Integrated gas-liquid feeding mechanism for sewage treatment

Abstract

The present application relates to sewage treatment technical field, specifically to a kind of integrated gas-liquid feeding mechanism for sewage treatment, including dumbbell type gas-liquid feeding mechanism box, middle part is pressure feed section, two ends are swing driving section, pressure feed section is symmetrically provided with gas transfer storehouse and liquid transfer storehouse, each storehouse is divided into two piston cavities, swing driving section is provided with swing storehouse, built-in circulating swing piece, two-way power component is through pressure feed section and drives circulating swing piece swing, piston block in piston cavity is connected with circulating swing piece by electric telescopic rod, reciprocating motion is realized, piston cavity side wall is provided with with one-way sealing baffle's inlet / outlet hole.The present application synchronously controls the dosing of gas and liquid by a single power source, has high integration, low operating cost, electric telescopic rod can independently adjust the initial position of piston block, realizes selective feeding, improves process control flexibility.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to an integrated gas-liquid feeding mechanism for wastewater treatment. Background Technology

[0002] In the wastewater treatment process, the addition of gases (such as oxygen, ozone, etc.) and liquids (such as chemical agents, carbon sources, etc.) needs to be scientifically controlled according to the treatment process stage and water quality targets.

[0003] The timing of gas addition is usually during the aerobic / anaerobic biological treatment stage. The gas added during the aerobic biological treatment stage is generally oxygen or ozone, which is used for continuous aeration and degradation of recalcitrant organic matter, such as pharmaceutical wastewater, while replacing chlorine and reducing disinfection byproducts.

[0004] Nitrogen and carbon dioxide are added during the anaerobic stage to maintain a strictly anaerobic environment.

[0005] The timing of liquid addition includes the pretreatment stage, biological treatment stage, and advanced treatment stage; the pretreatment stage usually involves adding acid and alkali solutions, coagulants, etc., to adjust the pH of the mixture and increase coagulation and sedimentation.

[0006] The liquids added during the biological treatment stage are carbon sources, nutrient salt solutions, etc., which are used to supplement carbon sources and promote nitrogen and phosphorus removal.

[0007] The deep treatment stage adds oxidants, adsorbents, etc., to treat organic matter that is difficult to degrade and to carry out adsorption and decolorization treatment.

[0008] The common methods for adding the aforementioned liquids or gases are to control them through various liquid and gas adding pump devices, such as gas adding devices based on air pumps and water pumps for liquid transfer. Regardless of the type of gas or liquid adding device used, each pump body uses an independent power system in actual design. Although the corresponding gas and liquid can be transferred, the independent system is not easy to control in actual operation, has high operating costs, is cumbersome to install, has low integration, and is not conducive to efficient operation.

[0009] In view of this, this technical solution designs an integrated gas-liquid feeding mechanism for wastewater treatment. Summary of the Invention

[0010] The purpose of this invention is to provide an integrated gas-liquid feeding mechanism for wastewater treatment to solve the problems mentioned in the background art.

[0011] To achieve the above objectives, the present invention provides the following technical solution:

[0012] An integrated gas-liquid feeding mechanism for wastewater treatment includes a gas-liquid feeding mechanism box. The gas-liquid feeding mechanism box is configured as a dumbbell-shaped structure with symmetrical sides and circular end caps installed symmetrically at both ends. The columnar area in the middle of the gas-liquid feeding mechanism box is configured as a pressure inlet / outlet section, which is used to transfer the gas and liquid to be fed into the wastewater treatment device to be added. The spherical areas at both ends of the gas-liquid feeding mechanism box are configured as swing drive sections, which are used to control the cyclic operation of the pressure inlet / outlet section.

