High-pressure air supply equipment for pneumatic diaphragm pump

Abstract

The utility model discloses high-pressure air supply equipment for a pneumatic diaphragm pump. The high-pressure air supply equipment comprises a rack, the diaphragm pump and a pressurized air supply system, the pressurization air supply system comprises a pressurization valve support, a pneumatic element installation cabinet, a pneumatic triple piece, an air supply device and a pressurization device. The air supply device comprises a two-position five-way electromagnetic valve, an air supply pipe, a low-pressure air supply pipe, a high-pressure connecting pipe and an exhaust pipe. The pressurizing device comprises a pressurizing valve and a high-pressure air supply pipe. Compared with the prior art, the pressure increasing valve is arranged to pressurize gas, the pressure intensity of gas supply is improved, and the requirements of customers under high-pressure working conditions are met. Meanwhile, by arranging the Y-shaped tee joint, the gas one-way valve and the two-position five-way electromagnetic valve, the requirement that a high-pressure gas supply pipeline and a low-pressure gas supply pipeline exist at the same time is met, the diaphragm pump can be used in the high-pressure working condition and the low-pressure working condition at the same time, the structure is simple, maintenance is convenient, the requirements of more customers are met, and the practicability is high. And high-pressure transportation is realized by using a small-flow gas source, so that the use cost is lower.

Description

Technical Field

[0001] The utility model relates to the field of pneumatic diaphragm pumps, in particular to high-pressure air supply equipment for pneumatic diaphragm pumps. Background Art

[0002] Diaphragm pumps, also known as control pumps, are a primary type of actuator. They utilize power to change fluid flow by receiving control signals from a control unit. They are a new type of conveying mechanism capable of transporting a variety of corrosive liquids, liquids containing particles, and high-viscosity, volatile, flammable, and highly toxic liquids. Diaphragm pumps are further categorized as pneumatic, electric, and hydraulic diaphragm pumps. Pneumatic diaphragm pumps are positive displacement pumps powered by compressed gas, creating volume changes through the reciprocating deformation of a diaphragm. They rely on the interaction of a double-directional reversal valve and an auxiliary rod, or a single-directional reversal valve and a connecting rod sliding sleeve, to drive the back-and-forth movement of the elastic diaphragm, causing alternating expansion and contraction of the two chambers, ultimately achieving continuous intake and discharge of liquid.

[0003] For example, a multi-outlet diversion pneumatic diaphragm pump disclosed in a Chinese utility model patent with an authorization announcement date of 2020.12.29 and an authorization announcement number of CN212250416U includes a pneumatic diaphragm pump main pipeline, the pneumatic diaphragm pump main pipeline is a circular frame structure, and ball check valves are diagonally distributed on the four sides of the inside of the pneumatic diaphragm pump main pipeline, an air distribution valve is installed above the middle of the pneumatic diaphragm pump main pipeline, and a diaphragm diaphragm chamber is connected below the air distribution valve, and the diaphragm diaphragm chamber is distributed in the middle of both sides of the pneumatic diaphragm pump main pipeline, the middle of the top of the pneumatic diaphragm pump main pipeline is connected to a material conveying inlet, and the front side of the middle of the lower part of the pneumatic diaphragm pump main pipeline is connected to a material conveying outlet, the top and side of the lower point of the pneumatic diaphragm pump main pipeline are connected to material auxiliary outlets, and the height of the material auxiliary outlet on the side of the pneumatic diaphragm pump main pipeline is lower than the bottom height of the ball check valve.

[0004] Since pneumatic diaphragm pumps use gas pressure as power, the delivery pressure is completely determined by the compressed air pressure. The commonly used compressed air pressure is between 0.4 and 0.8 MPa, resulting in the maximum material delivery pressure of the pneumatic diaphragm pump being 0.8 MPa. Due to the limitation of the air source pressure, it is difficult to meet the on-site needs of high working conditions during market applications. Utility Model Content

[0005] In view of this, the utility model provides a high-pressure air supply device for a pneumatic diaphragm pump to solve the above technical problems.

