Integrated screw vacuum pump with integrated pulverization function

Abstract

The application discloses an integrated water ring vacuum pump with a crushing function, and relates to the technical field of water ring vacuum pumps.The device integrates the functions of crushing, pumping, sealing and cooling in the same pump body.The bearing part is sequentially bolted with a transparent observation plate and a multistage shell to form a front crushing cavity and a rear working cavity.The transmission part adopts an outer rotor structure, the rotor suspends an arm fixed cutter and a spiral pump blade, and coaxially sleeves a fixed cutter.The sewage containing sundries enters the crushing cavity through an inlet pipe, is axially and radially sheared and ground by the passive cutter and the fixed cutter, is immediately pumped into the working cavity by the spiral pump blade to establish a water ring vacuum, and is finally discharged through an outlet pipe.The rotor is directly immersed in water for cooling, and an external fan or a circulating water circuit is not needed.The application cancels the traditional split arrangement of a pump, a coupling, a motor and a front crusher, has the advantages of compact structure, small occupation, anti-winding, anti-clogging, low temperature rise, small vibration and noise, convenient maintenance and the like.

Description

Technical Field

[0001] This invention relates to the field of water ring vacuum pump technology, specifically to an integrated screw vacuum pump with pulverizing function. Background Technology

[0002] When pumping wastewater containing solid particles or fibrous impurities, water ring vacuum pumps require an additional pre-powdering device, resulting in a lengthy system, numerous sealing points, and a high failure rate. Traditional split-structure pumps ("pump + coupling + motor") have large shaft spans, low critical speeds, and high vibration and noise. Furthermore, the externally mounted motor necessitates an independent cooling and circulation system, increasing energy consumption and floor space. Additionally, existing cutting mechanisms are often located outside the impeller inlet, where axial clearance easily leads to long fibers entangled, causing instantaneous overload upon jamming and potentially burning out the motor. Summary of the Invention

[0003] To address the aforementioned technical problems, the present invention provides the following technical solution: an integrated screw vacuum pump with pulverizing function, comprising: The support unit includes an observation plate. A first housing is disposed on one side of the observation plate, and an inlet pipe is disposed on the top of the first housing. The observation plate and the first housing form a crushing chamber. A second housing is disposed on the other side of the first housing. The second housing is disposed on one side of a fourth housing via a third housing. A fifth housing is disposed on the other side of the fourth housing, and an outlet pipe is disposed on the top of the fifth housing. The second, third, and fourth housings together form a working chamber. The center of the second and fourth housings has a hollow structure. The transmission unit is disposed within the working cavity. The transmission unit includes a stator located at the center of the fifth housing. A moving blade and a rotor mounting ring are respectively disposed on the circumferential side of the stator via a first bearing and a second bearing. The moving blade is disposed at one end of the rotor via a second fixing bolt, and the rotor mounting ring is fixedly disposed at the other end of the rotor. A pump impeller is fixedly disposed on the circumferential side of the rotor. A fixed blade is sleeved on the outside of the moving blade. The fixed blade is fixed to one end of the stator via a mounting bolt and is connected to the second housing via a first fixing bolt.

[0004] Furthermore, the moving blade has a first cutting surface in the axial direction and a second cutting surface in the radial direction. The fixed blade has multiple fluid holes in the axial direction for fluid to pass through. When the moving blade rotates, the moving blade and the fixed blade cooperate to grind and shear impurities.

[0005] Furthermore, a second moving ring is provided on the moving blade, a second stationary ring is provided on one side of the second moving ring, and the second stationary ring is provided on the stator.

[0006] Furthermore, a second fluororubber seal is provided on the other side of the second moving ring. The second fluororubber seal is fixedly disposed on the outer side of the stator circumference and slides with the moving blade.

[0007] Furthermore, an end cap is provided on the side of the observation plate away from the first housing, and the observation plate is made of transparent material.

[0008] Furthermore, the end cap is detachably disposed on the side of the fifth housing away from the fourth housing.

[0009] Furthermore, the pump blade has a spiral structure, and the outer surface of the pump blade is coated with an anti-corrosion material.

[0010] Furthermore, a first stationary ring is provided on the stator, and a first rotating ring is provided on one side of the first stationary ring. The first rotating ring is provided on the rotor mounting ring.

[0011] Furthermore, a first fluororubber seal is provided on the other side of the first moving ring, and the first fluororubber seal is provided on the stator.

