A high-mixing diaphragm pump and method of operation

Abstract

The application discloses a high-mixing diaphragm pump and an operating method, belongs to the technical field of diaphragm pumps, and solves the problem that two kinds of fluids are mixed together when leaving the outlet, thereby completing the mixing of the fluids, but the effect of the method is poor, and the method can only complete the preliminary mixing of the fluids. The diaphragm pump comprises a cylinder body, an air pump in communication with an air inlet of the cylinder body, diaphragm chambers in communication with two ends of the cylinder body, and a diaphragm assembly movably connected in the cylinder body and the diaphragm chambers, and the diaphragm chambers are communicated with vertical pipes. The diaphragm pump can mix two kinds of liquids when the liquids enter the diaphragm pump, and can also make the mixed liquids collide with each other when the liquids leave the diaphragm pump, thereby further mixing the liquids.

Description

Technical Field

[0001] This invention relates to the field of diaphragm pump technology, and more particularly to a high-mixing-performance diaphragm pump and its operating method. Background Technology

[0002] A diaphragm pump is a special type of pump whose most significant characteristic is its ability to transport liquids by compressing and expanding a diaphragm. This type of pump typically consists of two diaphragms that alternately inflate and deflate on either side of the pump, thus performing the suction and transport of fluids. If the diaphragm pump has two inlets, it can even simultaneously transport two fluids, either separately or together.

[0003] Diaphragm pumps have a wide range of applications due to their unique operating principle. For example, in the chemical industry, diaphragm pumps can be used to transport corrosive liquids, or in the food industry to transport liquid foods. Furthermore, diaphragm pumps can also be used to transport viscous liquids, which is difficult for other types of pumps to do.

[0004] Diaphragm pumps are designed to adapt to various working environments and fluid types. Their robust design allows them to operate in harsh environments, such as high temperatures, low temperatures, and high pressures. Furthermore, their ability to handle a wide range of fluids makes diaphragm pumps an ideal choice for many applications.

[0005] In summary, diaphragm pumps are efficient, reliable, and highly adaptable working partners with broad application prospects in both industrial production and daily life.

[0006] In the process of transporting the two fluids together, they mix together as they leave the outlet, thus completing the mixing. However, this mixing method is not very effective, as it can only achieve the initial mixing of the fluids. Ultimately, additional tools such as stirring tanks are still needed to complete the mixing of multiple fluids, resulting in poor work efficiency.

[0007] Therefore, a high-mixing-performance diaphragm pump and its operating method are proposed to solve or alleviate the above problems. Summary of the Invention

[0008] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-mixing-performance diaphragm pump and its operating method.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A high-mixing-performance diaphragm pump includes a cylinder, an air pump connected to its air inlet, diaphragm chambers connected to both ends of the cylinder, and a diaphragm assembly movably connected to the cylinder and the diaphragm chambers. The diaphragm chambers are connected to a vertical pipe, and the two ends of the vertical pipe are respectively connected to an upper connecting pipe and a lower connecting pipe. The middle section of the lower connecting pipe has two inlets, and the middle section of the upper connecting pipe has an outlet. The two diaphragm chambers on both sides respectively contain a one-way solenoid valve one and a one-way solenoid valve two, which control the cross-sectional area of ​​the vertical pipe opening and allow the fluid to flow in one direction. The pump also includes a control circuit, which is coupled to the air pump, the one-way solenoid valve one, and the one-way solenoid valve two, and controls the air pump's inflation volume and the cross-sectional area of ​​the vertical pipe opening.

[0011] Preferably, the one-way solenoid valve one includes a solenoid valve one coupled to the control circuit and a one-way valve one, the one-way valve one being connected to the outlet of the solenoid valve one and located in one of the vertical pipes; the one-way solenoid valve two includes a solenoid valve two coupled to the control circuit and a one-way valve two, the one-way valve two being connected to the outlet of the solenoid valve two and located in another vertical pipe.

[0012] Preferably, the two inlets include a vertical inlet communicating with the lower connecting pipe and a horizontal inlet, wherein the vertical inlet and the horizontal inlet are used for two different liquids to enter, and the density of the liquid entering through the vertical inlet must be greater than the density of the liquid entering through the horizontal inlet.

