Efficient and energy-saving shielding circulating pump

Abstract

The utility model provides an efficient energy-saving shielding circulating pump, which comprises a pump shell, a motor, an impeller, a water inlet pipe and a water outlet pipe, the motor is fixed on the pump shell, the impeller is rotatably connected in the pump shell and is driven by the motor, the water inlet pipe and the water outlet pipe are respectively fixed at two ends of the pump shell, and the water inlet pipe and the water outlet pipe are fixed on the pump shell. After the impeller rotates, water is sucked into the pump shell from the water inlet pipe and then guided out from the water outlet pipe, a shielding cover is fixedly connected into the pump shell, the motor is located in the shielding cover, a variable frequency controller is fixedly connected to the outer wall of the pump shell and electrically connected with the motor, and the variable frequency controller is connected with the water pump. The frequency conversion controller can adjust the rotating speed of the motor, the efficient and energy-saving effects are achieved, and the shielding cover can improve the corrosion resistance of the motor.

Description

TECHNICAL FIELD

[0001] The utility model relates to a water pump, in particular to an efficient and energy-saving shielding circulating pump. BACKGROUND

[0002] At present, the Chinese patent with the authorization announcement number CN220168182U discloses a vertical centrifugal water pump convenient to maintain, which comprises a power mechanism and a centrifugal mechanism, the power mechanism comprises a three-phase alternating current asynchronous motor, a support frame, an output shaft coupling, a bidirectional coupling and an impeller coupling, the support frame is three-section type, the center is hollow and not sealed, the two ends of the bidirectional coupling are connected with the output shaft coupling and the impeller coupling respectively, and the centrifugal mechanism comprises a body, a cover, a bearing seat, an impeller shaft and a centrifugal impeller.

[0003] The centrifugal water pump adopts a vertical structure, is stable and compact in structure, convenient to install and debug, stable in operation of each component, extremely low in noise, high in precision of precision bearings, good in reliability and long in service life, the support frame plays a supporting and protecting role, and maintenance is convenient and fast.

[0004] However, when the water tank is used, the water tank usually uses seawater to breed fish, and the seawater is corrosive, which is easy to corrode the power mechanism. INVENTION CONTENTS

[0005] Therefore, the utility model aims at providing an efficient and energy-saving shielding circulating pump, which is provided with a shielding cover and a frequency conversion controller, so that the motor has good corrosion resistance, the working frequency of the motor can be adjusted, and the energy-saving effect is achieved.

[0006] In order to solve the above technical problems, the technical scheme of the utility model is as follows: an efficient and energy-saving shielding circulating pump, which comprises a pump shell, a motor, an impeller, an inlet pipe and an outlet pipe, the motor is fixed on the pump shell, the impeller is rotatably connected in the pump shell and is driven by the motor, the inlet pipe and the outlet pipe are respectively fixed at two ends of the pump shell, the impeller rotates to suck water from the inlet pipe into the pump shell and then guide the water out of the outlet pipe, a shielding cover is fixedly connected in the pump shell, the motor is located in the shielding cover, a frequency conversion controller is fixedly connected on the outer wall of the pump shell, and the frequency conversion controller is electrically connected with the motor.

[0007] The shielding cover is arranged, so that the seawater is not easy to contact the motor, thereby greatly improving the corrosion resistance of the motor; the frequency conversion controller can adjust the working frequency of the motor, that is, the rotating speed of the impeller, so as to reduce the energy consumption; and according to the difference between the illumination and the biological activity during the day and night, the water flow speed can be adjusted to simulate the natural environment and improve the comfort of the organisms.

[0008] As a preferred scheme of the utility model, the inner wall of the pump shell and the outer wall of the shielding cover are fixedly connected with a heat dissipation sleeve, the inner wall of the heat dissipation sleeve is attached to the outer wall of the shielding cover, and the outer wall of the heat dissipation sleeve is attached to the inner wall of the pump shell.

[0009] The above technical scheme is realized, heat generated by the operation of the motor is transmitted to the heat dissipation sleeve through the shielding cover, and then transmitted to the pump shell, so that the motor can be quickly cooled, and the motor can continuously and efficiently work.

