High-compression-resistance centrifugal pump structure

Abstract

The utility model discloses a centrifugal pump structure with high pressure resistance, which relates to the technical field of centrifugal pumps and comprises a base, a second support is mounted on the left of the upper end of the base, a first support is mounted on the right of the upper end of the base, an outer shell is mounted at the upper end of the second support, and a first reinforcing component is mounted at the left end of the outer shell. A second reinforcing component is installed on the outer cylindrical face of the outer shell, a rear end cover is installed at the right end of the outer shell, an inner shell is arranged on the inner cylindrical face of the outer shell, and an anti-corrosion coating is arranged on the inner cylindrical face of the inner shell. According to the utility model, the outer shell and the inner shell are matched together to bear higher internal pressure and mechanical stress together, so that the whole structure is more stable and durable, the compression resistance of the pump is effectively improved, the risks of shell deformation, cracking or rupture caused by overlarge pressure are reduced, liquid leakage is effectively prevented, and the service life of the pump is prolonged. And the safety and the compression resistance of the equipment are improved, and normal operation of the centrifugal pump in a high-pressure environment is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal pumps, in particular to a high-pressure-resistant centrifugal pump structure. Background Art

[0002] A centrifugal pump is a type of pump that uses the rotation of the impeller to cause the medium to undergo centrifugal motion. Under the action of the centrifugal motion, the medium is thrown to the edge of the impeller, thereby forming a vacuum in the middle to absorb the medium. It is widely used in many fields such as electricity, metallurgy, coal, building materials, and water conservancy because of its advantages of uniform flow, stable operation, low vibration, and suitability for mildly corrosive liquids.

[0003] The prior art (publication number: CN 219711810 U) discloses a centrifugal pump seat, comprising a support seat frame system and a protective cover shell system detachably mounted on the support seat frame system, wherein the support seat frame system is used for elevated support, and the protective cover shell system is used for safe isolation and protection.

[0004] Although the above patent is detachably mounted on the reinforced frame rod arranged on the frame base through the connecting piece arranged at the lower end, when in use, the centrifugal pump is installed on the frame base and then the cover tube is installed on the centrifugal pump, which can effectively isolate and protect the driving motor of the centrifugal pump. Compared with the traditional centrifugal pump seat, it can effectively provide safety protection and prevent burns caused by motor heating. However, there are disadvantages. When in use, the shell part of the centrifugal pump has low pressure resistance. The shell is prone to deformation, cracking or rupture under high pressure environment, resulting in damage to the equipment and affecting the normal operation of the centrifugal pump. Further improvement is needed. For this reason, we propose a high pressure-resistant centrifugal pump structure. Utility Model Content

[0005] The main purpose of the utility model is to provide a high-pressure-resistant centrifugal pump structure, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A high-pressure centrifugal pump structure includes a base, a second bracket is installed on the left upper end of the base, a first bracket is installed on the right upper end of the base, an outer shell is installed on the upper end of the second bracket, a first reinforcement component is installed on the left end of the outer shell, a second reinforcement component is installed on the outer cylindrical surface of the outer shell, a rear end cover is installed on the right end of the outer shell, an inner shell is provided on the inner cylindrical surface of the outer shell, an anti-corrosion coating is provided on the inner cylindrical surface of the inner shell, an impeller is provided inside the inner shell, and a motor is installed on the upper end of the first bracket.

[0008] Preferably, the first reinforcement component includes a reinforcement rod, and a plurality of the reinforcement rods are arranged in a circular array, and the plurality of reinforcement rods are installed on the left end of the outer shell, and a plurality of reinforcement rings are commonly installed on the outer surfaces of the plurality of reinforcement rods, and the diameters of the plurality of reinforcement rings decrease successively from the outside to the inside.

[0009] Preferably, the second reinforcing component comprises reinforcing ribs, wherein a plurality of the reinforcing ribs are arranged in a linear array, the plurality of the reinforcing ribs are fixedly mounted on the outer cylindrical surface of the outer shell, and a plurality of connecting ribs are installed between two adjacent reinforcing ribs.

[0010] Preferably, the anti-corrosion coating comprises a primer coating, the primer coating is arranged on the inner cylindrical surface of the inner shell, and a high-temperature anti-corrosion nano-composite ceramic coating is arranged on the side of the primer coating away from the inner cylindrical surface of the inner shell.

[0011] Preferably, a water inlet pipe is inserted and connected to the middle part of the left end of the outer shell, and a drain pipe is inserted and connected to the upper part of the outer cylindrical surface of the outer shell, and both the water inlet pipe and the drain pipe extend into the inner shell.

