CN112780534A

CN112780534A - Pneumatic diaphragm pump with self-cleaning function

Info

Publication number: CN112780534A
Application number: CN202110282422.2A
Authority: CN
Inventors: 李春强; 梁武
Original assignee: Shenzhen Sendiyuan Pneumatic Equipment Manufacture Co ltd
Current assignee: Shenzhen Sendiyuan Pneumatic Equipment Manufacture Co ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-05-11
Anticipated expiration: 2041-03-16
Also published as: CN112780534B

Abstract

The invention relates to the technical field of pneumatic diaphragm pumps, and discloses a pneumatic diaphragm pump with an automatic cleaning function, which comprises a pump main body, wherein an air valve is fixedly arranged inside the pump main body, the inner wall of a pump body is fixedly arranged inside the pump main body, a working shaft of the pneumatic diaphragm pump is fixedly arranged inside the pump main body, an external shaft block is fixedly arranged outside the working shaft of the pneumatic diaphragm pump, the external side of the external shaft block is movably connected with an external shaft center, and the external side of the external shaft center is fixedly connected with a shaft rod. This pneumatic diaphragm pump with self-cleaning function, through the synchronous work of pump body working shaft along with the work of pump main part, drive screw synchronous rotation, drive screw drives the switching axle center then and rotates, and the switching axle center drives the movable rod motion immediately, and the movable rod drives clean board and clean brush motion then, and clean brush cleans the pump body inner wall that sprays clean water immediately, guarantees the cleanness of pump body inner wall.

Description

Pneumatic diaphragm pump with self-cleaning function

Technical Field

The invention relates to the technical field of pneumatic diaphragm pumps, in particular to a pneumatic diaphragm pump with an automatic cleaning function.

Background

At present, in the industries of chemical industry, petroleum, printing and dyeing, medicine, food, electroplating and the like, the pneumatic diaphragm pump is widely applied to conveying liquids such as petroleum, chemical and the like, and various characteristics of the media require the pneumatic diaphragm pump to be resistant to corrosion, abrasion and leakage; the pneumatic diaphragm pump is mainly used for conveying toxic and harmful media, strong acid, strong alkali, strong corrosion, flammability and explosiveness, high viscosity and particle-containing media in the production flow of enterprises such as petroleum, chemical engineering, pharmacy, printing and dyeing, electroplating, food, environmental protection and the like. The pneumatic diaphragm pump mainly comprises a transmission part and a diaphragm cylinder head. The transmission part is a driving mechanism for driving the diaphragm to swing, and the transmission form of the driving mechanism is mechanical transmission, hydraulic transmission, pneumatic transmission and the like. The head part of the pneumatic diaphragm pump cylinder is mainly separated from the conveyed liquid and the working liquid by a diaphragm, when the diaphragm moves to one side of the transmission mechanism, the liquid is sucked by negative pressure when the pump cylinder works, and when the diaphragm moves to the other side, the liquid is discharged. The liquid to be transported is separated from the working liquid by the diaphragm in the pump cylinder, and is in contact with only the pump cylinder, the suction valve, the discharge valve, and the diaphragm, but not with the plunger and the sealing device. After pneumatic diaphragm pump long-term work, other impurity such as a large amount of greasy dirt can be adhered to along with work in inside, because these greasy dirt impurity are in pneumatic diaphragm pump's inside, so subsequent cleanness often need demolish the cleanness to pneumatic diaphragm pump, complex operation is troublesome, consequently, we have proposed a pneumatic diaphragm pump with self-cleaning function.

Disclosure of Invention

Technical scheme

In order to solve the above problems, the present invention provides the following technical solutions: a pneumatic diaphragm pump with an automatic cleaning function comprises a pump main body, wherein an air valve is fixedly arranged inside the pump main body, the inner wall of a pump body is fixedly arranged inside the pump main body, a pneumatic diaphragm pump working shaft is fixedly arranged inside the pump main body, an external shaft block is fixedly arranged outside the pneumatic diaphragm pump working shaft, an external shaft core is movably connected outside the external shaft block, a shaft rod is fixedly connected outside the external shaft core, one end of the external shaft core, far away from the external shaft block, is fixedly connected with a push rod, one end of the push rod, far away from the external shaft core, is fixedly connected with a push spring, one end of the push spring, far away from the push rod, is fixedly connected with a pressing diaphragm, a pressing assembly is fixedly connected outside the pressing diaphragm, a flexible cleaning bag is lapped on the inner side of the pressing diaphragm, and a cleaning pipeline is fixedly connected outside, the outside fixedly connected with of clean pipeline cleans the shower nozzle, the inside movable mounting of pump main part has pump body working shaft, the outside swing joint of pump body working shaft has drive screw.