[0010] As a preferred scheme of the utility model, the variable frequency controller comprises a shell, a cover plate, a controller main body, the shell is fixed to the outer wall of the pump shell, the cover plate is fixed to the opening of the shell, a containing cavity for storing the controller main body is formed between the cover plate and the shell, the controller main body is fixed to the inside of the shell and electrically connected with the motor, a communication hole for penetrating the wire is formed in the side wall of the shell, and a sealing structure is arranged on the communication hole.

[0011] The above technical scheme is realized, the wire is penetrated through the communication hole and electrically connected with the controller main body, the wire and the shell are well sealed by the sealing structure, so that the controller main body is not easily corroded by seawater.

[0012] As a preferred scheme of the utility model, the sealing structure comprises a first sealing ring, a screw sleeve, a driving sleeve, a screw pipe, a guide rod, a guide hole and a second sealing ring, the driving sleeve is located outside the shell, one end of the screw pipe is fixed to the driving sleeve, the other end of the screw pipe is threadedly connected with the screw sleeve after penetrating through the communication hole, the guide hole is formed in the screw sleeve, the axis of the guide hole is parallel to the axis of the screw pipe, one end of the guide rod is fixed to the inner wall of the shell, the other end of the guide rod is penetrated in the guide hole, a first inclined surface is formed in the screw sleeve, a second inclined surface corresponding to the first inclined surface is formed in the screw pipe, the two sides of the first sealing ring are respectively abutted against the first inclined surface and the second inclined surface, the first sealing ring is used for being sleeved on the wire and abutting the inner wall of the first sealing ring against the outer wall of the wire, the second sealing ring is fixed to the inner wall of the screw pipe, and the second sealing ring is used for being sleeved on the wire and abutting the inner wall of the second sealing ring against the outer wall of the wire.

[0013] The technical scheme is realized in the following way: the wire is threaded through the screw pipe, the first sealing ring, and then connected with the controller body; the driving sleeve is rotated to drive the screw pipe to rotate; the screw sleeve is moved along the guide rod to the inner wall of the shell through the transmission of the screw thread; the first sealing ring is pressed by the first and second inclined surfaces to increase the pressure between the first sealing ring and the wire and improve the sealing performance; the screw sleeve is positioned through the self-locking property of the screw thread; the first sealing ring has good sealing performance, so that the seawater is less likely to corrode the controller body; the vibration generated by the operation of the motor is less likely to cause the screw sleeve and the driving sleeve to loosen, so that the position of the wire can be maintained to enable the controller body to control the motor efficiently; the second sealing ring is used to preliminarily seal the wire and the screw pipe; and the first sealing ring is used to seal the wire and the screw sleeve again to greatly improve the sealing performance.

[0014] As a preferred scheme of the utility model, the outer wall of the guide rod is provided with a placing groove, and an arc-shaped elastic sheet is arranged in the placing groove and fixed to the inner wall of the placing groove at both ends.

[0015] The technical scheme is realized in the following way: the driving sleeve is rotated to make the screw sleeve abut against the outer wall of the shell; the middle part of the elastic sheet is stretched out of the placing groove and abuts against the outer wall of the screw sleeve through the elastic force of the elastic sheet; the elastic sheet exerts a force on the screw sleeve in the direction of approaching the shell; and the screw sleeve and the driving sleeve are less likely to loosen when the motor operates at high power and generates intense vibration.

[0016] As a preferred scheme of the utility model, the upper surface of the shell is provided with an inspection hole, and a rubber plug is embedded in the inspection hole.

[0017] The technical scheme is realized in the following way: the rubber plug is taken out, so that the controller body can be inspected through the inspection hole; and the rubber plug is arranged to prevent the seawater from corroding the controller body.

[0018] As a preferred scheme of the utility model, the rubber plug comprises a sealing plate, a sealing ring and a plug column, the sealing plate is fixed to the upper surface of the plug column and used to abut against the outer wall of the shell, the inspection hole is located in the inside of the sealing plate, and the sealing ring is fixed to the outer wall of the plug column and abuts tightly against the inner wall of the inspection hole.

[0019] The technical scheme is realized in the following way: the plug column is embedded in the inspection hole to make the sealing plate abut tightly against the outer wall of the shell and the sealing ring abut tightly against the inner wall of the inspection hole, so that double sealing is realized to prevent the controller body from being corroded.

