A protein analyzer reaction waste liquid defoaming device

Abstract

The present application relates to water pollution treatment device technical field, specifically to a kind of protein analyzer reaction waste liquid defoaming device, including defoaming pipe, defoaming paddle, actuator and drive unit, the defoaming paddle rotation is installed in the defoaming pipe, the drive unit is connected with the actuator, the actuator is connected with the defoaming paddle, and the defoaming paddle is rotated;The paddle is rotationally arranged on the defoaming paddle, and each paddle is connected with the actuator;It also includes negative pressure piece, negative pressure piece is arranged in the defoaming pipe, and the negative pressure piece is connected with the actuator, and the actuator removes the air of the defoaming pipe by the negative pressure piece;One side of the defoaming pipe is provided with liquid inlet pipe, and the other end of the defoaming pipe is connected with liquid outlet pipe, waste liquid enters through liquid inlet pipe, and after defoaming by defoaming paddle, it is discharged from liquid outlet pipe, solve the technical problem that the difficulty of breaking bubble caused by the fixed angle of paddle in the conventional mechanical defoaming mode, influence the final defoaming effect.

Description

Technical Field

[0001] This invention relates to the field of water pollution treatment equipment technology, specifically to a defoaming device for reaction waste liquid from a protein analyzer. Background Technology

[0002] In the field of clinical testing and laboratory analysis, protein analyzers are commonly used to determine the content of specific proteins in blood or body fluids. The reagents used in the testing process typically contain high concentrations of proteins and surfactants. The waste liquid generated after the reaction easily forms a large amount of stable foam, leading to reduced flow rate and poor circulation in the waste liquid discharge pipeline, and even causing foam overflow. This not only affects the stability of continuous instrument operation but may also cause laboratory environmental pollution and pose potential biosafety risks. Therefore, removing foam from reaction waste liquid is a critical problem that must be solved in many stages. Currently, the most widely used mechanical defoaming method in the industry is the use of a defoaming paddle device. This device typically includes a drive component (such as a motor) and a defoaming paddle driven by it. The defoaming paddle is equipped with several blades at a certain angle. During operation, the drive component drives the defoaming paddle to rotate as a whole, and the blades cut into the foam layer. Through the shearing and impact action of the blades, the foam is broken up, thus achieving the purpose of defoaming. However, this traditional defoaming method has obvious limitations: First, the defoaming effect mainly relies on the unidirectional shear force generated by the fixed-angle blades when rotating, resulting in a single foam breaking mode. For complex foam systems with high viscosity and strong stability, the foam breaking efficiency is often low, requiring a long processing time. Second, when the fixed-angle blades rotate, the interaction angle between them and the foam remains unchanged, which easily forms a fixed flow field on the liquid surface, resulting in a low breaking effect.

[0003] Therefore, the inventors have proposed a defoaming device for the reaction waste liquid of a protein analyzer to solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this invention is to provide a defoaming device for reaction waste liquid of a protein analyzer, so as to solve the technical problem that the fixed rotation angle of the paddle in traditional mechanical defoaming methods affects the defoaming effect.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A defoaming device for reaction waste liquid of a protein analyzer includes a defoaming tube, a defoaming paddle, an actuator, and a driving unit. The defoaming paddle is rotatably installed inside the defoaming tube. The driving unit is connected to the actuator, and the actuator is connected to the defoaming paddle to drive the defoaming paddle to rotate. At least two blades are rotatably mounted on the defoaming paddle, and each blade is connected to the actuator to drive the blade to rotate. It also includes a negative pressure component, which is disposed inside the defoaming tube and connected to the actuator. The actuator uses the negative pressure component to draw away the air from the defoaming tube. The defoaming tube has an inlet pipe on one side and an outlet pipe at the other end. Waste liquid enters through the inlet pipe, is defoamed by the defoaming paddle, and is discharged through the outlet pipe.

[0006] Furthermore, the defoaming paddle includes a rotating shaft and a fixed base, and the number of paddle blades is four. Each paddle blade is evenly distributed around the fixed base, and each paddle blade is rotatably connected to the fixed base. The rotating shaft has a hollow structure. A first support frame and a second support frame are provided inside the defoaming tube. The rotating shaft is rotatably mounted on the second support frame. One end of the rotating shaft is connected to a driven bevel gear, and the other end of the rotating shaft is fixedly connected to the fixed base.

[0007] Furthermore, a sliding shaft is coaxially provided on the rotating shaft, the rotating shaft is sleeved on the sliding shaft, one end of the sliding shaft passes through the fixed seat and is connected to the sliding seat, a hinge rod is hinged on the sliding seat, and the free end of the hinge rod is hinged to the corresponding blade. The other end of the sliding shaft is connected to a reciprocating pusher.

