CN212039455U - Dust collector and dust collector differential pressure detection system - Google Patents

Abstract

The embodiment of the utility model discloses dust remover and dust remover pressure differential detecting system. The dust remover comprises a dust remover body and a differential pressure sensor, wherein the differential pressure sensor is provided with a low-pressure input end, a high-pressure input end and a differential pressure output end, the low-pressure input end is connected with an outlet of the dust remover body, the high-pressure input end is connected with an inlet of the dust remover body, and the differential pressure sensor is used for acquiring the differential pressure of the dust remover and outputting a sensing signal from the differential pressure output end. The embodiment of the utility model provides a through connect differential pressure sensor at the dust remover, the differential pressure detection signal to the dust remover is exported by differential pressure sensor's differential pressure output, thereby can feed back the pressure differential information of dust remover to outside system, the problem of the pressure differential information that the dust remover can only carry out the unit demonstration among the prior art and can not in time acquire the dust remover has been solved, the pressure differential state that can be automatic to the dust remover has been realized monitoring, thereby when the pressure differential of dust remover goes wrong, can in time discover and overhaul.

Description

Dust collector and dust collector differential pressure detection system

technical field

The embodiments of the utility model relate to dust collector technology, in particular to a dust collector and a pressure difference detection system of the dust collector.

Background technique

In the field of feed production, pulse-type dust collectors are usually used for dust removal. When the current pulse type dust collectors are used for differential pressure detection, they are all single-machine detection and single-machine display, that is, each dust collector detects its own differential pressure value, and manually detects the current state of the corresponding dust collector based on the differential pressure value. As a result, the pressure difference of the dust collector is not obtained in time, resulting in the failure of the dust collector to be discovered in time, and the impact of dust spillage on the system and the environment.

Utility model content

The embodiment of the present utility model provides a dust collector and a pressure difference detection system of the dust collector, so as to obtain the pressure difference state of the dust collector in real time.

In the first aspect, an embodiment of the present invention provides a dust collector, comprising a dust collector body and a differential pressure sensor, wherein the differential pressure sensor is provided with a low pressure input end, a high pressure input end and a differential pressure output end, wherein,

The low-pressure input end is connected to the outlet of the dust collector body, the high-pressure input end is connected to the inlet of the dust collector body, and the differential pressure sensor is used to obtain the pressure difference of the dust collector. The difference output terminal outputs the sensing signal.

Optionally, filters are provided between the low-pressure input end and the outlet of the dust collector body, and between the high-pressure input end and the inlet of the dust collector body, and the filters are used for filtering the incoming dust. The gas of the differential pressure sensor is filtered.

Optionally, a blowing device is connected to the inlet path of the high-pressure input end, and the blowing device is used to spray compressed gas of a set pressure to the high-pressure input end to clean the high-pressure input end.

Optionally, the blowing device is connected between the high-voltage input end and the corresponding filter.

Optionally, the inlet of the dust collector body is communicated with the high pressure input end through a first pipeline; the blowing device is communicated with the first pipeline through a second pipeline, and the second pipeline is connected to the first pipeline. A control switch and a pressure reducing valve are provided.

Optionally, the high-pressure input end communicates with the corresponding filter and the blowing device through a three-way valve.

Optionally, the dust collector is a pulse type bag filter.

In a second aspect, an embodiment of the present invention further provides a differential pressure detection system for a dust collector, including a controller, wherein the controller is electrically connected to a plurality of differential pressure sensors of the dust collector according to any one of the embodiments, the The controller is configured to output a corresponding trigger signal based on the sensing signal.

Optionally, the controller includes a pressure comparison module and a communication module, wherein,

The pressure comparison module is configured to compare the received pressure difference information with a set pressure threshold, and output the corresponding trigger signal based on the comparison result;

The communication module is configured to send a maintenance signal to a preset terminal based on the trigger signal. Optionally, it also includes a display screen and an alarm that are electrically connected to the controller, wherein,

The display screen is used to display the differential pressure information of each of the dust collectors;

The alarm is used for sound and/or light alarm when the trigger signal is received.

In the embodiment of the present utility model, a differential pressure sensor is connected to the dust collector, the high pressure input end of the differential pressure sensor is connected to the inlet of the dust collector body to obtain the high pressure signal of the dust collector, and the low pressure input end is connected to the outlet of the dust collector body to obtain the dust collector body The low pressure signal of the precipitator is output, and then the differential pressure detection signal for the precipitator is output through the differential pressure output terminal, so that the differential pressure information of the precipitator can be fed back to the external system, which solves the problem that the precipitator in the prior art can only be displayed on a stand-alone machine and cannot be obtained in time. The problem of the pressure difference information of the dust collector can automatically monitor the pressure difference state of the dust collector, so that when there is a problem with the pressure difference of the dust collector, it can be found and repaired in time.