[0013] Preferably, there are two outlets, including a vertical outlet connected to the upper connecting pipe and a horizontal outlet. The vertical outlet is used to connect to a vertically arranged connecting pipe that is closed at one end and open at the other end. A piston is slidably connected inside the connecting pipe, and a spring is fixedly connected between the piston and the inner top surface of the connecting pipe. An air hole is opened on the inner top surface of the connecting pipe.

[0014] Preferably, the control circuit includes a controller and a touch screen coupled thereto, wherein the output terminal of the controller is coupled to an air pump, solenoid valve one, and solenoid valve two.

[0015] Preferably, the controller is a microcontroller.

[0016] Preferably, the control circuit further includes a density sensor one, a density sensor two, and a comparison circuit. The density sensor one and the density sensor two are respectively provided with two inlets. The output terminals of the density sensor one and the density sensor two are both coupled to the input terminal of the controller. The output terminals of the density sensor one and the density sensor two are also coupled to the input terminal of the comparison circuit. The output terminal of the comparison circuit is also coupled to the input terminal of the controller.

[0017] The present invention also provides an operating method for a high-mixing diaphragm pump, which is carried out using the above-described high-mixing diaphragm pump and includes the following steps:

[0018] Step 1: First, insert density sensor 1 and sealed sensor 2 into the two liquids to compare their densities;

[0019] Step 2: The controller controls the cross-sectional size of the openings of solenoid valve one and solenoid valve two according to the above content, and presets the air pump's inflation volume for the two diaphragm components.

[0020] Step 3: The controller controls the two diaphragm components to perform a single number of unsaturated displacements and then a single saturated displacement. When the diaphragm components are in unsaturated displacement, the cross-sectional area of ​​the openings of solenoid valve 1 and solenoid valve 2 is larger than the cross-sectional area of ​​the openings of solenoid valve 1 and solenoid valve 2 when the diaphragm components are in saturated displacement.

[0021] The present invention has the following beneficial effects:

[0022] The diaphragm pump of the present invention has a unique design and working principle, which enables it to achieve initial mixing when two different liquids enter the pump, and to achieve full mixing through processes such as vertical transport and extrusion impact.

[0023] During the operation of a diaphragm pump, liquid enters the pump through the inlet. The pump's unique structure and movement ensure initial mixing. The diaphragm pump propels the liquid flow by compressing and expanding the diaphragm, creating a special liquid flow pattern. This liquid undergoes multiple transport processes within the pump. In each process, the liquid is squeezed out from bottom to top in a single flow, causing turbulence in the unmixed liquid above and further promoting thorough mixing.

[0024] Vertical transport is a crucial step, during which the liquid undergoes multiple round trips. Through this cyclical transport, different parts of the liquid come into contact with and exchange fluids, promoting mixing of the components. The short transport time limits the possibility of liquid separation, allowing for better mixing.

[0025] When the mixed liquid leaves the diaphragm pump, the liquid flow is extruded at a high speed. This extrusion process generates liquid impact, which further mixes the liquids on both sides. The impact causes diffusion and interaction between the liquids, greatly increasing the contact area between the liquid components and promoting the mixing reaction.

[0026] In summary, the diaphragm pump of this invention, through its special design and operating principle, enables initial mixing of the liquid upon entry into the pump, and achieves thorough mixing through vertical transport and extrusion impact processes. This design ensures that the liquid is fully mixed during multiple transport processes within the pump, ultimately achieving the desired mixing effect. The advantage of the diaphragm pump lies in its ability to handle the mixing needs of two different liquids, and its applicability to various industrial fields, such as chemical, pharmaceutical, and environmental protection industries. This makes the diaphragm pump of this invention a highly efficient, reliable, and flexible liquid transfer device. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a structural block diagram of the present invention.

