an inlet electric actuating mechanism to meet the actual air quantity. During operation, the situation that the sampling pipeline is blocked, the equipment cannot normally measure the air quantity and the oxidation fan abnormally stops operation due to the fact that dust is contained in the air and the field environment of the oxidation fan is severe is found.
Problems with the prior art and considerations:
how to solve the technical problem that the air quantity of the oxidation fan cannot be measured normally.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a oxidation fan amount of wind measuring device is provided, the technical problem of the unable normal measurement oxidation fan amount of wind is solved.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is: the utility model provides an oxidation fan amount of wind measuring device is including the orifice plate flowmeter that is used for measuring the oxidation fan amount of wind, the electric actuator who is used for controlling oxidation fan entry aperture and sample pipeline, the orifice plate flowmeter sets up on the sample pipeline, still includes comparator, controller, solenoid valve, sweep gas source and sweeps the pipeline, sweep the gas source and be connected with sample pipeline through sweeping the pipeline and switch on, the solenoid valve sets up on sweeping the pipeline, the orifice plate flowmeter is connected with the first input electricity of comparator, electric actuator is connected with the second input electricity of comparator, the output of comparator is connected with the input electricity of controller, the control end of controller is connected with the control end electricity of solenoid valve.
The further technical scheme is as follows: the orifice plate flowmeter, the sampling pipeline, the comparator, the controller, the electromagnetic valve, the purging gas source and the purging pipeline form a wind measuring purging unit, the sampling pipeline comprises a first sampling pipeline and a second sampling pipeline, the orifice plate flowmeter comprises a first orifice plate flowmeter and a second orifice plate flowmeter, the comparator comprises a first comparator and a second comparator, the electromagnetic valve comprises a first electromagnetic valve and a second electromagnetic valve, the purging gas source comprises a first purging gas source and a second purging gas source, the purging pipeline comprises a first purging pipeline and a second purging pipeline, the first sampling pipeline, the first orifice plate flowmeter, the first comparator, the controller, the first electromagnetic valve and the first purging gas source form a first wind measuring purging unit, the second sampling pipeline, the second orifice plate flowmeter, the second comparator, the controller, the second electromagnetic valve and the second purging gas source form a second wind measuring purging unit, the first wind measurement purging unit and the second wind measurement purging unit are identical in structure, the first orifice plate flowmeter is arranged on a first sampling pipeline, the first purging gas source is connected and communicated with the first sampling pipeline through the first purging pipeline, the first electromagnetic valve is arranged on the first purging pipeline, the first orifice plate flowmeter is electrically connected with a first input end of a first comparator, the electric actuator is electrically connected with a second input end of the first comparator, an output end of the first comparator is electrically connected with an input end of a controller, and a control end of the controller is electrically connected with a control end of the first electromagnetic valve; the second orifice plate flowmeter is arranged on a second sampling pipeline, the second purging gas source is connected and communicated with the second sampling pipeline through a second purging pipeline, the second electromagnetic valve is arranged on the second purging pipeline, the second orifice plate flowmeter is electrically connected with a first input end of a second comparator, the electric actuator is electrically connected with a second input end of the second comparator, an output end of the second comparator is electrically connected with an input end of the controller, and a control end of the controller is electrically connected with a control end of the second electromagnetic valve.
The further technical scheme is as follows: the electromagnetic valve is an electromagnetic stop valve.
The further technical scheme is as follows: the controller is a single chip microcomputer.
The further technical scheme is as follows: still include the alarm, the controller is connected with the alarm electricity.
The further technical scheme is as follows: the alarm is a buzzer, an indicator light or a voice player.
The further technical scheme is as follows: the controller is electrically connected with and communicates with the communication device, and the server is connected with and communicates with the communication device.