[0013] The pressure inlet / outlet section has symmetrically arranged gas transfer chambers and liquid transfer chambers on both sides. The oscillating drive section has a spherical oscillating chamber. The gas and liquid transfer chambers are connected at their respective ends to the corresponding oscillating chambers. A bidirectional power assembly is also installed in the middle of the inner side of the pressure inlet / outlet section. Both ends of the bidirectional power assembly extend to the oscillating chambers and connect to the circulating oscillating components inside the oscillating chambers. That is, when the bidirectional power assembly rotates, it synchronously drives the circulating oscillating components at both ends to rotate. The gas transfer chamber has two sides divided into gas piston chamber I and gas piston chamber II. The liquid transfer chamber has two sides divided into liquid piston chamber I and liquid piston chamber II. Gas piston chamber I... Piston blocks are slidably connected inside piston chamber II, liquid piston chamber I, and liquid piston chamber II. The side of the piston block facing the inside of the swing chamber is connected to the circulating swinging component placed inside the swing chamber through an adjustable connector. That is, when the circulating swinging component swings back and forth, the adjustable connector controls the piston block to move back and forth in the gas piston chamber I, gas piston chamber II, liquid piston chamber I, and liquid piston chamber II. At the same time, inlet and outlet holes are opened on the side walls of gas piston chamber I, gas piston chamber II, liquid piston chamber I, and liquid piston chamber II, so as to realize the simultaneous gas and liquid feeding of the four chambers under the drive of a single set of bidirectional power components.

[0014] Simultaneously, the back-and-forth swinging of the cyclic swinging component controls the reverse flow of material entering and exiting the gas transfer chamber and the liquid transfer chamber. That is, when gas enters the gas transfer chamber, liquid exits the liquid transfer chamber, and vice versa. Furthermore, under the control of the adjustable connecting component, the initial height of the piston block in the corresponding chamber can be adjusted according to the feeding requirements of gas and liquid, without stopping the bidirectional power component. This achieves selective control of material entering and exiting each chamber, further improving the controllability and efficiency of the feeding mechanism.

[0015] Compared with the prior art, the beneficial effects of the present invention are: by driving the four gas and liquid chambers to operate synchronously with a single servo motor, multiple independent pump systems are replaced, reducing installation complexity and equipment costs, and achieving a high degree of integration.

[0016] The working status of each piston chamber can be independently adjusted by electric telescopic rods to achieve precise control of gas / liquid dosage and start / stop, adapting to the differentiated needs of each stage of wastewater treatment (such as aerobic / anaerobic).

[0017] By connecting the external output shaft, devices such as agitators can be extended to drive the device, thereby improving the power reuse rate and energy saving. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an integrated gas-liquid feeding mechanism for wastewater treatment.

[0019] Figure 2 This is a side view of an integrated gas-liquid feeding mechanism for wastewater treatment.

[0020] Figure 3 This is a top view schematic diagram of an integrated gas-liquid feeding mechanism for wastewater treatment.

[0021] Figure 4 This is a cross-sectional structural schematic diagram of an integrated gas-liquid feeding mechanism for wastewater treatment.

[0022] Figure 5 This is a partial cross-sectional schematic diagram of an integrated gas-liquid feeding mechanism for wastewater treatment.

[0023] Figure 6 for Figure 4 A magnified structural diagram of A in the middle.

[0024] Figure 7 for Figure 5 A schematic diagram of the enlarged structure of B in the diagram.

[0025] Figure 8 This is a partial structural diagram of the air inlet in an integrated gas-liquid feeding mechanism for wastewater treatment.

[0026] Figure 9 This is a partial structural diagram of the air outlet in an integrated gas-liquid feeding mechanism for wastewater treatment.

