Domestic booster pump suitable for hot and humid coastal areas

Abstract

The utility model belongs to water pump technical field especially relates to a kind of domestic booster pump suitable for hot and humid coastal zone, including shell, pump body, machine cover, driving assembly, heat dissipation component and liquid baffle ring;Shell installs rotor shaft, and front end cover and rear end cover are equipped in axial two sides, and are connected with rotor shaft bearing;Pump body is connected shell by front end cover, and there is pump water chamber in inside;Machine cover is installed between pump body and front end cover, and is mechanically sealed with rotor shaft, seals pump water chamber;Driving assembly drives rotor shaft rotation in shell;Heat dissipation component is heat dissipated in the rear end cover side of shell;Liquid baffle ring is sleeved on rotor shaft at front end cover, located between machine cover and front end cover;Through the above structure, when using in hot and humid high salt environment, it can avoid hot and humid air to invade the bearing at front end cover, avoid erosion to bearing, improve permeation protection effect, avoid to destroy bearing play, prevent the problem of causing bearing lockup or fracture, effectively prolong the service life of domestic booster pump.

Description

Technical Field

[0001] This utility model belongs to the field of water pump technology, and in particular relates to a household booster pump suitable for hot, humid and saline environments. Background Technology

[0002] In modern household water use scenarios, household booster pumps play an important role. However, traditional household booster pumps often do not fully consider the corrosive effects of hot, humid, and high-salt environments. In such hot, humid, and high-salt areas as coastal regions and the Middle East, higher performance requirements are placed on household booster pumps.

[0003] Traditional household booster pumps typically focus on leakage protection of the conveyed medium through their sealing systems, generally employing a single-stage mechanical seal structure. Their sealing performance is primarily designed for the conveyed medium, and their protection against the penetration of humid and hot air in humid and saline regions is inadequate. This can easily lead to humid and hot air directly contacting the inner and outer rings and rolling elements of the bearing, thereby damaging the bearing clearance and ultimately causing the bearing to seize or break. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a household booster pump suitable for humid, hot, and saline environments, thereby preventing bearing corrosion when using the household booster pump in humid, hot, and saline areas.

[0005] In view of this, the present invention provides a household booster pump suitable for hot, humid, and saline environments, comprising:

[0006] The housing is equipped with a rotor shaft and has a front cover and a rear cover on both sides of the axial direction, and both the front cover and the rear cover are connected to the rotor shaft bearing.

[0007] The pump body has a pumping chamber inside and is connected to the axial side of the housing through a front end cover. An impeller is installed on the rotor shaft inside the pumping chamber.

[0008] The mechanical seal cover is installed between the pump body and the front cover, and provides a mechanical seal with the rotor shaft, and is used to seal the pump water chamber;

[0009] The drive assembly is installed inside the housing and is used to drive the rotor shaft to rotate;

[0010] A heat dissipation component is installed on one side of the housing located at the rear end cover and is used for heat dissipation of the housing;

[0011] The liquid baffle ring is fitted onto the end of the rotor shaft located at the front end cover, and is positioned between the mechanical seal cover and the front end cover.

[0012] In the above technical solution, further:

[0013] The pump body, mechanical seal cover, and rotor shaft are made of stainless steel.

[0014] The impeller is made of copper.

[0015] In the above technical solution, further:

[0016] The mechanical seal between the mechanical seal cover and the rotor shaft includes a rotating ring and a stationary ring, wherein the rotating ring is made of sintered graphite and the stationary ring is made of silicon carbide.

[0017] In the above technical solution, the heat dissipation component further includes:

[0018] The fan is mounted on one end of the rotor shaft located at the rear end cover and rotates with the rotor shaft;

[0019] A fan cover is mounted on one side of the housing located at the rear end cover and is used to house the fan in a built-in configuration.

[0020] In the above technical solution, further:

[0021] The surface of the housing is provided with heat dissipation fins arranged at equal intervals, and heat dissipation channels are formed between adjacent heat dissipation fins. An air intake channel communicating with the heat dissipation channels is formed between the fan cover and the housing.

