Differential pressure device of dust remover

Abstract

The invention provides a pressure difference device of a dust remover, which not only can give an alarm to remind a worker to detect the dust remover in time when the pressure difference exceeds a preset value, but also can filter air in an exhaust pipe to prevent impurities from entering a detection device; comprising a fixing mechanism; the device further comprises a detection mechanism, a calibration mechanism, an alarm mechanism and a filtering mechanism, the detection mechanism is installed on the fixing mechanism and detects the pressure difference, the calibration mechanism is installed on the detection mechanism and enables the detector to be reset conveniently, and the alarm mechanism is installed on the fixing mechanism and gives an alarm when the pressure difference is too large. And the filtering mechanism is mounted on the detection mechanism and is used for detecting gas in the exhaust pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of dust collectors, and in particular to a pressure difference device for a dust collector. Background Art

[0002] A dust collector is a device that separates dust from flue gas. The performance of a dust collector is expressed by the amount of gas that can be processed, the resistance loss when the gas passes through the dust collector, and the dust removal efficiency.

[0003] An existing dust collector pressure differential device, such as a dust collector chamber pressure differential detector disclosed in the utility model patent with application number 202120822344.6, has a main structure including two connecting tubes, one end surface of the connecting tube is fixedly installed with a mounting tube, and the other end surface of the connecting tube is slidably installed with a connecting tube, one end of the connecting tube is fixedly connected to an arc-shaped detection tube, the surface of the arc-shaped detection tube is provided with scale lines, and the other end surface of the connecting tube is provided with a through hole; when in use, the mounting tube is installed in the two chambers of the dust collector, which is conducive to alignment installation, so that the two ends of the arc-shaped detection tube can be aligned to the two chambers respectively, and air of different pressures passes through the mounting tube and the connecting hole, can enter the connecting tube from the through hole, and then enter the two end positions of the arc-shaped detection tube, so that the pressure difference between the two chambers can be detected and indicated by the scale lines.

[0004] However, most existing pressure differential devices require staff to observe at all times, and it is difficult to automatically issue an alarm when the pressure differential is too large. In addition, some impurities may still remain inside the exhaust pipe, which in turn affects the accuracy of pressure differential detection. Summary of the Invention

[0005] Based on the technical problems raised above, the present invention can issue an alarm when the pressure difference exceeds a predetermined value, reminding the staff to inspect the dust collector in time, and filter the air in the exhaust pipe to prevent impurities from entering the detection device.

[0006] The technical means adopted in the present invention are as follows:

[0007] A pressure differential device for a dust collector comprises a fixing mechanism; further comprising a detecting mechanism, a calibration mechanism, an alarm mechanism and a filtering mechanism, wherein the detecting mechanism is mounted on the fixing mechanism and detects the pressure differential, the calibration mechanism is mounted on the detecting mechanism and facilitates resetting the detector, the alarm mechanism is mounted on the fixing mechanism and sounds an alarm when the pressure differential is too large, and the filtering mechanism is mounted on the detecting mechanism and detects the gas in the exhaust pipe; the fixing mechanism is fixed in a suitable position, the detecting mechanism is leveled and reset using the calibration mechanism, and then the detecting mechanism is connected to the inside of the air inlet pipe and the exhaust pipe of the dust collector, the filtering mechanism filters the air in the exhaust pipe, the detecting mechanism detects the pressure differential in the dust collector, and when the difference exceeds a preset value, the alarm mechanism sounds an alarm to remind the staff to inspect the dust collector.

[0008] Preferably, the fixing mechanism includes a back plate, a positioning bar and two sets of magnetic blocks. The positioning bar is installed on the back of the back plate, and the two sets of magnetic blocks are installed on the back of the back plate. By setting the positioning bar, the back plate can be conveniently fixed in the appropriate position of the dust collector, and the two sets of magnetic blocks can adsorb the dust collector to ensure the fixing effect.

