Diaphragm metering pump with front cooling mechanism

Abstract

The utility model discloses a diaphragm metering pump with a front cooling mechanism, which comprises a base and a case, the case is mounted at the top end of the base, a sealing cover is arranged at the front end of the case, a quantity adjusting screw is arranged on one side of the sealing cover, a connector is arranged at the top end of the case, and a motor is assembled at the top end of the connector. A rear pump head is installed on the left side of the base. According to the diaphragm metering pump with the front cooling mechanism, the front pipe, the refrigerator, the upper connecting pipe, the lower connecting pipe, the water outlet, the refrigerant inlet and the water inlet are arranged, the diaphragm metering pump is provided with the front cooling mechanism, it is ensured that water flow is cooled before entering the pump, and under the condition that high-temperature liquid needs to be treated, the refrigerant circularly flows through the refrigerator, so that the high-temperature liquid is treated; heat is effectively transferred, so that the water temperature is reduced, the abrasion of mechanical parts is reduced, the performance of the pump is improved, the service life of the pump is prolonged, and the problem that the mechanical parts in the pump are damaged by high temperature is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm metering pumps, in particular to a diaphragm metering pump with a front cooling mechanism. Background Art

[0002] The diaphragm metering pump is a pump that precisely controls the delivery of fluids and is widely used in various fields. Its working principle is to use a motor to drive the diaphragm to reciprocate in the pump chamber, and to inhale and discharge the fluid through the expansion and contraction of the diaphragm. This pump has the advantages of precise flow control, simple operation, and convenient maintenance. It is especially suitable for conveying corrosive, volatile or high-purity fluids.

[0003] Traditional diaphragm metering pumps have certain limitations. For example, when high-temperature fluid passes through the pump for a long time, it may cause increased wear of the internal components of the pump, affecting the stability and service life of the pump. For applications that require cooling, traditional pumps often require external cooling devices, which not only increases additional equipment costs, but also makes the overall system more complicated, and maintenance and operation become more difficult.

[0004] Therefore, a diaphragm metering pump with a pre-cooling mechanism is needed to solve the above technical defects. Utility Model Content

[0005] The utility model aims to provide a diaphragm metering pump with a front cooling mechanism to solve the problem of aggravated wear of internal components of the pump caused by high-temperature fluid proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a diaphragm metering pump with a front cooling mechanism, comprising a base and a chassis, a chassis is installed on the top of the base, the front end of the chassis is a sealing cover, one side of the sealing cover is provided with an adjusting screw, the top of the chassis is a connector, the top of the connector is equipped with a motor, a rear pump head is installed on the left side of the base, the left side of the rear pump head is sealed and connected to the front pump head, a diaphragm is arranged between the rear pump head and the front pump head, an inlet valve port is welded on the top of the front pump head, a water outlet valve port is welded on the bottom end of the front pump head, the water inlet valve port is connected to a front pipe through a connecting flange, a refrigerator is installed in the front pipe, the refrigerator comprises a refrigerant inlet and a refrigerant outlet, the refrigerant inlet and the refrigerant outlet extend from the left and right sides of the front pipe to the outside respectively, the top and bottom ends of the refrigerator are connected with a water inlet and a water outlet respectively, and one end of the refrigerator is also provided with an air hole.

[0007] Preferably, the top end of the water inlet is connected to an upper connecting pipe, the bottom end of the water outlet is connected to a turbocharger, and the bottom end of the turbocharger is connected to a lower connecting pipe.

[0008] Preferably, a flow guide filter element is installed at the top of the upper connecting pipe, and the flow guide filter element includes two sets of filter element mounting seats, and the filter element mounting seats are respectively installed at the upper connecting pipe and the front pipe. The flow guide filter element is clamped in the filter element mounting seat, and rubber rings are provided at the top and bottom of the flow guide filter element.

[0009] Preferably, the flow guide filter element is cylindrical and has an integral radial pleated filter paper built in.

[0010] Preferably, the water inlet valve port and the water outlet valve port are both equipped with connecting flanges, and the water outlet valve port and the water inlet valve port are symmetrically distributed about the horizontal center line of the front pump head.

[0011] Preferably, an openable inspection panel is installed on the left side of the outer wall of the front pump head, and the inspection panel is fixed to the front pump head by screws.

[0012] Preferably, the length of the front pipe is arranged according to pipeline planning.