[0008] Furthermore, the reciprocating pusher includes a pusher cylinder fixedly mounted on the first support frame, an air cavity is formed inside the pusher cylinder, a piston ring is slidably connected to the air cavity, and the end of the sliding shaft extends into the pusher cylinder and is fixedly connected to the piston ring. The push cylinder is provided with a first hydraulic pipe that communicates with the air chamber.

[0009] Furthermore, the drive unit includes a drive housing, a drive mounting base, and a drive motor. The drive housing and the drive mounting base are fixedly mounted on the defoaming tube, and the drive motor is fixedly mounted on the drive mounting base. A drive shaft is rotatably connected to the defoaming tube. One end of the drive shaft is connected to the actuator, and the other end of the drive shaft is connected to a driving bevel gear, which meshes with the driven bevel gear.

[0010] Furthermore, the actuator includes an actuator housing, a first piston cylinder and a second piston cylinder fixed on the actuator housing, a first piston rod is slidably connected in a sealed manner in the first piston cylinder, a second piston rod is slidably connected in a sealed manner in the second piston cylinder, a hydraulic chamber is formed in the first piston cylinder, the hydraulic chamber is filled with hydraulic oil, and the hydraulic chamber is connected to the first hydraulic pipe. The second piston cylinder has an air extraction chamber, and an air inlet pipe and an air outlet pipe connected to the air extraction chamber are connected to the second piston cylinder. A first one-way valve is provided at the air inlet pipe, and a second one-way valve is provided at the air outlet pipe. An actuation unit is provided inside the actuation housing, and the actuation unit is used to drive the first piston rod and the second piston rod to move.

[0011] Furthermore, the actuation unit includes a first shaft, a first connecting block, a second connecting block, and a second shaft. The first shaft and the second shaft are rotatably mounted on the actuation housing. One end of the first shaft is coaxially connected to the drive motor, and the other end of the first shaft is connected to the first connecting block. The first connecting block is connected to the second connecting block, and the second connecting block is connected to the second shaft. The second shaft passes through the defoaming tube and is coaxially and fixedly connected to the drive shaft. A first connecting rod is hinged to the first shaft, and the first connecting rod extends into the first piston cylinder and is hinged to the first piston column. A second connecting rod is hinged to the second shaft, and the second connecting rod extends into the second piston cylinder and is hinged to the second piston column.

[0012] Furthermore, the negative pressure component is a negative pressure plate, the negative pressure plate has a negative pressure cavity, the bottom of the negative pressure plate has a negative pressure hole, the negative pressure hole is connected to the negative pressure cavity, and the air inlet pipe extends into the defoaming pipe and is connected to the negative pressure cavity.

[0013] Furthermore, four vibration rods are evenly fixedly connected around the fixed base, each vibration rod being located in the internal space of the corresponding paddle; at least one vibration component is provided on the vibration rod, the vibration component including an elastic element and a movable impactor, one end of the elastic element being connected to the vibration rod, and the other end being connected to the movable impactor; When the blade rotates in one direction, the inner surface of the blade contacts the movable impactor and squeezes the elastic element, causing the elastic element to store energy. When the blades rotate in opposite directions, the movable impactor impacts the inner surface of the blades under the action of the elastic member, causing the blades to vibrate.

[0014] Furthermore, the defoaming tube is equipped with an inclined baffle and a wire mesh demister.

[0015] The beneficial effects of this invention are: This invention integrates three core functions—dynamic adjustment of the defoaming propeller blade angle of attack, negative pressure-assisted defoaming, and rotation of the defoaming propeller body—into a compact actuation system driven by a single drive motor through a mechanical linkage design. The actuator cleverly decomposes the continuous rotation of the drive shaft into the synchronous reciprocating motion of the first and second piston rods. The first piston rod, controlled by a hydraulic circuit, pushes the piston inside the cylinder, which, via a sliding shaft and hinged rod mechanism, dynamically adjusts the angle of attack of all blades while the defoaming propeller revolves at high speed, achieving a leap from single-direction shearing to multi-mode combined defoaming. The second piston rod, in turn… As a piston pump, the step pump provides continuous suction power to the negative pressure plate and the push cylinder air chamber in the same circuit, actively creating a stable local low-pressure zone above the mechanical shearing area. Adopting a highly integrated design, it breaks the limitations of traditional defoaming devices where the rotation, angle adjustment, and negative pressure functional modules are independent and require multiple power sources. This not only simplifies the structure and reduces manufacturing costs and failure rates, but more importantly, it achieves synergy and efficiency multiplication of the three mechanisms of mechanical shearing, angle agitation, and negative pressure physical foam breaking in time and space, thereby achieving efficient, rapid, and thorough removal of highly stable protein foam.