[0009] Preferably, the detection mechanism includes two groups of link ends, two groups of pipe clamps and a U-shaped detection tube. The two groups of link ends are respectively connected to the exhaust pipe and the interior of the air inlet pipe of the dust collector. The two groups of pipe clamps fix the two groups of link ends on the front of the back plate. The U-shaped detection tube is fixedly installed on the front of the back plate and is connected to the interior of the two groups of link ends. The air in the air inlet pipe and exhaust pipe of the dust collector enters the U-shaped detection tube through the two groups of link ends, and the U-shaped detection tube detects the air pressure entering from both sides.

[0010] Preferably, the calibration mechanism includes two sets of three-way connectors, a connecting pipe and a valve. The two sets of three-way connectors are respectively installed on the two sets of link ends. The connecting pipe is installed between the two sets of three-way connectors, and the valve is installed on the connecting pipe. Open the valve to allow the airflow in the two sets of link ends to be exchanged through the connecting pipe, thereby resetting and calibrating the U-shaped detection tube.

[0011] Preferably, the alarm mechanism includes a knob, a damper, a connecting plate, a support rod, a sensor, an alarm and a buzzer. The knob is rotatably installed on the back plate, the damper is installed inside the back plate, the connecting plate is installed on the knob, the support rod is installed on the connecting plate, the sensor is installed on the support rod, the alarm is installed on the front of the back plate, and the buzzer is installed on the front of the back plate; the staff rotates the knob, and the knob drives the connecting plate and the support rod to rotate, so that the sensor is located at the specified scale of the U-shaped detection tube. As the predetermined value of the pressure difference, the knob rotation angle is maintained by setting the damper. When the pressure difference detected by the U-shaped detection tube reaches the specified scale, the sensor triggers the alarm and buzzer to sound an alarm, reminding the staff to come and check the dust collector.

[0012] Preferably, the filtering mechanism includes a fixed half shell, a hinge, a movable half shell, a buckle and a filter element. The fixed half shell is installed on the connecting end connected to the exhaust pipe, the hinge is installed on the fixed half shell, the movable half shell is installed on the hinge, the buckle is installed on the movable half shell, and the filter element is installed inside the fixed half shell and the movable half shell; the air flow passes through the filter element to filter out impurities in the exhaust pipe to prevent impurities from entering the U-shaped detection tube. After long-term use, open the buckle and the movable half shell, take out and replace the filter element to prevent the filter element from being blocked by impurities and affecting ventilation.

[0013] Preferably, the filter element is a sintered metal filter element; the sintered metal filter element has high filtering accuracy, long service life, and corrosion resistance, is suitable for working conditions with high dust concentration, and can effectively filter out impurities in the exhaust pipe to prevent impurities from affecting detection accuracy.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the fixing mechanism is fixed in a suitable position, the detection mechanism is leveled and reset using the calibration mechanism, and then the detection mechanism is connected to the inside of the air inlet pipe and exhaust pipe of the dust collector, the filtering mechanism filters the air in the exhaust pipe, and the detection mechanism detects the pressure difference in the dust collector. When the difference exceeds the preset value, the alarm mechanism sounds an alarm to remind the staff to inspect the dust collector. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 It is an axonometric structural diagram of the present invention;

[0017] Figure 2 It is a schematic diagram of the axonometric structure of the fixing mechanism of the present invention;

[0018] Figure 3 It is a front view structural diagram of the detection mechanism, calibration mechanism and alarm mechanism of the present invention;

[0019] Figure 4 It is a partially enlarged cross-sectional isometric structural diagram of the alarm mechanism of the present invention;

[0020] Figure 5 It is a partially enlarged sectional axonometric structural diagram of the filtering mechanism of the present invention.

[0021] Markings in the accompanying drawings: 01, fixing mechanism; 11, back plate; 12, positioning bar; 13, magnetic block; 02, detection mechanism; 21, connecting end; 22, pipe clamp; 23, U-shaped detection tube; 03, calibration mechanism; 31, three-way joint; 32, connecting pipe; 33, valve; 04, alarm mechanism; 41, knob; 42, damper; 43, connecting plate; 44, support rod; 45, sensor; 46, alarm light; 47, buzzer; 05, filtering mechanism; 51, fixed half shell; 52, hinge; 53, movable half shell; 54, buckle; 55, filter element. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​described in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0026] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0027] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0028] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0029] Example 1

