Variable frequency energy-saving system of electric feed water pump

Abstract

The application discloses a kind of electric water supply pump variable frequency energy-saving system, including water pump shell, the water pump shell is fixedly installed with partition plate, servo motor, the drive end of the servo motor is fixedly installed with drive shaft, and drive shaft is installed with multiple drive impellers by linkage mechanism, and multiple drive impellers are all located in the upper portion of partition plate, the water pump shell is fixedly installed with inlet pipe, outlet pipe, and barrier mechanism is installed in inlet pipe, outlet pipe. Advantage lies in: the heat generated when the motor in electric water supply pump works can be utilized and converted, and the temperature of motor is taken away by the flow of water in the process of transmitting water volume, the cooling effect is better, and it is more energy-saving, and residual water volume in water supply pump can be excluded, to avoid water supply pump from being damaged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water supply pumps, in particular to a variable frequency energy-saving system of an electric water supply pump. BACKGROUND

[0002] The electric water supply pump refers to a pump body driven by an electric motor to rotate an impeller for water flow transmission, and the existing electric water supply pump still has the following deficiencies during work:

[0003] 1. The electric motor in the existing electric water supply pump can generate a lot of heat accumulation and cannot be dissipated after long-term work, which is easy to cause the motor to overheat and damage, so a dedicated heat dissipation device is usually used to dissipate heat for the motor, which not only has high cost, but also has high power consumption and wastes energy;

[0004] 2. The existing electric water supply pump has a lot of residual transmission water accumulated inside after work, which not only increases the weight of the water supply pump and is not easy to transport, but also causes the water supply pump to be corroded due to long-term accumulation of residual water, which has certain limitations;

[0005] Therefore, it is urgent to design a variable frequency energy-saving system of an electric water supply pump to solve the above problems.

[0006] The information disclosed in this BACKGROUND section is only intended to increase an understanding of the general background of the application and is not intended to be a recognition or any form of suggestion that this information forms prior art that is already known to those of ordinary skill in the art. SUMMARY

[0007] The present application aims to solve the problems in the prior art and provides a variable frequency energy-saving system of an electric water supply pump.

[0008] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0009] A variable frequency energy-saving system of an electric water supply pump, comprising a water pump shell, a partition plate and a servo motor are fixedly installed in the water pump shell, a driving shaft is fixedly installed on the driving end of the servo motor, a plurality of driving impellers are installed in the driving shaft through a linkage mechanism, and the plurality of driving impellers are located on the upper part of the partition plate, a water inlet pipe and a water outlet pipe are fixedly installed on the water pump shell, and a blocking mechanism is installed in the water inlet pipe and the water outlet pipe;

[0010] A drain pipe is fixedly installed on the partition plate, a spiral condenser pipe is fixedly installed in the water pump shell, and the inner wall of the spiral condenser pipe cooperates with the servo motor, a water diversion pipe is fixedly installed between the water inlet end of the spiral condenser pipe and the drain pipe, a backwater pipe is fixedly installed between the water outlet end of the spiral condenser pipe and the partition plate, and a communication mechanism is installed between the servo motor and the drain pipe;

[0011] The transmission shaft is rotatably installed between the partition plate and the water pump shell, and the transmission mechanism is installed between the transmission shaft and the driving shaft, the sliding mechanism is installed between the partition plate and the water pump shell, the spacer plate is fixedly installed between the partition plate and the water pump shell, the reciprocating spring rod is fixedly installed between the spacer plate and the push plate, the water guide mechanism is installed between the partition plate and the water pump shell, the incomplete gear is fixedly installed on the transmission shaft, and the reciprocating gear rod matched with the incomplete gear is fixedly installed on the push plate.

[0012] In the electric water supply pump variable frequency energy-saving system, the linkage mechanism comprises a one-way bearing one fixedly installed on the driving shaft, and the linkage shaft is fixedly installed on the one-way bearing one, and a plurality of driving impellers are fixedly installed on the linkage shaft.

[0013] In the electric water supply pump variable frequency energy-saving system, the blocking mechanism comprises a fixed disc fixedly installed in the water inlet pipe, a special-shaped communication hole is formed in the fixed disc, a blocking disc is slidably installed in the special-shaped communication hole, and a plurality of extrusion springs are fixedly installed between the blocking disc and the inner wall of the special-shaped communication hole.

[0014] In the electric water supply pump variable frequency energy-saving system, the filter screen plate is fixedly installed in the water inlet pipe.

[0015] In the electric water supply pump variable frequency energy-saving system, the communication mechanism comprises a heat-conducting frame fixedly installed on the servo motor, the memory alloy rod is fixedly installed on the heat-conducting frame, the water blocking disc is slidably installed in the water outlet pipe, and the water blocking disc is fixedly installed on the memory alloy rod.

[0016] In the electric water supply pump variable frequency energy-saving system, the transmission mechanism comprises a one-way bearing two fixedly installed on the driving shaft, the driving wheel is fixedly installed on the one-way bearing two, the driven wheel is fixedly installed on the transmission shaft, and the transmission belt is fixedly sleeved between the driving wheel and the driven wheel.

[0017] In the electric water supply pump variable frequency energy-saving system, the sliding mechanism comprises two trapezoidal sliding blocks fixedly installed on the push plate, two trapezoidal sliding grooves are formed in the water pump shell and the partition plate, and the two trapezoidal sliding blocks are respectively clamped and installed in the two trapezoidal sliding grooves.

[0018] In the electric water supply pump variable frequency energy-saving system, the water guide mechanism comprises a water suction pipe fixedly installed on the partition plate, a water discharge pipe is fixedly installed in the water pump shell, and a one-way valve is arranged in the water suction pipe and the water discharge pipe.

[0019] Compared with the prior art, the electric water supply pump variable frequency energy-saving system has the advantages that:

[0020] 1. By setting the driving impeller, when the servo motor starts to rotate forward, it will drive the linkage shaft and multiple driving impellers to rotate with the cooperation of the one-way bearing. The rotation of the multiple driving impellers will suck the transmission water through the water inlet pipe and discharge it through the water outlet pipe, completing the conduction of the transmission water.

[0021] 2. By setting up a memory alloy rod, when the servo motor generates heat during operation, the heat energy will be conducted to the memory alloy rod through the heat conduction frame. When the memory alloy rod absorbs heat and reaches the deformation threshold, it will shrink and deform, thereby pulling the water blocking plate to move away from the sewer pipe. At this time, the sewer pipe will be connected.

[0022] 3. By setting up a spiral condenser, after the sewer pipe is connected, part of the transmission water on the upper part of the partition plate will be conducted to the spiral condenser through the sewer pipe and the water pipe, and will return to the upper part of the partition plate through the return pipe. Since the spiral condenser is squeezed and fitted with the outside of the servo motor, the heat energy in the servo motor can be taken away during the flow of transmission water, thereby achieving cooling of the servo motor.

[0023] 4. By setting up a transmission belt, when the water pump finishes working, the servo motor will start to reverse and drive the driving wheel to rotate with the cooperation of the one-way bearing 2, thereby driving the transmission shaft to rotate with the cooperation of the driven wheel and the transmission belt.

[0024] 5. By setting up a push plate, the rotation of the transmission shaft will drive the incomplete gear to rotate back and forth, that is, it will intermittently contact and engage with the reciprocating gear rod, and under the cooperation of the reciprocating spring rod, it will drive the push plate to move back and forth between the partition plate and the water pump housing.

[0025] 6. By setting up a suction pipe and a drainage pipe, when the sliding plate moves to the left, the residual water on the upper part of the partition plate in the water pump housing will be sucked down through the suction pipe. When the sliding plate moves to the right, the sucked water will be pressed out through the drainage pipe. Repeat the above operation to remove the residual water in the water pump housing to avoid its accumulation.

[0026] To sum up, the present invention can utilize and convert the heat generated by the motor in the electric water pump when it is working, and use the flow of water to take away the temperature of the motor during the water transmission process. It has a better cooling effect and is more energy-saving. It can also remove the residual water in the water pump to avoid damage to the water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0028] Figure 1 This is a structural diagram of a variable frequency energy-saving system for electric water pumps proposed by the present invention;

[0029] Figure 2 for Figure 1Enlarged view of the connection structure between the middle water inlet pipe and its upper part;

[0030] Figure 3 For Figure 1 Enlarged view of the node in the middle A part;

[0031] Figure 4 For Figure 1 Enlarged view of the connection structure between the water pump shell, the partition plate and the part therebetween;

[0032] Figure 5 For Figure 4 Enlarged view of the node in the middle B part.

[0033] In the figure: 1 water pump shell, 2 water inlet pipe, 3 servo motor, 4 one-way bearing I, 5 linkage shaft, 6 drive impeller, 7 partition plate, 8 drain pipe, 9 memory alloy rod, 10 water guide pipe, 11 backwater pipe, 12 push plate, 13 water suction pipe, 14 drain pipe, 15 heat conducting frame, 16 drive shaft, 17 one-way bearing II, 18 driving wheel, 19 transmission belt, 20 reciprocating spring rod, 21 water outlet pipe, 22 driven wheel, 23 filter screen plate, 24 fixed disc, 25 special-shaped communication hole, 26 plugging disc, 27 extrusion spring, 28 water blocking disc, 29 spacer plate, 30 transmission shaft, 31 incomplete gear, 32 reciprocating toothed rod. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0036] Referring to Figures 1-2 An electric water supply pump variable frequency energy-saving system, comprising a water pump shell 1, a partition plate 7 and a servo motor 3 are fixedly installed in the water pump shell 1, a drive shaft 16 is fixedly installed on the driving end of the servo motor 3, a plurality of drive impellers 6 are installed in the drive shaft 16 through a linkage mechanism, and the plurality of drive impellers 6 are located on the upper part of the partition plate 7, a water inlet pipe 2 and a water outlet pipe 21 are fixedly installed on the water pump shell 1, and a blocking mechanism is installed in the water inlet pipe 2 and the water outlet pipe 21;

[0037] The above notable points are as follows:

[0038] 1、The linkage mechanism comprises a one-way bearing 4 fixedly installed on the driving shaft 16, a linkage shaft 5 fixedly installed on the one-way bearing 4, and a plurality of driving impellers 6 fixedly installed on the linkage shaft 5. When the servo motor 3 is started in the positive direction, the linkage shaft 5 and the plurality of driving impellers 6 are driven to rotate under the cooperation of the one-way bearing 4. The rotation of the plurality of driving impellers 6 causes the transmission water to be sucked in through the water inlet pipe 2 and discharged through the water outlet pipe 21, thereby completing the conduction of the transmission water.

[0039] 2、The blocking mechanism comprises a fixed disc 24 fixedly installed in the water inlet pipe 2, a special-shaped communication hole 25 formed in the fixed disc 24, a blocking disc 26 slidably installed in the special-shaped communication hole 25, and a plurality of extrusion springs 27 fixedly installed between the blocking disc 26 and the inner wall of the special-shaped communication hole 25. The blocking mechanism is used to make the transmission water flow in only one direction in the water inlet pipe 2 or the water outlet pipe 21, thereby avoiding backflow.

[0040] 3、The water inlet pipe 2 is fixedly installed with a filter screen 23 for filtering impurities to avoid blockage of the water pump housing 1.

[0041] With reference to Figure 1 , Figures 3-4 The drain pipe 8 is fixedly installed on the partition plate 7, the water pump housing 1 is fixedly installed with a spiral condenser pipe, the inner wall of the spiral condenser pipe cooperates with the servo motor 3, the water inlet end of the spiral condenser pipe is fixedly installed with a water guide pipe 10 between the drain pipe 8, the water outlet end of the spiral condenser pipe is fixedly installed with a backwater pipe 11 between the partition plate 7, and the communication mechanism is installed between the servo motor 3 and the drain pipe 8.