[0016] This invention introduces a self-excited vibration generation mechanism based on the energy of angle-of-attack variation, which further enhances the defoaming effect from a microscopic physical level. The vibration rod and its elastic components installed on the fixed base directly convert the mechanical compression and release process generated when the blade periodically changes the angle of attack into high-frequency impact vibration on the inner surface of the blade, realizing the internal recycling of energy. The energy required for vibration comes entirely from the angle-of-attack adjustment action necessary for the operation of the device itself, without the need for any additional vibration motor or energy source, achieving a unity of energy saving and functional enhancement, and ultimately ensuring the defoaming effect of waste liquid discharge.

[0017] Other advantages, objectives, and features of this application will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from practice of this application. The objectives and other advantages of this application may be realized and obtained through the detailed embodiments described below. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the defoaming device for the reaction waste liquid of the protein analyzer of the present invention; Figure 2 This is a partial structural schematic diagram of the defoaming device for the reaction waste liquid of the protein analyzer of the present invention; Figure 3 This is a cross-sectional schematic diagram of the defoaming device for the reaction waste liquid of the protein analyzer of the present invention; Figure 4This is a schematic diagram of the drive mounting base and actuator in the defoaming device for the reaction waste liquid of the protein analyzer of the present invention; Figure 5 This is a schematic diagram of the internal connection structure of the defoaming device for the reaction waste liquid of the protein analyzer of the present invention; Figure 6 In this invention Figure 5 A cross-sectional view; Figure 7 In this invention Figure 6 Partial structural diagram; Figure 8 In this invention Figure 7 A schematic diagram of the split structure; Figure 9 This is a cross-sectional schematic diagram of the paddle of the defoaming device for the reaction waste liquid of the protein analyzer of the present invention; Figure 10 This is a cross-sectional schematic diagram of the actuator of the defoaming device for the reaction waste liquid of the protein analyzer of the present invention; Figure 11 This is a partial structural schematic diagram of the actuator of the defoaming device for the reaction waste liquid of the protein analyzer of the present invention.

[0019] The components include: defoaming pipe 1, liquid inlet pipe 11, liquid outlet pipe 12, first support frame 13, second support frame 14, defoaming paddle 2, rotating shaft 21, fixed seat 22, driven bevel gear 23, sliding shaft 24, sliding seat 25, hinge rod 26, actuator 3, actuator housing 31, first piston cylinder 32, second piston cylinder 33, first piston column 34, second piston column 35, hydraulic chamber 36, air inlet pipe 37, air outlet pipe 38, actuation unit 39, first shaft 391, first connecting block 392, and second connecting block. 393, Second shaft; 394, First connecting rod; 395, Second connecting rod; 396, Drive unit; 4, Drive housing; 41, Drive mounting base; 42, Drive motor; 43, Drive shaft; 44, Active bevel gear; 45, Paddle; 5, Negative pressure component; 6, Negative pressure chamber; 61, Negative pressure hole; 62, Reciprocating pusher; 7, Push cylinder; 71, Air chamber; 72, Piston ring; 73, First hydraulic pipe; 74, Vibration rod; 81, Vibration assembly; 82, Elastic component; 821, Movable impactor; 822, Inclined baffle; 91, Wire mesh demister; 92. Detailed Implementation

[0020] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0021] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0022] This embodiment proposes a defoaming device for reaction waste liquid from a protein analyzer, such as... Figures 1 to 11 As shown, the device includes a defoaming tube 1, a defoaming paddle 2, an actuator 3, and a drive unit 4. The defoaming paddle 2 is rotatably installed inside the defoaming tube 1. The drive unit 4 is connected to the actuator 3, and the actuator 3 is connected to the defoaming paddle 2 to drive the defoaming paddle 2 to rotate. At least two blades 5 are rotatably mounted on the defoaming paddle 2, and the angle of attack of each blade 5 can be changed. The device also includes a negative pressure component 6, which is located inside the defoaming tube 1 and is connected to the actuator 3. The actuator 3 uses the negative pressure component 6 to remove air from the defoaming tube 1. An inlet pipe 11 is provided on the right side of the defoaming tube 1, through which the reaction waste liquid slowly flows into the defoaming tube 1. The height of the reaction waste liquid inside the defoaming tube 1 is approximately two-thirds of the overall height of the defoaming tube 1.

[0023] The left side of the defoaming pipe 1 is connected to the liquid outlet pipe 12. Waste liquid enters through the liquid inlet pipe 11, is defoamed by the defoaming paddle 2, and is discharged from the liquid outlet pipe 12.