Description of drawings

1 is a schematic structural diagram of a dust collector provided by an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a differential pressure detection system provided by an embodiment of the present invention.

Detailed ways

The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention.

Figure 1 is a schematic structural diagram of a dust collector provided by an embodiment of the present utility model. The dust collector can automatically transmit a differential pressure signal to an external control system. As shown in Figure 1, the dust collector includes a dust collector body 1 and a differential pressure sensor. 4. The differential pressure sensor 4 is provided with a low pressure input end, a high pressure input end and a differential pressure output end. The low pressure input end is connected to the outlet 3 of the dust collector body 1, and the high pressure input end is connected to the inlet 2 of the dust collector body 1. 4 is used to obtain the differential pressure of the dust collector, and output the sensing signal from the differential pressure output terminal.

Among them, the differential pressure sensor 4 outputs the sensing signal through the differential pressure output terminal to realize the automatic output of the differential pressure of the dust collector, so that based on the sensing signal output from the differential pressure output terminal, the automatic monitoring of the differential pressure state of the dust collector can be realized. .

In one embodiment, the dust collector is a bag-type pulse dust collector. The exhaust gas in the production process enters the dust collector body 1 through the inlet 2 of the dust collector, and the exhaust gas is filtered inside the dust collector body 1 . The filtered exhaust gas is discharged through the outlet 3 of the pulse dust collector. The dust collector body 1 is provided with a cleaning compressed air component 6 for cleaning the bag of the dust collector. The high pressure input end of the differential pressure sensor 4 is connected to the inlet 2 of the dust collector through the connecting hose, and the low pressure input end of the differential pressure sensor 4 is connected to the outlet 3 of the dust collector through the connecting hose, so that the differential pressure sensor 4 detects the output of the dust collector. differential pressure state.

In one embodiment, the differential pressure output end of the differential pressure sensor 4 is connected to the control system, so that the control system can automatically obtain the differential pressure device of the precipitator, so as to realize online automatic monitoring of the differential pressure state of the precipitator through the control system.

In order to avoid the problem that the differential pressure display system is easily blocked, in one embodiment, the air entering the differential pressure sensor 4 is filtered, specifically:

A filter 5 is provided between the low pressure input end of the differential pressure sensor and the outlet 3 of the dust collector body 1, and between the high pressure input end of the differential pressure sensor and the inlet 2 of the dust collector body 1. The gas of the differential pressure sensor 4 is filtered.

By arranging filters 5 at both inlets of the differential pressure sensor 4, the gas entering the differential pressure sensor 4 is filtered by the filters 5, thereby reducing the impact of dust at the two inlets of the differential pressure sensor 4 and the transmission channel. Accumulation, which alleviates the clogging problem of the differential pressure sensor 4 .

In order to further solve the clogging problem of the differential pressure sensor 4, in one embodiment, the differential pressure sensor 4 is further connected with a blowing device 11, specifically,

A blower device 11 is connected to the inlet path of the high pressure input end of the differential pressure sensor, and the blower device 11 is used to spray compressed gas of a set pressure to the high pressure input end to clean the high pressure input end.

According to the above analysis, the gas at the outlet 3 of the precipitator is filtered clean gas, so the low-pressure input end of the differential pressure sensor 4 and its transmission pipeline connected to the outlet 3 of the precipitator are not easily blocked; Because the input end is connected to the inlet 2 of the dust collector body 1, and the gas at the dust collector inlet 2 has not been purified, the high-pressure input end connected to the inlet 2 is easily blocked by impurities such as dust. In this embodiment, the blowing device 11 is connected to the inlet path of the high-pressure input end, and the blowing device 11 sprays compressed gas with a certain pressure to the high-pressure input end to clean the high-pressure input end and its communication pipeline, thereby further solving the problem of the differential pressure sensor. 4. The problem of easy blockage ensures that the differential pressure sensor 4 can work normally.

On the basis of the above technical solutions, optionally, the blowing device 11 is connected between the high pressure input end and the corresponding filter 5 to clean the filter 5 and the communication pipes of the high pressure input end through the blowing device 11 .

In one embodiment, the inlet 2 of the dust collector body 1 is communicated with the high-pressure input end through the first pipeline 7 ; the blowing device 11 is communicated with the first pipeline 7 through the second pipeline 8 , and the second pipeline 8 A control switch 10 and a pressure reducing valve 9 are provided.

The control switch 10 is used to control the on-off of the second pipeline 8. When the control switch 10 is turned on, the blowing device 11 sprays compressed gas of a set pressure to the high pressure input end and the corresponding filter 5 for cleaning. The pressure reducing valve 9 is used to adjust the input compressed air to the set pressure, so that the injected compressed air meets the pressure requirement of the differential pressure sensor 4 and avoids damage to the differential pressure sensor 4 .

In one embodiment, when the dust collector is turned on and off, the cleaning work is performed once respectively. Specifically, the control switch 10 responds to the received power-on command or power-off command, and starts the blowing device 11 to spray compressed gas to the high-pressure input end and the corresponding filter 5 to perform a cleaning operation.

Optionally, the high-pressure input end is communicated with the corresponding filter 5 and the blowing device 11 through a three-way valve, so that a T is formed between the second pipeline 8 connecting the high-pressure input end and the first pipeline 7 communicating with the blowing device 11 . type connection, so that the blower 11 can clean the filter 5 and the high pressure input.

The working principle of the dust collector is: the dust collector outputs the sensing signal to the external equipment through the connected differential pressure sensor, and the staff can judge the differential pressure state of the dust collector based on the acquired sensing signal, so as to realize the differential pressure of the dust collector. Online monitoring of status.

The technical solution of the embodiment of the present utility model is that by connecting a differential pressure sensor to the dust collector, the high pressure input end of the differential pressure sensor is connected to the inlet of the dust collector body to obtain the high pressure signal of the dust collector, and the low pressure input end is connected to the outlet of the dust collector body, so as to obtain the high pressure signal of the dust collector. Obtain the low pressure signal of the precipitator, and then output the differential pressure detection signal for the precipitator through the differential pressure output terminal, so that the differential pressure information of the precipitator can be fed back to the external system, which solves the problem that the precipitator in the prior art can only be displayed on a single machine. The problem of not being able to obtain the pressure difference information of the dust collector in time can realize the automatic monitoring of the pressure difference state of the dust collector, so that when there is a problem with the pressure difference of the dust collector, it can be found and repaired in time.

An embodiment of the present invention also provides a differential pressure detection system for a dust collector. FIG. 2 is a schematic structural diagram of a differential pressure detection system provided in this embodiment. Referring to FIG. 2 , the differential pressure detection system 210 for a dust collector includes a controller. 211. The controller 211 is electrically connected to a plurality of differential pressure sensors of the dust collector provided in any embodiment of the present invention, and the controller 211 is configured to output a corresponding trigger signal based on the sensor signal.

The controller 211 is electrically connected with multiple differential pressure sensors, so that the differential pressure detection system can simultaneously acquire the differential pressure states of multiple dust collectors, that is, the differential pressure detection system can monitor the differential pressure of each connected dust collector online. state.

The controller 211 in the differential pressure detection system calculates and outputs the corresponding trigger signal through the acquired sensing signals of each differential pressure sensor, and the trigger signal can be used to start the corresponding functional device. The connected alarm device 230 performs voice alarm and the like.

In one embodiment, the controller 211 includes a pressure comparison module (not shown in the figure) and a communication module (not shown in the figure), and the pressure comparison module is used to compare the received sensing signal with the set pressure threshold. Compare, and output the corresponding trigger signal based on the comparison result.

The communication module is used for sending the maintenance signal to the preset terminal based on the trigger signal. For example, the terminal information of the maintenance personnel can be pre-configured in the differential pressure detection system 210, and the controller 211 generates a trigger signal based on the sensing signal to trigger the communication module. After the communication module receives the trigger signal, it generates at least one trigger signal. The maintenance information with the dust collector number is sent to the pre-configured terminal, so that the maintenance personnel can remotely and automatically obtain the fault information of the dust collector through the terminal, which further facilitates the maintenance personnel to carry out quick maintenance.

In one embodiment, the differential pressure detection system further includes a display screen 220 and an alarm 230 electrically connected with the controller 211, wherein,

The display screen 220 is used to display the differential pressure information of each dust collector;

The alarm 230 is used to provide an audible and/or optical alarm when a trigger signal is received.

The display screen 220 can be used to display the differential pressure information of each dust collector. For example, it can be displayed according to the number of the dust collector, so that the staff can intuitively understand the differential pressure state of each dust collector through the screen.

