Submerged pump with anti-freezing structure
By introducing antifreeze components and temperature feedback system into the under-liquid pump, the problem of freezing of the under-liquid pump at low temperatures is solved, and antifreeze and flow monitoring are achieved to ensure the normal operation of the equipment.
Patent Information
- Application Number
- CN202422282122.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The existing under-liquid pumps are prone to freezing under low temperature conditions in winter, resulting in damage to the impeller and burning the motor, and lack the bottom anti-freezing function.
An antifreeze structure under-liquid pump is designed, including antifreeze components and temperature feedback system, which uses graphite thermal disks and electric heating wire to keep the bottom of the pump body freezing, and temperature and flow monitoring are performed through infrared temperature measurement sensors and flow sensors.
It realizes the anti-freezing function at the bottom of the pump body under low temperature conditions, and also has temperature feedback and flow monitoring capabilities, avoids freezing and damage, and promptly detects flow abnormalities.
Smart Images
Figure CN223177752U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vertical pumps, in particular to a submerged pump with an anti-freezing structure. Background Art
[0002] A submerged pump is a vertical pump that immerses impellers, pump bodies and other flow-through components in the material to be transported and is connected to the motor by a shaft, and is suitable for transporting various corrosive materials such as strong acids, alkalis, salts, and strong oxidants with any concentration.
[0003] Most of the common submerged pumps on the current market are similar in structure, with the motor, extended shaft, pump body, and output pipe as the main components. The pump body is below the liquid level. Under low temperature conditions in winter, the freezing of the liquid medium will cause the pump body to be synchronously frozen, with a high probability of impeller damage, and it is also easy to cause the motor to burn out, and it does not have the function of bottom anti-freezing.
[0004] Now, a new type of submerged pump with an anti-freezing structure is proposed to solve the above problems. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a submerged pump with an anti-freezing structure to solve the problem of not having the function of bottom anti-freezing proposed in the above background art.
[0006] To achieve the above purpose, the utility model provides the following technical solution: A submerged pump with an anti-freezing structure, including a bearing housing, a driving motor is installed at the top of the bearing housing, an extended shaft is fixedly connected to the bottom of the bearing housing, a supporting plate is welded to the bottom of the outside of the bearing housing, a pump body is fixedly connected to the bottom of the extended shaft, a water outlet pipe is fixedly connected to the left side of the pump body, a controller is installed on the right side of the top of the supporting plate, and an anti-freezing component for preventing the impeller from freezing is arranged at the bottom of the pump body.
[0007] The anti-freezing component includes a chassis, the chassis is arranged below the pump body, a water inlet bell mouth is fixedly connected to the top of the chassis, a central water inlet is arranged at the middle position of the chassis, a graphite heat conduction plate is fixedly connected to the inside of the chassis, a variety of electric heating wires are inserted through the inside of the graphite heat conduction plate, a circuit board is fixedly connected to the right side inside the chassis, a wiring head is arranged on the right side of the top of the circuit board, and a first wire is movably connected between the top of the wiring head and the right side of the controller.
[0008] Preferably, water inlet slots are respectively opened at the front, rear, left and right ends of the water inlet bell mouth, and the central water inlet penetrates through the upper and lower surfaces of the chassis.
[0009] Preferably, the top of the water inlet bell mouth is connected to the bottom of the pump body, and the top of the graphite heat conduction plate is attached to the top inside the chassis.
[0010] Preferably, the heating wire is connected to the circuit board. The outer surface of the first wire is sprayed with an anti-corrosion coating. The heating wire, the circuit board, the connection terminal, the first wire, and the controller are electrically connected.
[0011] Preferably, a fixing bracket is provided on the right side of the front end of the supporting plate. A connecting bracket is welded to the rear end of the fixing bracket. An infrared temperature sensor is fixedly connected to the front end of the fixing bracket. A second wire is provided between the rear end of the infrared temperature sensor and the right side of the controller. A three-color alarm lamp is installed on the top end of the controller.
[0012] Preferably, the bottom end of the connecting bracket is connected to the top end of the supporting plate. The infrared temperature sensor, the second wire, the three-color alarm lamp, and the controller are electrically connected.