[0022] In the above technical solution, the liquid-blocking ring further includes:

[0023] The main body is fitted onto the surface of the rotor shaft and is interference-fitted with the rotor shaft, and has a cylindrical structure;

[0024] The annular protrusion includes a first annular protrusion and a second annular protrusion located at both ends of the main body along the axial direction, respectively.

[0025] The front cover has an annular inner wall at the liquid-blocking ring, and the first annular protrusion abuts against the annular inner wall, while the second annular protrusion is located on the outside of the front cover.

[0026] In the above technical solution, further:

[0027] The radial diameter of the first annular protrusion must be smaller than the radial diameter of the second annular protrusion.

[0028] Among them, the side of the first annular protrusion and the side of the second annular protrusion away from the axis are both inclined towards the axis to form a chamfer along the axial direction.

[0029] In the above technical solution, further:

[0030] The second annular protrusion has a guide slope at the end away from the front cover along the axial direction.

[0031] The beneficial effects of this utility model are as follows:

[0032] 1. By installing a baffle ring at the front cover of the main shaft, the humid air can be prevented from entering the bearing at the front cover when the domestic booster pump is used in a humid, hot and salty environment. This prevents corrosion of the bearing, improves the protection against the penetration of humid air in humid, hot and salty areas, avoids damage to the bearing clearance, prevents bearing seizure or breakage, and effectively extends the service life of the domestic booster pump.

[0033] 2. To adapt to humid, hot, and high-salt environments and the media being transported, the pump body, mechanical seal, and rotor shaft, which come into contact with the media, are made of stainless steel, while the impeller is made of copper. This effectively improves the corrosion resistance of the parts in contact with the media and extends the service life of the household booster pump.

[0034] 3. To meet the requirements of humid and hot, high-chlorine media, silicon carbide is used instead of tungsten carbide in the stationary ring of the mechanical seal. While ensuring wear resistance, it also has better corrosion resistance. Sintered graphite is used instead of hot-pressed graphite with additives in the traditional method. This ensures self-lubrication and good corrosion resistance, thereby extending the service life of the household booster pump.

[0035] 4. By setting up the heat dissipation components and using a fan that rotates with the rotor shaft to guide and generate airflow, and by connecting the air intake channel with the heat dissipation channels between adjacent heat dissipation fins on the housing surface, the heat dissipation effect of the housing part is improved, thereby improving the thermal classification of the household booster pump, reducing the heat generation coefficient, reducing the temperature rise value during normal operation, preventing the risk of burn-out, and effectively improving the service life. Attached Figure Description

[0036] Figure 1 This is a side view of the present invention;

[0037] Figure 2 This is a utility model Figure 1 Sectional view at point AA;

[0038] Figure 3 This is a utility model Figure 2 Enlarged view of point B in the middle;

[0039] Figure 4 This is a partial exploded view of the liquid-retaining ring of this utility model;

[0040] The markings in the diagram represent: 1. Housing; 2. Rotor shaft; 3. Front cover; 30. Annular inner wall; 4. Rear cover; 5. Pump body; 6. Mechanical seal cover; 7. Drive assembly; 8. Heat dissipation assembly; 80. Fan; 81. Fan cover; 9. Liquid baffle ring; 90. Main body; 91. First annular protrusion; 92. Second annular protrusion; 93. Chamfer; 94. Guide slope; 10. Moving ring; 11. Stationary ring; 12. Heat dissipation fins; 13. Heat dissipation channel; 14. Air inlet channel; 15. Impeller. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0042] Example 1:

[0043] This embodiment provides a household booster pump suitable for hot, humid, and saline environments, comprising:

[0044] The housing 1 is equipped with a rotor shaft 2, and has a front cover 3 and a rear cover 4 on both sides of the axial direction, and both the front cover 3 and the rear cover 4 are connected to the rotor shaft 2 bearings.