[0006] A high-pressure air supply device for a pneumatic diaphragm pump, which includes a frame, a diaphragm pump disposed within the frame, and a pressurized air supply system disposed on one side of the frame. The pressurized air supply system includes a booster valve bracket, a pneumatic component installation cabinet, a pneumatic triple unit disposed within the pneumatic component installation cabinet, an air supply device disposed within the booster valve bracket, and a pressurizing device disposed on the booster valve bracket. The air supply device includes a two-position five-way solenoid valve disposed within the booster valve bracket, an air supply pipe connecting the two-position five-way solenoid valve and the pneumatic triple unit, a low-pressure air supply pipe connecting the two-position five-way solenoid valve and the diaphragm pump, a high-pressure connecting pipe connecting the two-position five-way solenoid valve and the pressurizing device, and two empty exhaust pipes. One end of the air supply pipe is connected to the air inlet hole of the two-position five-way solenoid valve, and the other end is connected to the pneumatic triple unit. The pressurizing device includes a booster valve fixed on the booster valve bracket, and a high-pressure air supply pipe connecting the booster valve and the diaphragm pump. The air inlet end of the booster valve is connected to the two-position five-way solenoid valve through the high-pressure connecting pipe, and the air outlet end is connected to the diaphragm pump through the high-pressure air supply pipe. A Y-shaped tee is provided at the air inlet of the diaphragm pump, one end is connected to the diaphragm pump, and the other two ends are respectively connected to the low-pressure air supply pipe and the high-pressure air supply pipe. Gas check valves are provided at the ends of the low-pressure air supply pipe and the high-pressure air supply pipe.

[0007] Further, the high-pressure air supply device for the pneumatic diaphragm pump further includes a PCL intelligent control cabinet disposed on one side of the pressurized air supply system.

[0008] Further, the frame includes a fixed frame, a plurality of side plates disposed between the fixed frames, a top surface disposed on the fixed frame, and a base opposite to the top surface.

[0009] Further, the PCL intelligent control cabinet is fixed on the side plate and is located on the side of the pressurized air supply system away from the diaphragm pump, and controls the two-position five-way solenoid valve, the gas check valve and the pneumatic triple unit respectively.

[0010] Further, at least four shock-absorbing columns are provided between the feet of the diaphragm pump and the base, and the feed pipe and the discharge pipe of the diaphragm pump respectively extend and pass through the side plate.

[0011] Further, the pressurized air supply system further includes at least one exhaust silencer disposed within the pneumatic component installation cabinet.

[0012] Further, the exhaust silencer is fixed within the pneumatic component installation cabinet, the connection port passes through the pneumatic component installation cabinet and is located on the frame, and is connected to the air outlet of the diaphragm pump through a trachea.

[0013] Further, the bottom of the pressure boosting valve bracket is fixed on the base through fasteners, and the pneumatic component installation cabinet is a rectangular installation groove provided on the side plate, and the notch faces the outside of the frame.

[0014] Compared with the prior art, the high-pressure air supply device for a pneumatic diaphragm pump provided by the present utility model provides a gas source for the diaphragm pump by arranging the air supply device, meeting the use requirements of the pneumatic diaphragm pump. And by arranging the pressure boosting valve, the gas is pressurized to increase the air supply pressure, meeting the requirements of customers in high-pressure working conditions. At the same time, by arranging the Y-shaped tee, the gas check valve and the two-position five-way solenoid valve, it is satisfied that two air supply pipelines of high-pressure air supply and low-pressure air supply exist simultaneously, and the air supply pipeline can be quickly switched, so that the diaphragm pump can be used in high-pressure working conditions and low-pressure working conditions at the same time, and the structure is simple and the maintenance is convenient, meeting the needs of more customers, and realizing high-pressure transportation with a small-flow gas source, and the use cost of the equipment is relatively low. Finally, by arranging the PCL intelligent control cabinet, the equipment is intelligently controlled, the operation is simple and easy to start, and there is no technical requirement for manual labor. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of a high-pressure air supply device for a pneumatic diaphragm pump provided by the present utility model.

[0016] Figure 2 is Figure 1 the internal structural schematic diagram of the high-pressure air supply device for a pneumatic diaphragm pump.

[0017] Figure 3 is Figure 1 the connection schematic diagram of the pressurized air supply system 30 of the high-pressure air supply device for a pneumatic diaphragm pump. Detailed Embodiments

[0018] The following further details the specific embodiments of the present utility model. It should be understood that the description of the embodiments of the present utility model herein does not limit the protection scope of the present utility model.

