Pneumatic diaphragm pump with temperature control function

Abstract

The utility model relates to the technical field of pneumatic diaphragm pumps, and discloses a pneumatic diaphragm pump with a temperature control function, the upper end and the lower end of a diaphragm pump body are respectively provided with an inlet pipeline and an outlet pipeline, an adjusting valve plate is arranged in the inlet pipeline and the outlet pipeline, and a driving rod is fixedly arranged in the middle of the adjusting valve plate. The adjusting valve plate is arranged in the inlet and outlet pipeline and linked with the driving rod, the connecting rod and the electric cylinder, when the output end of the electric cylinder stretches out and draws back, the connecting rod can be driven to swing through the fixing ring, and then the driving rod is driven to rotate so as to adjust the angle of the adjusting valve plate, change the internal circulation sectional area of the pipeline and achieve dynamic control over the medium flow. When the flow is increased, the medium flow speed is increased, the residence time is shortened, the heat exchange capacity with the pipeline wall and the external temperature control assembly is reduced, excessive temperature rising or cooling is avoided, when the flow is reduced, the medium flow speed is reduced, the residence time is prolonged, the heat exchange effect is enhanced, and the deep temperature control requirement is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to pneumatic diaphragm pump technical field especially relates to a pneumatic diaphragm pump with temperature control function. BACKGROUND

[0002] Pneumatic diaphragm pump is widely used in chemical industry, food, medicine, environmental protection and other fields because of strong corrosion resistance, high self-suction capacity, can transport the medium containing particle and other advantages.In the transportation scene of high temperature, low temperature or temperature sensitive medium, such as molten resin, biological medicine, low temperature liquefied gas, accurate control of pump body and medium temperature is very important to ensure the stability of process flow, medium physical and chemical properties;

[0003] The traditional pneumatic diaphragm pump with temperature control function currently generally connects heat exchanger, temperature control box and other independent devices outside pump inlet and outlet pipeline, indirectly controls temperature through the mode of temperature control first and then transportation, leads to high system complexity, large energy consumption, and the medium in the pipeline may still have temperature fluctuation due to environmental heat dissipation or friction heat generation in the transportation process, and dynamic real-time regulation and control cannot be realized. UTILITY MODEL CONTENT

[0004] In view of the problems that the mode of temperature control first and then transportation indirectly controls temperature, leads to high system complexity, large energy consumption, and the medium in the pipeline may still have temperature fluctuation due to environmental heat dissipation or friction heat generation in the transportation process, and dynamic real-time regulation and control cannot be realized, the utility model provides a pneumatic diaphragm pump with temperature control function, has the advantages that dynamic heat exchange can be realized by changing medium flow and flow state in real time, and independent temperature control equipment does not need to be connected outside to realize accurate temperature control, and solves the problems mentioned in the background art.

[0005] The utility model provides following technical scheme: a pneumatic diaphragm pump with temperature control function, including diaphragm pump body, the upper and lower ends of diaphragm pump body are installed with inlet and outlet pipeline respectively, the inside of inlet and outlet pipeline is equipped with adjusting valve plate, the middle part of adjusting valve plate is fixedly installed with drive rod, the bottom of drive rod is rotatably installed in the inner wall bottom of inlet and outlet pipeline, the other end of drive rod penetrates inlet and outlet pipeline and is fixedly installed with connecting rod, the outside of inlet and outlet pipeline is fixedly installed with fixed seat, the side of fixed seat is fixedly installed with concave plate, the inboard of concave plate is hingedly installed with electric cylinder, the output of electric cylinder is fixedly installed with fixed ring, the side away from drive rod of connecting rod is fixedly installed with screw hole column, the inboard of fixed ring is rotatably installed on the surface of screw hole column.

[0006] Preferably, the upper and lower ends of the diaphragm pump body are fixedly installed with a connecting pipe, and the connecting pipe is connected with the inlet and outlet pipeline through a flange opening.

[0007] Through the setting of the connecting pipe, the pipe is connected with the inlet and outlet pipelines at both ends through flange mouths, realizing quick installation and dismounting of the diaphragm pump body and the pipelines and improving the connection stability.

[0008] Preferably, the inlet and outlet pipelines are fixedly installed with bearing seats on the surface of one end of the driving rod, the upper end of the bearing seat is internally installed with a bearing ring, and the upper end of the driving rod is installed on the inner side of the bearing ring.

[0009] Through the setting of the bearing seat and the bearing ring, the upper end of the driving rod is supported and the rotating friction is reduced, and the transmission stability and service life of the driving rod are improved.