The further technical scheme is as follows: the communication device is a wired communication device, and the server is in wired connection and communication with the wired communication device.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the utility model provides an oxidation fan amount of wind measuring device is including the orifice plate flowmeter that is used for measuring the oxidation fan amount of wind, the electric actuator who is used for controlling oxidation fan entry aperture and sample pipeline, the orifice plate flowmeter sets up on the sample pipeline, still includes comparator, controller, solenoid valve, sweep gas source and sweeps the pipeline, sweep the gas source and be connected with sample pipeline through sweeping the pipeline and switch on, the solenoid valve sets up on sweeping the pipeline, the orifice plate flowmeter is connected with the first input electricity of comparator, electric actuator is connected with the second input electricity of comparator, the output of comparator is connected with the input electricity of controller, the control end of controller is connected with the control end electricity of solenoid valve. According to the technical scheme, normal measurement of the air quantity of the oxidation fan is achieved through the orifice plate flowmeter, the electric actuating mechanism, the sampling pipeline, the comparator, the controller, the electromagnetic valve, the purging air source, the purging pipeline and the like.
See detailed description of the preferred embodiments.
Drawings
Fig. 1 is a schematic block diagram of embodiment 1 of the present invention;
fig. 2 is a schematic block diagram of embodiment 2 of the present invention;
fig. 3 is a schematic block diagram of embodiment 3 of the present invention;
fig. 4 is a schematic block diagram of embodiment 4 of the present invention;
fig. 5 is a schematic diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and it will be apparent to those of ordinary skill in the art that the present application is not limited to the specific embodiments disclosed below.
Example 1:
as shown in fig. 1, the utility model discloses an oxidation fan amount of wind measuring device is including the orifice plate flowmeter that is used for measuring the oxidation fan amount of wind, the electric actuator who is used for controlling oxidation fan entry aperture and sample line and comparator, controller, solenoid valve, sweep the air supply and sweep the pipeline, the orifice plate flowmeter is installed on the sample line, sweep the air supply and switch on through sweeping the pipeline and being connected with sample line, the solenoid valve is installed on sweeping the pipeline, the orifice plate flowmeter is connected with the first input electricity of comparator, electric actuator is connected with the second input electricity of comparator, the output of comparator is connected with the input electricity of controller, the control end of controller and the control of solenoid valve are connected.
The electromagnetic valve is an electromagnetic stop valve.
The controller is a single chip microcomputer.
The purging control box is composed of the comparator and the controller, and the orifice plate flowmeter, the electric actuator, the comparator, the controller, the electromagnetic valve and the corresponding communication connection technology are not repeated in the prior art.
Example 1 description of the working procedure:
the orifice plate flowmeter informs the comparator of the air volume signal, the electric actuator informs the comparator of the opening signal, the comparator compares the air volume signal with the opening signal, when the two signals are matched correspondingly and consistently, the comparator has no output, when the two signals are not matched correspondingly and consistently, the comparator informs the controller, the controller informs the electromagnetic stop valve to be opened, and the air of the air purging source enters the sampling pipeline through the air purging pipeline to clean the sampling pipeline.
And after ten minutes, the controller controls the electromagnetic stop valve to close. The delay time can be realized by a delay circuit, and is not described in detail in the prior art.
Example 2:
example 2 differs from example 1 in that there are two anemometric purge units.
As shown in figure 2, the utility model discloses an air quantity measuring device of an oxidation fan, which comprises a pore plate flowmeter used for measuring the air quantity of the oxidation fan, an electric actuating mechanism used for controlling the opening degree of an inlet of the oxidation fan, a sampling pipeline, a comparator, a controller, a solenoid valve, a purging air source and a purging pipeline, the orifice plate flowmeter, the sampling pipeline, the comparator, the controller, the electromagnetic valve, the purging gas source and the purging pipeline form a wind-measuring purging unit, the sampling pipeline comprises a first sampling pipeline and a second sampling pipeline, the orifice plate flowmeter comprises a first orifice plate flowmeter and a second orifice plate flowmeter, the comparator comprises a first comparator and a second comparator, the solenoid valve comprises a first solenoid valve and a second solenoid valve, the purging gas source comprises a first purging gas source and a second purging gas source, and the purging pipeline comprises a first purging pipeline and a second purging pipeline.