[0019] As Figures 1 to 3 shown, it is a schematic structural diagram of a high-pressure air supply device for a pneumatic diaphragm pump provided by the present utility model. The high-pressure air supply device for a pneumatic diaphragm pump includes a frame 10, a diaphragm pump 20 arranged in the frame 10, a pressurized air supply system 30 arranged on one side of the frame 10, and a PCL intelligent control cabinet 40 arranged on one side of the pressurized air supply system 30. It can be imagined that the high-pressure air supply device for a pneumatic diaphragm pump further includes some other functional modules such as connection circuits, air supply pumps, etc., which are well-known technologies to those skilled in the art and will not be elaborated herein one by one.

[0020] The frame 10 includes a fixed frame 11, a plurality of side plates 12 arranged between the fixed frames 11, a top surface 13 arranged on the fixed frame 11, and a base 14 opposite to the top surface 13, and includes a plurality of other components, including but not limited to operation buttons, digital displays, locks, etc., which are all common technologies used in industrial production equipment, so no detailed description will be given here one by one.

[0021] The fixed frame 11 can be a frame structure built using aluminum profiles and fasteners to support and stabilize the main body. The side plates 12 are a plurality of door panels arranged on the fixed frame 11, which can be connected to the fixed frame 11 by setting a snap structure and locked by a cylindrical locking tongue to enclose the inside of the frame 10, thereby ensuring the protection of precision instruments. The top surface 13 is located at the top of the frame 10 and can be set as an inclined water-reversing slope to jointly enclose a cabinet-like structure with the side plates 12. The base 14 is two fixed support columns connected to the fixed frame 11, which can be made of square steel, and is used to place and fix the diaphragm pump 20, the pressurized air supply system 30, and the PCL intelligent control cabinet 40. Since there is no closed plate at the bottom and an open structure is adopted, it has strong heat dissipation ability and anti-waterlogging effect.

[0022] The diaphragm pump 20 is a pneumatic diaphragm pump. The pneumatic diaphragm pump is an existing technology. For example, the working principle of the pneumatic diaphragm pump is mentioned in a pneumatic diaphragm pump air valve chamber and a pneumatic diaphragm pump in Chinese Invention CN202211014241.2, so only a brief description will be given here. At least four shock-absorbing columns 21 are arranged between the feet of the diaphragm pump 20 and the base 14 to reduce the vibration of the diaphragm pump 20 during operation while fixing the diaphragm pump 20, improve the service life of the equipment, and reduce the noise generated during work. The feed pipe and the discharge pipe of the diaphragm pump 20 respectively extend and pass through the side plate 12 to facilitate connecting the pipeline of the diaphragm pump 20 from the outside of the equipment.

[0023] The pressurized air supply system 30 includes a booster valve bracket 31 arranged on the base 14, a pneumatic component installation cabinet 32 arranged on the side plate 12, a pneumatic triple unit 33 arranged in the pneumatic component installation cabinet 34, a gas supply device 34 arranged in the booster valve bracket 31, a pressurizing device 35 arranged on the booster valve bracket 31, and at least one exhaust muffler 36 arranged in the pneumatic component installation cabinet 34.

[0024] The pressure boosting valve bracket 31 is a rectangular box structure. One side of the box body is open and is provided with a cover plate fixed by fasteners. The bottom of the pressure boosting valve bracket 31 is fixed on the base 14 by fasteners for arranging the air supply device 34 and the pressurizing device 35.

[0025] The pneumatic component mounting cabinet 32 is a rectangular mounting groove arranged on the side plate 12, and the notch faces the outside of the frame 10 for mounting the pneumatic triple unit 33 and the exhaust silencer 36, facilitating connection with an external air pump and exhausting.

[0026] The pneumatic triple unit 33, namely F.R.L., in pneumatic technology, assembling three air source treatment components of an air filter (F), a pressure reducing valve (R), and an oiler (L) together is called a pneumatic triple unit, used to purify and filter the air source entering the pneumatic instrument and reduce the pressure to the rated air source pressure supplied to the instrument, equivalent to the function of a power transformer in an electric circuit. In this embodiment, it is the first component connected to the air pump. Its structure and principle are prior arts well-known to those skilled in the art, so only its function is briefly described here without detailed description of its structure and principle one by one.