[0029] 1. Cylinder block; 2. Diaphragm chamber; 3. Vertical pipe; 4. One-way solenoid valve 1; 41. Solenoid valve 1; 5. One-way solenoid valve 2; 51. Solenoid valve 2; 6. Lower connecting pipe; 61. Vertical inlet; 62. Horizontal inlet; 7. Upper connecting pipe; 71. Horizontal outlet; 72. Vertical outlet; 8. Air pump; 9. Touch screen; 10. Density sensor 1; 11. Density sensor 2. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] A high-mixing diaphragm pump, such as Figure 1 As shown, it includes a cylinder body 1, an air pump 8 connected to its air inlet, a diaphragm chamber 2 connected to both ends of the pump body, and a diaphragm assembly movably connected to the pump body and the diaphragm chamber 2. The diaphragm assembly, the cylinder body 1, and the connection between the two are all prior art, and this application does not improve them, so they will not be described in detail.

[0032] The diaphragm chamber 2 is connected to a vertical pipe 3, and the two ends of the vertical pipe 3 are respectively connected to an upper connecting pipe 7 and a lower connecting pipe 6. There are two inlets in the middle section of the lower connecting pipe 6. The two inlets include a vertical inlet 61 connected to the lower connecting pipe 6 and a horizontal inlet 62. The vertical inlet 61 and the horizontal inlet 62 are used for two different liquids to enter, and the density of the liquid entering from the vertical inlet 61 must be greater than the density of the liquid entering from the horizontal inlet 62.

[0033] The middle section of the upper connecting pipe 7 has two outlets. The two outlets include a vertical outlet 72 that communicates with the upper connecting pipe 7 and a horizontal outlet 71. The vertical outlet 72 is used to connect a vertically arranged connecting pipe that is closed at one end and open at the other end. A piston is slidably connected inside the connecting pipe. A spring is fixedly connected between the piston and the inner top surface of the connecting pipe. An air hole is opened on the inner top surface of the connecting pipe.

[0034] Each of the two diaphragm chambers 2 contains a one-way solenoid valve 4 and a one-way solenoid valve 5, which control the cross-sectional area of ​​the opening in the vertical pipe 3 and allow fluid to flow in one direction. The one-way solenoid valve 4 includes a solenoid valve 41 coupled to the control circuit and a one-way valve. The one-way valve is connected to the outlet of the solenoid valve 41 and is located in one of the vertical pipes 3. The one-way solenoid valve 5 includes a solenoid valve 51 coupled to the control circuit and a one-way valve. The one-way valve is connected to the outlet of the solenoid valve 51 and is located in the other vertical pipe 3.

[0035] like Figure 2 As shown, it also includes a control circuit, which is coupled to the air pump 8, one-way solenoid valve 4, and one-way solenoid valve 5. The control circuit controls the air volume of the air pump 8 and the cross-sectional size of the inlet of the vertical pipe 3. Specifically, the control circuit includes a microcontroller controller, a touch screen 9 coupled to it, density sensor 10, density sensor 21, and a comparison circuit. The output of the controller is coupled to the air pump 8, solenoid valve 41, and solenoid valve 21. Density sensor 10 and density sensor 21 are respectively set to two inlets. The outputs of density sensor 10 and density sensor 21 are both coupled to the input of the controller. The outputs of density sensor 10 and density sensor 21 are also coupled to the input of the comparison circuit. The output of the comparison circuit is also coupled to the input of the controller.

[0036] The present invention also provides an operating method for a high-mixing diaphragm pump, which is carried out using the above-described high-mixing diaphragm pump and includes the following steps:

[0037] Step 1: Density sensor 10 and sealing sensor 2 are first inserted into two liquids to compare their densities. This allows density sensors 10 and 2 to feed back the detected densities of the two liquids to the controller. The controller can then display the densities of the two liquids on the touchscreen 9. The comparison circuit first determines the magnitude of the two signals output by density sensors 10 and 2. Since density sensors 10 and 2 are respectively set to correspond to the horizontal inlet 62 and the vertical inlet 61, the density sensors 10 and 2 need to achieve a condition where the liquid density at the vertical inlet 61 is greater than the liquid density at the horizontal inlet 62. That is, when the comparison circuit outputs a low-level signal, a comparison signal will be generated and sent to the controller. At this point, the controller meets the condition to start subsequent operation, preparing for the operation of the diaphragm pump.