[0010] Preferably, the electric cylinder is provided with a connecting hole on the side close to the concave plate, the bottom of the concave plate is provided with a bolt column, and the upper end of the bolt column extends to the upper end of the concave plate through the bottom of the concave plate and the connecting hole.

[0011] Through the setting of the bolt column extending through the connecting hole, the electric cylinder and the concave plate are detachably hinged, and the electric cylinder parts can be quickly dismounted and maintained.

[0012] Preferably, the upper end of the bolt column is internally provided with a threaded hole, the upper end of the bolt column is provided with a first limiting bolt, and the bottom of the first limiting bolt is threadedly installed in the upper end of the bolt column.

[0013] Through the cooperation of the first limiting bolt and the threaded hole of the bolt column, the installation position of the electric cylinder can be fixed, the angle stability when the electric cylinder drives the connecting rod is ensured, and the flow regulation accuracy is guaranteed.

[0014] Preferably, the upper end of the threaded hole column is provided with a second limiting bolt, and the bottom of the second limiting bolt is threadedly installed in the upper end of the threaded hole column.

[0015] Through the setting of the second limiting bolt, the axial movement range of the fixing ring on the threaded hole column can be limited, the transmission stability when the electric cylinder drives the connecting rod is ensured, and the regulation accuracy failure is avoided.

[0016] The utility model has the following effects:

[0017] 1. By setting the adjusting valve plate in the inlet and outlet pipeline, and connecting the adjusting valve plate with the driving rod, the connecting rod and the electric cylinder, when the output end of the electric cylinder is telescopic, the connecting rod can be driven to swing through the fixing ring, and then the driving rod is driven to rotate to adjust the angle of the adjusting valve plate, the internal flow area of the pipeline is changed, the dynamic control of medium flow is realized, when the flow increases, the medium flow rate increases and the residence time shortens, the heat exchange amount with the pipeline wall and the external temperature control assembly is reduced, excessive heating or cooling is avoided, when the flow decreases, the medium flow rate decreases and the residence time is prolonged, the heat exchange effect is enhanced, and the deep temperature control requirement is met.

[0018] 2. By setting the bolt column through the concave plate bottom and the connecting hole of the electric cylinder, and using the threaded connection structure of the limiting bolt, the electric cylinder and the concave plate form a detachable hinged connection, when the electric cylinder needs to be maintained, repaired or replaced, only need to loosen the limiting bolt, pull out the bolt column, the electric cylinder can be quickly disassembled from the concave plate, and the fixed ring of the electric cylinder is rotated on one side of the limiting bolt, the fixed ring can be disassembled from the outside of the threaded hole column, without complex tools or cumbersome operation, and the maintenance convenience of the temperature control driving part is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view structure schematic diagram of the utility model;

[0020] Figure 2 It is an inlet and outlet pipeline inside structure schematic diagram of the utility model;

[0021] Figure 3 It is a regulating valve plate section structure schematic diagram of the utility model;

[0022] Figure 4 It is an inlet and outlet pipeline split structure schematic diagram of the utility model;

[0023] Figure 5 It is a regulating valve plate section structure schematic diagram of the utility model; Figure 4 It is an enlarged structure schematic diagram of A in the utility model.

[0024] In the drawing: 1, diaphragm pump body; 2, connecting pipe; 3, inlet and outlet pipeline; 4, regulating valve plate; 5, drive rod; 6, bearing seat; 7, bearing ring; 8, connecting rod; 9, fixed seat; 10, concave plate; 11, electric cylinder; 12, connecting hole; 13, bolt column; 14, limiting bolt; 15, fixed ring; 16, threaded hole column; 17, limiting bolt. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0026] Please refer to Figures 1-4The utility model provides a pneumatic diaphragm pump with temperature control function, including diaphragm pump body 1, the upper and lower both ends of diaphragm pump body 1 are installed with inlet and outlet pipeline 3 respectively, the inside of inlet and outlet pipeline 3 is equipped with adjusting valve plate 4, the middle part of adjusting valve plate 4 is fixedly installed with drive rod 5, the bottom of drive rod 5 is rotatably installed in the inner wall bottom of inlet and outlet pipeline 3, the other end of drive rod 5 penetrates inlet and outlet pipeline 3 and is fixedly installed with connecting rod 8, adjusting valve plate 4 is rotatably connected with drive rod 5, electric cylinder 11 drives drive rod 5 to drive adjusting valve plate 4 to rotate, and real-time changes the flow passage area in inlet and outlet pipeline 3, and dynamically adjusts medium flow and flow state,