[0045] The pump body 5 has a pumping chamber inside and is connected to the axial side of the housing 1 through the front end cover 3. An impeller 15 is installed on the rotor shaft 2 inside the pumping chamber.

[0046] Mechanical seal cover 6 is installed between pump body 5 and front end cover 3, and mechanically seals with rotor shaft 2, and is used for sealing pump water chamber;

[0047] Drive assembly 7 is installed inside housing 1 and is used to drive rotor shaft 2 to rotate;

[0048] The heat dissipation component 8 is installed on the side of the housing 1 located at the rear end cover 4 and is used for heat dissipation of the housing 1;

[0049] The liquid baffle ring 9 is sleeved on one end of the rotor shaft 2 located at the front end cover 3, and is located between the mechanical seal cover 6 and the front end cover 3;

[0050] The rotor shaft 2 includes a rotor and a main shaft, while the drive assembly 7 includes a stator corresponding to the rotor and uses electromagnetic drive to drive the rotor shaft 2 to rotate. A junction box is provided on the surface of the housing 1, and a wired running capacitor is installed in the junction box. Its specific structure is existing technology and can be obtained from traditional electromagnetic motors, so it will not be described in detail here.

[0051] Meanwhile, the liquid-retaining ring 9 is made of rubber.

[0052] As can be seen from this embodiment, by setting a baffle ring 9 at the front cover 3 of the main shaft, it is possible to prevent hot and humid air from entering the bearing at the front cover 3 when the domestic booster pump is used in a hot and humid environment, thereby avoiding corrosion of the bearing, improving the protection effect against the penetration of hot and humid air in the hot and humid area, avoiding damage to the bearing clearance, preventing the bearing from seizing or breaking, and effectively extending the service life of the domestic booster pump.

[0053] Example 2:

[0054] This embodiment provides a household booster pump suitable for hot, humid, and saline environments. In addition to the technical solutions of the above embodiments, it also has the following technical features:

[0055] The pump body 5, the mechanical seal cover 6, and the rotor shaft 2 are made of stainless steel.

[0056] The impeller 15 is made of copper.

[0057] As can be seen from this embodiment, in order to adapt to the humid and hot environment and the conveying medium, the pump body 5, mechanical seal cover 6 and rotor shaft 2 that are in contact with the conveying medium are made of stainless steel, while the impeller 15 is made of copper. This can effectively improve the corrosion resistance of the parts in contact with the conveying medium and extend the service life of the household booster pump.

[0058] Example 3:

[0059] This embodiment provides a household booster pump suitable for hot, humid, and saline environments. In addition to the technical solutions of the above embodiments, it also has the following technical features:

[0060] The mechanical seal between the mechanical seal cover 6 and the rotor shaft 2 includes a rotating ring 10 and a stationary ring 11, wherein the rotating ring 10 is made of sintered graphite and the stationary ring 11 is made of silicon carbide.

[0061] Mechanical seals also have other structural components, all of which are made of stainless steel. Their specific structures are existing technologies and can be found in traditional mechanical seals, so they will not be described in detail here.

[0062] As can be seen from this embodiment, in order to meet the requirements of humid and hot, high-chlorine media, silicon carbide is used instead of the traditional tungsten carbide in the stationary ring 11 of the mechanical seal. While ensuring wear resistance, it has better corrosion resistance. Sintered graphite is used instead of the traditional hot-pressed graphite with additives in the rotating ring 10. While ensuring self-lubrication, it has good corrosion resistance, thereby extending the service life of the household booster pump.

[0063] Example 4:

[0064] This embodiment provides a household booster pump suitable for hot, humid, and saline environments. In addition to the technical solutions described in the above embodiments, it also has the following technical features: the heat dissipation component 8 includes:

[0065] Fan 80 is installed at one end of rotor shaft 2 located at the rear end cover 4 and rotates with rotor shaft 2;

[0066] A fan cover 81 is mounted on one side of the housing 1 located at the rear end cover 4 and is used to house the fan 80 in a built-in configuration.