[0027] The components include: a gas-liquid feeding mechanism box 10, an end cover 11, a connecting column 12, an output shaft 13, a transmission belt 14, a control panel 15, a liquid inlet 16, a liquid outlet 17, an air inlet 18, an air outlet 19, a gas piston chamber I 20, a gas piston chamber II 21, a liquid piston chamber I 22, a liquid piston chamber II 23, an inward-turning sealing baffle 24, a swing shaft 25, an outward-turning sealing baffle 26, a servo motor 27, a drive shaft 28, a drive gear 29, a driven gear ring 30, a transmission rod 31, a rod shaft 32, an end swing rod I 33, a cross swing rod 34, an end swing rod II 35, a connecting shaft 36, a swing chamber 37, an arc-shaped swing slide rail 38, a ball 39, an electric telescopic rod 40, a connecting rod 41, a swing ball I 42, a swing ball groove 43, a piston block 44, a groove 45, and a swing ball II 46. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] Please see Figures 1-5 An integrated gas-liquid feeding mechanism for wastewater treatment includes a gas-liquid feeding mechanism box 10. The gas-liquid feeding mechanism box 10 is configured as a dumbbell-shaped structure with symmetrical sides and circular end caps 11 installed symmetrically at both ends. The columnar area in the middle of the gas-liquid feeding mechanism box 10 is configured as a pressure feeding and discharging section, which is used to transfer the gas and liquid to be fed into the wastewater treatment device to be added. The spherical areas at both ends of the gas-liquid feeding mechanism box 10 are configured as swing drive sections, which are used to control the cyclic operation of the pressure feeding and discharging section.

[0033] The pressure inlet / outlet section has symmetrically arranged gas transfer chambers and liquid transfer chambers on both sides. The swing drive section has a spherical swing chamber 37. The gas and liquid transfer chambers are connected at their respective ends to the corresponding swing chambers 37. A bidirectional power assembly is also installed in the middle of the inner side of the pressure inlet / outlet section. Both ends of the bidirectional power assembly extend to the swing chambers 37 and are connected to the circulating swing components inside the swing chambers 37. That is, when the bidirectional power assembly rotates, it synchronously drives the circulating swing components at both ends to rotate. The gas transfer chamber has gas piston chamber I 20 and gas piston chamber II 21 separated on both sides, and the liquid transfer chamber has liquid piston chamber I 22 and liquid piston chamber II 23 separated on both sides. Gas piston chamber I 20 and gas piston chamber II 21... Piston blocks 44 are slidably connected inside liquid piston chamber I 22 and liquid piston chamber II 23. The side of piston block 44 facing the inside of swing chamber 37 is connected to the circulating swing member placed inside swing chamber 37 through an adjustable connector. That is, when the circulating swing member swings back and forth, the adjustable connector controls the piston block 44 to move cyclically back and forth inside gas piston chamber I 20, gas piston chamber II 21, liquid piston chamber I 22 and liquid piston chamber II 23. At the same time, inlet and outlet holes are opened on the side walls of gas piston chamber I 20, gas piston chamber II 21, liquid piston chamber I 22 and liquid piston chamber II 23, so as to realize the simultaneous gas and liquid feeding of four chambers under the drive of a single set of bidirectional power components.

[0034] Meanwhile, the back-and-forth swinging of the cyclic swinging component controls the reverse flow of material entering and exiting the gas transfer chamber and the liquid transfer chamber. That is, when gas enters the gas transfer chamber, liquid exits the liquid transfer chamber, and vice versa. Furthermore, under the control of the adjustable connector, the initial height of the piston block 44 in the corresponding cavity can be adjusted according to the feeding requirements of gas and liquid, without stopping the bidirectional power component. This achieves selective control of material entering and exiting each cavity, further improving the controllability and efficiency of the feeding mechanism.

[0035] In this embodiment of the invention, a control panel 15 is installed on the outer wall of the gas-liquid feeding mechanism box 10. The control panel 15 has a built-in control system. By operating the control panel 15 in conjunction with the built-in control system, the bidirectional power component and the adjustable connector are controlled to achieve unified or selective transmission and transfer of gas and liquid.

[0036] The piston block 44 slides and seals with the inner walls of the gas piston chamber I 20, gas piston chamber II 21, liquid piston chamber I 22, and liquid piston chamber II 23, so that when the piston block 44 rises and falls, it generates continuously changing pressure and adsorption force inside the gas piston chamber I 20, gas piston chamber II 21, liquid piston chamber I 22, and liquid piston chamber II 23, thereby simulating the operation of a piston pump.