[0024] In this embodiment, the waste liquid enters the defoaming pipe 1 from the inlet pipe 11. The drive unit 4 is activated and drives the actuator 3 to work. The actuator 3 drives the defoaming paddle 2 to rotate inside the defoaming pipe 1. At the same time, it drives at least two blades 5 installed on the defoaming paddle 2 to change their angle of attack. This dynamically changes the rotation angle of the blades 5 during rotation, and the change in angle changes the shearing and impact direction to break the foam. At the same time, the actuator 3 also drives the negative pressure component 6 installed in the defoaming pipe 1 to work, which draws away the air above the defoaming pipe 1 to form a local low-pressure environment. This increases the pressure difference between the inside and outside of the foam film, accelerates its rupture, and makes it easier for the gas in the broken bubbles to escape. Finally, the waste liquid, after being defoamed by mechanical shearing and negative pressure assistance, is smoothly discharged from the outlet pipe 12.

[0025] In a preferred embodiment, the defoaming paddle 2 includes a rotating shaft 21 and a fixed base 22, and the number of paddle blades 5 is preferably four; however, it should be understood that the scope of protection of the present invention is not limited thereto, and the number of paddle blades 5 can be adjusted according to actual needs, for example, set to three, five or more; each paddle blade 5 is evenly distributed around the fixed base 22, and each paddle blade 5 is rotatably connected to the fixed base 22.

[0026] In one possible implementation, in order to enable the negative pressure component 6 to provide a more stable suction force and avoid negative pressure pulsation caused by the reciprocating motion of the second piston column 35, a pressure stabilizing chamber (not shown in the figure) is also connected to the air inlet pipe 37. The pressure stabilizing chamber is provided with an elastic diaphragm to absorb air pressure pulsation, thereby forming a continuous and stable negative pressure environment in the negative pressure chamber 61 and improving the stability of the auxiliary defoaming.

[0027] The rotating shaft 21 has a hollow structure. The defoaming tube 1 is equipped with a first support frame 13 and a second support frame 14. The rotating shaft 21 is rotatably mounted on the second support frame 14. The left end of the rotating shaft 21 is connected to the driven bevel gear 23, and the right end of the rotating shaft 21 is fixedly connected to the fixed seat 22. The power output from the drive unit 4 is transmitted to the driven bevel gear 23, thereby driving the hollow shaft 21 to rotate under the support of the second support frame 14. The rotation of the shaft 21 directly drives the fixed seat 22 at the end to rotate synchronously, causing the four blades 5 evenly distributed around the fixed seat 22 to rotate with the fixed seat 22. In this embodiment, the rotation speed of the shaft 21 is preferably 50-100 r / min. The blades 5 are made of hydrophobic material (such as polytetrafluoroethylene). When the blades 5 rotate, they generate an overall shearing and stirring effect on the foam in the defoaming tube 1. At the same time, the design of the hollow shaft 21 not only reduces the weight, but more importantly, it provides the necessary installation and movement space for control components such as the sliding shaft 24 used to adjust the angle of the blades 5, thus preparing the structure for realizing the defoaming action with dynamic angle of attack change.

[0028] In a preferred embodiment, a sliding shaft 24 is coaxially arranged on the rotating shaft 21, and the rotating shaft 21 is sleeved on the sliding shaft 24. The right end of the sliding shaft 24 passes through the fixed seat 22 and is connected to the sliding seat 25. A hinge rod 26 is hinged on the sliding seat 25. Preferably, there are four hinge rods 26. The free end of the hinge rod 26 is eccentrically hinged to the corresponding blade 5. The left end of the sliding shaft 24 is connected to a reciprocating pusher 7. Further, the reciprocating pusher 7 includes a push cylinder 71 fixedly installed on the first support frame 13. An air chamber 72 is formed inside the push cylinder 71. A piston ring 73 is slidably connected and sealed inside the air chamber 72. The left end of the sliding shaft 24 extends into the push cylinder 71 and is fixedly connected to the piston ring 73. A first hydraulic pipe 74 communicating with the air chamber 72 is provided on the push cylinder 71.

[0029] In this embodiment, when externally controllable hydraulic oil is pumped into or released from the air chamber 72 of the push cylinder 71 through the first hydraulic pipe 74, it drives the internally sealed piston ring 73 to move left and right along the inner wall of the push cylinder 71. Since the piston ring 73 is fixedly connected to the left end of the sliding shaft 24, the linear motion is directly and rigidly transmitted to the sliding shaft 24, which is coaxially nested inside the rotating shaft 21, causing the sliding shaft 24 to follow the piston ring 73 and generate axial displacement. The axial movement of the sliding shaft 24, through the portion of its right end that passes through the fixed seat 22, pushes the sliding seat 25 at the end to move axially in sync. The translation of the sliding seat 25... The action, through the hinge rod 26 (the hinge point with the blade 5 is set to an eccentric position), efficiently converts the axial linear motion into the rotational motion of the blade 5 around the connection point with the fixed seat 22, thereby forcibly and precisely driving all four blades 5 to undergo a uniform change in angle of attack, realizing centralized, synchronous and continuously adjustable dynamic control of the angle of attack of all blades 5; at the same time, it also allows the defoaming blade 2 to superimpose a periodic or adaptive "tumbling" effect on the basis of rotational shearing, improving the foam peeling and breaking effect, especially suitable for processing high viscosity and high stability protein waste foam.