[0012] The advantages of this invention compared to the prior art are: 1. The moving-fixed blade combination is located at the front end of the pump blade. Before impurities enter the working chamber, they are sheared and ground by both axial and radial forces. Long fibers are not easy to get tangled, large solids are broken instantly, and the flow cross section is always kept unobstructed, significantly reducing the risk of jamming, overload, and burn-out.

[0013] 2. The rotor is directly immersed in water, and the water flow carries away heat in real time, eliminating the need for a fan or circulating cooling water circuit. This results in low operating temperature rise, extended insulation life, and simultaneous reduction in noise and vibration.

[0014] 3. The functions of crushing, suction, sealing and cooling are all integrated into the same pump body, eliminating the need for an external crusher, coupling or independent cooling system. The system is shorter, occupies less space and is easier to install.

[0015] 4. Compared with existing technologies, the external rotor structure has a larger diameter and higher moment of inertia. When encountering instantaneous load impacts, the speed fluctuation is small, the pump runs smoothly, and the impact of water hammer on the pipeline network is also more gentle.

[0016] 5. The front transparent observation panel allows direct viewing of the crushing chamber and cutter disc, making blockages and wear immediately apparent. It eliminates the need for disassembly to determine whether cleaning or replacement of vulnerable parts is required, saving time and effort in daily inspections. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the overall structure of the present invention.

[0018] Figure 2 This is a partial structural cross-sectional view of the support portion of the present invention.

[0019] Figure 3 This is a partial structural cross-sectional view of the transmission part of the present invention.

[0020] Figure 4 This is a partial structural cross-sectional view of the present invention.

[0021] Figure 5 This is a schematic diagram of a partial structure of the transmission part of the present invention. Figure 1 .

[0022] Figure 6 This is a schematic diagram of a partial structure of the transmission part of the present invention. Figure 2 .

[0023] Reference numerals: 100-Inlet pipe; 101-End cover seal; 102-Observation plate; 103-First housing; 104-Second housing; 105-Third housing; 106-Fourth housing; 107-Outlet pipe; 108-Fifth housing; 109-End cover; 110-Check valve; 111-Working chamber; 112-Grinding chamber; 200-Rotor; 201-Stator; 202-Moving blade; 203-First bearing; 204-Second bearing; 205-Pump impeller; 206-Second moving ring; 207-Second fluororubber seal; 208-Fixed blade; 209-Fixing bolt one; 210-Fixing bolt two; 211-Second stationary ring; 212-Rotor mounting ring; 213-Mounting bolt; 214-First stationary ring; 215-First moving ring; 216-First fluororubber seal; 217-Shearing blade. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figures 1 to 6As shown, an integrated screw vacuum pump with pulverizing function includes a support unit and a transmission unit. The support unit includes an inlet pipe 100, an end cap 101, an observation plate 102, a first housing 103, a second housing 104, a third housing 105, a fourth housing 106, an outlet pipe 107, a fifth housing 108, an end cap 109, a one-way valve 110, a working chamber 111, and a pulverizing chamber 112. The first housing 103 is bolted to one side of the observation plate 102. The inlet pipe 100 is located on the top of the first housing 103, and the one-way valve 110 is installed inside the inlet pipe 100. The observation plate 102 is connected to the first housing 103. The housing 103 forms a crushing chamber 112. A second housing 104 is bolted to the other side of the first housing 103. The second housing 104 is bolted to the third housing 105. The third housing 105 is bolted to one side of the fourth housing 106. A fifth housing 108 is bolted to the other side of the fourth housing 106. An outlet pipe 107 is provided on the top of the fifth housing 108. The second housing 104, the third housing 105, and the fourth housing 106 together form a working chamber 111. The center of the second housing 104 and the fourth housing 106 has a hollow structure to facilitate fluid flow.

[0026] The transmission unit is located within the working chamber 111 and includes a rotor 200, a stator 201, a moving blade 202, a first bearing 203, a second bearing 204, a pump impeller 205, a second moving ring 206, a second fluororubber oil seal 207, a fixed blade 208, a first fixing bolt 209, a second fixing bolt 210, a second stationary ring 211, a rotor mounting ring 212, a mounting bolt 213, a first stationary ring 214, a first moving ring 215, a first fluororubber oil seal 216, and a shearing blade 217. The stator 201 is fixedly positioned at the center of the fifth housing 108, and the first bearing 202 passes through the circumference of the stator 201. 03. The second bearing 204 is provided with a moving blade 202 and a rotor mounting ring 212. The moving blade 202 is set at one end of the rotor 200 by fixing bolt 210. The rotor mounting ring 212 is fixedly set at the other end of the rotor 200. The pump blade 205 is fixedly set on the circumference of the rotor 200. A shearing blade 217 is set on the end of the pump blade 205 away from the moving blade 202 by bolts. A fixed blade 208 is sleeved on the outside of the moving blade 202. The fixed blade 208 is fixed to one end of the stator 201 by mounting bolt 213. The fixed blade 208 is connected to the second housing 104 by fixing bolt 209.