[0030] A pressure differential device for a dust collector of the present invention comprises a fixing mechanism 01; further comprising a detection mechanism 02, a calibration mechanism 03, an alarm mechanism 04 and a filtering mechanism 05, wherein the detection mechanism 02 is mounted on the fixing mechanism 01 and detects the pressure differential, the calibration mechanism 03 is mounted on the detection mechanism 02 and facilitates resetting the detector, the alarm mechanism 04 is mounted on the fixing mechanism 01 and issues an alarm when the pressure differential is too large, the filtering mechanism 05 is mounted on the detection mechanism 02 and detects the gas in the exhaust pipe; the fixing mechanism 01 comprises a back plate 11, a positioning bar 12 and two sets of magnetic blocks 13, the positioning bar 12 is mounted on the back side of the back plate 11, and the two sets of magnetic blocks 13 are both mounted on the back side of the back plate 11 The detection mechanism 02 includes two sets of linking ends 21, two sets of pipe clamps 22 and a U-shaped detection tube 23. The two sets of linking ends 21 are respectively connected to the exhaust pipe and the intake pipe of the dust collector. The two sets of pipe clamps 22 fix the two sets of linking ends 21 on the front of the back plate 11. The U-shaped detection tube 23 is fixedly installed on the front of the back plate 11 and is connected to the inside of the two sets of linking ends 21. The calibration mechanism 03 includes two sets of three-way joints 31, a connecting pipe 32 and a valve 33. The two sets of three-way joints 31 are respectively installed on the two sets of linking ends 21. The connecting pipe 32 is connected and installed between the two sets of three-way joints 31. The valve 33 is installed on the connecting pipe 32. The alarm mechanism 04 includes a knob 41, a damper 42 , connecting plate 43, support rod 44, sensor 45, alarm 46 and buzzer 47, the knob 41 is rotatably installed on the back plate 11, the damper 42 is installed in the back plate 11, the connecting plate 43 is installed on the knob 41, the support rod 44 is installed on the connecting plate 43, the sensor 45 is installed on the support rod 44, the alarm 46 is installed on the front of the back plate 11, and the buzzer 47 is installed on the front of the back plate 11; when it is working, first, by setting the positioning strip 12, it is convenient to fix the back plate 11 in the appropriate position of the dust collector, and make the two sets of magnetic blocks 13 adsorb the dust collector to ensure the fixing effect, the staff turns the knob 41, and the knob 41 drives the connecting plate 43 and the support rod 44 Rotate so that the sensor 45 is located at the specified scale of the U-shaped detection tube 23 as the predetermined value of the pressure difference. By setting the damper 42 to maintain the rotation angle of the knob 41, the air in the dust collector intake pipe and exhaust pipe enters the U-shaped detection tube 23 through the two sets of link ends 21. Open the valve 33 to exchange the airflow in the two sets of link ends 21 through the connecting tube 32, thereby resetting and calibrating the U-shaped detection tube 23, and then close the valve 33. The U-shaped detection tube 23 detects the air pressure entering from both sides. When the pressure difference detected by the U-shaped detection tube 23 reaches the specified scale, the sensor 45 triggers the alarm 46 and the buzzer 47 to sound an alarm, reminding the staff to come and check the dust collector.