[0020] As a preferred scheme of the utility model, the cover plate is rotatably connected with an adjusting knob used to adjust the controller body.

[0021] The above technical solution is implemented so as to adjust the controller body by adjusting the knob. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is an external structure schematic view of the utility model;

[0023] Figure 2 It is a position schematic view of embodying the water inlet pipe and the water outlet pipe;

[0024] Figure 3 It is a section schematic view of embodying the utility model;

[0025] Figure 4 It is a structure schematic view of embodying the frequency conversion controller;

[0026] Figure 5 It is an enlarged view of A of embodying Figure 4

[0027] Figure 6 It is a position schematic view of embodying the screw pipe;

[0028] Figure 7 It is a structure schematic view of embodying the screw sleeve;

[0029] Figure 8 It is a section schematic view of embodying the screw pipe;

[0030] Figure 9 It is a corresponding schematic view of embodying the first inclined surface and the second inclined surface.

[0031] Reference signs: 11, pump shell; 12, motor; 13, impeller; 14, water inlet pipe; 15, water outlet pipe; 21, shield cover; 22, heat dissipation sleeve; 3, frequency conversion controller; 31, shell; 32, cover plate; 33, controller body; 4, sealing structure; 41, first sealing ring; 42, screw sleeve; 43, driving sleeve; 44, screw pipe; 45, guide rod; 46, guide hole; 47, second sealing ring; 48, first inclined surface; 49, second inclined surface; 5, placing groove; 51, elastic sheet; 6, adjusting knob; 7, maintenance hole; 8, rubber plug; 81, sealing plate; 82, sealing ring; 83, plug column. DETAILED DESCRIPTION

[0032] The specific embodiment of the utility model is further described in detail below in combination with the drawings, so that the technical scheme of the utility model is more easily understood and mastered.

[0033] ​The utility model provides a high -efficient energy -conserving shielding circulating pump, including pump shell 11, motor 12, impeller 13, water inlet pipe 14, water outlet pipe 15. Motor 12 is fixed on pump shell 11, impeller 13 is rotatably connected in pump shell 11 and is driven through motor 12, water inlet pipe 14 and water outlet pipe 15 are fixed on both ends of pump shell 11 respectively. Impeller 13 rotates and will be water from water inlet pipe 14 sucked into pump shell 11 and then exported from water outlet pipe 15, this is prior art, and the embodiment will not be repeated.

[0034] Shielding cover 21 is fixedly connected in pump shell 11, and motor 12 is located in shielding cover 21, and shielding cover 21 is made of stainless steel. Radiator 22 is fixedly connected between the inner wall of pump shell 11 and the outer wall of shielding cover 21, the inner wall of radiator 22 is attached to the outer wall of shielding cover 21, and the outer wall of radiator 22 is attached to the inner wall of pump shell 11. Radiator 22 is made of copper. The heat generated by the operation of motor 12 is transferred to shielding cover 21, the heat on shielding cover 21 is transferred to radiator 22, and then the heat is transferred to pump shell 11, so that the heat dissipation efficiency of motor 12 is greatly improved.

[0035] Frequency converter 3 is fixedly connected on the outer wall of pump shell 11, and frequency converter 3 is electrically connected with motor 12. Frequency converter 3 includes shell 31, cover plate 32 and controller main body 33. Shell 31 is fixed on the outer wall of pump shell 11, cover plate 32 is fixed on the opening of shell 31, and the closed containing cavity for storing controller main body 33 is formed between cover plate 32 and shell 31.

[0036] Controller main body 33 is fixed in the inside of shell 31 and is electrically connected with motor 12 through shell 31, pump shell 11, radiator 22 and shielding cover 21.

[0037] The side wall of shell 31 is provided with a communication hole for passing wires, and the communication hole is provided with a sealing structure 4.