[0030] It should be noted that, from the perspective of fluid mechanics and foam breakage mechanism, the fixed angle of attack blades in traditional technology can only provide a constant shear force in a single direction when rotating, resulting in a rigid foam breakage mode that is often inefficient for protein foams with complex structures and high viscoelasticity. However, the periodic change of the angle of attack causes the contact angle, penetration velocity, and direction of action between the leading edge of the blade 5 and the foam to continuously change during rotation. Thus, in a single rotational motion, the blade can alternately contact the foam to produce a combination of multiple foam breakage modes such as "cutting" and "tearing". This not only more effectively destroys foam films of different sizes and stability, but also prevents the foam from being simply pushed towards the container wall without breaking due to a fixed flow field. Secondly, the change of the angle of attack directly disturbs the local flow field around the blade 5, breaking the regular vortices or laminar flow that are easily formed at a fixed angle of attack, creating an unstable, highly turbulent region, forcing the bubbles dispersed in the liquid to collide, merge, increase in size, and then break, thus improving the thoroughness of defoaming. Moreover, the dynamic angle of attack can synergize with other defoaming methods such as rotation speed and negative pressure. The low-pressure zone generated by suction facilitates the penetration of negative pressure suction, accelerating the dissipation of gas within the bubbles. Therefore, the dynamic adjustment of the angle of attack fundamentally solves the core defect of "single action mode" in traditional mechanical defoaming, achieving adaptive and multi-dimensional physical destruction of the foam layer, which is especially suitable for protein analyzer reaction waste liquid with complex composition and high stability.

[0031] In a preferred embodiment, the drive unit 4 includes a drive housing 41, a drive mounting base 42, and a drive motor 43. The drive housing 41 and the drive mounting base 42 are fixedly mounted on the outer wall of the defoaming pipe 1, and the drive motor 43 is fixedly mounted on the drive mounting base 42. A drive shaft 44 is rotatably connected to the defoaming pipe 1. The top end of the drive shaft 44 is connected to the actuator 3, and the bottom end of the drive shaft 44 is connected to a driving bevel gear 45, which meshes with the driven bevel gear 23.

[0032] In this embodiment, the drive shaft 44 is fixedly connected to the active bevel gear 45, which meshes with the driven bevel gear 23 fixedly installed at the end of the defoaming paddle 2 shaft 21, converting the rotational motion in a 90-degree direction and transmitting it to the shaft 21 of the defoaming paddle 2, thereby driving the entire defoaming paddle 2 to generate a main rotational motion around the axis within the defoaming tube 1; the drive housing 41 and the drive mounting base 42 together provide a sealed protection and a stable mounting base for the drive motor 43 and the drive shaft 44.

[0033] In a preferred embodiment, the actuator 3 includes an actuator housing 31, a first piston cylinder 32 and a second piston cylinder 33 fixed on the actuator housing 31. A first piston rod 34 is slidably connected inside the first piston cylinder 32, and a second piston rod 35 is slidably connected inside the second piston cylinder 33. A hydraulic chamber 36 is formed inside the first piston cylinder 32 and filled with hydraulic oil. The hydraulic chamber 36 is connected to a first hydraulic pipe 74. An air extraction chamber is formed inside the second piston cylinder 33. An air inlet pipe 37 and an air outlet pipe 38 connected to the air extraction chamber are connected to the second piston cylinder 33. A first one-way valve is provided at the air inlet pipe 37, and a second one-way valve is provided at the air outlet pipe 38. The air inlet pipe 37 is connected to a negative pressure component 6. An actuation unit 39 is provided inside the actuation housing 31. The actuation unit 39 is used to drive the first piston rod 34 and the second piston rod 35 to move. Further, the actuation unit 39 includes a first shaft 391, a first connecting block 392, a second connecting block 393, and a second shaft 394. The first shaft 391 and the second shaft 394 are rotatably mounted on the actuation housing 31. One end of the first shaft 391 is coaxially and fixedly connected to the output shaft of the drive motor 43, and the other end of the first shaft 391 is fixedly connected to the first connecting block 392. The first connecting block 392 is fixedly connected to the second connecting block 393, and the second connecting block 393 is fixedly connected to the second shaft 394. The second shaft 394 passes through the defoaming tube 1 and is coaxially fixedly connected to the drive shaft 44. A first connecting rod 395 is hinged on the first shaft 391, and the first connecting rod 395 extends into the first piston cylinder 32 and is hinged to the first piston column 34. A second connecting rod 396 is hinged on the second shaft 394, and the second connecting rod 396 extends into the second piston cylinder 33 and is hinged to the second piston column 35.