[0013] Preferably, the base is integrally cast with the chassis, and the base can be fixed to an external plane by four-corner screws.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the diaphragm metering pump with a pre-cooling mechanism not only realizes that the water flow has been cooled before entering the pump, reducing the wear of mechanical parts, but also realizes filtration before cooling and pressurization after cooling, and does not affect the water outlet due to the flow rate slowdown caused by cooling, and realizes that the cooling structure is built into the pipeline, with a highly integrated design, reducing the assembly workload;

[0015] (1) This diaphragm metering pump is equipped with a front cooling mechanism by providing a front pipe, a refrigerator, an upper pipe, a lower pipe, a water outlet, a refrigerant inlet, and a water inlet. The cooling mechanism is installed in the front pipe to ensure that the water flow has been cooled before entering the pump. When it is necessary to handle high-temperature liquid, the refrigerant circulates through the refrigerator to effectively transfer heat, thereby lowering the water temperature and reducing the wear of mechanical parts. This not only improves the performance of the pump itself, but also extends its service life;

[0016] (2) By providing a guide filter, a water inlet, a water outlet, and a turbocharger, the cooling mechanism has a filtering structure in front and a boosting structure in the back. The filtering structure is located in front of the upper pipe. The incoming water first passes through the guide filter to intercept impurities in the incoming water to ensure that the inside of the pump is not contaminated. Then the water enters the refrigerator from the water inlet and is finally discharged from the water outlet. The turbocharger ensures high-pressure delivery by increasing the speed and pressure of the water flow, so that the diaphragm metering pump can handle a wider range of fluid types and will not affect the water outlet due to the slowdown of the flow rate caused by cooling;

[0017] (3) By arranging the motor, front pipe, chassis, base, and rear pump head, the cooling mechanism is installed in the front pipe and integrated into the pump body structure, achieving a high degree of integration. The integrated design reduces the need for external pipes and accessories, reduces the workload of complex assembly, and also improves the overall stability of the pump. Especially in a working environment with limited space, this design greatly improves the applicability and ease of operation of the pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the side view of the front pump head of the utility model;

[0020] Figure 3 This is a schematic diagram of the base structure of the utility model when viewed from above;

[0021] Figure 4 It is a schematic diagram of the front cross-sectional structure of the pre-tube of the present utility model.

[0022] In the figure: 1. Motor; 2. Connector; 3. Adjustment screw; 4. Sealing cover; 5. Chassis; 6. Base; 7. Rear pump head; 8. Connecting flange; 9. Water outlet valve; 10. Front pump head; 11. Water inlet valve; 12. Pre-pipe; 13. Diaphragm; 14. Filter element mounting seat; 15. Rubber ring; 16. Guide filter element; 17. Upper connecting pipe; 18. Air hole; 19. Refrigerator; 20. Refrigerant outlet; 21. Turbocharger; 22. Lower connecting pipe; 23. Water outlet; 24. Refrigerant inlet; 25. Water inlet. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1: Please refer to Figure 1-4A diaphragm metering pump with a front cooling mechanism comprises a base 6 and a chassis 5, the chassis 5 is installed on the top of the base 6, the front end of the chassis 5 is a sealing cover 4, one side of the sealing cover 4 is provided with an adjusting screw 3, the top of the chassis 5 is a connector 2, the top of the connector 2 is equipped with a motor 1, a rear pump head 7 is installed on the left side of the base 6, the left side of the rear pump head 7 is sealed and connected with a front pump head 10, a diaphragm 13 is arranged between the rear pump head 7 and the front pump head 10, a water inlet valve port 11 is welded on the top of the front pump head 10, a water outlet valve port 9 is welded on the bottom of the front pump head 10, and the water inlet valve port 11 passes through The connecting flange 8 is connected to the front pipe 12, and a refrigerator 19 is installed in the front pipe 12. The refrigerator 19 includes a refrigerant inlet 24 and a refrigerant outlet 20, and the refrigerant inlet 24 and the refrigerant outlet 20 extend to the outside from the left and right sides of the front pipe 12 respectively. The top and bottom ends of the refrigerator 19 are respectively connected to the water inlet 25 and the water outlet 23. An air hole 18 is also provided at one end of the refrigerator 19. The connecting flange 8 is installed at the water inlet valve port 11 and the water outlet valve port 9. The water outlet valve port 9 and the water inlet valve port 11 are symmetrically distributed about the horizontal center line of the front pump head 10.

[0025] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, this diaphragm metering pump is equipped with a pre-cooling mechanism installed in the pre-pipe 12 to ensure that the water flow is cooled before entering the pump. When it is necessary to handle high-temperature liquid, the refrigerant circulates through the refrigerator 19 to effectively transfer heat, thereby reducing the water temperature.

[0026] Embodiment 2: The top of the water inlet 25 is connected to an upper pipe 17, the bottom of the water outlet 23 is connected to a turbocharger 21, the bottom of the turbocharger 21 is connected to a lower pipe 22, the top of the upper pipe 17 is equipped with a flow guide filter 16, the flow guide filter 16 includes two sets of filter element mounting seats 14, the filter element mounting seats 14 are respectively mounted on the upper pipe 17 and the front pipe 12, the filter element mounting seats 14 are clamped with the flow guide filter 16, the top and bottom of the flow guide filter 16 are provided with rubber rings 15, the flow guide filter 16 is cylindrical, and has an integrated radial pleated filter paper built in;

[0027] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, the cooling mechanism has a filtering structure in front and a boosting structure in the rear. The filtering structure is located in front of the upper connecting pipe 17. The incoming water first passes through the guide filter element 16 to intercept impurities in the incoming water to ensure that the inside of the pump is not contaminated. Then the water enters the refrigerator 19 from the water inlet 25 and is finally discharged from the water outlet 23. The turbocharger 21 ensures high-pressure delivery by increasing the speed and pressure of the water flow.

