Water pressure monitoring and alarm method for self-excited wet dust collector

Abstract

The present invention provides a water pressure monitoring and alarm method for a self-excited wet dust collector, and belongs to the technical field of dust collectors. It solves the problem of insufficient safety caused by the inability to monitor water pressure. It includes the following steps: A. A water collecting part with a water collecting chamber is arranged in the dust removal chamber of the shell, and the water collecting chamber runs through the top of the water collecting part. The water collecting part is used to collect the water vapor generated in the dust removal chamber during dust removal to form a water flow; B. The water flow formed by the water vapor collected by the water collecting part is formed into a downward flow state through a water pipe vertically arranged and connected to the bottom of the water collecting part; C. A pressure sensor is used to detect the water pressure in the water pipe in real time during the dust removal process; D. When the detected water pressure is less than the set pressure value, an alarm is issued through an alarm. It has the advantages of safer use and high alarm accuracy.

Description

Technical Field

[0001] The invention belongs to the technical field of dust collectors, and relates to a self-excited wet dust collector, and in particular to a water pressure monitoring and alarm method for a self-excited wet dust collector. Background Art

[0002] When polishing and grinding the outer surface of the workpiece, dust will be generated. Dust floating in the air will pollute the environment and seriously endanger the health of workers. Some dust can even cause explosions. Therefore, it is necessary to use a dust collector to deal with dust. Dust collectors are divided into dry dust collectors and wet dust collectors. Among them, wet dust collectors are more widely used. Wet dust removal is a method of using water to fully contact with dust-containing gas to wash away dust particles and purify the gas. It is particularly suitable for handling high-temperature, high-humidity, flammable and explosive dust-containing gases. Traditional wet dust collectors use water pumps to spray (that is, use water pumps to pump water into the wet dust collector through pipelines for spraying and dust removal), but the washing liquid will become more and more dirty as the dust removal time increases, which will cause the water pump to be blocked and shorten its service life.

[0003] To this end, the Chinese patent discloses a wet polishing dust collector with application number 201720075881.2, which includes a shell with an inner cavity, the bottom of the inner cavity of the shell is a water storage area, the front of the inner cavity is a polishing dust collection area, and the side wall of the polishing dust collection area is provided with a control port; the rear of the inner cavity is an air outlet area, and the polishing dust collection area and the air outlet area are separated by a partition fixedly connected to the shell; an air outlet is provided on the side wall of the air outlet area in the shell; the shell is also provided with a liquid level control mechanism for controlling the water height in the water storage area so that a wind gap is left between the bottom edge of the partition and the liquid surface. A water vapor separation structure is provided in the air outlet area or the air outlet is connected in series with a water vapor separation structure, and the water vapor separation structure is a plurality of inclined plates arranged in the air outlet area and fixedly connected to the shell. When in use, a certain amount of water is placed in the water holding area and a wind gap is ensured between the water surface and the bottom edge of the partition. The dust generated by polishing is located in the polishing dust collection area. When the fan is started, the airflow will suck the dust into the air outlet area through the wind gap. The airflow speed is high when the airflow passes through the wind gap, which will force a large amount of water splashes on the liquid surface. The water mist formed by the water splashes is mixed into the airflow, so that the airflow will be mixed with water vapor. After the airflow containing water vapor and dust is separated by the separation mechanism (the water vapor separation structure is composed of multiple inclined plates, which make the airflow flow in a circuitous way. After the water mist collides with the inclined plate, it will lose kinetic energy and condense on the surface of the inclined plate), clean air flows out from the air outlet, while dust and water vapor adhere to the inclined plate. After the water vapor accumulates into a water flow, it will flow back down along the inclined plate with the dust. The wet polishing dust collector uses the fan gravity to make the water self-excited at the wind gap, and no longer needs to rely on the water pump to spray to produce water mist, thereby eliminating the problem of water pump blockage.