[0034] In this embodiment, when the rotational power from the drive motor 43 is synchronously transmitted, it is transmitted to the drive shaft 44 through the first shaft 391, the first connecting block 392, the second connecting block 393, and the second shaft 394, which are coaxially fixed thereto. The drive shaft 44 transmits rotation to drive the defoaming paddle 2 to rotate. On the other hand, the first shaft 391 and the second shaft 394 rotate synchronously, thereby converting the first connecting rod 395, which is hinged to the first shaft 391, and the second connecting rod 396, which is hinged to the second shaft 394, into reciprocating linear motion of the first piston rod 34 and the second piston rod 35 in the corresponding first piston cylinder 32 and second piston cylinder 33, respectively. Specifically, the reciprocating motion of the first piston rod 34 in the hydraulic chamber 36 The motion periodically compresses or releases the hydraulic oil, transmitting hydraulic pulses through the first hydraulic pipe 74 to the air chamber 72 of the push cylinder 71. This drives the internal piston ring 73 and sliding shaft 24 to move axially left and right, ultimately controlling the periodic change of the angle of attack of the blade 5. Simultaneously, the reciprocating motion of the second piston rod 35 in the suction chamber, in conjunction with the first one-way valve at the air inlet pipe 37 (allowing only gas to enter) and the second one-way valve at the air outlet pipe 38 (allowing only gas to exit), forms a piston pump. With the reciprocating motion of the second piston rod 35, gas is continuously drawn in and discharged from the negative pressure component 6 connected to the air inlet pipe 37, thereby forming and maintaining the required local negative pressure environment in the key area inside the defoaming pipe 1, assisting in foam breakage. The entire mechanism creatively decomposes and transforms the rotation of a single input shaft into a complete set of synchronous and periodic composite actions, simultaneously achieving dynamic control of the angle of attack of the blade 5 and negative pressure assistance in the defoaming zone, achieving synergistic effects of mechanical shearing and physical environment control.

[0035] In a preferred embodiment, the negative pressure component 6 is a negative pressure plate, and a negative pressure cavity 61 is provided inside the negative pressure plate. A negative pressure hole 62 is provided at the bottom of the negative pressure plate, and the negative pressure hole 62 is connected to the negative pressure cavity 61. The air inlet pipe 37 extends into the defoaming pipe 1 and is connected to the negative pressure cavity 61. When the second piston column 35 inside the actuator 3 reciprocates and generates a suction effect, the gas in the entire pipeline connected to the negative pressure chamber 61 and the air chamber 72 of the push cylinder 71 is continuously drawn through the air inlet pipe 37. This suction action first causes the sealed negative pressure chamber 61 inside the negative pressure plate to generate and maintain a negative pressure state lower than the ambient air pressure inside the defoaming pipe 1. This negative pressure forms a uniformly distributed local low-pressure zone above the working liquid surface of the defoaming paddle 2 through multiple negative pressure holes 62 opened at the bottom of the negative pressure plate that directly face the foam accumulation area. Under this low-pressure environment, a stable pressure difference is formed inside and outside the foam film, which causes the foam to thin and break down faster due to the expansion of the internal gas. At the same time, the tiny bubbles remaining after being broken by the defoaming paddle 2 are more likely to escape under the drive of this pressure difference, thus forming a physical synergy with mechanical shearing, which greatly improves the thoroughness of defoaming. Furthermore, the negative pressure plate realizes the simultaneous control of the two functions of "angle of attack adjustment" and "negative pressure generation" by a single power source (second piston column 35) through the internal chamber and pipe, achieving a high degree of system integration and efficiency multiplication.

[0036] In a preferred embodiment, four vibration rods 81 are also uniformly fixedly connected around the base 22, each vibration rod 81 being located in the internal space of the corresponding blade 5; at least one vibration component 82 is provided on the vibration rod 81, the vibration component 82 including an elastic element 821 and a movable impactor 822. In this embodiment, the elastic element 821 is preferably a spring, one end of the elastic element 821 is connected to the vibration rod 81, and the other end of the elastic element 821 is connected to the movable impactor 822; when the blade 5 rotates to adjust the angle of attack, the inner surface of the blade 5 contacts the movable impactor 822 and squeezes the elastic element 821, causing the elastic element 821 to store energy; when the blade 5 rotates in the opposite direction, the movable impactor 822 impacts the inner surface of the blade 5 under the action of the release of the elastic element 821, causing the blade 5 to vibrate.

