An exhaust assisting device for a dry pump vacuum pump

Abstract

The present invention discloses an exhaust exhaust assisting device for a dry pump vacuum pump, comprising a dust collection box and a top box fixedly installed on the top thereof, a filtering mechanism for filtering exhaust gas particles is arranged inside the dust collection box, an adjustment plate is slidingly arranged inside the dust collection box, and a plurality of groups of parallel filter plates are vertically inserted on the adjustment plate; the present invention changes the purification area below the dust collection box by controlling the horizontal height of the adjustment plate inside the dust collection box, thereby achieving the effect of real-time regulation of the purification area area according to the exhaust gas flow rate, not only improving the dust removal efficiency, but also responding to abnormal increase in exhaust gas flow by synchronously opening two control valves, ensuring stable operation of the dust removal system, and synchronously allowing the horizontal brush to brush the filter strips horizontally for cleaning, and the vertical brush to brush the filter plate longitudinally for cleaning, thereby achieving multi-directional cleaning of the filter plate, and jointly improving the cleaning effect of the filter plate.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and more particularly to an exhaust assisting device for a dry pump vacuum pump. Background Art

[0002] During normal production in a workshop, vacuum pumps are used in various processes. The main components of the exhaust gas discharged by the vacuum pump are dimethyl carbonate, ethyl methyl carbonate, ethylene carbonate, methane, ethane and a small amount of vacuum pump oil. These exhaust gases contain a large amount of organic solvents, which will not only pollute the environment but also cause harm to the human body when discharged into the air. In order to avoid the impact of these exhaust gases on the environment, the exhaust gases are usually filtered and purified to assist in exhaust.

[0003] Traditional filtration and purification methods mostly involve filtering first, then directly burning the organic solvent through combustion, converting it into carbon dioxide and water. Currently, the purification area of dust particle filtering equipment is fixed, but because the exhaust gas flow rate is fluctuating, the equipment cannot adjust the purification area in real time based on the exhaust gas flow rate. Furthermore, when faced with abnormally increased exhaust gas, the equipment cannot respond in time, making it difficult to ensure dust removal effectiveness.

[0004] Moreover, the dust particle filter equipment is often cleaned directly by applying a brush to the filter plate. This method often results in poor cleaning effect of the filter plate, and it is impossible to improve the cleaning effect of the filter plate by performing multi-directional cleaning on the filter plate to ensure stable operation of the dust removal effect.

[0005] In view of the above technical defects, a solution is now provided. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides an exhaust assisting device for a dry pump vacuum pump.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: an exhaust gas exhaust device for a dry vacuum pump, comprising a dust removal box and a top box fixedly mounted on the top of the dust removal box, wherein a filtering mechanism for filtering exhaust gas particles is provided inside the dust removal box;

[0008] The filtering mechanism includes an adjustment plate slidably connected to the inside of the dust removal box, a plurality of parallel filter plates are vertically inserted on the adjustment plate, a connecting rod is fixedly provided on the top wall of the adjustment plate between two filter plates, the top of the connecting rod is movable and extends into the top box, and the tops of the plurality of connecting rods are commonly connected to a transverse rod;

[0009] The outer side of the filter plate is provided with a cleaning mechanism for performing multi-directional cleaning on the filter plate.

[0010] Furthermore, a plurality of groups of filter strips are arranged on the filter plate, and the plurality of groups of filter strips are arranged parallel to each other.

[0011] Furthermore, threaded rod 2 is threadedly connected to the outer walls on both sides of the transverse rod, a driving motor is fixedly provided at the bottom of the threaded rod 2, and the top of the threaded rod 2 is rotatably connected to the top box through a bearing.

[0012] Furthermore, the cleaning mechanism includes fixed plates symmetrically arranged on both sides of the filter plate, the top of the fixed plates is fixedly connected to the regulating plate, and longitudinal plates are fixedly arranged on the opposite bottom side walls of the two fixed plates.