[0013] Preferably, a sensor mounting seat is welded to the top of the right side of the water outlet pipe. A flow sensor is fixedly connected to the right side of the sensor mounting seat. A third wire is provided between the bottom end of the flow sensor and the left side of the controller.
[0014] Preferably, the left side of the flow sensor penetrates through the inside of the sensor mounting seat and extends into the inside of the water outlet pipe. The controller, the flow sensor, and the third wire are electrically connected.
[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The submersible pump with an anti-freezing structure not only realizes the function of bottom anti-freezing, but also realizes the function of temperature feedback and the function of flow monitoring.
[0016] (1) By providing an inlet bellmouth, a chassis, a central water inlet, a graphite heat conduction plate, a heating wire, a circuit board, a connection terminal, and a first wire, during use, the drive motor drives the impeller inside the pump body to rotate at a high speed through an extension shaft, sucks the liquid medium into the pump body and discharges it from the water outlet pipe. In winter with low temperature weather, the heating wire inside the chassis is turned on. The heating wire generates heat when electrified. The graphite heat conduction plate evenly diffuses the heat to the surface of the chassis. When pumping the liquid, the liquid near the inlet bellmouth will not freeze after being heated, and the warm liquid enters the pump body to prevent it from being frozen inside. The circuit board is connected to the controller through the connection terminal and the first wire, which is convenient for controlling the opening and closing of the heating wire, realizing the function of bottom anti-freezing.
[0017] (2) By providing a fixing bracket, a connecting bracket, an infrared temperature sensor, a second wire, and a three-color alarm lamp, during use, the supporting plate is higher than the liquid level. The fixing bracket is connected to the supporting plate through the connecting bracket. The infrared temperature sensor at the front end of the fixing bracket keeps monitoring the temperature of the liquid level below and feeds back the temperature information to the controller. The three-color alarm lamp lights up the corresponding light according to the temperature range, which is convenient for the staff to judge, realizing the function of temperature feedback.
[0018] (3) By providing a sensor mounting base, a flow sensor and a third wire, when in use, the pump body sucks in liquid and discharges it from the outlet pipe. The flow sensor on the sensor mounting base keeps monitoring the liquid flow inside the outlet pipe and feeds back the data to the controller through the third wire. When the flow is too low, the three-color alarm light flashes simultaneously, and the inspection personnel can find and check the pump in time, thus realizing the flow monitoring function. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a front view structural diagram of the utility model;
[0020] Figure 2 This is an enlarged schematic diagram of the cross-section of the chassis of the present invention;
[0021] Figure 3 For the utility model Figure 1 A schematic diagram of the enlarged structure of the local section at point A in the middle;
[0022] Figure 4 This is a schematic diagram of the enlarged side view of the sensor mounting base of the present invention.
[0023] In the figure: 1. Bearing seat; 2. Drive motor; 3. Support plate; 4. Extension shaft; 5. Pump body; 6. Water outlet pipe; 7. Water inlet bell; 8. Chassis; 9. Central water inlet; 10. Graphite heat conducting plate; 11. Heating wire; 12. Circuit board; 13. Terminal head; 14. First wire; 15. Fixing bracket; 16. Connecting bracket; 17. Infrared temperature sensor; 18. Second wire; 19. Three-color alarm light; 20. Controller; 21. Sensor mounting bracket; 22. Flow sensor; 23. Third wire. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0025] Example 1: Please refer to Figures 1-4 A submersible pump with an antifreeze structure includes a bearing seat 1, a driving motor 2 is installed on the top of the bearing seat 1, an extension shaft 4 is fixedly connected to the bottom end of the bearing seat 1, a supporting plate 3 is welded to the bottom end of the outside of the bearing seat 1, a pump body 5 is fixedly connected to the bottom end of the extension shaft 4, a water outlet pipe 6 is fixedly connected to the left side of the pump body 5, a controller 20 is installed on the right side of the top of the supporting plate 3, and an antifreeze component is provided at the bottom end of the pump body 5 to prevent the impeller from freezing;