[0067] As can be seen from this embodiment, by setting up the heat dissipation component 8 and using the fan 80 that rotates with the rotor shaft 2 to guide and generate airflow, the heat dissipation effect of the housing 1 can be improved, thereby improving the thermal classification of the household booster pump, reducing the heat generation coefficient, reducing the temperature rise value during normal operation, preventing the risk of burn-out, and effectively improving the service life.

[0068] The fan cover 81 also improves safety during use.

[0069] Example 5:

[0070] This embodiment provides a household booster pump suitable for hot, humid, and saline environments. In addition to the technical solutions of the above embodiments, it also has the following technical features:

[0071] The surface of the housing 1 is provided with heat dissipation fins 12 arranged at equal intervals, and heat dissipation channels 13 are formed between adjacent heat dissipation fins 12. An air intake channel 14 communicating with the heat dissipation channel 13 is formed between the fan cover 81 and the housing 1.

[0072] The heat dissipation fins 12 and the housing 1 are integrated into one piece.

[0073] As can be seen from this embodiment, by setting heat dissipation fins 12 on the surface of the housing 1, the heat dissipation effect of the surface of the housing 1 can be further improved. Furthermore, by setting the air inlet channel 14 to connect with the heat dissipation channel 13 between the adjacent heat dissipation fins 12 on the surface of the housing 1, the airflow in the heat dissipation channel 13 can be driven, thereby further improving the heat dissipation effect of the heat dissipation fins 12.

[0074] Example 6:

[0075] This embodiment provides a household booster pump suitable for hot, humid, and high-salt environments. In addition to the technical solutions described in the above embodiments, it also has the following technical features: the liquid-retaining ring 9 includes:

[0076] The main body 90 is sleeved on the surface of the rotor shaft 2 and is interference-fitted with the rotor shaft 2, and has a cylindrical structure;

[0077] The annular protrusion includes a first annular protrusion 91 and a second annular protrusion 92 located at the two axial ends of the main body 90, respectively.

[0078] The front cover 3 has an annular inner wall 30 at the liquid-blocking ring 9, and the first annular protrusion 91 abuts against the annular inner wall 30, while the second annular protrusion 92 is located on the outside of the front cover 3.

[0079] As can be seen from this embodiment, by adopting a cylindrical structure for the main body 90 of the liquid baffle ring 9, the effective connection area between the liquid baffle ring 9 and the rotor shaft 2 can be effectively increased, thereby improving the connection strength and stability between the liquid baffle ring 9 and the rotor shaft 2. The setting of the annular protrusion can form multiple radial barriers, extend the water vapor intrusion path, and effectively block water vapor from seeping in along the gap.

[0080] Example 7:

[0081] This embodiment provides a household booster pump suitable for hot, humid, and saline environments. In addition to the technical solutions of the above embodiments, it also has the following technical features:

[0082] The radial diameter of the first annular protrusion 91 is smaller than the radial diameter of the second annular protrusion 92;

[0083] Among them, the side of the first annular protrusion 91 and the second annular protrusion 92 away from the axis are both inclined towards the axis side along the axial direction near the end of the front end cover 3 to form a chamfer 93.

[0084] As can be seen from this embodiment, by making the radial diameter of the first annular protrusion 91 smaller than that of the second annular protrusion 92 and by creating the chamfer 93, the assembly can be guided. At the same time, the contact area between the first annular protrusion 91 and the inner wall 30 can be reduced, thus reducing resistance. The chamfer 93 of the second annular protrusion 92 allows water vapor that has entered between the two annular protrusions to be discharged from the chamfer 93 under the centrifugal force generated by the rotation of the baffle ring 9, thus preventing water vapor from accumulating and avoiding increasing the risk of water vapor entering the bearing.

[0085] Example 8:

[0086] This embodiment provides a household booster pump suitable for hot, humid, and saline environments. In addition to the technical solutions of the above embodiments, it also has the following technical features:

[0087] The second annular protrusion 92 has a guide slope 94 at one end along the axial direction away from the front end cover 3.