[0013] Furthermore, a longitudinal brush is provided on the side wall of the longitudinal plate, and the longitudinal brush is in contact with the outer wall of the filter plate.

[0014] Furthermore, a slide rail is provided on the bottom wall of the regulating plate above the longitudinal plate, and a plurality of reciprocating threaded rods 1 fixedly connected to each other are provided above the longitudinal plate, and a transverse block is threadedly connected to the outer wall of the reciprocating threaded rod 1.

[0015] Furthermore, the top of the transverse block is fixedly connected to a limit plate, and the limit plate is slidably matched with the slide rail. A transverse brush is fixedly provided on the side wall of the transverse block close to the filter plate, and the transverse brush is in contact with the outer wall of the filter plate.

[0016] Furthermore, the ends of the two reciprocating threaded rods on both sides are connected to a rotating shaft, and a friction wheel is fixedly provided on the outer wall of the rotating shaft. The friction wheel is transmission-matched with the filter plate opposite to it. The end of the rotating shaft is rotatably provided with a fixed rod through a bearing, and the top of the fixed rod is connected to the regulating plate.

[0017] Furthermore, a dust removal port is provided on the bottom wall of the dust removal box between the two filter plates, and a receiving member is provided below the dust removal port;

[0018] The receiving component includes a limit frame connected to the bottom wall of the dust removal box, the limit frame corresponds to the dust removal port, and a receiving drawer is slidably arranged in the limit frame.

[0019] Furthermore, the input end of the dust removal box is provided with two air inlet pipes, the input ends of the two air inlet pipes are commonly connected to an air inlet tee, and a control valve 1 is provided on the outer wall of the air inlet pipe; the output end of the dust removal box is provided with two air outlet pipes, the output ends of the two air outlet pipes are commonly connected to an air outlet tee, and a control valve 2 is provided on the outer wall of the air outlet pipe.

[0020] Technical effects and advantages of the present invention:

[0021] 1. The present invention controls the driving motor to rotate the threaded rod, so that the horizontal rod moves upward, driving multiple groups of connecting rods to move upward synchronously, and controlling the control plate to move upward a certain distance as needed to expand the purification area below the dust removal box. By controlling the horizontal height of the control plate inside the dust removal box, the purification area below the dust removal box is changed, thereby achieving the effect of real-time regulation of the purification area according to the exhaust gas flow rate. In response to abnormally increased exhaust gas, only one of the two control valves needs to be opened synchronously. The two control valves cooperate with each other, which not only improves the dust removal efficiency, but also can respond by synchronously opening the two control valves when the exhaust gas flow rate increases abnormally, thereby ensuring the stable operation of the dust removal system.

[0022] 2. In the present invention, during the movement of the regulating plate, the friction wheel contacts the outer wall of the filter plate, so that the rotating shaft and the reciprocating threaded rod rotate synchronously, and the limiting plate is limited by the slide rail to realize the reciprocating movement of the horizontal block, allowing the horizontal brush to brush the filter strips horizontally for cleaning. At the same time, the longitudinal brush is always in contact with the outer wall of the filter plate, thereby realizing longitudinal brushing and cleaning of the filter plate, and cooperating with the horizontal brush to realize multi-directional cleaning of the filter plate, thereby improving the cleaning effect of the filter plate and ensuring the dust removal efficiency of the device.

[0023] 3. The present invention changes the purification area below the dust removal box by controlling the horizontal height of the control plate inside the dust removal box, thereby achieving the effect of real-time regulation of the purification area area according to the exhaust gas flow rate, which not only improves the dust removal efficiency, but also can respond when the exhaust gas flow rate increases abnormally by synchronously opening the two control valves to ensure the stable operation of the dust removal system, and synchronously allow the horizontal brush to brush the filter strips horizontally and the vertical brush to brush the filter plate longitudinally to achieve multi-directional cleaning of the filter plate, improve the cleaning effect of the filter plate, and cooperate with the real-time regulation of the purification area to jointly ensure the dust removal efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention.