[0037] The inlet and outlet ports include an air inlet 18 and an air outlet 19 on the side walls of the gas piston chamber I 20 and the gas piston chamber II 21, and a liquid inlet 16 and a liquid outlet 17 on the side walls of the liquid piston chamber I 22 and the liquid piston chamber II 23. When the piston block 44 moves back and forth along the inside of the gas piston chamber I 20, the gas piston chamber II 21, the liquid piston chamber I 22, and the liquid piston chamber II 23, the pressure change between the piston block 44 and the bottom of the chamber is adjusted, thereby controlling the external gas and liquid to be absorbed and input along the air inlet 18 and the liquid inlet 16, and then the absorbed gas and liquid are compressed and output along the liquid outlet 17 and the air outlet 19.

[0038] Specifically, the internal structures of the liquid inlet 16 and the air inlet 18, and the liquid outlet 17 and the air outlet 19 are the same, such as... Figure 8 As shown, a set of inward-turning sealing baffles 24 are elastically connected inside the liquid inlet 16 and the air inlet 18 via a swing shaft 25. When the inward-turning sealing baffles 24 are in a free state, their inner side is controlled to seal and contact the transmission channels of the liquid inlet 16 and the air inlet 18, thus closing them. Then, when subjected to an inward adsorption force, the inward-turning sealing baffles 24 turn inward, and at this time, the transmission channels of the liquid inlet 16 and the air inlet 18 are opened, allowing external liquids and gases to be input into the gas piston chamber I 20, the gas piston chamber II 21, the liquid piston chamber I 22, and the liquid piston chamber II 23, thereby realizing automated input.

[0039] like Figure 9 As shown, a set of outward-folding sealing baffles 26 are elastically connected inside the liquid outlet 17 and the air outlet 19 via a swing shaft 25. When the outward-folding sealing baffles 26 are in a free state, their inner side is controlled to seal against the transmission channels of the liquid outlet 17 and the air outlet 19, closing them. Then, under outward pressure, the outward-folding sealing baffles 26 fold outward, opening the transmission channels of the liquid outlet 17 and the air outlet 19. The sucked-in liquid and gas are then output outward along the transmission channels. This cycle is repeated to achieve continuous feeding of gas and liquid.

[0040] The outer ends of the liquid inlet 16 and the air inlet 18 are connected to the liquid and gas sources to be added. The external parts of the liquid outlet 17 and the air outlet 19 are connected to the liquid and gas devices to be received in the sewage treatment process through the transmission pipe. Then, under the transmission of the gas-liquid feeding mechanism box 10, a highly efficient and selective gas and liquid feeding operation mode is realized.

[0041] In one embodiment of the present invention, multiple connecting columns 12 are evenly installed on the end wall of the end cap 11. That is, the connecting columns 12 are used to connect the end cap 11 to the various treatment tanks (pretreatment tank, biological treatment tank or deep treatment tank, etc.) in the sewage treatment device. The connecting columns 12 in the figure are only a partial part shown. The specific length, size and shape can be determined according to the actual installation requirements. They will not be described in detail here, nor will they be limited.

[0042] The types and amounts of gas and liquid inputs can be determined by referring to the different stages of wastewater treatment described in the background art. The length and type of the transmission pipes between the liquid outlet 17, the gas outlet 19 and the wastewater treatment device to be input can be determined according to the actual connection and distribution requirements. They can all be implemented using conventional structures and existing technologies, and will not be described or limited here.