[0042] The above notable points are as follows:

[0043] 1、The communication mechanism comprises a heat-conducting frame 15 fixedly installed on the servo motor 3, a memory alloy rod 9 fixedly installed on the heat-conducting frame 15, and a water blocking disc 28 slidably installed in the drain pipe 8 and fixedly installed on the memory alloy rod 9. When the servo motor 3 generates heat, the heat energy is conducted to the memory alloy rod 9 through the heat-conducting frame 15. When the memory alloy rod 9 absorbs heat to reach a threshold value of deformation, it will shrink and deform, thereby pulling the water blocking disc 28 to move away from the drain pipe 8, and at this time the drain pipe 8 is connected.

[0044] 2. After the downpipe 8 is connected, part of the transmission water on the upper part of the partition plate 7 will be conducted to the spiral condenser through the downpipe 8 and the water inlet pipe 10, and will return to the upper part of the partition plate 7 through the return pipe 11. Since the spiral condenser is squeezed and fitted with the outside of the servo motor 3, the heat energy in the servo motor 3 can be taken away during the flow of transmission water, thereby cooling the servo motor 3. The servo motor 3 can be quickly cooled without using an external heat dissipation device, which is lower in cost and more energy-efficient.

[0045] Reference Figure 1 、 Figures 4-5 A transmission shaft 30 is rotatably installed between the partition plate 7 and the water pump housing 1, and a transmission mechanism is installed between the transmission shaft 30 and the drive shaft 16. A push plate 12 is installed between the partition plate 7 and the water pump housing 1 through a sliding mechanism. A partition plate 29 is fixedly installed between the partition plate 7 and the water pump housing 1, and a reciprocating spring rod 20 is fixedly installed between the partition plate 29 and the push plate 12. A water guide mechanism is installed between the partition plate 7 and the water pump housing 1, an incomplete gear 31 is fixedly installed on the transmission shaft 30, and a reciprocating gear rod 32 that cooperates with the incomplete gear 31 is fixedly installed on the push plate 12;

[0046] The following points are worth noting:

[0047] 1. The transmission mechanism includes a one-way bearing 17 fixedly mounted on the drive shaft 16, a driving wheel 18 fixedly mounted on the one-way bearing 17, a driven wheel 22 fixedly mounted on the transmission shaft 30, and a transmission belt 19 fixedly sleeved between the driving wheel 18 and the driven wheel 22. When the water pump finishes working, the servo motor 3 will start to reverse and drive the driving wheel 18 to rotate with the cooperation of the one-way bearing 17, thereby driving the transmission shaft 30 to rotate with the cooperation of the driven wheel 22 and the transmission belt 19.

[0048] 2. The sliding mechanism includes two trapezoidal sliders fixedly mounted on the push plate 12. Two trapezoidal slide grooves are provided on the water pump housing 1 and the partition plate 7, and the two trapezoidal sliders are respectively engaged and mounted in the two trapezoidal slide grooves. The push plate 12 is used to make the water pump housing 1 and the partition plate 7 slide horizontally without being offset or separated from each other.

[0049] 3. The rotation of the transmission shaft 30 will drive the incomplete gear 31 to rotate back and forth, that is, it will intermittently contact and engage with the reciprocating gear rod 32, and under the cooperation of the reciprocating spring rod 20, it will drive the push plate 12 to move back and forth between the partition plate 7 and the water pump housing 1.

[0050] 4. The water guide mechanism includes a suction pipe 13 fixedly mounted on the partition plate 7, and a drain pipe 14 fixedly mounted in the water pump housing 1. Both the suction pipe 13 and the drain pipe 14 are provided with a one-way valve. When the push plate 12 moves to the left, the residual water on the upper part of the partition plate 7 in the water pump housing 1 will be sucked down through the suction pipe 13. When the push plate 12 moves to the right, the sucked water will be pressed out through the drain pipe 14. Repeat the above operation to remove the residual water in the water pump housing 1 to prevent its accumulation.

[0051] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are common means well known to those skilled in the art.