Preferably, the outer side of the driving screw is sleeved with a switching shaft center.

Preferably, the outer side of the switching shaft center is fixedly connected with a movable rod.

Preferably, the outer side of the movable rod is fixedly connected with a cleaning plate.

Preferably, one end of the cleaning plate, which is far away from the movable rod, is fixedly provided with a cleaning brush.

Preferably, the interior of the flexible cleaning bladder is filled with cleaning water.

A method for preparing the cleaning water for cleaning the air operated diaphragm pump as described above, characterized in that: calculated according to the proportion, the composition is prepared from the following components in proportion: 8% of amino acid surfactant, 10% of waterborne acrylic acid modified epoxy emulsion, 5% of preservative, 5% of fatty acid modified polyurethane emulsion, 6% of citric acid, 6% of polyvinylidene chloride emulsion, 7% of propylene glycol methyl ether solution, 3% of titanium dioxide, 2% of potassium pyrophosphate, 8% of organic silicone powder, 3% of pH regulator, 3% of ethanolamine, 6% of lotus leaf hydrophobic agent, 3% of waterproof and oil-proof agent, 5% of thickening agent and 20% of purified water;

the method comprises the following steps:

s1, mixing 20% of purified water, 3% of ethanolamine, 5% of fatty acid modified polyurethane emulsion, 6% of citric acid, 6% of polyvinylidene chloride emulsion, 2% of potassium pyrophosphate and 8% of organic silicone powder according to the raw material ratio, and stirring at the speed of 600-800r/min for 20-35 minutes;

s2, after the stirring process is finished, adding 8% of amino acid surfactant into a material preparation pot according to the raw material proportion, adding 7% of propylene glycol monomethyl ether solution and 3% of titanium dioxide at the rotating speed of 500-550 r/min, and stirring at the speed of 400-550r/min for 9-18 minutes;

s3, sequentially adding 10% of waterborne acrylic acid modified epoxy emulsion, 5% of preservative, 3% of PH regulator, 6% of lotus leaf hydrophobic agent and 3% of waterproof and oil-proof agent into a material preparation pot, and stirring at the speed of 100-1100r/min for about 20 minutes;

s4, adding the mixture stirred in S1, S2 and S3 into a preparation pot, stirring at the speed of 1300-1450r/min for 15-20 minutes, then adding 5% of thickening agent, stirring at the speed of 1000-1100r/min for 15-20 minutes, and adjusting the viscosity to be qualified.

Advantageous effects

Compared with the prior art, the invention provides a pneumatic diaphragm pump with an automatic cleaning function, which has the following beneficial effects:

1. this pneumatic diaphragm pump with self-cleaning function, work through pneumatic diaphragm pump working shaft, then drive the vibration thereupon of the outer side connection of external axle piece, the external axle center of butt is made things convenient for in the vibration of external axle piece, external axle center promotes the axostylus axostyle to the outside then, the axostylus axostyle pushes away the pole to the outside butt immediately, the push away the spring and then push away the diaphragm to the outside, press the diaphragm and then push away to the inboard, press the diaphragm and then take to press down the subassembly and extrude flexible clean bag to the inboard, the compression of flexible clean bag pressurized, its inside clean water passes clean pipeline then and spouts from clean shower nozzle, spray pump body inner wall.

2. This pneumatic diaphragm pump with self-cleaning function, through the synchronous work of pump body working shaft along with the work of pump main part, drive screw synchronous rotation, drive screw drives the switching axle center then and rotates, and the switching axle center drives the movable rod motion immediately, and the movable rod drives clean board and clean brush motion then, and clean brush cleans the pump body inner wall that sprays clean water immediately, guarantees the cleanness of pump body inner wall.

Drawings

FIG. 1 is a schematic view of the pump body connection structure of the present invention;

FIG. 2 is a schematic view of the connection structure of the flexible cleaning bag of the present invention;

FIG. 3 is a schematic view of the shaft connecting structure of the present invention;

FIG. 4 is a schematic view of a cleaning nozzle assembly according to the present invention;

FIG. 5 is a schematic view of the connection structure of the pump body working shaft according to the present invention;

FIG. 6 is a schematic view of the connection structure of the cleaning brush of the present invention.