[0043] As a preferred embodiment of the present invention, such as Figure 4 , Figure 5 , Figure 7 As shown, the bidirectional power assembly includes a transmission rod 31 rotatably disposed in the middle of the inner side of the pressure inlet and outlet section. Rod shafts 32 are symmetrically mounted at both ends of the transmission rod 31. The ends of the rod shafts 32 are connected to the circulating swing component. A set of driven gear rings 30 is installed in the middle of the transmission rod 31. A power chamber is opened in the inner wall of the gas-liquid feeding mechanism box 10 on one side of the driven gear rings 30. A servo motor 27 is fixedly installed on one side inside the power chamber. The output end of the servo motor 27 is connected to a drive shaft 28. A drive gear 29 is installed at the end of the drive shaft 28. One side of the drive gear 29 meshes with the driven gear ring 30. That is, by starting the servo motor 27, the drive shaft 28 is driven to rotate, and then the drive gear 29 is controlled to drive the driven gear ring 30 to rotate, thereby driving the transmission rod 31 to rotate.

[0044] Specifically, sealing plates are fitted at both ends of the transmission rod 31 extending into the swing chamber 37, which are used to keep the transmission rod 31 rotating stably in the middle of the pressure inlet and outlet section, while also keeping the swing chamber 37 and the area around the transmission rod 31 sealed and separated.

[0045] like Figures 4-6 As shown, the cyclic swing component includes a cross-shaped swing rod 34 cyclically oscillating in the middle of the swing chamber 37. The vertical ends of the cross-shaped swing rod 34 are rotatably connected to end swing rod I 33 and end swing rod II 35, respectively. End swing rod I 33 and end swing rod II 35 are inclined and parallel to each other. The end of end swing rod I 33 away from the cross-shaped swing rod 34 is connected to a rod shaft 32. The end of end swing rod II 35 away from the cross-shaped swing rod 34 is connected to a connecting shaft 36 rotatably located at the center of the gas-liquid feeding mechanism box 10. The other two ends of the cross-shaped swing rod 34 are connected to ball bearings 39. The ball bearings 39... An arc-shaped swing slide rail 38 is provided on the inner wall of the swing chamber 37. When the transmission rod 31 rotates, it controls the rod shafts 32 at both ends to drive the corresponding swing rod I 33 to swing. Then, under the connection of the cross swing rod 34, it controls the rolling balls 39 at both ends of each set of cross swing rods 34 to swing back and forth along their corresponding arc-shaped swing slide rail 38. At the same time, the piston block 44 is connected to the side wall of the cross swing rod 34 at the corresponding position of the opening of the piston block 44 through the adjustable connector. Then, under the back and forth movement of the rolling balls 39, the piston block 44 is driven to move back and forth in the corresponding chamber to realize the cyclic change of pressure.

[0046] Specifically, the adjustable connector includes an electric telescopic rod 40 located between the cross-shaped rocker arm 34 and the piston block 44. Both ends of the electric telescopic rod 40 are connected to connecting rods 41, and both ends of the connecting rods 41 are respectively connected to a rocker ball I 42 and a rocker ball II 46. A rocker ball groove 43 is formed in the side wall of the cross-shaped rocker arm 34 corresponding to rocker ball I 42. A groove 45 is formed inside the piston block 44 corresponding to rocker ball II 46, and a rocker ball groove 43 is also formed in the center of the groove 45. Both ends of the rocker ball I 42 are in a limited rolling connection with the corresponding rocker ball groove 43, i.e., the rocker ball I 42 and the electric... With the connection of the telescopic rod 40 and the connecting rod 41, when the cross lever 34 swings, the piston block 44 is controlled to move cyclically in its corresponding cavity. Then, according to the need for material to enter or exit the gas piston cavity I 20, gas piston cavity II 21, liquid piston cavity I 22, and liquid piston cavity II 23, the length of the electric telescopic rod 40 in the corresponding cavity is adjusted, thereby adjusting the initial height of the piston block 44 at the bottom of the cavity, thereby controlling the pressure change between the piston block 44 and the bottom of the cavity, and thus controlling whether external gas and liquid enter or exit, achieving selective feeding.

[0047] In a preferred embodiment of the present invention, the outer end of the connecting shaft 36 extends to the outside of the end cover 11 and is connected to an output shaft 13. A pulley is mounted on the output shaft 13, and the pulley can be connected to an external transmission rod or other structure via a transmission belt 14, thereby further expanding the utilization of the rotational power of the servo motor 27. In the case of sewage treatment process, it is necessary to stir and mix the sewage in different stages during the treatment process. Therefore, the kinetic energy transmitted by the connecting shaft 36 can be extended to the stirring stage, thereby further improving the energy utilization rate of the feeding mechanism, reducing the operating cost and increasing the operating efficiency.