[0027] The utility model provides a pneumatic diaphragm pump with temperature control function, including diaphragm pump body 1, the upper and lower both ends of diaphragm pump body 1 are installed with inlet and outlet pipeline 3 respectively, the inside of inlet and outlet pipeline 3 is equipped with adjusting valve plate 4, the middle part of adjusting valve plate 4 is fixedly installed with drive rod 5, the bottom of drive rod 5 is rotatably installed in the inner wall bottom of inlet and outlet pipeline 3, the other end of drive rod 5 penetrates inlet and outlet pipeline 3 and is fixedly installed with connecting rod 8, adjusting valve plate 4 is rotatably connected with drive rod 5, electric cylinder 11 drives drive rod 5 to drive adjusting valve plate 4 to rotate, and real-time changes the flow passage area in inlet and outlet pipeline 3, and dynamically adjusts medium flow and flow state,

[0028] Please refer to Figures 2-5 The utility model provides a pneumatic diaphragm pump with temperature control function, including diaphragm pump body 1, the upper and lower both ends of diaphragm pump body 1 are installed with inlet and outlet pipeline 3 respectively, the inside of inlet and outlet pipeline 3 is equipped with adjusting valve plate 4, the middle part of adjusting valve plate 4 is fixedly installed with drive rod 5, the bottom of drive rod 5 is rotatably installed in the inner wall bottom of inlet and outlet pipeline 3, the other end of drive rod 5 penetrates inlet and outlet pipeline 3 and is fixedly installed with connecting rod 8, adjusting valve plate 4 is rotatably connected with drive rod 5, electric cylinder 11 drives drive rod 5 to drive adjusting valve plate 4 to rotate, and real-time changes the flow passage area in inlet and outlet pipeline 3, and dynamically adjusts medium flow and flow state,

[0029] The electric cylinder 11 is provided with a connecting hole 12 on the side close to the concave plate 10, and the bottom of the concave plate 10 is provided with a bolt column 13, the upper end of the bolt column 13 extends to the upper end of the concave plate 10 through the bottom of the concave plate 10 and the connecting hole 12, the bolt column 13 is arranged to extend through the bottom of the concave plate 10 and the connecting hole 12 of the electric cylinder 11, and a connecting structure is formed by using a first limiting bolt 14 screwed and fixed, so that the electric cylinder 11 and the concave plate 10 are connected in a detachable hinged manner, when the electric cylinder 11 needs to be maintained, a screw hole is formed in the inner side of the upper end of the bolt column 13, the upper end of the bolt column 13 is provided with the first limiting bolt 14, the bottom of the first limiting bolt 14 is screwed and installed in the upper end of the bolt column 13, the upper end of the screw hole column 16 is provided with a second limiting bolt 17, and the bottom of the second limiting bolt 17 is screwed and installed in the inner side of the upper end of the screw hole column 16, when overhauling or replacing, only the first limiting bolt 14 needs to be loosened and the bolt column 13 is pulled out, so that the electric cylinder 11 can be quickly detached from the concave plate 10, and the fixed ring 15 of the electric cylinder 11 rotates the second limiting bolt 17 on one side, so that the fixed ring 15 can be detached from the outer side of the screw hole column 16, without the need for complex tools or complicated operation, and the maintenance convenience of the temperature control driving part is significantly improved.

[0030] Working principle: in specific use, first, the target temperature value of the medium is set through the external control system, when the pneumatic diaphragm pump starts to transport the medium, if the medium temperature needs to be adjusted, the control system immediately sends an instruction to the electric cylinder 11, the electric cylinder 11 receives the instruction, pushes or pulls the connecting rod 8 through the fixed ring 15, the connecting rod 8 drives the driving rod 5 to rotate around the bearing ring 7 in the bearing seat 6, and then the adjusting valve plate 4 rotates in the inlet and outlet pipeline 3;

[0031] When the medium temperature is higher than the target value and needs to be quickly cooled, the electric cylinder 11 drives the adjusting valve plate 4 to rotate to a large angle with the medium flow direction, reduces the pipe flow area, forces the medium to pass through in a low-speed turbulent state, the low speed prolongs the residence time of the medium in the pipeline, and facilitates the heat exchange with the pipeline wall, on the contrary, if the medium temperature is close to the target value, the control system instructs the electric cylinder 11 to adjust the adjusting valve plate 4 to a small angle, so that the medium passes through in a high-speed laminar flow, reduces excessive heat exchange and ensures the transportation efficiency;