In the figure: 1. a pump body; 2. an air valve; 3. the inner wall of the pump body; 4. a working shaft of the pneumatic diaphragm pump; 5. a shaft block is externally connected; 6. the axis is connected externally; 7. a shaft lever; 8. a push rod; 9. a push spring; 10. pressing the diaphragm; 11. a pressing assembly; 12. a flexible cleaning bladder; 13. cleaning the pipeline; 14. cleaning the spray head; 15. a pump body working shaft; 16. a drive screw; 17. transferring the axis; 18. a movable rod; 19. cleaning the plate; 20. the brush is cleaned.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-6, a pneumatic diaphragm pump with an automatic cleaning function comprises a pump body 1, an air valve 2 is fixedly installed inside the pump body 1, a pump body inner wall 3 is fixedly installed inside the pump body 1, a pneumatic diaphragm pump working shaft 4 is fixedly installed inside the pump body 1, an external shaft block 5 is fixedly installed outside the pneumatic diaphragm pump working shaft 4, an external shaft core 6 is movably connected outside the external shaft block 5, a shaft rod 7 is fixedly connected outside the external shaft core 6, one end of the external shaft core 6, which is far away from the external shaft block 5, is fixedly connected with a push rod 8, one end of the push rod 8, which is far away from the external shaft core 6, is fixedly connected with a push spring 9, one end of the push spring 9, which is far away from the push rod 8, is fixedly connected with a pressing diaphragm 10, a pressing assembly 11 is fixedly connected outside the pressing diaphragm 10, and a flexible cleaning, a cleaning pipeline 13 is fixedly connected to the outer side of the flexible cleaning bag 12.

A cleaning spray head 14 is fixedly connected to the outer side of the cleaning pipeline 13; through the work of the working shaft 4 of the pneumatic diaphragm pump, the external shaft block 5 connected with the outer side of the working shaft is driven to vibrate therewith, the vibration of the external shaft block 5 abuts against the external shaft center 6, the external shaft center 6 pushes the shaft rod 7 outwards, the shaft rod 7 pushes the push rod 8 outwards, the push rod 8 pushes the push spring 9 outwards, the push spring 9 pushes the press diaphragm 10 outwards, the press diaphragm 10 pushes the inner side, the press diaphragm 10 drives the press component 11 to extrude the flexible cleaning bag 12 inwards, the flexible cleaning bag 12 is compressed, and the cleaning water inside the flexible cleaning bag passes through the cleaning pipeline 13 and is sprayed out from the cleaning nozzle 14 to be sprayed to the inner wall 3 of the pump body.

A pump body working shaft 15 is movably mounted inside the pump main body 1, a driving screw 16 is movably connected to the outer side of the pump body working shaft 15, a switching shaft center 17 is sleeved on the outer side of the driving screw 16, a movable rod 18 is fixedly connected to the outer side of the switching shaft center 17, a cleaning plate 19 is fixedly connected to the outer side of the movable rod 18, and a cleaning brush 20 is fixedly mounted at one end, far away from the movable rod 18, of the cleaning plate 19; the pump body working shaft 15 works synchronously along with the work of the pump body 1 to drive the driving screw 16 to rotate synchronously, the driving screw 16 then drives the switching shaft center 17 to rotate, the switching shaft center 17 then drives the movable rod 18 to move, the movable rod 18 then drives the cleaning plate 19 and the cleaning brush 20 to move, and the cleaning brush 20 then cleans the inner wall 3 of the pump body sprayed with cleaning water, so that the cleanness of the inner wall 3 of the pump body is ensured.

Example two:

a preparation method of cleaning water for cleaning a pneumatic diaphragm pump is prepared by the following components in proportion: 8% of amino acid surfactant, 10% of waterborne acrylic acid modified epoxy emulsion, 5% of preservative, 5% of fatty acid modified polyurethane emulsion, 6% of citric acid, 6% of polyvinylidene chloride emulsion, 7% of propylene glycol methyl ether solution, 3% of titanium dioxide, 2% of potassium pyrophosphate, 8% of organic silicone powder, 3% of pH regulator, 3% of ethanolamine, 6% of lotus leaf hydrophobic agent, 3% of waterproof and oil-proof agent, 5% of thickening agent and 20% of purified water.

The method sequentially comprises the following steps:

step A, mixing 20% of purified water, 3% of ethanolamine, 5% of fatty acid modified polyurethane emulsion, 6% of citric acid, 6% of polyvinylidene chloride emulsion, 2% of potassium pyrophosphate and 8% of organic silicone powder according to the raw material ratio, and stirring at the speed of 600-800r/min for 20-35 minutes;

step B, after the stirring process is finished, adding 8% of amino acid surfactant into a material preparation pot according to the raw material ratio, adding 7% of propylene glycol monomethyl ether solution and 3% of titanium dioxide at the rotating speed of 500-550 r/min, and stirring for 9-18 minutes at the same time at the speed of 400-550 r/min;

step C, sequentially adding 10% of waterborne acrylic acid modified epoxy emulsion, 5% of preservative, 3% of PH regulator, 6% of lotus leaf hydrophobic agent and 3% of waterproof and oil-proof agent into a material preparation pot, and stirring at the speed of 100-;

and D, adding the mixture stirred in the step A, B, B into a preparation pot, stirring for 15-20 minutes at the speed of 1300-1450r/min, then adding 5% of thickening agent, stirring for 15-20 minutes at the speed of 1000-1100r/min, and adjusting the viscosity to be qualified.