[0031] Example 2

[0032] like Figures 1 to 5As shown, a dust collector pressure differential device of the present invention is based on Example 1; the filtering mechanism 05 includes a fixed half shell 51, a hinge 52, a movable half shell 53, a buckle 54 and a filter element 55, the fixed half shell 51 is installed on the link end 21 connected to the exhaust pipe, the hinge 52 is installed on the fixed half shell 51, the movable half shell 53 is installed on the hinge 52, the buckle 54 is installed on the movable half shell 53, and the filter element 55 is installed inside the fixed half shell 51 and the movable half shell 53; the filter element 55 also includes a sintered metal filter element; when it is working, first, by setting the positioning strip 12, the back plate 11 is conveniently fixed to the appropriate position of the dust collector, and the two sets of magnetic blocks 13 adsorb the dust collector to ensure the fixing effect, the staff turns the knob 41, and the knob 41 drives the connecting plate 43 and the support rod 44 to rotate, so that the sensor 45 is located at the specified mark of the U-shaped detection tube 23. The air in the air inlet pipe and the exhaust pipe of the dust collector enter the U-shaped detection tube 23 through the two sets of connecting ends 21, and the air flow passes through the filter element 55 to filter out impurities in the exhaust pipe to prevent impurities from entering the U-shaped detection tube 23. After long-term use, open the buckle 54 and move the half shell 53, take out and replace the filter element 55 to prevent the filter element 55 from being blocked by impurities and affecting ventilation. Open the valve 33 to exchange the air in the two sets of connecting ends 21 through the connecting pipe 32, thereby resetting and calibrating the U-shaped detection tube 23, and then close the valve 33. The U-shaped detection tube 23 detects the air pressure entering from both sides. When the pressure difference detected by the U-shaped detection tube 23 reaches the specified scale, the sensor 45 triggers the alarm 46 and the buzzer 47 to sound an alarm, reminding the staff to come and check the dust collector.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dust collector pressure differential device, comprising a fixing mechanism (01); characterized in that: The invention also includes a detection mechanism (02), a calibration mechanism (03), an alarm mechanism (04) and a filtering mechanism (05). The detection mechanism (02) is mounted on the fixing mechanism (01) and detects the pressure difference. The calibration mechanism (03) is mounted on the detection mechanism (02) and facilitates resetting the detector. The alarm mechanism (04) is mounted on the fixing mechanism (01) and issues an alarm when the pressure difference is too large. The filtering mechanism (05) is mounted on the detection mechanism (02) and detects the gas in the exhaust pipe.

2. A dust collector pressure difference device according to claim 1, characterized in that: The fixing mechanism (01) comprises a back plate (11), a positioning bar (12) and two groups of magnetic blocks (13), wherein the positioning bar (12) is mounted on the back side of the back plate (11), and the two groups of magnetic blocks (13) are both mounted on the back side of the back plate (11).

3. A dust collector pressure difference device according to claim 2, characterized in that: The detection mechanism (02) comprises two groups of linking ends (21), two groups of pipe clamps (22) and a U-shaped detection tube (23). The two groups of linking ends (21) are respectively connected to the interior of the exhaust pipe and the intake pipe of the dust collector. The two groups of pipe clamps (22) fix the two groups of linking ends (21) on the front of the back plate (11). The U-shaped detection tube (23) is fixedly installed on the front of the back plate (11) and is connected to the interior of the two groups of linking ends (21).

4. A dust collector pressure difference device according to claim 3, characterized in that: The calibration mechanism (03) comprises two sets of three-way connectors (31), a connecting pipe (32) and a valve (33). The two sets of three-way connectors (31) are respectively installed on the two sets of link terminals (21). The connecting pipe (32) is connected and installed between the two sets of three-way connectors (31). The valve (33) is installed on the connecting pipe (32).

5. A dust collector pressure difference device according to claim 2, characterized in that: The alarm mechanism (04) comprises a knob (41), a damper (42), a connecting plate (43), a support rod (44), a sensor (45), an alarm (46) and a buzzer (47). The knob (41) is rotatably mounted on the back plate (11), the damper (42) is mounted in the back plate (11), the connecting plate (43) is mounted on the knob (41), the support rod (44) is mounted on the connecting plate (43), the sensor (45) is mounted on the support rod (44), the alarm (46) is mounted on the front of the back plate (11), and the buzzer (47) is mounted on the front of the back plate (11).

6. A dust collector pressure difference device according to claim 3, characterized in that: The filter mechanism (05) comprises a fixed half shell (51), a hinge (52), a movable half shell (53), a buckle (54) and a filter element (55). The fixed half shell (51) is mounted on a link end (21) connected to an exhaust pipe, the hinge (52) is mounted on the fixed half shell (51), the movable half shell (53) is mounted on the hinge (52), the buckle (54) is mounted on the movable half shell (53), and the filter element (55) is mounted inside the fixed half shell (51) and the movable half shell (53).

7. A dust collector pressure difference device according to claim 6, characterized in that: The filter element (55) is also comprised of a sintered metal filter element.

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