[0032] In this process, the bearing seat 6 and the bearing ring 7 reduce the rotating friction of the driving rod 5, ensure the sensitivity and accuracy of the angle adjustment of the adjusting valve plate 4, and the flange-connected inlet and outlet pipeline 3 and the connecting pipe 2 ensure the sealing of the medium transportation, avoid the influence of leakage on the temperature control effect, when the electric cylinder 11 and other parts need to be maintained, the electric cylinder 11 can be quickly detached from the concave plate 10 by loosening the first limiting bolt 14 and pulling out the bolt column 13, without affecting the normal operation of other structures of the pump body, and after maintenance, the flow and temperature control linkage adjustment function can be restored by reinstalling, so that the medium temperature can be dynamically and real-timely adjusted.

Claims

1. A pneumatic diaphragm pump with temperature control function, comprising a diaphragm pump body (1), characterized in that: The upper and lower ends of the diaphragm pump body (1) are respectively provided with inlet and outlet pipelines (3), the inside of the inlet and outlet pipelines (3) is provided with an adjusting valve plate (4), the middle part of the adjusting valve plate (4) is fixedly provided with a driving rod (5), the bottom of the driving rod (5) is rotatably installed on the inner wall bottom of the inlet and outlet pipelines (3), the other end of the driving rod (5) penetrates the inlet and outlet pipelines (3) and is fixedly provided with a connecting rod (8), the outside of the inlet and outlet pipelines (3) is fixedly provided with a fixed seat (9), the side of the fixed seat (9) is fixedly provided with a concave plate (10), the inside of the concave plate (10) is hingedly provided with an electric cylinder (11), the output end of the electric cylinder (11) is fixedly provided with a fixed ring (15), the side, away from the driving rod (5), of the connecting rod (8) is fixedly provided with a threaded hole column (16), the inside of the fixed ring (15) is rotatably installed on the surface of the threaded hole column (16).

2. The air-operated diaphragm pump with temperature control function according to claim 1, characterized in that: The upper and lower ends of the diaphragm pump body (1) are respectively provided with inlet and outlet pipelines (3), the inside of the inlet and outlet pipelines (3) is provided with an adjusting valve plate (4), the middle part of the adjusting valve plate (4) is fixedly provided with a driving rod (5), the bottom of the driving rod (5) is rotatably installed on the inner wall bottom of the inlet and outlet pipelines (3), the other end of the driving rod (5) penetrates the inlet and outlet pipelines (3) and is fixedly provided with a connecting rod (8), the outside of the inlet and outlet pipelines (3) is fixedly provided with a fixed seat (9), the side of the fixed seat (9) is fixedly provided with a concave plate (10), the inside of the concave plate (10) is hingedly provided with an electric cylinder (11), the output end of the electric cylinder (11) is fixedly provided with a fixed ring (15), the side, away from the driving rod (5), of the connecting rod (8) is fixedly provided with a threaded hole column (16), the inside of the fixed ring (15) is rotatably installed on the surface of the threaded hole column (16).

3. The air operated diaphragm pump with temperature control function according to claim 1, characterized in that: The surface of the end, close to the driving rod (5), of the inlet and outlet pipelines (3) is fixedly provided with a bearing seat (6), the inside of the upper end of the bearing seat (6) is provided with a bearing ring (7), and the upper end of the driving rod (5) is installed on the inside of the bearing ring (7).

4. The air operated diaphragm pump with temperature control function according to claim 1, characterized in that: The side, close to the concave plate (10), of the electric cylinder (11) is provided with a connecting hole (12), the bottom of the concave plate (10) is provided with a bolt column (13), the upper end of the bolt column (13) extends to the upper end of the concave plate (10) by penetrating the bottom of the concave plate (10) and the connecting hole (12).

5. The air operated diaphragm pump with temperature control function according to claim 4, characterized in that: The upper end of the bolt column (13) is provided with a threaded hole, the upper end of the bolt column (13) is provided with a first limiting bolt (14), and the bottom of the first limiting bolt (14) is threadedly installed on the upper end of the bolt column (13).

6. The air operated diaphragm pump with temperature control function according to claim 1, characterized in that: The upper end of the threaded hole column (16) is provided with a second limiting bolt (17), and the bottom of the second limiting bolt (17) is threadedly installed on the inside of the upper end of the threaded hole column (16).

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