[0004] However, according to the requirements of 8-4-10 in the national standard GB15577-2018 Dust Explosion Safety Regulations and 5-2-2 in the National Safety Production Code AQ4273-2016, in order to ensure the dust removal effect and safe use, the water volume and water pressure of the wet dust collector should be equipped with monitoring and alarm devices. In the conventional wet dust collector with water supply and spraying by water pump, water volume monitoring is achieved by setting a liquid level sensor in the water storage area, and water pressure monitoring is achieved by setting a pressure sensor on the water supply pipe of the water pump. Compared with the wet dust collector with water supply and spraying by water pump, the water volume monitoring of this self-excited dust collector can adopt the same structure, but the water pressure cannot be monitored because it adopts the water splash generated by the self-excitation of airflow on the water surface, so it is impossible to alarm according to the monitoring results, so there are deficiencies in safety. Summary of the invention

[0005] The purpose of the present invention is to address the above-mentioned problems existing in the prior art and to propose a water pressure monitoring and alarm method for a self-excited wet dust collector, which solves the problem of insufficient safety caused by the inability to monitor water pressure.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] The water pressure monitoring and alarm method of the self-excited wet dust collector is characterized in that the water pressure monitoring and alarm method comprises the following steps:

[0008] A. A water collecting member having a water collecting chamber is arranged in the dust removal chamber of the housing, and the water collecting chamber runs through the top of the water collecting member. The water collecting member is used to collect the water vapor generated in the dust removal chamber during dust removal to form a water flow;

[0009] B. The water flow formed by the water vapor collected by the water collecting member is directed downward through a water guide pipe vertically arranged and connected to the bottom of the water collecting member to form a flowing state;

[0010] C. During the dust removal process, a pressure sensor is used to detect the water pressure in the water pipe in real time;

[0011] D. When the detected water pressure is lower than the set pressure value, an alarm will be sounded through an alarm.

[0012] First, a water collecting part, a water pipe, a pressure sensor and an alarm are installed on the self-excited wet dust collector to ensure that the water pressure monitoring and alarm method can be used to realize the monitoring and alarm of the water pressure. Specifically, during dust removal, water splashes are generated by self-excitation in the dust removal chamber. First, a part of the water splashes falling due to its own weight are collected by the water collecting part to form a water flow in the water collecting part. Then, the formed water flow flows downward through the water pipe connected to the bottom of the water collecting part and arranged vertically. In this way, a continuous flow state will be formed in the water pipe. When there is flow, water pressure will be generated. Then, the pressure sensor can cooperate with the continuous flow state in the water pipe to detect the water pressure in real time. When the pressure detected by the pressure sensor is lower than the set pressure value (the set pressure value of the pressure sensor is a value greater than the minimum pressure value in the water pipe that the pressure sensor can detect. Before formally using this method for water pressure monitoring and alarm, first test-run the self-excited wet dust collector, and then record all the pressure values ​​that the pressure sensor can detect, and select a value greater than the minimum pressure value recorded by the pressure sensor as the set pressure value for the alarm), the alarm will be sounded through the alarm. In this way, the water pressure monitoring and alarm of the self-excited wet dust collector is realized, and the safety of use is improved.

[0013] In the above-mentioned water pressure monitoring and alarm method for the self-excited wet dust collector, the water collecting member is trumpet-shaped or column-shaped.

[0014] Whether trumpet-shaped or columnar, it is conducive to collecting water splashes and forming water flows, and can then be used in conjunction with pressure sensors to perform real-time detection of the water pressure of water flowing in the water pipe and use an alarm to sound an alarm when the water pressure is abnormal.

[0015] In the water pressure monitoring and alarm method of the above-mentioned self-excited wet dust collector, in the above-mentioned step C, the pressure sensor diverts the water flow in the water pipe through a connecting pipe that passes horizontally through the shell to complete the detection of the water pressure in the water pipe, and the pressure sensor is arranged outside the shell.