[0012] Preferably, the output end of the motor movably passes through the left end of the rear end cover and is fixedly connected to the right end of the impeller.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. By setting the outer shell and the inner shell together, they can jointly bear higher internal pressure and mechanical stress, making the whole structure more stable and durable, effectively improving the pressure resistance of the pump, reducing the risk of shell deformation, cracking or rupture due to excessive pressure, effectively preventing liquid leakage, improving the safety and pressure resistance of the equipment, and ensuring the normal operation of the centrifugal pump under high pressure environment. By setting the first reinforcement component and the second reinforcement component together, the strength of the outer surface of the outer shell can be further improved. The reinforcement ribs, connecting ribs, reinforcement rings and reinforcement rods are distributed at key positions of the outer shell, which can effectively disperse and conduct stress, further improve the pressure resistance of the pump shell, and ensure the safe operation of the equipment under high pressure;

[0015] 2. The anti-corrosion coating can enhance the corrosion resistance of the inner wall of the inner shell. When in use, the high-temperature anti-corrosion nano-composite ceramic coating has good corrosion resistance and wear resistance, which prevents the inner wall of the inner shell from being corroded by external corrosive liquids, facilitates the operation of corrosive liquids, and improves the service life and strength of the inner shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the entire structure proposed in this embodiment;

[0017] Figure 2 Schematic diagram of the structure of the inner shell in this embodiment;

[0018] Figure 3 This is a schematic diagram of the structure of the first reinforcement component and the second reinforcement component in this embodiment;

[0019] Figure 4 Schematic diagram of the structure of the anti-corrosion coating in this embodiment.

[0020] In the figure: 1. base; 2. first bracket; 3. second bracket; 4. motor; 5. outer shell; 6. rear end cover; 7. water inlet pipe; 8. drain pipe; 9. first reinforcement component; 10. second reinforcement component; 11. inner shell; 12. impeller; 13. anti-corrosion coating; 101. reinforcement rib; 102. connecting rib; 91. reinforcement ring; 92. reinforcement rod; 131. primer coating; 132. high-temperature anti-corrosion nano-composite ceramic coating. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] like Figure 1-Figure 4As shown, a high pressure-resistant centrifugal pump structure includes a base 1, a second bracket 3 is installed on the left upper end of the base 1, a first bracket 2 is installed on the right upper end of the base 1, an outer shell 5 is installed on the upper end of the second bracket 3, a first reinforcing component 9 is installed on the left end of the outer shell 5, a second reinforcing component 10 is installed on the outer cylindrical surface of the outer shell 5, a rear end cover 6 is installed on the right end of the outer shell 5, an inner shell 11 is provided on the inner cylindrical surface of the outer shell 5, an anti-corrosion coating 13 is provided on the inner cylindrical surface of the inner shell 11, an impeller 12 is provided inside the inner shell 11, a motor 4 is installed on the upper end of the first bracket 2, the outer shell 5 and the inner shell 11 cooperate to jointly bear higher internal pressure and mechanical stress, so that the whole structure is more stable and durable, effectively improves the pressure resistance of the centrifugal pump, reduces the risk of shell deformation, cracking or rupture due to excessive pressure, effectively prevents liquid leakage, improves the safety and pressure resistance of the equipment, and ensures the normal operation of the centrifugal pump under high pressure environment.

[0025] In order to further improve the pressure resistance of the pump housing and ensure the safe operation of the equipment under high pressure, the first reinforcing component 9 and the second reinforcing component 10 cooperate to further improve the strength of the outer surface of the outer shell 5. The first reinforcing component 9 includes a reinforcing rod 92. The reinforcing rod 92 is arranged in a ring array. The reinforcing rods 92 are all installed on the left end of the outer shell 5. The outer surfaces of the reinforcing rods 92 are jointly installed with a plurality of reinforcing rings 91. The diameters of the reinforcing rings 91 decrease from the outside to the inside. The reinforcing rings 91 and the reinforcing rods 92 are arranged in a ring array. The second reinforcing component 10 is welded to the outer shell 5. The second reinforcing component 10 includes reinforcing ribs 101. The reinforcing ribs 101 are arranged in a linear array. The several reinforcing ribs 101 are fixedly sleeved on the outer cylindrical surface of the outer shell 5. Several connecting ribs 102 are installed between two adjacent reinforcing ribs 101. The reinforcing ribs 101 and the connecting ribs 102 are welded to the outer shell 5. The reinforcing ribs 101, the connecting ribs 102, the reinforcing rings 91 and the reinforcing rods 92 are distributed at key positions of the outer shell 5 for effectively dispersing and conducting stress.

