Submersible mixer with anti-winding function

Abstract

The utility model discloses a submersible mixer with an anti-winding function. The submersible mixer comprises an absorber, an impeller, a mechanical seal, a mechanical seal seat and a submersible electric pump, the submersible electric pump comprises a pump body and a rotor shaft, and the rotor shaft is arranged in the middle of the pump body. The mechanical sealing seat penetrates through the rotor shaft, is arranged at the end part of the pump body and is connected with the pump body; the mechanical seal penetrates through the rotor shaft and is arranged on the mechanical seal seat; the impeller is arranged at the end part of the rotor shaft and is connected with the rotor shaft; the impeller is in clearance fit with the mechanical sealing seat; a cavity is formed between the impeller and the mechanical seal seat, the mechanical seal is located in the cavity, and the absorber is arranged in the cavity and connected with the impeller. By arranging the auxiliary blade and the absorber, the auxiliary blade generates circulating fluid in the cavity, the circulating fluid drives fine fibers to flow, and the absorber intercepts the fine fibers, so that water in the cavity is purified, and reliable operation of the mechanical seal is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection, in particular to a submersible mixer with an anti-winding function. Background Art

[0002] Submersible mixers stir and mix activated sludge in the sewage treatment process, so that the activated sludge is fully dissolved in the pool to ensure the smooth operation of the sewage treatment process. However, the following situations will affect the stable operation of the mixer:

[0003] Submersible mixers have been used in sewage media for a long time. Domestic sewage and industrial wastewater have complex components and contain a large amount of fine fiber substances. Since there is always a certain gap between the impeller and the mechanical seal seat, some of the very fine fibers in the sewage will inevitably enter the cavity where the mechanical seal is located and entangle on the mechanical seal, affecting the safe use of the mechanical seal. Summary of the invention

[0004] Technical problem: The technical problem to be solved by the utility model is: to provide a submersible mixer with an anti-winding function, by arranging auxiliary blades and absorbers, the auxiliary blades generate a circulating fluid in the cavity, the circulating fluid drives the flow of fine fibers, the absorber intercepts the fine fibers, thereby purifying the water quality in the cavity and ensuring the reliable operation of the mechanical seal.

[0005] Technical solution: To solve the above technical problems, the technical solution adopted by the embodiment of the utility model is:

[0006] A submersible mixer with an anti-winding function comprises an absorber, an impeller, a mechanical seal, a mechanical seal seat and a submersible electric pump; the submersible electric pump comprises a pump body and a rotor shaft, the rotor shaft is arranged in the middle of the pump body; the mechanical seal seat passes through the rotor shaft and is arranged at the end of the pump body, and is connected to the pump body; the mechanical seal passes through the rotor shaft and is arranged on the mechanical seal seat; the impeller is arranged at the end of the rotor shaft and is connected to the rotor shaft; the impeller is clearance-matched with the mechanical seal seat; a cavity is formed between the impeller and the mechanical seal seat, the mechanical seal is located in the cavity, and the absorber is arranged inside the cavity and is connected to the impeller.

[0007] As a preferred example, the impeller includes main blades, a hub, a hub sleeve, a fixing ring and auxiliary blades; the main blades are arranged on the outer surface of the hub and fixedly connected to the hub; the hub sleeve is connected to the end of the hub away from the mechanical seal seat; the fixing ring is arranged on the inner surface of the end of the hub close to the mechanical seal seat; the auxiliary blades are arranged on the fixing ring; and the absorber is connected to the hub sleeve.

[0008] As a preferred example, the fixing ring is an annular structure; the fixing ring is adapted to the wheel hub; and a reflux hole is provided on the fixing ring.

[0009] As a preferred example, the auxiliary blades are arranged on the surface of the end of the fixing ring away from the mechanical seal seat; the number of the auxiliary blades is 2 to 5.

[0010] As a preferred example, an axial hole is provided at the center of the hub sleeve, and the axial hole is adapted to the rotor shaft.

[0011] As a preferred example, the absorbent body includes an absorbent brush, a baffle and a connecting hole; the absorbent brush is connected to the baffle, and the connecting hole is arranged on the baffle; the absorbent brush includes a brush rod, brush filaments and a core shaft; one end of the brush rod is connected to the core shaft, and the other end is connected to the baffle; the brush filaments are arranged on the core shaft.