[0016] Specifically, after the water collecting component collects the water splashes to form a water flow, the water flows downward into the water pipe. Part of the water flows out of the water pipe and part of the water flows into the connecting pipe. In this way, the water pipe is always in a flow state with both inflow and outflow. The pressure sensor can detect the water pressure throughout the dust removal process and can use the alarm to sound an alarm when the water pressure is abnormal.

[0017] In the water pressure monitoring and alarm method of the above-mentioned self-excited wet dust collector, the water flowing into the water pipe from the water collecting member is discharged outwardly through a drainage member connected to the lower end of the water pipe and provided with a drainage hole.

[0018] The water flowing into the water pipe from the water collecting part is discharged outwardly by using a drainage piece provided with a drainage hole. The drainage hole makes the flow cross-sectional area of ​​the upper end of the water pipe larger than the flow cross-sectional area at the lower end. In this way, it can be ensured that the amount of water flowing into the water pipe is always greater than the amount flowing out of the water pipe. Therefore, during the dust removal process, a part of the water in the water pipe can always be drained into the connecting pipe. In this way, the water pressure can always be detected to ensure reliability.

[0019] In the water pressure monitoring and alarm method of the above-mentioned self-excited wet dust collector, the water flowing into the water pipe from the water collecting member is discharged to the outside through a valve connected to the lower end of the water pipe.

[0020] Specifically, by continuously adjusting the opening of the valve, the amount of water flowing into the water pipe is always greater than the amount flowing out of the water pipe, so that during the dust removal process, a portion of water in the water pipe can always flow into the connecting pipe so that the water pressure can be detected by the pressure sensor.

[0021] In the water pressure monitoring and alarm method of the above-mentioned self-excited wet dust collector, the connecting pipe is composed of a main pipe with a boss on the outside and one end extending out of the shell and a secondary pipe threadedly connected to the outside of the shell. The shell at the protruding part of the main pipe is clamped between the boss and the end of the secondary pipe.

[0022] After the end of the main pipe fixedly connected to the side of the water pipe passes through the dust removal chamber and out of the shell, the auxiliary pipe is threadedly connected to the end of the main pipe, and the shell at the protruding part of the main pipe is clamped by cooperating with the end of the auxiliary pipe, thereby realizing the installation and fixation of the water pipe and the water collecting part in the dust removal chamber, so that the water pressure monitoring and alarm method can use the water collecting part to collect water splashes to form a water flow, and then use the water pipe to make the water flow flow downward to generate water pressure.

[0023] In the water pressure monitoring and alarm method of the above-mentioned self-excited wet dust collector, a water vapor separation component and a connecting plate are fixed in the dust removal chamber, and the connecting plate cooperates with the front inner wall and the left and right inner walls of the dust removal chamber to form a water storage tank located below the water vapor separation component. There is a wind gap between the connecting plate and the rear inner wall of the dust removal chamber. In the above-mentioned step A, the water collecting component is arranged above the wind gap to collect water splashes passing upward through the wind gap.

[0024] The water splashes generated by the self-excitation of the air flow on the water surface are greatest in the lower part of the dust removal chamber. Placing the water collecting component above the wind gap is beneficial for the water collecting component to collect more water splashes and form a continuous flow state with the help of the water pipe, so that the pressure sensor can detect the water pressure in the water pipe in real time, and sound an alarm through the alarm when the detected water pressure is lower than the set pressure value, so as to improve the safety of the self-excited wet dust collector during use.

[0025] In the above-mentioned water pressure monitoring and alarm method for the self-excited wet dust collector, in the above-mentioned step C, a pressure sensor with a reading unit of kilopascals is used to detect the pressure.

[0026] In the above-mentioned water pressure monitoring and alarm method for the self-excited wet dust collector, in the above-mentioned step D, the alarm is sounded and lighted.