[0025] Figure 2 This is a front view of the internal structure of the dust removal box in the present invention.

[0026] Figure 3 It is a three-dimensional diagram of the filtering mechanism in the present invention.

[0027] Figure 4 It is a front view of the internal structure of the top box in the present invention.

[0028] Figure 5 It is a three-dimensional diagram of the cleaning mechanism of the present invention.

[0029] Figure 6 It is a three-dimensional diagram of the reciprocating threaded rod and the transverse block in the present invention.

[0030] Figure 7 It is a structural schematic diagram of the slide rail in the present invention.

[0031] Figure 8 It is a three-dimensional diagram of the receiving drawer and the limiting frame in the present invention.

[0032] The accompanying drawings are marked as follows: 1. Dust removal box; 3. Top box; 4. Air inlet pipe; 5. Air inlet tee; 6. Filter mechanism; 61. Control plate; 62. Filter plate; 63. Filter mesh strips; 64. Connecting rod; 65. Transverse rod; 66. Threaded rod 2; 7. Cleaning mechanism; 71. Slide rail; 72. Limit plate; 73. Transverse block; 74. Reciprocating threaded rod 1; 75. Transverse brush; 76. Friction wheel; 77. Fixed rod; 78. Longitudinal brush; 79. Fixed plate; 710. Longitudinal plate; 8. Air outlet tee; 9. Dust removal port; 10. Limit frame; 11. Receiving drawer; 12. Air outlet pipe. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Example 1: Figure 1-8 As shown, the exhaust exhaust device for a dry vacuum pump proposed in this embodiment includes a dust removal box 1 and a top box 3 fixedly mounted on the top thereof. A filtering mechanism 6 for filtering exhaust particles is provided inside the dust removal box 1.

[0035] like Figure 2-4 As shown, the filtering mechanism 6 includes a regulating plate 61 slidably arranged inside the dust removal box 1, and a plurality of sets of parallel filter plates 62 are vertically inserted on the regulating plate 61. A connecting rod 64 is fixedly provided on the top wall of the regulating plate 61 between the two filter plates 62. The top of the connecting rod 64 is movable and extends into the top box 3, and the tops of the multiple connecting rods 64 are commonly connected to a transverse rod 65 vertically connected thereto.

[0036] By controlling the horizontal height of the control plate 61 inside the dust removal box 1, the purification area below the dust removal box 1 is changed, so as to achieve the effect of real-time regulation of the purification area according to the exhaust gas flow rate. In addition, for abnormally increased exhaust gas, only two control valves need to be opened synchronously. The two control valves cooperate with each other, which not only improves the dust removal efficiency, but also can respond to abnormal increases in exhaust gas flow by synchronously opening the two control valves.

[0037] When the position of the control plate 61 inside the dust box 1 is changed, the final position thereof does not contact the filter strips 63, thereby reducing the phenomenon that the exhaust gas enters the upper and lower areas of the dust box 1;

[0038] like Figure 2-4 As shown, a plurality of filter strips 63 are provided on the filter plate 62, and the plurality of filter strips 63 are arranged parallel to each other; a cleaning mechanism 7 for multi-directional cleaning is provided on the outer side of the filter plate 62;

[0039] like Figure 2-4 As shown, threaded rod 2 66 is threadedly connected to the outer walls of both sides of the transverse rod 65, a driving motor is fixedly installed at the bottom of the threaded rod 2 66, and the top of the threaded rod 2 66 is rotatably connected to the top box 3 through a bearing.

[0040] It should be explained here that: the control drive motor causes the second threaded rod 66 to rotate, thereby causing the transverse rod 65 to move upward, driving the multiple groups of connecting rods 64 to move upward synchronously, and then controlling the control plate 61 to move upward a certain distance as needed, thereby expanding the purification area below the dust removal box 1;

[0041] Example 2: Figure 2-3 5-7, this embodiment proposes an exhaust assisting device for a dry pump vacuum pump, which is improved on the basis of embodiment 1. The cleaning mechanism 7 includes fixed plates 79 symmetrically arranged on both sides of the filter plate 62. The top of the fixed plates 79 is fixedly connected to the control plate 61. The two fixed plates 79 are fixedly provided with longitudinal plates 710 on the opposite bottom side walls. The side walls of the longitudinal plates 710 are provided with longitudinal brushes 78. The longitudinal brushes 78 are in contact with the outer wall of the filter plate 62.