[0012] As a preferred example, the core shaft is a circular structure; the brush filaments are arranged on the core shaft along the circumferential direction.

[0013] As a preferred example, the inner diameter of the brush filament is larger than the outer diameter of the hub sleeve; the outer diameter of the brush filament is smaller than the diameter of the baffle.

[0014] As a preferred example, the baffle is a circular ring structure; the number of the brush rods is 3 to 5, and the brush rods are evenly distributed on the side of the baffle along the circumference.

[0015] Beneficial effects: Compared with the prior art, the technical solution of the utility model has the following beneficial effects: The solution of the utility model collects fine debris in the water by setting auxiliary blades and absorbers. The auxiliary blades rotate at high speed to form a circulating fluid in the cavity, and the circulating fluid drives the flow of fine fibers and other debris. When the water flows to the absorber, the debris is collected by the absorber and effectively intercepted, thereby improving the quality of the water in the cavity, making the mechanical seal in a good working environment, and thus ensuring the stable and reliable operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of an embodiment of the utility model;

[0017] Figure 2 This is a structural diagram of an impeller in an embodiment of the utility model;

[0018] Figure 3 This is a structural diagram of an absorber in an embodiment of the utility model;

[0019] Figure 4 It is a structural diagram of a fixing ring of an embodiment of the utility model.

[0020] The figure includes: absorber 1, absorption brush 11, baffle 12, connecting hole 13, brush rod 111, brush wire 112, core shaft 113, impeller 2, main blades 21, hub 22, hub sleeve 23, fixing ring 24, auxiliary blades 25, mechanical seal 3, mechanical seal seat 4, submersible electric pump 5, pump body 51, and rotor shaft 52. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1 As shown, a submersible mixer with an anti-winding function according to an embodiment of the utility model comprises an absorber 1, an impeller 2, a mechanical seal 3, a mechanical seal seat 4 and a submersible electric pump 5; the submersible electric pump 5 comprises a pump body 51 and a rotor shaft 52, and the rotor shaft 52 is arranged in the middle of the pump body 51; the mechanical seal seat 4 passes through the rotor shaft 52 and is arranged at the end of the pump body 51, and is connected to the pump body 51; the mechanical seal 3 passes through the rotor shaft 52 and is arranged on the mechanical seal seat 4; the impeller 2 is arranged at the end of the rotor shaft 52 and is connected to the rotor shaft 52; the impeller 2 is clearance-matched with the mechanical seal seat 4; a cavity is formed between the impeller 2 and the mechanical seal seat 4, the mechanical seal 3 is located in the cavity, and the absorber 1 is arranged inside the cavity and is connected to the impeller 2.

[0023] In a submersible mixer with an anti-winding function of the above structure, auxiliary blades 25 and an absorber 1 are arranged in the cavity where the mechanical seal is located. When the mixer is running, the auxiliary blades 25 rotate at high speed to generate a circulating fluid in the cavity. The circulating fluid drives the flow of fine fibers. When the fluid flows to the absorber 1, the absorber 1 intercepts the fine fibers, so that there will be no fibers or other debris in the fluid in the cavity that may affect the operation of the device, thereby purifying the water quality in the cavity and creating a good operating environment for the mechanical seal, thereby ensuring the reliable and stable operation of the overall device.

[0024] When the mixer is running, the impeller 2 rotates at high speed to stir and mix the sewage, and the auxiliary blades 25 rotate synchronously with the impeller 2 to generate flowing fluid. When the fluid flows through the hub 22, the fluid constantly changes direction to make turbulent motion, causing the fine fiber debris in the cavity to change its running position. When the fine fiber debris runs to the absorbent 1, since the absorbent 1 is provided with brush wires 112, the debris will be intercepted by the brush wires 112 and attached to the brush wires 112, and the water will flow out smoothly.

[0025] The fluid between the fixing ring 24 and the mechanical seal seat 4 enters into the cavity through the reflux hole 241, and is then driven by the high-speed rotating auxiliary blades 25 to flow. When the fluid flows to the inner wall of the hub 22, the running position of the fine fiber debris is continuously changed to increase the probability of the fine fibers being intercepted by the absorbent 1, thereby further purifying the mechanical seal running environment in the cavity and ensuring the stability of the operation.