[0088] As can be seen from this embodiment, by setting the guide slope 94, the water vapor between the intrusion machine seal 6 and the front cover 3 can be guided and discharged in the centrifugal throwing method in the tangential direction of the slope, increasing the range of centrifugal throwing, so that the water vapor at the second annular protrusion 92 can move away from the bearing of the front cover 3 more quickly.

[0089] Furthermore, the inclined surface can reduce the possibility of water vapor forming a liquid film on the surface of the second annular protrusion 92, and the slope of the inclined surface makes it easier for the liquid to detach.

[0090] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A household booster pump suitable for use in humid and hot coastal areas, characterized in that, include: The housing (1) is equipped with a rotor shaft (2), and a front cover (3) and a rear cover (4) are provided on both sides of the axial direction, and the front cover (3) and the rear cover (4) are both connected to the rotor shaft (2) bearing; The pump body (5) has a pump water chamber inside and is connected to the axial side of the housing (1) through the front end cover (3). An impeller (15) is installed on the rotor shaft (2) inside the pump water chamber. Mechanical seal cover (6) is installed between pump body (5) and front end cover (3), and mechanically seals the rotor shaft (2), and is used for sealing the pump water chamber; The drive assembly (7) is installed inside the housing (1) and is used to drive the rotor shaft (2) to rotate; A heat dissipation assembly (8) is installed on one side of the housing (1) located at the rear end cover (4) and is used for heat dissipation of the housing (1); The liquid baffle ring (9) is fitted on one end of the rotor shaft (2) located at the front end cover (3) and between the mechanical seal cover (6) and the front end cover (3).

2. The booster pump for household use in humid coastal areas according to claim 1, characterized in that: The pump body (5), mechanical seal cover (6) and rotor shaft (2) are made of stainless steel; The impeller (15) is made of copper.

3. The household booster pump suitable for hot and humid coastal areas according to claim 1, characterized in that: The mechanical seal between the mechanical seal cover (6) and the rotor shaft (2) includes a moving ring (10) and a stationary ring (11), wherein the moving ring (10) is made of sintered graphite and the stationary ring (11) is made of silicon carbide.

4. The household booster pump suitable for hot and humid coastal areas according to claim 1, characterized in that, The heat dissipation component (8) includes: A fan (80) is installed on one end of the rotor shaft (2) located on the rear end cover (4) and rotates with the rotor shaft (2); A fan cover (81) is mounted on one side of the housing (1) located at the rear end cover (4) and is used to house the fan (80) in a built-in configuration.

5. The household booster pump suitable for hot and humid coastal areas according to claim 4, characterized in that: The surface of the housing (1) is provided with heat dissipation fins (12) arranged at equal intervals, and heat dissipation channels (13) are formed between adjacent heat dissipation fins (12), and an air intake channel (14) is formed between the fan cover (81) and the housing (1) that communicates with the heat dissipation channel (13).

6. The household booster pump suitable for hot and humid coastal areas according to claim 1, characterized in that, The liquid-blocking ring (9) includes: The main body (90) is fitted onto the surface of the rotor shaft (2) and is interference-fitted with the rotor shaft (2), and has a cylindrical structure; The annular protrusion includes a first annular protrusion (91) and a second annular protrusion (92) located at the two ends of the axial direction of the main body (90). The front cover (3) is provided with an annular inner wall (30) at the liquid-blocking ring (9), and the first annular protrusion (91) abuts against the annular inner wall (30), and the second annular protrusion (92) is located outside the front cover (3).

7. The household booster pump suitable for hot and humid coastal areas according to claim 6, characterized in that: The radial diameter of the first annular protrusion (91) is smaller than that of the second annular protrusion (92); Among them, the side of the first annular protrusion (91) and the second annular protrusion (92) away from the axis are both inclined towards the axis side along the axial direction of the end close to the front end cover (3) to form a chamfer (93).

8. The household booster pump suitable for hot and humid coastal areas according to claim 7, characterized in that: The second annular protrusion (92) has a guide slope (94) at one end away from the front end cover (3) along the axial direction.

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