[0042] The longitudinal brush 78 is always in contact with the outer wall of the filter plate 62, thereby achieving dynamic cleaning of the filter plate 62 by the longitudinal brush 78, and cooperating with the transverse brush 75 to achieve multi-directional cleaning of the filter plate 62;

[0043] like Figure 2-3 As shown in Figures 5-7, a slide rail 71 is provided on the bottom wall of the regulating plate 61 located above the longitudinal plate 710. A plurality of mutually fixedly connected reciprocating threaded rods 74 are provided above the longitudinal plate 710. A transverse block 73 is threadedly connected to the outer wall of the reciprocating threaded rod 74. The top of the transverse block 73 is fixedly connected to a limit plate 72. The limit plate 72 slides in cooperation with the slide rail 71. A transverse brush 75 is fixedly provided on the side wall of the transverse block 73 near the filter plate 62, and the transverse brush 75 is in contact with the outer wall of the filter plate 62.

[0044] like Figure 2-3As shown in 5-7, the ends of the two reciprocating threaded rods 74 on both sides are connected to a rotating shaft, and a friction wheel 76 is fixedly provided on the outer wall of the rotating shaft. The friction wheel 76 is in transmission cooperation with the filter plate 62 opposite to it. The end of the rotating shaft is rotatably provided with a fixing rod 77 through a bearing, and the top of the fixing rod 77 is connected to the regulating plate 61;

[0045] The fixing rod 77 mainly serves to limit the position of the multiple sets of reciprocating threaded rods 74, and the multiple reciprocating threaded rods 74 are fixedly connected at their ends in sequence, presenting the appearance of a rod;

[0046] It should be explained here that the friction wheel 76 contacts the outer wall of the filter plate 62, so that the rotating shaft and the reciprocating threaded rod 74 rotate synchronously, and the limiting plate 72 is limited by the slide rail 71 to achieve the reciprocating movement of the transverse block 73, allowing the transverse brush 75 to clean the filter strips 63 horizontally;

[0047] Since a rubber ring is provided on the outer wall of the friction wheel 76, the friction between the friction wheel 76 and the filter plate 62 can be increased, thereby ensuring the rotation of the friction wheel 76;

[0048] like Figure 1-3 As shown in FIG. 8 , a dust removal port 9 is provided on the bottom wall of the dust removal box 1 between the two filter plates 62 , and a receiving member is provided below the dust removal port 9 ;

[0049] The receiving member includes a limit frame 10 connected to the bottom wall of the dust removal box 1, the limit frame 10 corresponds to the dust removal port 9, and a receiving drawer 11 is slidably provided in the limit frame 10;

[0050] It should be explained here that the cleaned dust falls into the interior of the receiving drawer 11 through the dust removal port 9. When cleaning the dust inside the dust removal box 1, the dust particles can be removed by simply pulling the receiving drawer 11 outward.

[0051] When the receiving drawer 11 is located inside the limiting frame 10, the connection between the receiving drawer 11 and the limiting frame 10 is always sealed, which prevents the exhaust gas inside the dust removal box 1 from overflowing, thereby ensuring the safety of the device when purifying the exhaust gas;

[0052] The end of the receiving drawer 11 is open, refer to Figure 8 , thereby facilitating the discharge of dust particles inside the receiving drawer 11;

[0053] like Figure 1-2 As shown, the input end of the dust removal box 1 is provided with two air intake pipes 4, the input ends of the two air intake pipes 4 are commonly connected to an air intake tee pipe 5, and a control valve 1 is provided on the outer wall of the air intake pipe 4;

[0054] The output end of the dust removal box 1 is provided with two air outlet pipes 12 , the output ends of the two air outlet pipes 12 are commonly connected to the air outlet three-way pipe 8 , and a control valve 2 is provided on the outer wall of the air outlet pipe 12 .