[0037] When the blade 5 deflects at an angle under the drive of the actuator 3, the rotation of the blade 5 around the fixed base 22 changes its relative position with the movable impactor 822 on the internal vibrating rod 81. During the rotation of the blade 5 in one direction (e.g., the forward rotation direction), the inner surface of the blade 5 gradually presses against the movable impactor 822, forcing the elastic element 821 (such as a spring or sheet) to compress or deform, thereby storing some mechanical energy as elastic potential energy. Subsequently, when the blade 5 begins to rotate in the opposite direction (e.g., the reverse rotation direction) under control, the pressure on the inner surface of the blade 5 is released, and the compressed elastic element 821 quickly releases its stored potential energy, driving the movable impactor 822 to impact the inner surface of the blade 5 with a certain initial velocity. Thus, on the basis of mechanical rotation and angle change, a high-frequency, localized impact vibration is superimposed on each blade 5. The ingenuity of this design lies in converting the angle adjustment motion of the paddle 5 itself into the energy source for driving the vibration component 82, achieving self-excited vibration without additional power input. The beneficial effect is that when the vibration is transmitted to the foam liquid film in contact with it through the paddle 5, the vibration can break the orderly arrangement of molecules within the foam film, reduce the film strength, and make it easier to break under subsequent mechanical shear. At the same time, the vibration can induce tiny cavitation and disturbances in the liquid, causing the broken small bubbles to accelerate their coalescence or making the tiny bubbles trapped in the liquid more likely to float and dissipate, preventing them from restabilizing or being re-entangled. This effectively interferes with the molecular arrangement of the foam film, reduces the local strength of the film, and makes the foam more prone to instability and breakage under mechanical shear. Especially for tough protein foam, this "vibration assistance" can significantly improve the thoroughness of defoaming. The entire mechanism is highly synergistic with the dynamic angle adjustment, so that the defoaming paddle 2 simultaneously possesses the triple defoaming effects of macroscopic rotational shearing, mesoscopic angle agitation, and microscopic vibration impact, greatly enhancing the adaptability, efficiency, and final defoaming effect of the device.

[0038] In a preferred embodiment, the defoaming tube 1 is provided with an inclined baffle 91 and a wire mesh demister 92. The wire mesh demister 92 is a component well-known to those skilled in the art. The waste liquid first flows through the inclined baffle 91 near the inlet. Most of the large bubbles generated by turbulence are initially broken by impacting the surface of the baffle under the action of gravity and inertia. At the same time, the baffle guides the separation of foam and liquid, playing a role in pre-defoaming and stabilizing the flow. This provides the main defoaming section (dynamic defoaming paddle 2) with liquid to be treated with less foam load and more orderly flow, improving the working efficiency and targeting of the core defoaming mechanism. Subsequently, the liquid after mechanical shearing and negative pressure assisted treatment in the main defoaming section passes through the wire mesh demister 92 before flowing to the outlet. The wire mesh demister 92 uses the narrow channel formed by the fine aperture and the huge specific surface area to physically intercept and aggregate the residual trace foam carried in the liquid, causing it to merge into large droplets under the action of surface tension and eventually break, ensuring the defoaming effect of the discharged liquid. This improves the overall device's ability to handle complex and stable foam, the final effluent quality, and the overall robustness of the system. This invention has high application value.

[0039] The above embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention.

Claims

1. A defoaming device for reaction waste liquid of a protein analyzer, characterized in that, include: The defoaming tube (1), defoaming paddle (2), actuator (3) and drive unit (4) are provided. The defoaming paddle (2) is rotatably installed inside the defoaming tube (1). The drive unit (4) is connected to the actuator (3). The actuator (3) is connected to the defoaming paddle (2) to drive the defoaming paddle (2) to rotate. At least two blades (5) are rotatably mounted on the defoaming paddle (2), and each blade (5) is connected to the actuator (3) to drive the angle of attack of each blade (5) to change. It also includes a negative pressure component (6), which is disposed inside the defoaming tube (1) and is connected to the actuator (3). The actuator (3) draws the air out of the defoaming tube (1) through the negative pressure component (6). The defoaming pipe (1) is provided with an inlet pipe (11) on one side and an outlet pipe (12) at the other end. Waste liquid enters through the inlet pipe (11), is defoamed by the defoaming paddle (2), and is discharged from the outlet pipe (12). The defoaming paddle (2) includes a rotating shaft (21) and a fixed base (22). The number of paddle blades (5) is four. Each paddle blade (5) is evenly distributed around the fixed base (22), and each paddle blade (5) is rotatably connected to the fixed base (22). The rotating shaft (21) has a hollow structure. The defoaming tube (1) is provided with a first support frame (13) and a second support frame (14). The rotating shaft (21) is rotatably mounted on the second support frame (14). One end of the rotating shaft (21) is connected to a driven bevel gear (23), and the other end of the rotating shaft (21) is fixedly connected to the fixed seat (22). The rotating shaft (21) is coaxially provided with a sliding shaft (24). The rotating shaft (21) is sleeved on the sliding shaft (24). One end of the sliding shaft (24) passes through the fixed seat (22) and is connected to a sliding seat (25). A hinge rod (26) is hinged on the sliding seat (25). The free end of the hinge rod (26) is hinged to the corresponding blade (5). The other end of the sliding shaft (24) is connected to a reciprocating pusher (7); Four vibrating rods (81) are evenly fixedly connected around the fixed base (22), and each vibrating rod (81) is located in the internal space of the corresponding paddle (5); at least one vibrating component (82) is provided on the vibrating rod (81), and the vibrating component (82) includes an elastic element (821) and a movable impactor (822). One end of the elastic element (821) is connected to the vibrating rod (81), and the other end is connected to the movable impactor (822); When the blade (5) rotates in one direction, the inner surface of the blade (5) contacts the movable impactor (822) and squeezes the elastic element (821), causing the elastic element (821) to store energy; When the blade (5) rotates in the opposite direction, the movable impactor (822) impacts the inner surface of the blade (5) under the action of the release of the elastic element (821), causing the blade (5) to vibrate.