The working principle is as follows: when the pump main body 1 works, the pneumatic diaphragm pump working shaft 4 inside the pump main body works along with the pump main body, then the external shaft block 5 connected to the outer side of the pump main body is driven to vibrate along with the pump working shaft, the vibration of the external shaft block 5 abuts against the external shaft center 6, the external shaft center 6 then pushes the shaft rod 7 outwards, the shaft rod 7 then abuts against the push rod 8 outwards, the push rod 8 then abuts against the push spring 9 outwards, the push spring 9 then pushes the press diaphragm 10 outwards, the press diaphragm 10 then pushes inwards, the press diaphragm 10 then drives the press assembly 11 to press the flexible cleaning bag 12 inwards, the flexible cleaning bag 12 is compressed, cleaning water inside the pump main body passes through the cleaning pipeline 13 and is sprayed out from the cleaning spray head 14 to the inner wall 3 of the pump body, meanwhile, the pump working shaft 15 synchronously works along with the work of the pump main body 1, the drive screw 16 to synchronously rotate, the switching shaft center 17 immediately drives the movable rod 18 to move, the movable rod 18 then drives the cleaning plate 19 and the cleaning brush 20 to move, and the cleaning brush 20 immediately cleans the inner wall 3 of the pump body sprayed with cleaning water, so that the cleanness of the inner wall 3 of the pump body is ensured.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An air operated diaphragm pump with an automatic cleaning function, comprising a pump main body (1), characterized in that: an air valve (2) is fixedly arranged inside the pump main body (1), a pump body inner wall (3) is fixedly arranged inside the pump main body (1), a pneumatic diaphragm pump working shaft (4) is fixedly arranged inside the pump main body (1), an external shaft block (5) is fixedly arranged outside the pneumatic diaphragm pump working shaft (4), an external shaft core (6) is movably connected outside the external shaft block (5), a shaft rod (7) is fixedly connected outside the external shaft core (6), a push rod (8) is fixedly connected to one end, far away from the external shaft block (5), of the external shaft core (6) of the push rod (8), a push spring (9) is fixedly connected to one end, far away from the push rod (8), of the push spring (9), a press diaphragm (10) is fixedly connected to one end, far away from the push rod (8), and a press assembly (11) is fixedly connected to the outside of the press diaphragm (10), the inboard overlap joint of pressing diaphragm (10) has flexible clean bag (12), the outside fixedly connected with of flexible clean bag (12) cleans pipeline (13), the outside fixedly connected with of clean pipeline (13) cleans shower nozzle (14), the inside movable mounting of pump main part (1) has pump body working shaft (15), the outside swing joint of pump body working shaft (15) has drive screw (16).

2. An air operated diaphragm pump having a self-cleaning function according to claim 1, wherein: the outer side of the driving screw rod (16) is sleeved with a switching shaft center (17).

3. An air operated diaphragm pump having a self-cleaning function according to claim 2, wherein: the outer side of the switching shaft center (17) is fixedly connected with a movable rod (18).

4. An air operated diaphragm pump having a self-cleaning function according to claim 3, wherein: the outer side of the movable rod (18) is fixedly connected with a cleaning plate (19).

5. An air operated diaphragm pump having a self-cleaning function according to claim 4, wherein: one end of the cleaning plate (19) far away from the movable rod (18) is fixedly provided with a cleaning brush (20).

6. An air operated diaphragm pump with automatic cleaning function according to claim 1, wherein cleaning water is put inside the flexible cleaning bag (12).

7. A method of producing cleaning water for cleaning an air operated diaphragm pump according to claim 1, characterized in that: calculated according to the proportion, the composition is prepared from the following components in proportion: 8% of amino acid surfactant, 10% of waterborne acrylic acid modified epoxy emulsion, 5% of preservative, 5% of fatty acid modified polyurethane emulsion, 6% of citric acid, 6% of polyvinylidene chloride emulsion, 7% of propylene glycol methyl ether solution, 3% of titanium dioxide, 2% of potassium pyrophosphate, 8% of organic silicone powder, 3% of pH regulator, 3% of ethanolamine, 6% of lotus leaf hydrophobic agent, 3% of waterproof and oil-proof agent, 5% of thickening agent and 20% of purified water;

the method comprises the following steps: