Circulating cooling structure of submersible sewage pump

Abstract

The utility model discloses a circulating cooling structure of a submersible sewage pump, which comprises a main body mechanism, the main body mechanism comprises a motor main body, a pump machine main body installed at the bottom end of the motor main body, a first water drainage pipe installed on one side of the pump machine main body, heat dissipation fins arranged on the outer side of the motor main body in an annular array mode, an outer pipe body installed on one side of the motor main body, a flow guide shell fixed to the bottom end of the outer pipe body and an air blowing piece fixed to the inner wall of the outer pipe body. The motor main body is used for driving an impeller in the pump main body to rotate so as to realize water flow pumping, an exhaust hole is formed in the top end of the motor main body and is used for exhausting hot air in an inner cavity of the motor main body, and the exhaust hole is used for exhausting the hot air in the inner cavity of the motor main body; the heat dissipation fins are arranged on the outer side of the motor body in an annular array, and the circulating cooling structure of the submersible sewage pump has the advantages of being efficient in heat dissipation and high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to submersible pump technical field, concretely is a submersible sewage pump circulation cooling structure. BACKGROUND

[0002] Submersible pump is used for deep well, river, reservoir, pool and water channel etc. water lifting equipment, when using, the whole unit is submerged in water and works, and water is lifted to the ground or other water storage equipment, and it is the indispensable important equipment in water lifting engineering. Submersible pump generally includes pump body, motor, impeller, and the water inlet and water outlet are arranged on the pump body, before starting the pump, the suction pipe and the pump must be full of liquid, after starting the pump, the motor starts to drive the impeller to rotate, and the impeller rotates at high speed under the action of centrifugal force and gas-liquid pressure, and then the liquid flows into the pump through the water inlet, and then is discharged from the water outlet.

[0003] The existing submersible pump mainly has the following problems in the process of using: the submersible pump is easy to overheat under long-time operation, the existing submersible pump mainly relies on immersion in water for heat dissipation, the heat dissipation efficiency is low, and the internal heat is not easy to discharge, therefore, there is room for improvement. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving one of the technical problems in the prior art or related art.

[0005] Therefore, the utility model adopts the technical scheme: a submersible sewage pump circulation cooling structure, comprising: a main body mechanism, characterized by the main body mechanism comprising a motor main body, a pump main body installed at the bottom end of the motor main body, a first drain pipe installed at one side of the pump main body, a heat dissipation fin arranged in an annular array outside the motor main body, an outer pipe body installed at one side of the motor main body, a flow guide shell fixed at the bottom end of the outer pipe body, a blowing piece fixed on the inner wall of the outer pipe body, a sleeve set outside the heat dissipation fin and communicating with the first drain pipe at the bottom, and an output piece arranged at the top of the sleeve.

[0006] The heat dissipation fin is internally provided with a plurality of straight flow channels, one end of the straight flow channel communicates with the inside of the outer pipe body, and a horizontal flow channel is arranged at the bottom of the straight flow channel and communicates with the inner cavity of the motor main body.

[0007] In a preferred example, the blowing piece can be further configured to include an inner pipe body fixed on the inner wall of the outer pipe body and a high-speed fan installed on the inner wall of the inner pipe body.

[0008] In a preferred example, the output piece can be further configured to include an annular pipe arranged at the top of the sleeve and communicating with the remaining sleeve inner cavity, and a second drain pipe installed at one side of the annular pipe.

[0009] In a preferred embodiment, the present invention can be further configured such that an exhaust vent is provided at the top of the motor body.

[0010] In a preferred embodiment, the present invention can be further configured such that: a water inlet is provided at the bottom of the pump body, and a filter screen is installed at the bottom of the pump body.

[0011] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0012] 1. In this utility model, an outer tube is provided on one side of the motor body, and a guide shell is provided at the end of the outer tube. A blower is provided inside the outer tube. In addition, a straight flow channel and a transverse flow channel are provided inside the heat dissipation fins on the motor body. One end of the straight flow channel is connected to the inner cavity of the guide shell, and the other end is connected to the transverse flow channel. The transverse flow channel is connected to the inside of the motor body. With the above configuration, when the motor body is running, the high-speed fan starts to draw out the hot air inside the motor body and blow it away from the guide shell. The hot air enters the straight flow channel in the heat dissipation fins under the action of the guide shell and exchanges heat with the water in the outside through the heat dissipation fins. The cooled air returns to the inner cavity of the motor body through the transverse flow channel to form a circulation. This can efficiently and quickly dissipate the heat inside the motor body, avoid the accumulation of heat inside the motor body and the occurrence of overheating, and improve the heat dissipation performance of the submersible pump.