[0048] The working principle of this invention is as follows: During idle periods in this device, all the aforementioned driving components (representing power elements, electrical devices, and compatible power supplies) are connected via wires. The electrical connections are completed in sequence between the working components. The detailed connection methods are well-known in the art. The following mainly describes the working principle and process, without further explanation of the electrical control.

[0049] Power start: Servo motor 27 drives drive gear 29, which in turn drives driven gear ring 30 and transmission rod 31 to rotate.

[0050] Swing transmission: The transmission rod 31 pushes the swing rod I 33 through the rod shaft 32, which drives the cross swing rod 34 to swing back and forth in the swing chamber 37. The rolling ball 39 rolls along the arc swing slide rail 38 to ensure swing stability.

[0051] Piston motion: The cross rocker arm 34 drives the piston block 44 to reciprocate within the piston chamber via the electric telescopic rod 40 and the connecting rod 41;

[0052] During the intake / liquid stage: When the piston block 44 moves away from the bottom of the chamber, the negative pressure inside the chamber causes the inward sealing baffle 24 to open, and gas / liquid is drawn in through the feed hole;

[0053] Exhaust / Liquid Stage: When piston block 44 is pressed against the bottom of the cavity, the positive pressure inside the cavity causes the outward-facing sealing baffle 26 to open, and the gas / liquid is discharged through the discharge hole.

[0054] Selective control: The initial position of the piston block 44 is adjusted via the electric telescopic rod 40.

[0055] During elongation, the piston stroke increases, and the feed rate increases;

[0056] When the piston block is compressed to its limit, it stops, and the chamber stops feeding.

[0057] It should be understood that in this application, all rotating, sliding, meshing, belt-driven and other moving parts are well lubricated and not prone to slippage or wear, and each part is provided with a corresponding protective shell. However, in the accompanying drawings of this application, the connection state of each moving part is not shown. It should also be understood that all parts in this application are made of metal or plastic materials with suitable strength in the relevant field to ensure that their structural rigidity meets the actual requirements.