[0027] Compared with the prior art, the water pressure monitoring and alarm method of the self-excited wet dust collector uses a water collecting piece in the dust removal chamber to collect the water splashes generated during dust removal and form a water flow, and then uses a vertically arranged water pipe to make the formed water flow flow downward, so that a continuous flow state is formed in the water pipe, and then a pressure sensor is used to cooperate with the continuous flow state in the water pipe to detect the water pressure in real time, so that when the pressure detected by the pressure sensor is lower than the set pressure value, an alarm is sounded through the alarm, thereby realizing the water pressure monitoring and alarm of the self-excited wet dust collector and improving the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional schematic diagram of a self-excited wet dust collector.

[0029] Figure 2 This is a schematic diagram of the self-excited wet dust collector from another angle.

[0030] Figure 3 This is a front view of a self-excited wet dust collector (without the fan).

[0031] Figure 4 yes Figure 3 Sectional view along AA direction.

[0032] Figure 5 yes Figure 3 Cross-sectional view along the BB axis.

[0033] Figure 6 yes Figure 5 Enlarged cross-sectional view of the middle water collecting part and the water guide pipe.

[0034] Figure 7 This is a schematic diagram of a self-excited wet dust collector at work (the direction of the arrow in the figure is the direction of the water splash).

[0035] Figure 8 It is an enlarged cross-sectional view of the water collecting member and the water guide pipe in the second embodiment.

[0036] Fig. 9 It is an enlarged cross-sectional view of the water collecting part and the water guide pipe in the third embodiment.

[0037] In the figure, 1, shell; 1a, dust collecting chamber; 1b, dust removal chamber; 1b1, connecting wall one; 1b2, connecting wall two; 1b3, connecting wall three; 1c, connecting port; 2, wind guide hood; 2a, air inlet; 2b, air outlet; 3, fan; 4, water vapor separation member; 4a, inclined plate; 5, connecting plate; 6, water storage tank; 7, wind gap; 8, drain port; 9, guide plate; 10, water collecting member; 10a, water collecting chamber; 11, water guide pipe; 12, pressure sensor; 13, alarm; 14, connecting pipe; 14a, main pipe; 14a1, boss; 14b, auxiliary pipe; 15, drainage member; 15a, drainage hole; 16, valve. DETAILED DESCRIPTION

[0038] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0039] Embodiment 1

[0040] like Figure 1-Figure 5 As shown, the self-excited wet dust collector includes a shell 1 with a dust collecting chamber 1a and a dust removing chamber 1b along the front and back. The number of dust collecting chambers 1a is specifically two and they are arranged side by side. The two dust collecting chambers 1a both pass through the front side of the shell 1. The top of the shell 1 has a through hole connected to the top of the dust removing chamber 1b. An air guide hood 2 is fixed to the top of the shell 1. The air guide hood 2 has an air inlet 2a arranged downward and connected to the through hole, and an air outlet 2b arranged on the side. A fan 3 is fixed to the top of the air guide hood 2, and the impeller of the fan 3 is located in the air guide hood 2 and arranged downward. A water vapor separator 4 is fixed in the dust removal chamber 1b, wherein the water vapor separator 4 includes two inclined plates 4a, one of which is located above the other inclined plates 4a. The rear end of the lower inclined plate 4a is fixedly connected to the rear inner wall of the dust removal chamber 1b, and its front end is tilted downward, and there is a gap between the front end and the front inner wall of the dust removal chamber 1b; the front end of the upper inclined plate 4a is fixedly connected to the front inner wall of the dust removal chamber 1b, and its rear end is tilted downward, and there is a gap between the rear end and the rear inner wall of the dust removal chamber 1b. In practice, the number of inclined plates 4a can be increased according to demand.

[0041] Specifically, Figure 4 and Figure 5 As shown, the front inner wall of the dust removal chamber 1b includes, from top to bottom, a connecting wall 1b1, a connecting wall 1b2 and a connecting wall 1b3. The connecting wall 1b1 and the connecting wall 1b3 are both vertically arranged, the front end of the connecting wall 1b2 is connected to the lower end of the connecting wall 1b1, and the rear end of the connecting wall 1b2 is tilted downward and connected to the upper end of the connecting wall 1b3. The inclined plate 4a is located within the range of the dust removal chamber 1b where the connecting wall 1b1 is located, and the front end of the inclined plate 4a located below is located above the connecting wall 1b2.

[0042] Furthermore, if Figure 4 and Figure 5 As shown, a connecting plate 5 is also fixed in the dust removal chamber 1b, and the connecting plate 5 is fixedly connected to the inner walls on the left and right sides of the dust removal chamber 1b. The front inner wall of the dust removal chamber 1b, the inner walls on the left and right sides of the dust removal chamber 1b and the connecting plate 5 cooperate to form a water storage tank 6 located below the water vapor separation member 4, and there is a wind clearance 7 between the connecting plate 5 and the inner wall on the rear side of the dust removal chamber 1b. In this embodiment, the rear end of the connecting plate 5 is tilted upward relative to the front end, and the water storage tank 6 is specifically formed by the upper side of the connecting plate 5, the inner walls on the left and right sides of the dust removal chamber 1b and the connecting wall 3 1b3. The wind clearance 7 is located between the rear end of the connecting plate 5 and the inner wall on the rear side of the dust removal chamber 1b, and there is a water drain port 8 between the front end of the connecting plate 5 and the connecting wall 3 1b3. The housing 1 has a connecting port 1c connecting the bottom of the dust collection chamber 1a and the bottom of the dust removal chamber 1b, and the water drain port 8 is connected to the connecting port 1c, and the connecting port 1c runs through the connecting wall 3 1b3. A vertically arranged guide plate 9 is fixedly connected to the lower end of the water storage plate. The guide plate 9 is located at the connecting opening 1c and the lower end of the guide plate 9 is higher than the lower edge of the connecting opening 1c.

[0043] When in use, water is filled in the housing 1, and the water is located at the bottom of the dust removal chamber 1b and the bottom of the dust collection chamber 1a, and it is ensured that the water level is lower than the upper edge of the connecting port 1c. When the fan 3 is started, the airflow is sucked into the dust collection chamber 1a from the outside and enters the dust removal chamber 1b through the connecting port 1c together with the dust in the dust collection chamber 1a. The flow rate of the airflow is fast, so that a large amount of water splashes will be generated on the water surface, which is self-excitation. The water mist formed by the water splashes is mixed into the airflow and wrapped around the dust, so that water vapor will be mixed in the airflow. The airflow flows into the upper part of the dust removal chamber 1b through the wind gap 7. When the airflow passes through the water vapor separator 4, the water vapor mixed in the airflow will lose kinetic energy after colliding with the water vapor separator 4 and condense on the surface of the inclined plate 4a with the dust (clean air flows out from the air outlet 2b). After the water vapor accumulates into a water flow, it flows downward along the water vapor separator 4 with the dust. The water separated by the water vapor separation element 4 falls downward into the water storage tank 6, and flows downward from the drain port 8 along the side of the guide plate 9, and finally replenishes to the connecting port 1c to increase the water vapor content in the airflow.

[0044] The water pressure monitoring and alarm method of a self-excited wet dust collector comprises the following steps:

[0045] A. A water collecting member 10 having a water collecting chamber 10a is fixedly set in the dust removal chamber 1b of the shell 1. The water collecting chamber 10a runs through the top of the water collecting member 10. In this embodiment, the water collecting member 10 is specifically configured to be trumpet-shaped and is arranged above the connecting plate 5 in the shell 1, that is, above the wind gap 7. The water collecting member 10 is used to collect the water splashes generated in the dust removal chamber 1b and passing upward through the wind gap 7 during dust removal to form a water flow.

[0046] B. The water flow formed by the water vapor collected by the water collecting member 10 flows downward through a water guide pipe 11 vertically passing through the wind gap 7 and connected to the bottom of the water collecting member 10.