[0055] It should be explained here that: the two control valves 1 on the intake pipe 4 are opened synchronously to deal with the abnormal increase in exhaust gas flow. Under normal conditions, the control valve 1 on the lower intake pipe 4 is opened;

[0056] Similarly, the two control valves 2 on the outlet pipe 12 are opened synchronously to deal with the phenomenon of abnormal increase in exhaust gas flow. Under normal conditions, the control valve 2 on the lower outlet pipe 12 is opened;

[0057] The present invention is combined with Example 1 and Example 2 to know that:

[0058] By controlling the horizontal height of the control plate 61 inside the dust removal box 1, the purification area below the dust removal box 1 is changed, so as to achieve the effect of real-time regulation of the purification area according to the exhaust gas flow rate. In addition, for abnormally increased exhaust gas, only one of the two control valves needs to be opened synchronously. The two control valves cooperate with each other, which not only improves the dust removal efficiency but also ensures the stable operation of the dust removal system.

[0059] In the process of movement of the regulating plate 61, the friction wheel 76 contacts the outer wall of the filter plate 62, realizing the reciprocating movement of the horizontal block 73, and allowing the horizontal brush 75 to dynamically clean the filter strips 63; the longitudinal brush 78 always contacts the outer wall of the filter plate 62, realizing the longitudinal brush 78 dynamic cleaning of the filter plate 62, and cooperating with the horizontal brush 75 to realize multi-directional cleaning of the filter plate 62, thereby jointly improving the cleaning effect of the filter plate 62 and ensuring the dust removal efficiency of the device;

[0060] Working process:

[0061] Step 1: First, the exhaust gas of the dry vacuum pump enters the intake pipe 4 below through the intake tee 5, and then enters the dust removal box 1 through the intake pipe 4. It is filtered by the filter strips 63 on the multiple groups of horizontally arranged filter plates 62 to remove dust particles in the exhaust gas. The purified exhaust gas is discharged through the exhaust pipe 12 below and then discharged through the exhaust tee 8 for further processing.

[0062] Step 2: When the exhaust gas flow rate of the intake tee pipe 5 increases abnormally: synchronously open the control valves 1 on the two intake pipes 4, allowing the exhaust gas to synchronously enter the upper and lower areas of the dust removal box 1 for purification, and finally be synchronously discharged through the two outlet pipes 12;

[0063] When the exhaust gas flow rate of the intake tee pipe 5 increases slightly: the driving motor is controlled to rotate the threaded rod 2 66, so that the transverse rod 65 moves upward, driving the multiple groups of connecting rods 64 to move upward synchronously, and then controlling the control plate 61 to move upward a certain distance as needed to expand the purification area below the dust removal box 1. By controlling the horizontal height of the control plate 61 inside the dust removal box 1, the purification area below the dust removal box 1 is changed, so as to achieve the effect of real-time regulation of the purification area according to the exhaust gas flow rate, and for the abnormal increase in exhaust gas, it is only necessary to synchronously open the two control valves. The two cooperate with each other, not only improving the dust removal efficiency, but also responding to the abnormal increase in exhaust gas flow by synchronously opening the two control valves, thereby ensuring the stable operation of the dust removal system;

[0064] Step 3: During step 2, the friction wheel 76 contacts the outer wall of the filter plate 62, causing the rotating shaft and the reciprocating threaded rod 74 to rotate synchronously, and the limiting plate 72 is limited by the slide rail 71, realizing the reciprocating movement of the transverse block 73, allowing the transverse brush 75 to horizontally brush 75 and clean the filter strips 63;

[0065] At the same time, the longitudinal brush 78 is always in contact with the outer wall of the filter plate 62, thereby realizing dynamic cleaning of the filter plate 62 by the longitudinal brush 78, and cooperating with the transverse brush 75 to realize multi-directional cleaning of the filter plate 62, thereby jointly improving the cleaning effect of the filter plate 62.

[0066] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An exhaust assisting device for a dry pump vacuum pump, comprising a dust removal box (1) and a top box (3) fixedly mounted on the top of the dust removal box, characterized in that: The dust removal box (1) is provided with a filter mechanism (6) for filtering exhaust gas particles inside; the filter mechanism (6) includes a control plate (61) slidably connected to the inside of the dust removal box (1); a plurality of groups of parallel filter plates (62) are vertically inserted on the control plate (61); a connecting rod (64) is fixedly provided on the top wall of the control plate (61) between two filter plates (62); the top of the connecting rod (64) is movably extended into the top box (3), and the tops of the plurality of connecting rods (64) are commonly connected to a transverse rod (65); The outer side of the filter plate (62) is provided with a cleaning mechanism (7) for performing multi-directional cleaning thereon; the cleaning mechanism (7) comprises fixed plates (79) symmetrically arranged on both sides of the filter plate (62); the top of the fixed plates (79) is fixedly connected to the regulating plate (61); longitudinal plates (710) are fixedly arranged on the opposite bottom side walls of the two fixed plates (79); longitudinal brushes (78) are arranged on the side walls of the longitudinal plates (710); the longitudinal brushes (78) are fitted with the outer wall of the filter plate (62); a slide rail (71) is provided on the bottom wall of the regulating plate (61) above the longitudinal plates (710); a plurality of mutually fixedly connected reciprocating threaded rods (74) are provided above the longitudinal plates (710); a transverse block (73) is threadedly connected to the outer wall of the reciprocating threaded rod (74); The top of the transverse block (73) is fixedly connected to a limit plate (72), and the limit plate (72) is slidably matched with the slide rail (71). A transverse brush (75) is fixedly provided on the side wall of the transverse block (73) close to the filter plate (62), and the transverse brush (75) is in contact with the outer wall of the filter plate (62); The ends of the two reciprocating threaded rods (74) on both sides are connected to a rotating shaft, and a friction wheel (76) is fixedly provided on the outer wall of the rotating shaft. The friction wheel (76) is in transmission cooperation with the filter plate (62) opposite thereto. A fixing rod (77) is rotatably provided at the end of the rotating shaft through a bearing, and the top of the fixing rod (77) is connected to the regulating plate (61).

2. The exhaust assisting device for a dry vacuum pump according to claim 1, characterized in that: The filter plate (62) is provided with a plurality of groups of filter strips (63), and the plurality of groups of filter strips (63) are arranged parallel to each other.

3. The exhaust assisting device for a dry vacuum pump according to claim 1, characterized in that: The outer walls on both sides of the transverse rod (65) are both threadedly connected with a second threaded rod (66), the bottom of the second threaded rod (66) is fixedly provided with a driving motor, and the top of the second threaded rod (66) is rotatably connected to the top box (3) through a bearing.

4. The exhaust assisting device for a dry vacuum pump according to claim 1, characterized in that: The dust removal box (1) is provided with a dust removal port (9) on the bottom wall between the two filter plates (62), and a receiving member is provided below the dust removal port (9); The receiving member comprises a limit frame (10) connected to the bottom wall of the dust removal box (1), the limit frame (10) corresponds to the dust removal port (9), and a receiving drawer (11) is slidably arranged in the limit frame (10).

5. The exhaust assisting device for a dry vacuum pump according to claim 1, characterized in that: The dust removal box (1) is provided with two air inlet pipes (4) at the input end, the input ends of the two air inlet pipes (4) are commonly connected to an air inlet tee pipe (5), and a control valve 1 is provided on the outer wall of the air inlet pipe (4); the dust removal box (1) is provided with two air outlet pipes (12) at the output end, the output ends of the two air outlet pipes (12) are commonly connected to an air outlet tee pipe (8), and a control valve 2 is provided on the outer wall of the air outlet pipe (12).

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