[0027] Furthermore, as a preferred embodiment, such as Figures 3 to 6As shown, in this embodiment, the moving blade 202 has a first cutting surface in the axial direction and a second cutting surface in the radial direction. The fixed blade 208 is cylindrical and has four fluid holes in the axial direction for fluid passage. When the moving blade 202 rotates, the first and second cutting surfaces of the moving blade 202 fit against the inner wall of the fixed blade 208, grinding and shearing the impurities that enter between the fixed blade 208 and the moving blade 202 from the fluid holes, preventing impurities from clogging the pump body.

[0028] Furthermore, as a preferred embodiment, such as Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, in this embodiment, a second moving ring 206 is fixedly provided on the moving blade 202, and a second stationary ring 211 is slidably provided on one side of the second moving ring 206. The second stationary ring 211 is fixedly provided on the stator 201. When the moving blade 202 rotates, it drives the second moving ring 206 to rotate. The rotation of the second moving ring 206 and the stationary second stationary ring 211 form a dynamic seal.

[0029] Furthermore, as a preferred embodiment, such as Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, in this embodiment, a second fluororubber seal 207 is provided on the other side of the second moving ring 206. The second fluororubber seal 207 is fixedly disposed on the outer side of the stator 201. The second fluororubber seal 207 is slidably engaged with the moving blade 202. When the moving blade 202 rotates, it is slidably engaged with the second fluororubber seal 207 to form a dynamic seal.

[0030] Furthermore, as a preferred embodiment, such as Figure 1 , Figure 2 As shown, in this embodiment, an end cap 101 is provided on the side of the observation plate 102 away from the first housing 103. The end cap 101 is mounted on the observation plate 102 by bolts. The observation plate 102 is made of transparent high-strength glass material, which makes it convenient for users to observe the inside of the pump body.

[0031] Furthermore, as a preferred embodiment, such as Figure 1 , Figure 2 As shown, in this embodiment, the end cover 109 is detachably mounted on the side of the fifth housing 108 away from the fourth housing 106 by bolts. A wiring device is provided on the end cover 109, and the wiring device is electrically connected to the stator 201 by wires.

[0032] Furthermore, as a preferred embodiment, such as Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, in this embodiment, the pump blade 205 has a spiral structure, and the outer surface of the pump blade 205 is coated with a coating made of polytetrafluoroethylene or other anti-corrosion materials.

[0033] Furthermore, as a preferred embodiment, such as Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, in this embodiment, a first stationary ring 214 is fixedly disposed on the stator 201, and a first rotating ring 215 is disposed on one side of the first stationary ring 214. The first rotating ring 215 is fixedly disposed on the rotor mounting ring 212. When the rotor mounting ring 212 rotates, it drives the first rotating ring 215 to rotate. At this time, the first rotating ring 215 and the stationary first stationary ring 214 form a dynamic seal.

[0034] Furthermore, as a preferred embodiment, such as Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, in this embodiment, a first fluororubber seal 216 is provided on the other side of the first moving ring 215. The first fluororubber seal 216 is fixedly mounted on the stator 201. When the rotor mounting ring 212 rotates, it forms a dynamic seal with the first fluororubber seal 216.

[0035] like Figures 1 to 6 As shown, the integrated screw vacuum pump with pulverizing function disclosed in this invention has the following working principle: Place the device in the desired location, connect the inlet pipe 100 to the drainage pipe, turn on the power switch, and the one-way valve 110 will automatically open. After AC power is applied, the stator 201 generates a rotating magnetic field; the rotor 200 has a built-in permanent magnet that rotates with the rotating magnetic field and outputs power; at this time, the rotor 200 rotates, driving the pump blade 205, the moving blade 202, the rotor mounting ring 212, and the shearing blade 217 to rotate together. When the pump blade 205 rotates, it draws water from the inlet pipe 100 into the crushing chamber 112, and simultaneously allows water to flow from the fluid hole on the fixed blade 208 into the space between the fixed blade 208 and the moving blade 202. The rotating moving blade 202... 02. The impurities in the water are sheared, crushed, and ground to thoroughly crush them and prevent them from clogging the pump body. After being crushed by the moving blade 202 and the fixed blade 208, the impurities enter the working chamber 111 with the water through the gap between the moving blade 202 and the fixed blade 208. Finally, they enter the fifth housing 108 through the hollow structure on the fourth housing 106 and are finally discharged from the outlet pipe 107. The rotating shearing blade 217 also has a shearing effect on the impurities. During this process, the water flow directly contacts the outer shell of the rotor 200, and the water flow is used to cool the rotor 200 and its interior in real time to prevent high temperature from affecting the equipment.