[0038] Sealing structure 4 includes first sealing ring 41, screw sleeve 42, driving sleeve 43, screw pipe 44, guide rod 45, guide hole 46 and second sealing ring 47. Driving sleeve 43 is located outside shell 31, one end of screw pipe 44 is fixed on driving sleeve 43, the other end of screw pipe 44 is threadedly connected with screw sleeve 42 after penetrating through the communication hole, and screw pipe 44 is rotatably connected with the communication hole. Screw pipe 44, driving sleeve 43 and screw sleeve 42 are coaxially arranged. Guide hole 46 is arranged on screw sleeve 42, the length direction of guide hole 46 is parallel to the axis of screw pipe 44, one end of guide rod 45 is fixed on the inner wall of shell 31, and guide rod 45 is slidably connected in guide hole 46.

[0039] The first inclined surface 48 is arranged on the screw sleeve 42, the second inclined surface 49 corresponding to the first inclined surface 48 is arranged on the screw pipe 44, and the first sealing ring 41 in the shape of a circular ring is arranged between the first inclined surface 48 and the second inclined surface 49. The first sealing ring 41 is arranged on the wire and the inner wall of the first sealing ring 41 is tightly contacted with the outer wall of the wire. The second sealing ring 47 is fixed on the inner wall of the screw pipe 44 and is tightly contacted with the outer wall of the wire. The friction between the second sealing ring 47 and the wire is smaller than the friction between the first sealing ring 41 and the wire, so that the wire is not twisted and damaged.

[0040] During installation, the wire is arranged through the driving sleeve 43, the screw pipe 44, the second sealing ring 47 and the first sealing ring 41, and then the wire is connected with the controller body 33. The guide hole 46 on the screw sleeve 42 is arranged on the guide rod 45, then the driving sleeve 43 is rotated, the screw sleeve 42 is moved towards the screw pipe 44, the first inclined surface 48 and the second inclined surface 49 tightly contact the first sealing ring 41, and the first sealing ring 41 is deformed towards the wire, so that the sealing performance is greatly improved.

[0041] The double-layer sealing is realized by the first sealing ring 41 and the second sealing ring 47, so that the sealing effect is greatly improved.

[0042] The placing groove 5 in the shape of a square in cross section is arranged on the outer wall of the guide rod 45, and the length direction of the placing groove 5 is parallel to the length direction of the guide rod 45. The arc-shaped elastic sheet 51 is arranged in the placing groove 5, and the two ends of the elastic sheet 51 are fixed on the inner wall of the placing groove 5. When the screw sleeve 42 is tightly contacted with the inner wall of the shell 31, the middle part of the elastic sheet 51 is stretched out of the placing groove 5 and is tightly contacted with the outer wall of the screw sleeve 42, so that the connection between the screw sleeve 42 and the shell 31 is more stable, and the screw sleeve 42 is not easily separated from the shell 31 when the motor 12 is vibrated.

[0043] The adjusting knob 6 for adjusting the controller body 33 is rotatably connected to the cover plate 32. When the adjusting knob 6 is adjusted, the rotating speed of the motor 12 is controlled by the controller body 33, so that the energy-saving effect is realized.

[0044] The maintenance hole 7 is arranged on the upper surface of the shell 31, and the rubber plug 8 is embedded in the maintenance hole 7. The rubber plug 8 comprises the sealing plate 81, the sealing ring 82 and the plug column 83 which are integrally arranged. The sealing plate 81 is fixed on the upper surface of the plug column 83 and is tightly contacted with the outer wall of the shell 31, and the maintenance hole 7 is arranged in the inside of the sealing plate 81. The sealing ring 82 is fixed on the outer wall of the plug column 83 and is tightly contacted with the inner wall of the maintenance hole 7. Since the rubber plug 8 has no load and has small mass, and the friction between the rubber plug 8 and the maintenance hole 7 is large, the rubber plug 8 can be stably fixed on the maintenance hole 7.

[0045] When the controller needs to be repaired, the rubber plug 8 is removed, the drive sleeve 43 is rotated, and the wire is pulled towards the controller body 33, so that the connection between the controller body 33 and the wire is maintained, thereby achieving the effect of efficient maintenance.

[0046] Of course, the above is only a typical example of the present application, in addition to this, the present application can have other various specific embodiments, any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of the present application.