[0027] The air supply device 34 includes a two-position five-way solenoid valve 341 arranged in the pressure boosting valve bracket 31, an air supply pipe 342 connecting the two-position five-way solenoid valve 341 and the pneumatic triple unit 33, a low-pressure air supply pipe 343 connecting the two-position five-way solenoid valve 341 and the diaphragm pump 20, a high-pressure connecting pipe 344 connecting the two-position five-way solenoid valve 341 and the pressurizing device 35, and two empty exhaust pipes 345. The two-position five-way solenoid valve 341 is a basic automation component for controlling fluids and belongs to an actuator. It is a prior art. In this embodiment, it is controlled by the PCL intelligent control cabinet 40 to realize switching air supply for the low-pressure air supply pipe 343 and the high-pressure connecting pipe 344. One end of the air supply pipe 342 is connected to the air inlet hole of the two-position five-way solenoid valve 341, and the other end passes through the side plate 12 and is connected to the pneumatic triple unit 33 for air supply.

[0028] The pressurizing device 35 includes a pressure increasing valve 351 fixed on the pressure increasing valve bracket 31, and a high-pressure gas supply pipe 352 connecting the pressure increasing valve 351 and the diaphragm pump 20. The pressure increasing valve 351 is an industrial device that can proportionally convert low-pressure oil in a hydraulic transmission system into high-pressure oil. It is generally used as a pressure control valve on hydraulic or pneumatic equipment and is an existing technology. In this embodiment, by setting the pressure increasing valve 351, the air supply pressure is increased to achieve high-pressure air supply. The air inlet end of the pressure increasing valve 351 is connected to the five-port two-position solenoid valve 341 through the high-pressure connecting pipe 344, and the air outlet end is connected to the diaphragm pump 20 through the high-pressure gas supply pipe 352.

[0029] The exhaust muffler 36 is fixed on the pneumatic component installation cabinet 32, and the connection port passes through the pneumatic component installation cabinet 32 and is located inside the frame 10. It can be connected to the air outlet of the diaphragm pump 20 through a gas pipe to discharge the high-pressure gas in the diaphragm pump 20 to the outside of the equipment.

[0030] It can be conceived that the two gas supply pipelines branched from the air supply port of the five-port two-position solenoid valve 341 are arranged in parallel. One of them is pressurized by the pressure increasing valve 351 to form high-pressure air supply. Correspondingly, a Y-shaped tee 37 is provided at the air inlet of the diaphragm pump 20. One end is connected to the diaphragm pump 20, and the other two ends are respectively connected to the low-pressure gas supply pipe 343 and the high-pressure gas supply pipe 352 to realize the simultaneous connection of the two gas supply pipelines to the diaphragm pump 20. And gas check valves 38 are provided at the ends of the low-pressure gas supply pipe 343 and the high-pressure gas supply pipe 352 so that the two gas supply pipelines can be opened separately.

[0031] The PCL intelligent control cabinet 40 is fixed on the side plate 12 and is located on the side of the pressurizing and air supply system 30 far from the diaphragm pump 20. It controls components such as the five-port two-position solenoid valve 341, the gas check valve 38, and the pneumatic triple unit 33 respectively to perform intelligent management by setting values. The cabinet door of the PCL intelligent control cabinet 40 is connected to the side plate 12 by hinges. The PCL intelligent control cabinet 40 is a programmable control cabinet that can realize the control of motors and switches and has protection functions such as overload, short circuit, and phase loss protection. It is an existing technology widely used in industrial production and electrical structures and should be well-known to those skilled in the art. Therefore, only a brief description is given here, and the internal structure and components are not described in detail one by one.

[0032] Compared with the prior art, the high-pressure gas supply device for a pneumatic diaphragm pump provided by the present utility model provides a gas source for the diaphragm pump 20 by setting the gas supply device 34, meeting the usage requirements of the pneumatic diaphragm pump. By setting the booster valve 351, the gas is pressurized to increase the gas supply pressure, meeting the requirements of customers under high-pressure working conditions. At the same time, by setting the Y-shaped tee 37, the gas check valve 38 and the five-port two-position solenoid valve 341, two gas supply pipelines for high-pressure gas supply and low-pressure gas supply exist simultaneously, and the gas supply pipeline can be quickly switched, enabling the diaphragm pump 20 to be used under both high-pressure and low-pressure working conditions. Moreover, the structure is simple and the maintenance is convenient, meeting the needs of more customers. High-pressure transportation is achieved with a small-flow gas source, and the usage cost of the equipment is relatively low. Finally, by setting the PCL intelligent control cabinet 40, the equipment is intelligently controlled, the operation is simple and easy to master, and there are no technical requirements for the operator.