[0026] When the mixer needs to be cleaned after running for a certain period of time, it is only necessary to remove the impeller 2 and clean the absorber 1 to remove the debris, which is easy to operate.

[0027] like Figure 2 As shown, as a preferred example, the impeller 2 includes a main blade 21, a hub 22, a hub sleeve 23, a fixing ring 24 and an auxiliary blade 25; the main blade 21 is arranged on the outer surface of the hub 22 and is fixedly connected to the hub 22; the hub sleeve 23 is connected to the end of the hub 22 away from the mechanical seal seat 4; the fixing ring 24 is arranged on the inner surface of the hub 22 close to the end of the mechanical seal seat 4; the auxiliary blade 25 is arranged on the fixing ring 24; the absorbent body 1 is connected to the hub sleeve 23, and the impeller 2 has a guiding effect on the fluid. Auxiliary blades 25 are arranged, and the auxiliary blades 25 rotate together with the impeller 2, driving the debris in the water body to flow, and intercepting the debris when flowing through the absorbent body 1, so that the overall device runs more smoothly and stably. The hub sleeve 23 is provided with a threaded hole, and the threaded hole is used to fix the absorbent body 1.

[0028] like Figure 4 As shown, as a preferred example, the fixing ring 24 is an annular structure; the fixing ring 24 is adapted to the hub 22; and a reflux hole 241 is provided on the fixing ring 24. The function of the reflux hole 241 is to make the fluid between the fixing ring 24 and the end face of the mechanical seal seat 4 flow back smoothly through the reflux hole 241 and proceed to the next circulation flow when the fluid flows to the rear end of the cavity, and to continuously change the running position of fine fiber debris through the circulation flow of the water body, increase the probability of debris flowing to the absorbent 1, continuously purify the water quality in the cavity, and improve the operating environment of the mechanical seal.

[0029] As a preferred example, the auxiliary blades 25 are arranged on the surface of the end of the fixing ring 24 away from the mechanical seal seat 4; the number of the auxiliary blades 25 is 2 to 5. The auxiliary blades 25 are arranged at the end of the fixing ring 24 away from the mechanical seal seat 4, which can generate a fluid moving toward the front end, and the fluid flows turbulently under the reflection of the inner surface of the hub, so that the fine fibers in the fluid constantly change their positions. The provision of multiple auxiliary blades 25 can improve the effect of turbulent flow and further improve the effect of trapping debris.

[0030] As a preferred example, the hub sleeve 23 is provided with an axial hole at its center, and the axial hole is adapted to the rotor shaft 52. When the mixer is running, the rotor shaft 52 rotates to drive the impeller 2 to rotate. The hub sleeve 23 is sleeved on the rotor shaft 52 through the axial hole, so that when the rotor shaft 52 rotates, the impeller 2 rotates more stably, and the impurities in the fluid are better trapped.

[0031] like Figure 3 As shown, as a preferred example, the absorbent body 1 includes an absorbent brush 11, a baffle 12 and a connecting hole 13; the absorbent brush 11 is connected to the baffle 12, and the connecting hole 13 is arranged on the baffle 12; the absorbent brush 11 includes a brush rod 111, a brush filament 112 and a core shaft 113; one end of the brush rod 111 is connected to the core shaft 113, and the other end is connected to the baffle 12; the brush filament 112 is arranged on the core shaft 113. When the mixer is running, the baffle 12 rotates, and the baffle 12 drives the core shaft 113 to rotate together through the brush rod 111. At this time, the brush filament 112 on the core shaft 113 collects and intercepts the debris in the fluid, and the debris adheres to the brush filament 112, so as to purify the water quality and ensure the stability of the device operation. The connecting hole 13 is used to connect the absorbent body 1 with the hub sleeve 23.

[0032] As a preferred example, the core shaft 113 is a circular structure; the brush filaments 112 are arranged circumferentially on the core shaft 113. The core shaft 113 is arranged in a circular structure so that it can rotate better, and the brush filaments 112 can be arranged more and more evenly, so that the interception effect of fiber debris is better and the debris can be intercepted with a greater probability.