2. The defoaming device for reaction waste liquid of the protein analyzer according to claim 1, characterized in that: The reciprocating pusher (7) includes a pusher cylinder (71) fixedly installed on the first support frame (13), an air chamber (72) is formed inside the pusher cylinder (71), a piston ring (73) is slidably connected inside the air chamber (72), and the end of the sliding shaft (24) extends into the pusher cylinder (71) and is fixedly connected to the piston ring (73). The push cylinder (71) is provided with a first hydraulic pipe (74) that communicates with the air chamber (72).

3. The defoaming device for reaction waste liquid of the protein analyzer according to claim 2, characterized in that: The drive unit (4) includes a drive housing (41), a drive mounting base (42), and a drive motor (43). The drive housing (41) and the drive mounting base (42) are fixedly mounted on the defoaming tube (1), and the drive motor (43) is fixedly mounted on the drive mounting base (42). A drive shaft (44) is rotatably connected to the defoaming tube (1). One end of the drive shaft (44) is connected to the actuator (3), and the other end of the drive shaft (44) is connected to a drive bevel gear (45). The drive bevel gear (45) meshes with the driven bevel gear (23).

4. The defoaming device for reaction waste liquid of the protein analyzer according to claim 3, characterized in that: The actuator (3) includes an actuator housing (31), a first piston cylinder (32) and a second piston cylinder (33) fixed on the actuator housing (31). A first piston rod (34) is slidably connected inside the first piston cylinder (32), and a second piston rod (35) is slidably connected inside the second piston cylinder (33). A hydraulic chamber (36) is formed inside the first piston cylinder (32), and the hydraulic chamber (36) is filled with hydraulic oil. The hydraulic chamber (36) is connected to the first hydraulic pipe (74). The second piston cylinder (33) has a suction chamber. The second piston cylinder (33) is connected to an air inlet pipe (37) and an air outlet pipe (38) that communicate with the suction chamber. A first one-way valve is provided at the air inlet pipe (37), and a second one-way valve is provided at the air outlet pipe (38). The air inlet pipe (37) is connected to the negative pressure component (6). An actuation unit (39) is provided inside the actuation housing (31), and the actuation unit (39) is used to drive the first piston rod (34) and the second piston rod (35) to move.

5. The defoaming device for reaction waste liquid of protein analyzer according to claim 4, characterized in that: The actuation unit (39) includes a first shaft (391), a first connecting block (392), a second connecting block (393), and a second shaft (394). The first shaft (391) and the second shaft (394) are rotatably mounted on the actuation housing (31). One end of the first shaft (391) is coaxially connected to the drive motor (43), and the other end of the first shaft (391) is connected to the first connecting block (392). The first connecting block (392) is connected to the second connecting block (393), and the second connecting block (393) is connected to the second shaft (394). The second shaft (394) passes through the defoaming tube (1) and is coaxially fixedly connected to the drive shaft (44). A first connecting rod (395) is hinged to the first shaft (391), the first connecting rod (395) extends into the first piston cylinder (32) and is hinged to the first piston column (34). A second connecting rod (396) is hinged to the second shaft (394), the second connecting rod (396) extends into the second piston cylinder (33) and is hinged to the second piston column (35).

6. The defoaming device for reaction waste liquid of protein analyzer according to claim 5, characterized in that: The negative pressure component (6) is a negative pressure plate, and a negative pressure cavity (61) is provided inside the negative pressure plate. A negative pressure hole (62) is provided at the bottom of the negative pressure plate. The negative pressure hole (62) is connected to the negative pressure cavity (61). The air inlet pipe (37) extends into the defoaming pipe (1) and is connected to the negative pressure cavity (61).

7. The defoaming device for reaction waste liquid of a protein analyzer according to any one of claims 1 to 6, characterized in that: The defoaming tube (1) is equipped with an inclined baffle (91) and a wire mesh demister (92).

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