[0033] The above are only the preferred embodiments of the present utility model, and are not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements or improvements within the spirit of the present utility model are all covered by the claims of the present utility model.

Claims

1. A high-pressure air supply device for a pneumatic diaphragm pump, characterized in that: The high-pressure air supply device for the pneumatic diaphragm pump includes a frame, a diaphragm pump disposed within the frame, and a pressurized air supply system disposed on one side of the frame. The pressurized air supply system includes a booster valve bracket, a pneumatic component installation cabinet, a pneumatic triple unit disposed within the pneumatic component installation cabinet, an air supply device disposed within the booster valve bracket, and a pressurizing device disposed on the booster valve bracket. The air supply device includes a two-position five-way solenoid valve disposed within the booster valve bracket, an air supply pipe connecting the two-position five-way solenoid valve and the pneumatic triple unit, a low-pressure air supply pipe connecting the two-position five-way solenoid valve and the diaphragm pump, a high-pressure connecting pipe connecting the two-position five-way solenoid valve and the pressurizing device, and two empty exhaust pipes. One end of the air supply pipe is connected to the air inlet hole of the two-position five-way solenoid valve, and the other end is connected to the pneumatic triple unit. The pressurizing device includes a booster valve fixed on the booster valve bracket, and a high-pressure air supply pipe connecting the booster valve and the diaphragm pump. The air inlet end of the booster valve is connected to the two-position five-way solenoid valve through the high-pressure connecting pipe, and the air outlet end is connected to the diaphragm pump through the high-pressure air supply pipe. A Y-shaped tee is provided at the air inlet of the diaphragm pump, one end is connected to the diaphragm pump, and the other two ends are respectively connected to the low-pressure air supply pipe and the high-pressure air supply pipe. Gas check valves are provided at the ends of the low-pressure air supply pipe and the high-pressure air supply pipe.

2. The high-pressure air supply device for a pneumatic diaphragm pump according to claim 1, characterized in that: The high-pressure air supply device for the pneumatic diaphragm pump further includes a PCL intelligent control cabinet disposed on one side of the pressurized air supply system.

3. The high-pressure air supply device for a pneumatic diaphragm pump according to claim 2, characterized in that: The frame includes a fixed frame, a plurality of side plates disposed between the fixed frames, a top surface disposed on the fixed frame, and a base opposite to the top surface.

4. The high-pressure air supply device for a pneumatic diaphragm pump according to claim 3, characterized in that: The PCL intelligent control cabinet is fixed on the side plate and is located on the side of the pressurized air supply system away from the diaphragm pump, and controls the two-position five-way solenoid valve, the gas check valve, and the pneumatic triple unit respectively.

5. The high-pressure air supply device for a pneumatic diaphragm pump according to claim 3, characterized in that: At least four shock-absorbing columns are provided between the feet of the diaphragm pump and the base, and the feed pipe and the discharge pipe of the diaphragm pump respectively extend through and pass through the side plates.

6. The high-pressure air supply device for a pneumatic diaphragm pump according to claim 1, wherein: The pressurized air supply system further includes at least one exhaust muffler disposed within the pneumatic component installation cabinet.

7. The high-pressure air supply device for a pneumatic diaphragm pump according to claim 6, characterized in that: The exhaust muffler is fixed within the pneumatic component installation cabinet, the connection port passes through the pneumatic component installation cabinet and is located within the frame, and is connected to the air outlet of the diaphragm pump through a gas pipe.

8. The high-pressure air supply device for a pneumatic diaphragm pump according to claim 3, characterized in that: The bottom of the booster valve bracket is fixed to the base through fasteners, and the pneumatic component installation cabinet is a rectangular installation groove disposed on the side plate, and the notch faces the outside of the frame.

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