[0026] The anti-corrosion coating 13 is used to enhance the corrosion resistance of the inner wall of the inner shell 11, prevent external corrosive liquids from corroding the inner wall of the inner shell 11, facilitate operations on corrosive liquids, and improve the service life and strength of the inner shell 11. The anti-corrosion coating 13 includes a primer coating 131, which is arranged on the inner cylindrical surface of the inner shell 11. A high-temperature anti-corrosion nano-composite ceramic coating 132 is arranged on the side of the primer coating 131 away from the inner cylindrical surface of the inner shell 11. The primer coating 131 is used to improve the adhesion of the high-temperature anti-corrosion nano-composite ceramic coating 132. The model of the high-temperature anti-corrosion nano-composite ceramic coating 132 is: JN-FC020-FH.

[0027] A water inlet pipe 7 is inserted and connected to the middle of the left end of the outer shell 5, and a drain pipe 8 is inserted and connected to the upper part of the outer cylindrical surface of the outer shell 5. The water inlet pipe 7 and the drain pipe 8 both extend into the inner shell 11, and a plurality of connecting holes are opened on the water inlet pipe 7 and the drain pipe 8.

[0028] The output end of the motor 4 movably passes through the left end of the rear end cover 6 and is fixedly connected to the right end of the impeller 12 .

[0029] The utility model proposes a high-pressure centrifugal pump structure. When in use, the base 1 is installed at a specified position, the water inlet pipe 7 is connected to the pipeline, and the output end of the motor 4 drives the impeller 12 to rotate at a high speed, so that the liquid enters the inner shell 11 and is then discharged through the drain pipe 8. The outer shell 5 and the inner shell 11 cooperate with each other to jointly bear higher internal pressure and mechanical stress, making the entire structure more stable and durable, effectively improving the pressure resistance of the pump, and reducing the risk of shell deformation, cracking or rupture due to excessive pressure. The first reinforcement component 9 and the second reinforcement component 10 cooperate to further improve the strength of the outer surface of the outer shell 5. The reinforcement ribs 101, connecting ribs 102, reinforcement rings 91 and reinforcement rods 92 are distributed at key positions of the outer shell 5, which can effectively disperse and conduct stress, and further improve the pressure resistance of the pump shell. The high-temperature anti-corrosion nano-composite ceramic coating 132 has good anti-corrosion and wear resistance, which prevents the external corrosive liquid from corroding the inner wall of the inner shell 11.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high pressure-resistant centrifugal pump structure, comprising a base (1), characterized in that: A second bracket (3) is installed at the left upper end of the base (1), a first bracket (2) is installed at the right upper end of the base (1), an outer shell (5) is installed at the upper end of the second bracket (3), a first reinforcing component (9) is installed at the left end of the outer shell (5), a second reinforcing component (10) is installed on the outer cylindrical surface of the outer shell (5), a rear end cover (6) is installed at the right end of the outer shell (5), an inner shell (11) is provided on the inner cylindrical surface of the outer shell (5), an anti-corrosion coating (13) is provided on the inner cylindrical surface of the inner shell (11), an impeller (12) is provided inside the inner shell (11), and a motor (4) is installed at the upper end of the first bracket (2).

2. A high pressure resistant centrifugal pump structure according to claim 1, characterized in that: The first reinforcing component (9) comprises a reinforcing rod (92), wherein a plurality of the reinforcing rods (92) are arranged in a circular array, and the plurality of the reinforcing rods (92) are all installed at the left end of the outer shell (5), and a plurality of reinforcing rings (91) are commonly installed on the outer surfaces of the plurality of the reinforcing rods (92), and the diameters of the plurality of the reinforcing rings (91) decrease successively from the outside to the inside.

3. A high pressure-resistant centrifugal pump structure according to claim 1, characterized in that: The second reinforcing component (10) comprises reinforcing ribs (101), wherein the reinforcing ribs (101) are provided with a plurality of reinforcing ribs (101) distributed in a linear array, the plurality of reinforcing ribs (101) are fixedly sleeved on the outer cylindrical surface of the outer shell (5), and a plurality of connecting ribs (102) are installed between two adjacent reinforcing ribs (101).

4. A high pressure-resistant centrifugal pump structure according to claim 1, characterized in that: The anti-corrosion coating (13) comprises a primer coating (131), wherein the primer coating (131) is arranged on the inner cylindrical surface of the inner shell (11), and a high-temperature anti-corrosion nano-composite ceramic coating (132) is arranged on a side of the primer coating (131) away from the inner cylindrical surface of the inner shell (11).

5. The high pressure-resistant centrifugal pump structure according to claim 1, characterized in that: A water inlet pipe (7) is inserted and connected to the middle of the left end of the outer shell (5), and a drainage pipe (8) is inserted and connected to the upper part of the outer cylindrical surface of the outer shell (5). Both the water inlet pipe (7) and the drainage pipe (8) extend into the inner shell (11).

6. A high pressure-resistant centrifugal pump structure according to claim 1, characterized in that: The output end of the motor (4) movably passes through the left end of the rear end cover (6) and is fixedly connected to the right end of the impeller (12).

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