[0038] Step 2: The controller adjusts the cross-sectional area of ​​solenoid valve 41 and solenoid valve 51 according to the above, and presets the air pump 8 to charge the two diaphragm components. Since the two liquids have different densities, and according to Bernoulli's principle, the greater the density of a liquid, the greater its flow velocity and mechanical potential energy, all other things being equal. To balance the suction volume of the two liquids, the liquid with the higher density is connected to the vertical inlet 61, using its own gravity to weaken its mechanical potential energy. This allows the two liquids to collide at similar flow velocities, causing... Turbulent flow completes the initial mixing of the two liquids. Simultaneously, the controller controls the cross-sectional size of the orifices of solenoid valve 41 and solenoid valve 51, enabling it to control the appropriate cross-sectional size of the orifices of solenoid valve 41 and solenoid valve 51 under both fast and slow flow conditions within the vertical pipe 3. Furthermore, the installation of check valves 1 and 2 ensures that the liquid pushed through solenoid valves 41 and 51 by the diaphragm assembly is supported by check valves 1 and 2, preventing backflow. As a result, under the action of the entire diaphragm pump, the liquid exhibits an overall upward trend.

[0039] Step 3: The controller controls the two diaphragm assemblies to perform a single-digit unsaturated displacement followed by a single saturated displacement. When the diaphragm assemblies are in unsaturated displacement, the cross-sectional area of ​​the orifices of solenoid valves 41 and 51 is larger than that when the diaphragm assemblies are in saturated displacement. Therefore, during the unsaturated displacement, the flow rate of liquid in the vertical pipe 3 is less than the flow rate during the ultimate displacement of the diaphragm assemblies. During the saturated displacement, the flow rate of liquid in the vertical pipe 3 is equal to the flow rate during the ultimate displacement of the diaphragm assemblies. However, because the flow rate of liquid in the vertical pipe 3 is less than that during the ultimate displacement, the flow rate of liquid in the vertical pipe 3 is less than that during the ultimate displacement. The cross-sectional area of ​​valve 2 51 is larger than that of solenoid valve 1 41 and solenoid valve 2 51 when the diaphragm assembly is in saturation displacement. According to the formula: velocity = flow rate / flow cross-sectional area, the liquid velocity during unsaturation displacement of the diaphragm assembly is lower than that during saturation displacement. Unsaturation displacement of the diaphragm assembly is only to allow the initially mixed liquid to pass through solenoid valve 1 41, solenoid valve 2 51, and check valve 1 and check valve 2, completing the upward transport of the liquid. Check valve 1 and check valve 2 can support the upward transport of the liquid, preventing backflow. Simultaneously, the liquid flows slowly from bottom to top. The liquid can also remix liquids that are attempting to settle, thus achieving a secondary mixing effect. When the diaphragm assembly undergoes saturation displacement, the guiding force on the liquid from bottom to top remains unchanged, while the cross-sectional area of ​​the solenoid valves 41 and 51 decreases. Therefore, the liquid flow rate increases, and the liquid flows rapidly in a streamlined manner through the liquid located above the check valves and within the vertical pipe 3, allowing it to enter the upper connecting pipe 7. Simultaneously, the rapidly flowing liquid creates a velocity difference with the slowly flowing liquid, resulting in turbulence and causing the liquid in the vertical pipe 3 to undergo a tertiary mixing. The liquid entering the upper connecting pipe 7 from the vertical pipe 3 collides with each other, resulting in four mixing processes. After the two sides collide, the liquid leaves through the horizontal outlet 71. During the collision, the water pressure rises, and the liquid can also enter the vertical outlet 72 and then the connecting pipe. Finally, it impacts the piston, causing the piston to push the spring, which deforms to resist the mechanical potential energy brought by the rising liquid until it is neutralized. This causes the air between the piston and the connecting pipe to be discharged through the vent. Then, as the mechanical potential energy is weakened, the spring releases its elastic potential energy, drawing air into the connecting pipe through the vent. The piston then forces the liquid out of the connecting pipe and out through the horizontal outlet 71, thus completing the discharge of the liquid.