[0033] As a preferred example, the inner diameter of the brush 112 is larger than the outer diameter of the hub sleeve 23; the outer diameter of the brush 112 is smaller than the diameter of the baffle 12. The inner diameter of the brush 112 is Φ1, and the outer diameter is Φ2; limiting the sizes of Φ1 and Φ2 can block and retain fine fiber debris to a greater extent without affecting the operation of the mechanical seal 3.

[0034] As a preferred example, the baffle 12 is a circular ring structure; the number of the brush rods 111 is 3 to 5, and the brush rods 111 are evenly distributed along the circumference on the side of the baffle 12. Since one end of the brush rod 111 is connected to the baffle 12 and the other end is connected to the core shaft 113, a plurality of brush rods 111 are provided, so that the baffle 12 can drive the core shaft 113 to rotate more stably, thereby having a better effect of intercepting debris.

[0035] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above specific embodiments. The above specific embodiments and the description in the specification are only for further illustrating the principles 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 claims and their equivalents.

Claims

1. A submersible mixer with an anti-winding function, characterized in that: The invention comprises an absorber (1), an impeller (2), a mechanical seal (3), a mechanical seal seat (4) and a submersible electric pump (5); the submersible electric pump (5) comprises a pump body (51) and a rotor shaft (52); the rotor shaft (52) is arranged in the middle of the pump body (51); the mechanical seal seat (4) passes through the rotor shaft (52) and is arranged at the end of the pump body (51) and is connected to the pump body (51); the mechanical seal (3) passes through the rotor shaft (52) and is arranged on the mechanical seal seat (4); the impeller (2) is arranged at the end of the rotor shaft (52) and is connected to the rotor shaft (52); the impeller (2) and the mechanical seal seat (4) are clearance-matched; a cavity is formed between the impeller (2) and the mechanical seal seat (4), the mechanical seal (3) is located in the cavity, and the absorber (1) is arranged inside the cavity and is connected to the impeller (2).

2. The submersible mixer according to claim 1, characterized in that: The impeller (2) comprises main blades (21), a hub (22), a hub sleeve (23), a fixing ring (24) and auxiliary blades (25); the main blades (21) are arranged on the outer surface of the hub (22) and are fixedly connected to the hub (22); the hub sleeve (23) is connected to an end of the hub (22) away from the mechanical seal seat (4); the fixing ring (24) is arranged on the inner surface of an end of the hub (22) close to the mechanical seal seat (4); the auxiliary blades (25) are arranged on the fixing ring (24); and the absorber (1) is connected to the hub sleeve (23).

3. The submersible mixer according to claim 2, characterized in that: The fixing ring (24) is an annular structure; the fixing ring (24) is matched with the wheel hub (22); and a reflux hole (241) is provided on the fixing ring (24).

4. The submersible mixer according to claim 2, characterized in that: The auxiliary blades (25) are arranged on the surface of the end of the fixing ring (24) away from the mechanical seal seat (4); the number of the auxiliary blades (25) is 2 to 5.

5. The submersible mixer according to claim 2, characterized in that: The hub sleeve (23) is provided with an axial hole at its center, and the axial hole is adapted to fit the rotor shaft (52).

6. The submersible mixer according to claim 2, characterized in that: The absorbent body (1) comprises an absorbent brush (11), a baffle (12) and a connecting hole (13); the absorbent brush (11) is connected to the baffle (12), and the connecting hole (13) is arranged on the baffle (12); the absorbent brush (11) comprises a brush rod (111), brush filaments (112) and a core shaft (113); one end of the brush rod (111) is connected to the core shaft (113), and the other end is connected to the baffle (12); the brush filaments (112) are arranged on the core shaft (113).

7. The submersible mixer according to claim 6, characterized in that: The core shaft (113) is a circular structure; the brush filaments (112) are arranged on the core shaft (113) along the circumferential direction.

8. The submersible mixer according to claim 6, characterized in that: The inner diameter of the brush wire (112) is greater than the outer diameter of the hub sleeve (23); and the outer diameter of the brush wire (112) is smaller than the diameter of the baffle (12).

9. The submersible mixer according to claim 6, characterized in that: The baffle (12) is a circular ring structure; the number of the brush rods (111) is 3 to 5, and the brush rods (111) are evenly distributed on the side of the baffle (12) along the circumference.

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