The first sampling pipeline, the first orifice plate flowmeter, the first comparator, the controller, the first electromagnetic valve and the first purging gas source form a first anemometry purging unit, the second sampling pipeline, the second orifice plate flowmeter, the second comparator, the controller, the second electromagnetic valve and the second purging gas source form a second wind-measuring purging unit, the first wind measuring and purging unit and the second wind measuring and purging unit have the same structure, the first orifice plate flowmeter is fixedly arranged on the first sampling pipeline, the first purging gas source is connected and communicated with the first sampling pipeline through a first purging pipeline, the first electromagnetic valve is fixedly arranged on the first purging pipeline, the second orifice plate flowmeter is fixedly installed on a second sampling pipeline, the second purging gas source is connected and communicated with the second sampling pipeline through a second purging pipeline, and the second electromagnetic valve is fixedly installed on the second purging pipeline.
As shown in fig. 2, the first orifice flowmeter is electrically connected to a first input end of a first comparator, the electric actuator is electrically connected to a second input end of the first comparator, an output end of the first comparator is electrically connected to an input end of a controller, and a control end of the controller is electrically connected to a control end of a first electromagnetic valve; the second orifice plate flowmeter is electrically connected with a first input end of a second comparator, the electric actuator is electrically connected with a second input end of the second comparator, an output end of the second comparator is electrically connected with an input end of the controller, and a control end of the controller is electrically connected with a control end of a second electromagnetic valve.
The electromagnetic valve is an electromagnetic stop valve.
The controller is a single chip microcomputer.
The purging control box is composed of the comparator and the controller, and the orifice plate flowmeter, the electric actuator, the comparator, the controller, the electromagnetic valve and the corresponding communication connection technology are not repeated in the prior art.
Example 2 description of the working procedure:
the first hole plate flowmeter informs the first air volume signal to the first comparator, the electric actuator informs the opening signal to the first comparator, the first comparator compares the first air volume signal with the opening signal, when the two signals are matched correspondingly and consistently, the first comparator has no output, when the two signals are not matched correspondingly and consistently, the first comparator informs the controller, the controller informs the first electromagnetic stop valve to open, the air of the first purging air source enters the first sampling pipeline through the first purging pipeline, and the first sampling pipeline is cleaned.
And after ten minutes, the controller controls the first electromagnetic stop valve to close. The delay time can be realized by a delay circuit, and is not described in detail in the prior art.
The second orifice plate flowmeter informs the second air volume signal to the second comparator, the electric actuator informs the opening degree signal to the second comparator, the second comparator compares the second air volume signal with the opening degree signal, when the two signals are matched correspondingly and consistently, the second comparator has no output, when the two signals are not matched correspondingly and consistently, the second comparator informs the controller, the controller informs the second electromagnetic stop valve to open, the air of the second purging air source enters the second sampling pipeline through the second purging pipeline, and the second sampling pipeline is cleaned.
And after ten minutes, the controller controls the second electromagnetic stop valve to close. The delay time can be realized by a delay circuit, and is not described in detail in the prior art.
Example 3:
embodiment 3 differs from embodiment 1 in that it further comprises an alarm.
As shown in fig. 3, the utility model discloses an oxidation fan amount of wind measuring device is including the orifice plate flowmeter that is used for measuring the oxidation fan amount of wind, the electric actuator who is used for controlling oxidation fan entry aperture and sample pipeline and comparator, controller, solenoid valve, sweep the air supply, sweep pipeline and alarm, the orifice plate flowmeter is installed on the sample pipeline, sweep the air supply and be connected with sample pipeline through sweeping the pipeline and switch on, the solenoid valve is installed on sweeping the pipeline, the orifice plate flowmeter is connected with the first input electricity of comparator, electric actuator is connected with the second input electricity of comparator, the output of comparator is connected with the input electricity of controller, the control end of controller is connected with the control end of solenoid valve electricity, the controller is connected with the alarm electricity.
The electromagnetic valve is an electromagnetic stop valve.
The controller is a single chip microcomputer.
The alarm is a buzzer.