[0040] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-mixing-performance diaphragm pump, comprising a cylinder (1), an air pump (8) connected to its air inlet, diaphragm chambers (2) connected to both ends of the cylinder (1), and a diaphragm assembly movably connected to the cylinder (1) and the diaphragm chambers (2), characterized in that, The diaphragm chamber (2) is connected to a vertical pipe (3), and the two ends of the vertical pipe (3) are respectively connected to an upper connecting pipe (7) and a lower connecting pipe (6). The middle section of the lower connecting pipe (6) has two inlets, and the middle section of the upper connecting pipe (7) has an outlet. The two sides of the diaphragm chamber (2) are respectively equipped with a one-way electric valve (4) and a one-way electric valve (5) that control the size of the cross-section of the opening in the vertical pipe (3) and allow the fluid to flow in one direction. The diaphragm chamber (2) also includes a control circuit. The control circuit is coupled to the air pump (8), the one-way electric valve (4) and the one-way electric valve (5), and controls the air volume of the air pump (8) and the size of the cross-section of the opening in the vertical pipe (3). The two inlets include a vertical inlet (61) and a horizontal inlet (62) connected to the lower connecting pipe (6). The vertical inlet (61) and the horizontal inlet (62) are used for two different liquids to enter, and the density of the liquid entering from the vertical inlet (61) must be greater than the density of the liquid entering from the horizontal inlet (62). The number of outlets is two. The two outlets include a vertical outlet (72) and a horizontal outlet (71) connected to the upper connecting pipe (7). The vertical outlet (72) is used to connect to a vertically arranged connecting pipe with one end closed and the other end open. A piston is slidably connected inside the connecting pipe. A spring is fixedly connected between the piston and the inner top surface of the connecting pipe. An air hole is opened on the inner top surface of the connecting pipe.

2. The high-mixing-performance diaphragm pump according to claim 1, characterized in that, The one-way solenoid valve (4) includes a solenoid valve (41) coupled to the control circuit and a one-way valve. The one-way valve is connected to the outlet of the solenoid valve (41) and is located in one of the vertical pipes (3). The one-way solenoid valve (5) includes a solenoid valve (51) coupled to the control circuit and a one-way valve. The one-way valve is connected to the outlet of the solenoid valve (51) and is located in another vertical pipe (3).

3. A high-mixing-performance diaphragm pump according to claim 1, characterized in that, The control circuit includes a controller and a touch screen (9) coupled thereto. The output of the controller is coupled to an air pump (8), a solenoid valve one (41), and a solenoid valve two (51).

4. A high-mixing-performance diaphragm pump according to claim 3, characterized in that, The controller is a microcontroller.

5. A high-mixing-performance diaphragm pump according to claim 3, characterized in that, The control circuit also includes a density sensor one (10), a density sensor two (11), and a comparison circuit. The density sensor one (10) and the density sensor two (11) are respectively set with two inlets. The output terminals of the density sensor one (10) and the density sensor two (11) are both coupled to the input terminal of the controller. The output terminals of the density sensor one (10) and the density sensor two (11) are also coupled to the input terminal of the comparison circuit. The output terminal of the comparison circuit is also coupled to the input terminal of the controller.

6. A method of operating a high-mixing diaphragm pump, wherein the high-mixing diaphragm pump as described in any one of claims 1-5 is characterized in that, Includes the following steps, Step 1: First, insert density sensor 1 (10) and sealed sensor 2 into the two liquids to compare their densities; Step 2: The controller controls the cross-sectional size of the openings of solenoid valve 1 (41) and solenoid valve 2 (51) according to the above content, and presets the amount of air pump (8) to inflate the two diaphragm components. Step 3: The controller controls the two diaphragm components to perform a single number of unsaturated displacements and then a single saturated displacement. When the diaphragm components perform unsaturated displacements, the cross-sectional area of ​​the openings of solenoid valve 1 (41) and solenoid valve 2 (51) is larger than the cross-sectional area of ​​the openings of solenoid valve 1 (41) and solenoid valve 2 (51) when the diaphragm components perform saturated displacements.

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