[0036] Because the rotor 200 is located outside the stator 201, this structure results in a relatively large rotor diameter. According to the formula for calculating moment of inertia, for a given mass, the larger the radius, the greater the moment of inertia. Therefore, the rotor 200 has a larger moment of inertia compared to traditional pump bodies, which is more conducive to the discharge of dirty water containing contaminants. At the same time, the speed change is small when the load fluctuates, resulting in relatively stable operation.

[0037] The terms "connection" and "fixing" appearing in the description of this invention can refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meaning of the above terms in this invention should be understood according to the specific circumstances.

[0038] In the description of this invention, the terms "center," "upper," "lower," "horizontal," "inner," and "outer," etc., are used only to indicate the orientation or positional relationship for the convenience of describing this invention and to simplify the description, and do not indicate or imply a specific orientation that the device or element referred to must have, and therefore should not be construed as a limitation of this invention.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated rotary vacuum pump with pulverizing function, characterized in that, include: The support unit includes an observation plate (102), a first housing (103) is provided on one side of the observation plate (102), an inlet pipe (100) is provided on the top of the first housing (103), the observation plate (102) and the first housing (103) form a crushing chamber (112), a second housing (104) is provided on the other side of the first housing (103), the second housing (104) is provided on one side of the fourth housing (106) through the third housing (105), a fifth housing (108) is provided on the other side of the fourth housing (106), and an outlet pipe (107) is provided on the top of the fifth housing (108); the second housing (104), the third housing (105), and the fourth housing (106) together form a working chamber (111); the center of the second housing (104) and the fourth housing (106) is a hollow structure; The transmission unit is located in the working chamber (111). The transmission unit includes a stator (201) located at the center of the fifth housing (108). The rotor (200) is located outside the stator (201). The stator (201) is provided with a moving blade (202) and a rotor mounting ring (212) on the circumferential side via a first bearing (203) and a second bearing (204), respectively. The moving blade (202) is provided at one end of the rotor (200) via a second fixing bolt (210). The rotor mounting ring (212) is fixedly provided at the other end of the rotor (200). The pump blade (205) is fixedly provided on the circumferential side of the rotor (200). A fixed blade (208) is sleeved on the outside of the moving blade (202). The fixed blade (208) is fixed to one end of the stator (201) via a mounting bolt (213). The fixed blade (208) is connected to the second housing (104) via a first fixing bolt (209). The moving blade (202) has a first blade surface in the axial direction and a second blade surface in the radial direction. The fixed blade (208) has multiple fluid holes in the axial direction for fluid to pass through. When the moving blade (202) rotates, the moving blade (202) and the fixed blade (208) work together to grind and shear impurities. The moving blade (202) is provided with a second moving ring (206), and a second stationary ring (211) is provided on one side of the second moving ring (206). The second stationary ring (211) is provided on the stator (201). A second fluororubber oil seal (207) is provided on the other side of the second moving ring (206). The second fluororubber oil seal (207) is fixedly provided on the outer side of the stator (201) circumference and slides with the moving blade (202).

2. The integrated rotary vacuum pump with pulverizing function according to claim 1, characterized in that: The observation plate (102) is provided with an end cap (101) on the side away from the first housing (103), and the observation plate (102) is made of transparent material.

3. The integrated rotary vacuum pump with pulverizing function according to claim 1, characterized in that: The fifth housing (108) is detachably provided with an end cap (109) on the side away from the fourth housing (106).

4. The integrated rotary vacuum pump with pulverizing function according to claim 1, characterized in that: The pump blade (205) has a spiral structure, and the outer surface of the pump blade (205) is coated with anti-corrosion material.

5. The integrated screw vacuum pump with pulverizing function according to claim 1, characterized in that: The stator (201) is provided with a first stationary ring (214), and a first moving ring (215) is provided on one side of the first stationary ring (214). The first moving ring (215) is provided on the rotor mounting ring (212).

6. The integrated rotary vacuum pump with pulverizing function according to claim 5, characterized in that: A first fluororubber oil seal (216) is provided on the other side of the first moving ring (215), and the first fluororubber oil seal (216) is provided on the stator (201).

Images