Wherein, the comparator and the controller constitute and sweep the control box, orifice flowmeter, electric actuator, comparator, controller, solenoid valve and bee calling organ itself and corresponding communication connection technique for prior art no longer describe herein.
Example 3 description of the working procedure:
the orifice plate flowmeter informs the comparator of the air volume signal, the electric actuator informs the comparator of the opening signal, the comparator compares the air volume signal with the opening signal, when the two signals are matched correspondingly and consistently, the comparator has no output, when the two signals are not matched correspondingly and consistently, the comparator informs the controller, the controller informs the electromagnetic stop valve to be opened, and the air of the air purging source enters the sampling pipeline through the air purging pipeline to clean the sampling pipeline.
The controller controls the electromagnetic stop valve to be closed after ten minutes, the orifice plate flowmeter obtains the air volume signal again and informs the comparator, the electric actuator informs the comparator of the opening signal, the comparator compares the air volume signal with the opening signal, when the two signals are correspondingly matched and consistent, the comparator has no output, when the two signals are not correspondingly matched and consistent, the comparator informs the controller, and the controller informs the buzzer to alarm so as to remind people of paying attention.
Example 4:
embodiment 4 differs from embodiment 3 in that it further includes a server and a communication device.
As shown in FIG. 4, the utility model discloses an air quantity measuring device of an oxidation fan, which comprises a pore plate flowmeter for measuring the air quantity of the oxidation fan, an electric actuating mechanism for controlling the opening degree of an inlet of the oxidation fan, a sampling pipeline, a comparator, a controller, a solenoid valve, a purging air source, a purging pipeline, an alarm, a server for management and a communication device, the orifice plate flowmeter is arranged on the sampling pipeline, the purging gas source is communicated with the sampling pipeline through a purging pipeline, the electromagnetic valve is arranged on the purging pipeline, the orifice plate flowmeter is electrically connected with the first input end of the comparator, the electric actuator is electrically connected with the second input end of the comparator, the output end of the comparator is electrically connected with the input end of the controller, the control end of the controller is electrically connected with the control end of the electromagnetic valve, and the controller is electrically connected with the alarm.
The communication device is a wired communication device, the controller is electrically connected with the communication device and communicates with the communication device, and the server is in wired connection with the wired communication device and communicates with the wired communication device.
The electromagnetic valve is an electromagnetic stop valve.
The controller is a single chip microcomputer.
The alarm is a buzzer.
The purging control box is composed of the comparator and the controller, and the orifice plate flowmeter, the electric actuator, the comparator, the controller, the electromagnetic valve, the buzzer, the server, the wired communication device and the corresponding communication connection technology are not repeated in the prior art.
Example 4 description of the working procedure:
the orifice plate flowmeter informs the comparator of the air volume signal, the electric actuator informs the comparator of the opening signal, the comparator compares the air volume signal with the opening signal, when the two signals are matched correspondingly and consistently, the comparator has no output, when the two signals are not matched correspondingly and consistently, the comparator informs the controller, the controller informs the electromagnetic stop valve to be opened, and the air of the air purging source enters the sampling pipeline through the air purging pipeline to clean the sampling pipeline.
Ten minutes after the controller control electromagnetism stop valve close, the orifice plate flowmeter obtains the amount of wind signal once more and tells the comparator, electric actuator tells the comparator with the aperture signal, the comparator compares amount of wind signal and aperture signal, match unanimous words when two signals are corresponding, the comparator does not have the output, match unanimous words when two signals are not corresponding, the controller is told to the comparator, the controller tells the server so that remind managers to know and send the people to the scene through wired communication device, the controller tells the buzzer warning so that remind personnel to notice.
Example 5:
example 5 differs from example 2 in that one source of purge gas is used.