The alarm 230 is used to send sound and/or light signals to remind the staff that there is an abnormality in the pressure difference of the dust collector. For example, a voice alarm can be provided by a buzzer, and/or a light alarm can be provided by an LED light. Optionally, the controller 211 may output different trigger signals based on the comparison result between the sensing signal and the pressure threshold. For example, when the sensing signal is greater than the pressure threshold, a first trigger signal is output to instruct the alarm 230 to give an alarm according to the first voice signal and/or the first light signal, for example, it may be to send a rapid voice signal/and/or Send a high-frequency flashing signal to alarm; when the sensing signal is less than the pressure threshold, output a second trigger signal to instruct the alarm 230 to alarm according to the second voice signal and/or the second light signal, for example, it can be sent slowly Alarm by voice signal and/or low frequency flashing signal. Therefore, the staff can judge the differential pressure state of the dust collector according to the alarm signal of the alarm device 230 . In one embodiment, the precipitator is a bag-type pulse precipitator, wherein the differential pressure state of the differential pressure sensor and the bag-type pulse precipitator have the following corresponding relationship:

When the sensing signal output by the differential pressure sensor is higher than the set pressure threshold, it indicates that there is a problem with the bag or cleaning the compressed air components or other equipment in the bag-type pulse dust collector. Accordingly, the staff can directly carry out targeted maintenance;

When the sensing signal output by the differential pressure sensor is lower than the set pressure threshold, it indicates that the bag in the bag-type pulse dust collector has installation problems or other equipment in the dust collector.

Therefore, according to the alarm signal and/or the information displayed on the screen, the staff can directly locate the precipitator with abnormal pressure difference, and preliminarily judge the corresponding problem of the corresponding precipitator.

In the technical solution of this embodiment, by electrically connecting the differential pressure detection system with the differential pressure sensor of each dust collector, the differential pressure detection system can acquire the differential pressure state of each dust collector in real time; the differential pressure detection system outputs the corresponding differential pressure based on the sensing signal The trigger signal is used to drive the corresponding functional devices to assist the staff in judging the differential pressure state of the dust collector.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions can be made to those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present utility model has been described in detail through the above embodiments, the present utility model is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present utility model. Rather, the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A dust remover is characterized by comprising a dust remover body and a differential pressure sensor, wherein the differential pressure sensor is provided with a low-pressure input end, a high-pressure input end and a differential pressure output end,

the low-pressure input end is connected with an outlet of the dust remover body, the high-pressure input end is connected with an inlet of the dust remover body, and the differential pressure sensor is used for acquiring the differential pressure of the dust remover and outputting a sensing signal from the differential pressure output end.

2. A precipitator in accordance with claim 1, wherein filters are provided between the low pressure input and the outlet of the precipitator body, and between the high pressure input and the inlet of the precipitator body, the filters being configured to filter gas entering the differential pressure sensor.

3. A precipitator in accordance with claim 2, wherein a blowing device is connected to an inlet path of the high pressure input, the blowing device being configured to inject a compressed gas of a set pressure to the high pressure input to clean the high pressure input.

4. A precipitator in accordance with claim 3, wherein the blowing means is connected between the high pressure input and the respective filter.

5. A precipitator in accordance with claim 3, wherein the inlet of the precipitator body communicates with the high pressure input via a first conduit; the blowing device is communicated with the first pipeline through a second pipeline, and a control switch and a pressure reducing valve are arranged on the second pipeline.

6. A precipitator in accordance with claim 4, wherein the high pressure input communicates with the corresponding filter and the blowing means via a three-way valve.

7. A precipitator in accordance with any of claims 1-6, wherein the precipitator is a pulse bag precipitator.

8. A differential pressure detecting system for a dust collector, comprising a controller electrically connected to a plurality of differential pressure sensors of the dust collector of any one of claims 1 to 6, the controller being configured to output a corresponding trigger signal based on the sensor signal.

9. The differential pressure detection system of claim 8, wherein the controller comprises a pressure comparison module and a communication module, wherein,

the pressure comparison module is used for comparing the received differential pressure information with a set pressure threshold value and outputting a corresponding trigger signal based on a comparison result;

the communication module is used for sending a maintenance signal to a preset terminal based on the trigger signal.

10. The differential pressure sensing system of claim 8, further comprising a display and an alarm electrically connected to the controller, wherein,

the display screen is used for displaying the pressure difference information of each dust remover;

and the alarm is used for giving an alarm by sound and/or light when receiving the trigger signal.

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