[0028] Embodiment 3: An openable inspection panel is installed on the left side of the outer wall of the front pump head 10, and the inspection panel is fixed to the front pump head 10 by screws. The length of the front pipe 12 is arranged according to the pipeline planning. The base 6 is integrally cast with the chassis 5, and the base 6 can be fixed to the external plane by four-corner screws;

[0029] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the cooling mechanism is installed in the front pipe 12 and integrated into the pump body structure, achieving a high degree of integration. The integrated design reduces the need for external pipes and accessories, reduces the workload of complex assembly, and also improves the overall stability of the pump.

[0030] Working principle: The liquid first enters the pump through the water inlet 25. After entering the water, the liquid flows through the pre-pipe 12 and enters the cooling mechanism. At this stage, the liquid first passes through the guide filter 16, and the impurities therein are effectively filtered out to ensure that the inside of the pump is not contaminated. The liquid that has been preliminarily filtered then enters the refrigerator 19, and the liquid exchanges heat with the circulating refrigerant. The refrigerant enters through the refrigerant inlet 24 and is discharged from the refrigerant outlet 20. This process significantly reduces the temperature of the liquid and prepares for efficient operation in the pumping stage. The cooled liquid then flows through the turbocharger 21, where the speed and pressure of the liquid are increased, and the pressurized liquid flows into the front pump head 10. In the pump head part, the liquid is metered and pumped by the reciprocating motion of the diaphragm 13. The movement of the diaphragm 13 is precisely controlled by the motor 1. Finally, the treated liquid flows out through the outlet valve 9 to complete the entire pumping process. During the entire process, the base 6 provides a stable support for the pump.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A diaphragm metering pump with a front cooling mechanism, comprising a base (6) and a housing (5), characterized in that: A case (5) is mounted on the top of the base (6); a sealing cover (4) is disposed at the front end of the case (5); an adjusting screw (3) is disposed on one side of the sealing cover (4); a connector (2) is disposed at the top of the case (5); a motor (1) is mounted on the top of the connector (2); a rear pump head (7) is mounted on the left side of the base (6); a front pump head (10) is sealedly connected to the left side of the rear pump head (7); a diaphragm (13) is disposed between the rear pump head (7) and the front pump head (10); a water inlet valve (11) is welded to the top of the front pump head (10); and a water pump (11) is mounted on the top of the front pump head (10). ) is welded with a water outlet valve port (9) at the bottom end, the water inlet valve port (11) is connected to a front pipe (12) via a connecting flange (8), a refrigerator (19) is installed in the front pipe (12), the refrigerator (19) comprises a refrigerant inlet (24) and a refrigerant outlet (20), the refrigerant inlet (24) and the refrigerant outlet (20) respectively extend from the left and right sides of the front pipe (12) to the outside, the top and bottom ends of the refrigerator (19) are respectively connected to a water inlet port (25) and a water outlet port (23), and an air hole (18) is also provided at one end of the refrigerator (19).

2. A diaphragm metering pump with a front cooling mechanism according to claim 1, characterized in that: The top end of the water inlet (25) is connected to an upper connecting pipe (17), the bottom end of the water outlet (23) is connected to a turbocharger (21), and the bottom end of the turbocharger (21) is connected to a lower connecting pipe (22).

3. A diaphragm metering pump with a pre-cooling mechanism according to claim 2, characterized in that: A flow guide filter element (16) is mounted on the top of the upper connecting pipe (17); the flow guide filter element (16) comprises two sets of filter element mounting seats (14); the filter element mounting seats (14) are mounted on the upper connecting pipe (17) and the front pipe (12), respectively; the flow guide filter element (16) is clamped in the filter element mounting seats (14); and rubber rings (15) are provided at the top and bottom of the flow guide filter element (16).

4. A diaphragm metering pump with a pre-cooling mechanism according to claim 3, characterized in that: The flow guide filter element (16) is cylindrical and has an integral radial pleated filter paper built therein.

5. The diaphragm metering pump with a pre-cooling mechanism according to claim 1, characterized in that: The water inlet valve port (11) and the water outlet valve port (9) are both equipped with connecting flanges (8), and the water outlet valve port (9) and the water inlet valve port (11) are symmetrically distributed about the horizontal center line of the front pump head (10).

6. A diaphragm metering pump with a front cooling mechanism according to claim 1, characterized in that: An openable inspection panel is installed on the left side of the outer wall of the front pump head (10), and the inspection panel is fixed to the front pump head (10) by screws.

7. A diaphragm metering pump with a pre-cooling mechanism according to claim 1, characterized in that: The length of the front pipe (12) is arranged according to pipeline planning.

8. The diaphragm metering pump with a front cooling mechanism according to claim 1, characterized in that: The base (6) is integrally cast with the chassis (5), and the base (6) can be fixed to an external plane by means of four-corner screws.

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