The utility model discloses an oxidation fan amount of wind measuring device is including the orifice plate flowmeter that is used for measuring the oxidation fan amount of wind, the electric actuator who is used for controlling oxidation fan entry aperture and sample pipeline and comparator, controller, solenoid valve, sweep the air supply and sweep the pipeline, orifice plate flowmeter, sample pipeline, comparator, controller, solenoid valve, sweep the air supply and sweep the pipeline and form the survey wind and sweep the unit, the sample pipeline includes first sample pipeline and second sample pipeline, the orifice plate flowmeter includes first orifice plate flowmeter and second orifice plate flowmeter, the comparator includes first comparator and second comparator, the solenoid valve includes first solenoid valve and second solenoid valve, it sweeps the pipeline including first sweeping the pipeline and second sweeping the pipeline to sweep.
The first sampling pipeline, the first orifice plate flowmeter, the first comparator, the controller, the first electromagnetic valve and the purging gas source form a first wind-measuring purging unit, the second sampling pipeline, the second orifice plate flowmeter, the second comparator, the controller, the second electromagnetic valve and the purging gas source form a second wind-measuring purging unit, the first wind measuring and purging unit and the second wind measuring and purging unit have the same structure, the first orifice plate flowmeter is fixedly arranged on the first sampling pipeline, the purging gas source is communicated with the first sampling pipeline through a first purging pipeline, the first electromagnetic valve is fixedly arranged on the first purging pipeline, the second orifice plate flowmeter is fixedly installed on a second sampling pipeline, the purging gas source is connected and communicated with the second sampling pipeline through a second purging pipeline, and the second electromagnetic valve is fixedly installed on the second purging pipeline.
Compared with the above embodiment, the alarm device can also be an indicator light.
Compared with the above embodiment, the alarm can also be a voice player.
The conception of the application is as follows:
the blowing control box, the blowing pipeline and the valve are added on the basis of the original air quantity measurement, and the stability of the equipment is improved.
Technical contribution of the present application:
the invention mainly solves the problem that an automatic purging control system, a purging pipeline and a valve are added on the basis of the original orifice plate flowmeter and an electric actuating mechanism. When the aperture plate flowmeter is measured and the opening of the electric actuating mechanism deviates, the automatic purging control system automatically opens the purging valve and the purging pipeline, after purging is finished, if the measurement is recovered to normal operation, otherwise, the automatic purging control system triggers an alarm to remind maintenance personnel to find reasons.
Description of the technical solution:
as shown in fig. 5, signals of the orifice plate flowmeter and the electric actuator are transmitted to the automatic purging control system, the automatic purging control system receives the signals and then automatically compares the signals with an empirical operating curve, when the deviation occurs between the opening degree of the orifice plate flowmeter and the empirical operating curve, the automatic purging control system automatically judges that the flowmeter is blocked, then the automatic purging control system sends a command to open a purging valve and purge a sampling pipeline of the orifice plate flowmeter, and after purging is finished, if the deviation still exists between the opening degree of the orifice plate flowmeter and the opening degree of the electric actuator, the automatic purging control system triggers an alarm to prompt a maintainer to manually inspect equipment.
The purge control box is the purge control system.
After the application runs secretly for a period of time, the feedback of field technicians has the advantages that:
the oxidation fan air quantity measuring device can automatically judge the air quantity measurement blocking condition after an automatic purging control system is added, can automatically purge the oxidation fan air quantity measuring device, can trigger alarm to remind maintenance personnel to check and process in time if the automatic purging control system cannot be automatically solved, and greatly reduces the blocking condition of the air quantity measuring system.
At present, the technical scheme of the utility model is that a pilot test is carried out, namely a small-scale test of products before large-scale mass production; after the pilot test is finished, the investigation for the use of the user is carried out in a small range, and the investigation result shows that the satisfaction degree of the user is higher; the preparation of products for formal production for industrialization (including intellectual property risk early warning research) has been started.