Claims

1. A high efficiency energy saving shield circulating pump, comprising a pump shell (11), a motor (12), an impeller (13), an inlet pipe (14) and an outlet pipe (15), the motor (12) is fixed on the pump shell (11), the impeller (13) is rotatably connected in the pump shell (11) and is driven by the motor (12), the inlet pipe (14) and the outlet pipe (15) are respectively fixed on two ends of the pump shell (11), the impeller (13) rotates to suck water from the inlet pipe (14) into the pump shell (11) and then leads the water out from the outlet pipe (15), characterized in that: The pump shell (11) is fixedly connected with a shielding cover (21), the motor (12) is located in the shielding cover (21), the outer wall of the pump shell (11) is fixedly connected with a variable frequency controller (3), and the variable frequency controller (3) is electrically connected with the motor (12). ​ 2. The high efficiency and energy saving canned motor pump according to claim 1, characterized in that: The inner wall of the pump shell (11) and the outer wall of the shielding cover (21) are fixedly connected with a heat dissipation sleeve (22), the inner wall of the heat dissipation sleeve (22) is attached to the outer wall of the shielding cover (21), and the outer wall of the heat dissipation sleeve (22) is attached to the inner wall of the pump shell (11).

3. The high efficiency and energy saving canned motor pump according to claim 1, characterized in that: The variable frequency controller (3) comprises a shell (31), a cover plate (32) and a controller body (33), the shell (31) is fixed to the outer wall of the pump shell (11), the cover plate (32) is fixed to the opening of the shell (31), a containing cavity for storing the controller body (33) is formed between the cover plate (32) and the shell (31), the controller body (33) is fixed to the inside of the shell (31) and electrically connected with the motor (12), a communication hole for passing wires is formed in the side wall of the shell (31), and a sealing structure (4) is arranged on the communication hole.

4. The high efficiency and energy saving canned motor pump according to claim 3, characterized in that: The sealing structure (4) comprises a first sealing ring (41), a screw sleeve (42), a driving sleeve (43), a screw pipe (44), a guide rod (45), a guide hole (46) and a second sealing ring (47), the driving sleeve (43) is located outside the shell (31), one end of the screw pipe (44) is fixed to the driving sleeve (43), the other end of the screw pipe (44) is threadedly connected with the screw sleeve (42) after penetrating through the communication hole, the guide hole (46) is formed in the screw sleeve (42), the axis of the guide hole (46) is parallel to the axis of the screw pipe (44), one end of the guide rod (45) is fixed to the inner wall of the shell (31), the other end of the guide rod (45) penetrates through the guide hole (46), a first inclined surface (48) is formed in the screw sleeve (42), a second inclined surface (49) corresponding to the first inclined surface (48) is formed in the screw pipe (44), the first sealing ring (41) is arranged on the wires and abuts against the inner wall of the wires, the second sealing ring (47) is fixed to the inner wall of the screw pipe (44), and the second sealing ring (47) is arranged on the wires and abuts against the outer wall of the wires.

5. The high efficiency and energy saving canned motor pump according to claim 4, characterized in that: A placing groove (5) is formed in the outer wall of the guide rod (45), an arc-shaped elastic sheet (51) is arranged in the placing groove (5), both ends of the elastic sheet (51) are fixed to the inner wall of the placing groove (5), and the middle part of the elastic sheet (51) protrudes from the placing groove (5) and abuts against the outer wall of the screw sleeve (42) when the screw sleeve (42) abuts against the inner wall of the shell (31).

6. The high efficiency and energy saving canned motor pump according to claim 3, characterized in that: A maintenance hole (7) is formed in the upper surface of the shell (31), and a rubber plug (8) is embedded in the maintenance hole (7).

7. The high efficiency and energy saving canned motor pump according to claim 6, characterized in that: The rubber plug (8) comprises a sealing plate (81), a sealing ring (82) and a plug column (83), the sealing plate (81) is fixed on the upper surface of the plug column (83) and used for abutting against the outer wall of the shell (31), the access hole (7) is located in the inside of the sealing plate (81), and the sealing ring (82) is fixed on the outer wall of the plug column (83) and abuts against the inner wall of the access hole (7).

8. The high efficiency and energy saving canned motor pump according to claim 3, characterized in that: The cover plate (32) is rotationally connected with an adjusting knob (6) used for adjusting the controller body (33).

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