[0047] C. A pressure sensor 12 with a suitable measuring range (-1000 kPa to 1000 kPa in this embodiment) is selected according to the installation height of the water collecting member 10, the diameter of the water pipe 11 and the volume of the dust removal chamber 1b. The pressure sensor 12 is used to detect the water pressure in the water pipe 11 in real time during the dust removal process. Specifically, the pressure sensor 12 detects the water pressure in the water pipe 11 by diverting the water flow in the water pipe 11 through a connecting pipe 14 that passes horizontally through the shell 1. The pressure sensor 12 is arranged outside the shell 1. The connecting pipe 14 is formed by a main pipe 14a with a convex shoulder 14a1 on the outside and one end passing through the outside of the shell 1, and a secondary pipe 14b arranged outside the shell 1. The shell 1 at the point where the main pipe 14a protrudes is clamped between the convex shoulder 14a1 and the end of the secondary pipe 14b, thereby achieving the fixation of the water pipe 11 and the water collecting member 10 in the shell 1. The water flowing into the water pipe 11 from the water collecting member 10 is discharged outwardly through a drainage member 15 connected to the lower end of the water pipe 11 and provided with a drainage hole 15a. The water flowing into the water pipe 11 from the water collecting member 10 is discharged outwardly by means of the drainage member 15 provided with the drainage hole 15a. The drainage hole 15a makes the flow cross-sectional area at the upper end of the water pipe 11 larger than the flow cross-sectional area at the lower end, thereby ensuring that the amount of water flowing into the water pipe 11 is always greater than the amount flowing out of the water pipe 11, so that during the dust removal process, a part of the water in the water pipe 11 can always be drained into the connecting pipe 14, so that the water pressure can always be detected to ensure reliability.

[0048] D. Connect an alarm 13 and set a set pressure value. When the water pressure detected by the pressure sensor 12 is lower than the set pressure value, the alarm 13 will sound and light an alarm. In practice, an intelligent pressure controller is selected for use, which integrates pressure detection and alarm functions. The set pressure value of the pressure sensor 12 is a value greater than the minimum pressure value in the water pipe 11 that the pressure sensor 12 can detect. Before formally using this method for water pressure monitoring and alarm, first test run the self-excited wet dust collector, then record all the pressure values ​​that the pressure sensor 12 can detect, and select a value greater than the minimum pressure value recorded by the pressure sensor 12 as the set pressure value for the alarm 13.

[0049] Before using the water pressure monitoring and alarm method to realize water pressure monitoring and alarm, the machine needs to be modified first, that is, the water collecting part 10, the water pipe 11, the pressure sensor 12 and the alarm 13 are installed on the self-excited wet dust collector. The installation position and connection relationship are as follows: Figure 2 , Figure 5 and Figure 6 After the installation is completed, the water pressure monitoring and alarm method can be used to realize water pressure monitoring and alarm. Specifically, during dust removal, water splashes are generated by self-excitation in the dust removal chamber 1b, such as Figure 7 As shown, a part of the water splashes falling by its own weight is first collected by the water collecting member 10 to form a water flow in the water collecting member 10, and then the formed water flow flows downward through the water pipe 11 connected to the bottom of the water collecting member 10 and arranged vertically, so that a continuous flow state is formed in the water pipe 11. When there is flow, water pressure will be generated, and then the pressure sensor 12 can cooperate with the continuous flow state in the water pipe 11 to detect the water pressure in real time, so that when the pressure detected by the pressure sensor 12 is less than the set pressure value (the set pressure value of the pressure sensor 12 is a value greater than the minimum pressure value in the water pipe 11 that the pressure sensor 12 can detect, before the method is formally used for water pressure monitoring and alarm, the self-excited wet dust collector is first tested, and then all the pressure values ​​that the pressure sensor 12 can detect are recorded, and a value greater than the minimum pressure value recorded by the pressure sensor 12 is selected as the set pressure value of the alarm 13), the alarm 13 is used to alarm, thereby realizing the water pressure monitoring and alarm of the self-excited wet dust collector, and improving the safety of use.

[0050] Embodiment 2

[0051] The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: in this embodiment, Figure 8 As shown, the water collecting member 10 is in a columnar shape, specifically a circular column or a square column.