[0052] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0053] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A variable frequency energy saving system for an electric feed water pump comprising a pump housing (1), characterized in that, The water pump shell (1) is fixedly installed with a partition plate (7) and a servo motor (3), the driving end of the servo motor (3) is fixedly installed with a driving shaft (16), a plurality of driving impellers (6) are installed in the driving shaft (16) through a linkage mechanism, and the plurality of driving impellers (6) are located on the upper portion of the partition plate (7); the water pump shell (1) is fixedly installed with an inlet pipe (2) and an outlet pipe (21), and the inlet pipe (2) and the outlet pipe (21) are both installed with a blocking mechanism. The partition plate (7) is fixedly installed with a drain pipe (8), the water pump shell (1) is fixedly installed with a spiral condenser pipe, the inner wall of the spiral condenser pipe is matched with the servo motor (3), a water diversion pipe (10) is fixedly installed between the water inlet end of the spiral condenser pipe and the drain pipe (8), a backwater pipe (11) is fixedly installed between the water outlet end of the spiral condenser pipe and the partition plate (7), and a communication mechanism is installed between the servo motor (3) and the drain pipe (8). The partition plate (7) and the water pump shell (1) are rotatably installed with a transmission shaft (30), the transmission shaft (30) and the driving shaft (16) are installed with a transmission mechanism, the partition plate (7) and the water pump shell (1) are installed with a push plate (12) through a sliding mechanism, the partition plate (7) and the water pump shell (1) are fixedly installed with a spacing plate (29), the spacing plate (29) and the push plate (12) are fixedly installed with a reciprocating spring rod (20), the partition plate (7) and the water pump shell (1) are installed with a water guide mechanism, the transmission shaft (30) is fixedly installed with an incomplete gear (31), and the push plate (12) is fixedly installed with a reciprocating tooth rod (32) matched with the incomplete gear (31). The transmission mechanism comprises a one-way bearing two (17) fixedly installed on the driving shaft (16), the one-way bearing two (17) is fixedly installed with a driving wheel (18), the transmission shaft (30) is fixedly installed with a driven wheel (22), and the driving wheel (18) and the driven wheel (22) are fixedly sleeved with a transmission belt (19).

2. The variable frequency energy saving system of an electric feed water pump according to claim 1, characterized in that, The linkage mechanism comprises a one-way bearing one (4) fixedly installed on the driving shaft (16), the one-way bearing one (4) is fixedly installed with a linkage shaft (5), and a plurality of driving impellers (6) are fixedly installed on the linkage shaft (5).

3. The variable frequency energy saving system of an electric feed water pump according to claim 1, characterized in that, The blocking mechanism comprises a fixed disc (24) fixedly installed in the inlet pipe (2), the fixed disc (24) is provided with a special-shaped communication hole (25), the special-shaped communication hole (25) is slidably installed with a blocking disc (26), and a plurality of extrusion springs (27) are fixedly installed between the blocking disc (26) and the inner wall of the special-shaped communication hole (25).

4. The variable frequency energy saving system of an electric feed water pump according to claim 1, characterized in that, The inlet pipe (2) is fixedly installed with a filter screen (23).

5. The variable frequency energy saving system of an electric feed water pump according to claim 1, characterized in that, The communication mechanism comprises a heat conduction frame (15) fixedly installed on the servo motor (3), the heat conduction frame (15) is fixedly installed with a memory alloy rod (9), the drain pipe (8) is slidably installed with a water blocking disc (28), and the water blocking disc (28) is fixedly installed on the memory alloy rod (9).

6. The variable frequency energy saving system of an electric feed water pump according to claim 1, characterized in that, The sliding mechanism comprises two trapezoidal sliding blocks fixedly installed on the push plate (12), two trapezoidal sliding grooves are formed in the water pump shell (1) and the partition plate (7), and the two trapezoidal sliding blocks are respectively clamped and installed in the two trapezoidal sliding grooves.

7. The variable frequency energy saving system of an electric feed water pump according to claim 1, characterized in that, The water guide mechanism comprises a water suction pipe (13) fixedly installed on the partition plate (7), and a drain pipe (14) fixedly installed in the water pump shell (1), and one-way valves are arranged in the water suction pipe (13) and the drain pipe (14).

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