[0013] 2. In this utility model, a sleeve is provided on the outer side of the heat dissipation fins on the motor body. The top end of the sleeve is fixedly connected to the outer tube body, and an output component is provided on the sleeve. The first drain pipe of the pump body is connected to the bottom end of the sleeve. Through the above arrangement, when the pump body is running, the water flow sent out at high speed through the first drain pipe enters the sleeve and flows upward from the inner cavity of the sleeve, accelerating the water flow speed near the heat dissipation fins, so that the water flow can quickly remove the heat on the heat dissipation fins. Finally, the water flow is sent out through the output component, which can further improve the heat dissipation efficiency of the heat dissipation fins. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 This is an exploded view of the structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the heat dissipation fins of this utility model;

[0018] Figure 5 This is a partial structural cross-sectional schematic diagram of the present invention.

[0019] Figure label:

[0020] 100. Main body; 110. Motor body; 111. Exhaust vent; 120. Pump body; 121. Water inlet; 122. Filter screen; 130. First drain pipe; 140. Heat dissipation fins; 141. Vertical flow channel; 142. Horizontal flow channel; 150. Outer tube; 160. Guide shell; 170. Blower; 171. Inner tube; 172. High-speed fan; 180. Sleeve; 190. Output component; 191. Annular pipe; 192. Second drain pipe. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0022] Some embodiments of this utility model are described below with reference to the accompanying drawings. Example 1

[0023] Combination Figures 1-5 As shown, this embodiment provides a circulating cooling structure for a submersible sewage pump, including: a main body 100, characterized in that...

[0024] The main structure 100 includes a motor body 110, a pump body 120 installed at the bottom of the motor body 110, a first drain pipe 130 installed on one side of the pump body 120, heat dissipation fins 140 arranged in a ring array on the outside of the motor body 110, an outer tube 150 installed on one side of the motor body 110, a guide shell 160 fixed at the bottom of the outer tube 150, a blower 170 fixed on the inner wall of the outer tube 150, a sleeve 180 sleeved on the outside of the heat dissipation fins 140 and connected to the first drain pipe 130 at its bottom, and an output component 190 installed on the top of the sleeve 180.

[0025] The motor body 110 is used to drive the impeller in the pump body 120 to rotate, thereby realizing the pumping of water. The top of the motor body 110 is provided with an exhaust hole 111 to exhaust the hot air inside the motor body 110. The heat dissipation fins 140 are arranged in a ring array on the outside of the motor body 110, which can effectively increase the heat dissipation area of ​​the motor body 110 and improve the heat dissipation efficiency of the motor body 110.

[0026] The bottom end of the pump body 120 is provided with a water inlet 121 for water intake. A filter screen 122 is provided on the outside of the water inlet 121 to filter impurities in the water and prevent them from entering the inner cavity of the pump body 120 and causing damage.

[0027] The outer tube 150 is used to install the air guide shell 160 and the blower 170. The air guide shell 160 is used to reverse the flow of hot air blown out by the blower 170. The blower 170 is used to extract hot air from the inner cavity of the motor body 110. It includes an inner tube 171 fixed to the inner wall of the outer tube 150 and a high-speed fan 172 installed on the inner wall of the inner tube 171. An annular space is provided between the inner tube 171 and the outer tube 150. Multiple straight flow channels 141 are provided inside the heat dissipation fins 140. One end of the straight flow channel 141 is connected to the annular space. A transverse flow channel 1 is provided at the bottom of the straight flow channel 141. 42 connects to the inner cavity of the motor body 110. With this setting, when the high-speed fan 172 rotates, it draws out the hot air from the inner cavity of the motor body 110 and blows it into the guide shell 160. Under the action of the guide shell 160, the hot air enters between the outer tube 150 and the inner tube 171, and then enters the straight flow channel 141 in the heat dissipation fins 140. The hot air exchanges heat with the water flow in the heat dissipation fins 140 to achieve cooling. The cooled air then returns to the inner cavity of the motor body 110 through the transverse flow channel 142, realizing the circulation of air inside the motor body 110 and preventing heat accumulation inside the motor body 110.