Claims (8)
1. The utility model provides an oxidation fan amount of wind measuring device, is including the orifice plate flowmeter that is used for measuring the oxidation fan amount of wind, the electric actuator who is used for controlling oxidation fan entry aperture and sample pipeline, the orifice plate flowmeter sets up on the sample pipeline, its characterized in that: the sampling device is characterized by further comprising a comparator, a controller, an electromagnetic valve, a purging gas source and a purging pipeline, wherein the purging gas source is connected and communicated with the sampling pipeline through the purging pipeline, the electromagnetic valve is arranged on the purging pipeline, the orifice plate flowmeter is electrically connected with a first input end of the comparator, the electric actuating mechanism is electrically connected with a second input end of the comparator, an output end of the comparator is electrically connected with an input end of the controller, and a control end of the controller is electrically connected with a control end of the electromagnetic valve.
2. The air volume measuring device of the oxidation fan as claimed in claim 1, wherein: the orifice plate flowmeter, the sampling pipeline, the comparator, the controller, the electromagnetic valve, the purging gas source and the purging pipeline form a wind measuring purging unit, the sampling pipeline comprises a first sampling pipeline and a second sampling pipeline, the orifice plate flowmeter comprises a first orifice plate flowmeter and a second orifice plate flowmeter, the comparator comprises a first comparator and a second comparator, the electromagnetic valve comprises a first electromagnetic valve and a second electromagnetic valve, the purging gas source comprises a first purging gas source and a second purging gas source, the purging pipeline comprises a first purging pipeline and a second purging pipeline, the first sampling pipeline, the first orifice plate flowmeter, the first comparator, the controller, the first electromagnetic valve and the first purging gas source form a first wind measuring purging unit, the second sampling pipeline, the second orifice plate flowmeter, the second comparator, the controller, the second electromagnetic valve and the second purging gas source form a second wind measuring purging unit, the first wind measurement purging unit and the second wind measurement purging unit are identical in structure, the first orifice plate flowmeter is arranged on a first sampling pipeline, the first purging gas source is connected and communicated with the first sampling pipeline through the first purging pipeline, the first electromagnetic valve is arranged on the first purging pipeline, the first orifice plate flowmeter is electrically connected with a first input end of a first comparator, the electric actuator is electrically connected with a second input end of the first comparator, an output end of the first comparator is electrically connected with an input end of a controller, and a control end of the controller is electrically connected with a control end of the first electromagnetic valve; the second orifice plate flowmeter is arranged on a second sampling pipeline, the second purging gas source is connected and communicated with the second sampling pipeline through a second purging pipeline, the second electromagnetic valve is arranged on the second purging pipeline, the second orifice plate flowmeter is electrically connected with a first input end of a second comparator, the electric actuator is electrically connected with a second input end of the second comparator, an output end of the second comparator is electrically connected with an input end of the controller, and a control end of the controller is electrically connected with a control end of the second electromagnetic valve.
3. The air volume measuring device of the oxidation fan as claimed in claim 1, wherein: the electromagnetic valve is an electromagnetic stop valve.
4. The air volume measuring device of the oxidation fan as claimed in claim 1, wherein: the controller is a single chip microcomputer.
5. The air volume measuring device of the oxidation fan as claimed in claim 1, wherein: still include the alarm, the controller is connected with the alarm electricity.
6. An oxidation fan air volume measuring device according to claim 5, characterized in that: the alarm is a buzzer, an indicator light or a voice player.
7. The air volume measuring device of the oxidation fan as claimed in claim 1, wherein: the controller is electrically connected with and communicates with the communication device, and the server is connected with and communicates with the communication device.
8. An oxidation fan air volume measuring device according to claim 7, characterized in that: the communication device is a wired communication device, and the server is in wired connection and communication with the wired communication device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220477711.8U CN217107521U (en) | 2022-03-07 | 2022-03-07 | Air quantity measuring device of oxidation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220477711.8U CN217107521U (en) | 2022-03-07 | 2022-03-07 | Air quantity measuring device of oxidation fan |
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| Publication Number | Publication Date |
|---|---|
| CN217107521U true CN217107521U (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220477711.8U Active CN217107521U (en) | 2022-03-07 | 2022-03-07 | Air quantity measuring device of oxidation fan |
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| Country | Link |
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| CN (1) | CN217107521U (en) |
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- 2022-03-07 CN CN202220477711.8U patent/CN217107521U/en active Active
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