[0058] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An integrated gas-liquid feeding mechanism for wastewater treatment, characterized in that, include The dumbbell-shaped gas-liquid feeding mechanism box (10) has a pressure feeding and discharging section in the middle and swing driving sections at both ends. The dumbbell-shaped gas-liquid feeding mechanism box (10) has circular end caps (11) symmetrically installed at both ends. The pressure inlet / outlet section has symmetrically arranged gas transfer chambers and liquid transfer chambers on both sides. The swing drive section has a spherical swing chamber (37) inside. The gas transfer chamber and liquid transfer chamber are respectively connected to the corresponding swing chamber (37) at both ends. The pressure inlet / outlet section is also provided with a bidirectional power assembly in the middle of the inner side. The two ends of the bidirectional power assembly extend to the swing chamber (37) and are connected to the circulating swing component inside the swing chamber (37). The gas transfer chamber is divided into gas piston chamber I (20) and gas piston chamber II (21) on both sides. The liquid transfer chamber is divided into gas piston chamber I (20) and liquid piston chamber II (21) on both sides. Separated by liquid piston chamber I (22) and liquid piston chamber II (23), gas piston chamber I (20), gas piston chamber II (21), liquid piston chamber I (22), and liquid piston chamber II (23) are all slidably connected with piston blocks (44). The side of the piston block (44) facing the inside of the swing chamber (37) is swayed and connected to the circulating swinging component placed inside the swing chamber (37) through an adjustable connector. Inlet and outlet holes are opened on the side walls of gas piston chamber I (20), gas piston chamber II (21), liquid piston chamber I (22), and liquid piston chamber II (23). The bidirectional power assembly includes a transmission rod (31) rotatably disposed in the middle of the inner side of the pressure inlet and outlet section. The transmission rod (31) is symmetrically mounted with rod shafts (32) at both ends. The ends of the rod shafts (32) are connected to the circulating swinging component. A set of driven gear rings (30) is installed in the middle of the transmission rod (31). A power chamber is opened in the inner wall of the gas-liquid feeding mechanism box (10) on one side of the driven gear rings (30). A servo motor (27) is fixedly installed on one side inside the power chamber. The output end of the servo motor (27) is connected to a drive shaft (28). A drive gear (29) is installed at the end of the drive shaft (28). One side of the drive gear (29) meshes with the driven gear ring (30). The circulating swing component includes a cross swing rod (34) circulating in the middle of the swing chamber (37). The vertical ends of the cross swing rod (34) are respectively rotatably connected to end swing rod I (33) and end swing rod II (35). The end swing rod I (33) and end swing rod II (35) are inclined and parallel to each other. The end of the end swing rod I (33) away from the cross swing rod (34) is connected to the rod shaft (32). The end of the end swing rod II (35) away from the cross swing rod (34) is connected to the connecting shaft (36) rotatably set at the center of the gas-liquid feeding mechanism box (10). The other two ends of the cross swing rod (34) are connected to the ball (39). The inner wall of the swing chamber (37) corresponding to the ball (39) is provided with an arc swing slide rail (38). The piston block (44) is oscillatingly connected to the side wall of the cross swing rod (34) at the corresponding position of the opening of the piston block (44) through an adjustable connector. The adjustable connector includes an electric telescopic rod (40) located between the cross rocker arm (34) and the piston block (44). Both ends of the electric telescopic rod (40) are connected to connecting rods (41). Both ends of the connecting rods (41) are connected to swing ball I (42) and swing ball II (46) respectively. The side wall of the cross rocker arm (34) corresponding to the swing ball I (42) is provided with a swing ball groove (43). The piston block (44) corresponding to the swing ball II (46) is provided with a groove (45). The middle part of the groove (45) is also provided with a swing ball groove (43). Both ends of the swing ball I (42) are connected to the corresponding swing ball groove (43) in a limited rolling connection. The outer end of the connecting shaft (36) extends to the outside of the end cover (11) and is connected to an output shaft (13). A pulley is installed on the output shaft (13), and the pulley can be connected to an external transmission rod structure via a transmission belt (14).

2. The integrated gas-liquid feeding mechanism for wastewater treatment according to claim 1, characterized in that, The inlet and outlet ports include an air inlet (18) and an air outlet (19) on the side walls of the gas piston chamber I (20) and the gas piston chamber II (21), and a liquid inlet (16) and a liquid outlet (17) on the side walls of the liquid piston chamber I (22) and the liquid piston chamber II (23).

3. The integrated gas-liquid feeding mechanism for wastewater treatment according to claim 2, characterized in that, The internal structure of the liquid inlet (16) and air inlet (18), the liquid outlet (17) and air outlet (19) are the same. The liquid inlet (16) and air inlet (18) are connected to a set of inward-turning sealing baffles (24) through the swing shaft (25). When the inward-turning sealing baffles (24) are in a free state, they control the inner side to be in sealed contact with the transmission channel of the liquid inlet (16) and air inlet (18).

4. The integrated gas-liquid feeding mechanism for wastewater treatment according to claim 2, characterized in that, The liquid outlet (17) and air outlet (19) are connected by a set of outward-turning sealing baffles (26) through a swing shaft (25). When the outward-turning sealing baffles (26) are in a free state, they control their inner side to be in sealed contact with the transmission channels of the liquid outlet (17) and air outlet (19).

5. The integrated gas-liquid feeding mechanism for wastewater treatment according to claim 1, characterized in that, Multiple connecting columns (12) are evenly installed on the end wall of the end cap (11), that is, the end cap (11) is connected to the treatment boxes of each stage in the sewage treatment device by means of the connecting columns (12).

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