[0028] The sleeve 180 is fitted on the outside of the heat dissipation fin 140, and its inner wall is tightly attached to the end of the heat dissipation fin 140. The first drain pipe 130 is connected to the bottom end of the sleeve 180. With this arrangement, the water pressurized by the pump can be pumped into the inner cavity of the sleeve 180 through the first drain pipe 130, so that the water flows at high speed on both sides of the heat dissipation fin 140, quickly removing the heat on the heat dissipation fin 140 and improving the heat dissipation efficiency.

[0029] The output component 190 is used to send out the water flow inside the sleeve 180. It includes an annular pipe 191 connected to the inner cavity of the other sleeves 180 at the top of the sleeve 180 and a second drain pipe 192 installed on one side of the annular pipe 191. The annular pipe 191 is used to discharge the water flow inside the sleeve 180, and the second drain pipe 192 is used to send out the water flow after the pump body 120 is pressurized, so as to realize the pumping of water.

[0030] The working principle and use flow of the utility model are: when the motor main body 110 drives the pump main body 120 to run, the high-speed fan 172 starts, the hot air in the motor main body 110 cavity is extracted through the exhaust hole 111 and is blown to the flow guide shell 160, the hot air enters between the outer pipe body 150 and the inner pipe body 171 under the action of the flow guide shell 160, then enters the straight flow channel 141 in the heat dissipation fin 140, at this time, the pump main body 120 pressurizes the water through the first drain pipe 130 and sends it into the sleeve 180 cavity, after the high-speed water flow enters the sleeve 180 cavity, it flows from bottom to top on both sides of the heat dissipation fin 140, the hot air passes through the straight flow channel 141, the heat is transferred to the heat dissipation fin 140, then is quickly taken away by the flowing water flow, the cooling of the hot air is completed, then the hot air is sent back to the motor main body 110 cavity through the horizontal flow channel 142, forms a cycle, and the water flow in the sleeve 180 enters the annular pipe 191, then is sent out through the second drain pipe 192, realizes the pumping of the water flow.

[0031] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, the scope of the utility model is defined by the claims and its equivalents.

Claims

1. A circulating cooling structure for a submersible sewage pump, comprising: The main body (100) is characterized in that it includes a motor body (110), a pump body (120) installed at the bottom of the motor body (110), a first drain pipe (130) installed on one side of the pump body (120), heat dissipation fins (140) arranged in a ring array on the outside of the motor body (110), an outer tube (150) installed on one side of the motor body (110), a flow guide shell (160) fixed at the bottom of the outer tube (150), a blower (170) fixed on the inner wall of the outer tube (150), a sleeve (180) sleeved on the outside of the heat dissipation fins (140) and connected to the first drain pipe (130) at the bottom, and an output component (190) arranged on the top of the sleeve (180). The heat dissipation fins (140) are provided with multiple straight flow channels (141) inside. One end of the straight flow channel (141) is connected to the inside of the outer tube body (150). A transverse flow channel (142) is provided at the bottom of the straight flow channel (141) to connect to the inner cavity of the motor body (110).

2. The circulating cooling structure for a submersible sewage pump according to claim 1, characterized in that, The blower (170) includes an inner tube (171) fixed to the inner wall of the outer tube (150) and a high-speed fan (172) installed on the inner wall of the inner tube (171).

3. The circulating cooling structure for a submersible sewage pump according to claim 1, characterized in that, The output component (190) includes an annular pipe (191) disposed on the top of the sleeve (180) and communicating with the inner cavity of the remaining sleeve (180), and a second drain pipe (192) installed on one side of the annular pipe (191).

4. The circulating cooling structure for a submersible sewage pump according to claim 1, characterized in that, The top of the motor body (110) is provided with an exhaust hole (111).

5. The circulating cooling structure for a submersible sewage pump according to claim 1, characterized in that, The pump body (120) is provided with a water inlet (121) at the bottom end, and a filter screen (122) is installed at the bottom end of the pump body (120).

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