[0052] Embodiment 3

[0053] The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: in this embodiment, Fig. 9 As shown, the water flowing into the water pipe 11 from the water collecting part 10 is discharged outward through a valve 16 connected to the lower end of the water pipe 11. In practice, the opening of the valve 16 is continuously adjusted so that the amount of water flowing into the water pipe 11 is always greater than the amount flowing out of the water pipe 11, so that during the dust removal process, a part of the water in the water pipe 11 can always flow into the connecting pipe 14 so that the water pressure can be detected by the pressure sensor 12.

[0054] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A water pressure monitoring and alarm method for a self-excited wet dust collector, characterized in that: The water pressure monitoring and alarm method comprises the following steps: A. a water collecting member (10) having a water collecting chamber (10a) is arranged in the dust removal chamber (1b) of the housing (1), the water collecting chamber (10a) passing through the top of the water collecting member (10), and the water collecting member (10) is used to collect water splashes generated by self-excitation in the dust removal chamber (1b) during dust removal to form a water flow; B. directing the water flow formed by the water splashes collected by the water collecting member (10) to flow downward through a water guide pipe (11) vertically arranged and connected to the bottom of the water collecting member (10); C. During the dust removal process, a pressure sensor (12) is used to detect the water pressure in the water pipe (11) in real time; D. When the detected water pressure is lower than the set pressure value, an alarm is sounded through an alarm (13).

2. The water pressure monitoring and alarm method of the self-excited wet dust collector according to claim 1 is characterized in that: The water collecting member (10) is trumpet-shaped or column-shaped.

3. The water pressure monitoring and alarm method for a self-excited wet dust collector according to claim 2 is characterized in that: In the above-mentioned step C, the pressure sensor (12) detects the water pressure in the water pipe (11) by diverting the water flow in the water pipe (11) through a connecting pipe (14) that passes horizontally through the housing (1), and the pressure sensor (12) is arranged outside the housing (1).

4. The water pressure monitoring and alarm method for a self-excited wet dust collector according to claim 3 is characterized in that: The water flowing from the water collecting member (10) into the water conduit (11) is discharged outward through a drainage member (15) connected to the lower end of the water conduit (11) and provided with a drainage hole (15a).

5. The water pressure monitoring and alarm method for a self-excited wet dust collector according to claim 3 is characterized in that: The water flowing into the water conduit (11) from the water collecting member (10) is discharged to the outside through a valve (16) connected to the lower end of the water conduit (11).

6. The water pressure monitoring and alarm method for a self-excited wet dust collector according to claim 4 or 5, characterized in that: The connecting pipe (14) is formed by a main pipe (14a) having a boss (14a1) on the outside and one end extending out of the shell (1) and a secondary pipe (14b) arranged outside the shell (1) being threadedly connected, and the shell (1) is clamped between the boss (14a1) and the end of the secondary pipe (14b) at the protruding part of the main pipe (14a).

7. The water pressure monitoring and alarm method for a self-excited wet dust collector according to claim 1 or 2, characterized in that: A water vapor separation component (4) and a connecting plate (5) are fixed in the dust removal chamber (1b); the connecting plate (5) cooperates with the front inner wall and the left and right inner walls of the dust removal chamber (1b) to form a water storage tank (6) located below the water vapor separation component (4); a wind gap (7) is provided between the connecting plate (5) and the rear inner wall of the dust removal chamber (1b); in the above-mentioned step A, the water collecting component (10) is arranged above the wind gap (7) so as to collect water splashes passing upward through the wind gap (7).

8. The water pressure monitoring and alarm method for a self-excited wet dust collector according to claim 3 is characterized in that: In the above step C, the pressure is detected using a pressure sensor (12) with a reading unit of kilopascals.

9. The water pressure monitoring and alarm method of the self-excited wet dust collector according to claim 1 is characterized in that: In the above step D, the alarm (13) sounds an alarm in an audible and visual manner.

Images