[0026] Please refer to Figures 1-4 , a submersible pump with an anti-freezing structure further includes an anti-freezing component. The anti-freezing component includes a chassis 8, which is arranged below the pump body 5. The top end of the chassis 8 is fixedly connected with a water inlet bell mouth 7. A central water inlet 9 is arranged at the middle position of the chassis 8. A graphite heat conducting plate 10 is fixedly connected inside the chassis 8. A variety of heating wires 11 are inserted inside the graphite heat conducting plate 10. A circuit board 12 is fixedly connected to the right side inside the chassis 8. A wiring head 13 is arranged on the right side of the top of the circuit board 12. A first wire 14 is movably connected between the top end of the wiring head 13 and the right side of the controller 20;
[0027] The front, rear, left and right ends of the water inlet bell mouth 7 are respectively provided with water inlet slots. The central water inlet 9 penetrates through the upper and lower surfaces of the chassis 8. The top end of the water inlet bell mouth 7 is connected to the bottom end of the pump body 5. The top end of the graphite heat conducting plate 10 is attached to the top end inside the chassis 8. The heating wires 11 and the circuit board 12 are connected. The first wire 14 is sprayed with an anti-corrosion coating. The heating wires 11, the circuit board 12, the wiring head 13, the first wire 14 and the controller 20 are electrically connected, which can prevent the bottom of the pump from freezing;
[0028] Specifically, as shown in Figure 1 and Figure 2 , when the heating wires 11 inside the chassis 8 are turned on, the heating wires 11 are electrified and generate heat. The graphite heat conducting plate 10 evenly diffuses the heat to the surface of the chassis 8. When pumping liquid, the liquid near the water inlet bell mouth 7 will not freeze after being heated. The warm liquid enters the pump body 5, preventing it from freezing inside. The circuit board 12 is connected to the controller 20 through the wiring head 13 and the first wire 14, which is convenient for controlling the opening and closing of the heating wires 11.
[0029] Example 2: A fixing frame 15 is arranged on the right side of the front end of the supporting plate 3. A connecting frame 16 is welded to the rear end of the fixing frame 15. An infrared temperature sensor 17 is fixedly connected to the front end of the fixing frame 15. A second wire 18 is arranged between the rear end of the infrared temperature sensor 17 and the right side of the controller 20. A three-color alarm lamp 19 is installed at the top end of the controller 20. The bottom end of the connecting frame 16 is connected to the top end of the supporting plate 3. The infrared temperature sensor 17, the second wire 18, the three-color alarm lamp 19 and the controller 20 are electrically connected, which can monitor and feedback the liquid surface temperature;
[0030] Specifically, as shown in Figure 1 and Figure 4 , the fixing frame 15 is connected to the supporting plate 3 through the connecting frame 16. The infrared temperature sensor 17 at the front end of the fixing frame 15 keeps monitoring the temperature of the liquid surface below and feeds back the temperature information to the controller 20. The three-color alarm lamp 19 lights corresponding lights according to the temperature range, which is convenient for the staff to judge.
[0031] Embodiment 3: A sensor mounting seat 21 is welded to the top on the right side of the water outlet pipe 6. A flow sensor 22 is fixedly connected to the right side of the sensor mounting seat 21. A third wire 23 is arranged between the bottom end of the flow sensor 22 and the left side of the controller 20. The left side of the flow sensor 22 passes through the inside of the sensor mounting seat 21 and extends into the inside of the water outlet pipe 6. The controller 20, the flow sensor 22, and the third wire 23 are electrically connected, which can maintain the monitoring of the water outlet flow and give an early warning in time when abnormalities are found;
[0032] Specifically, as Figure 1 and Figure 3 shown, the flow sensor 22 on the sensor mounting seat 21 maintains the monitoring of the liquid flow inside the water outlet pipe 6, and feeds back the data to the controller 20 through the third wire 23. When the flow rate is too low, the three-color alarm light 19 flashes simultaneously in three colors, and the inspection personnel can find and check the pump in time.
[0033] Working principle: When the present utility model is in use, first, the driving motor 2 drives the impeller inside the pump body 5 to rotate at a high speed through the extension shaft 4, sucks the liquid medium into the pump body 5 and discharges it from the water outlet pipe 6. In winter with low temperature weather, the heating wire 11 inside the chassis 8 is turned on. The heating wire 11 generates heat when electrified, and the graphite heat conducting plate 10 evenly diffuses the heat to the surface of the chassis 8. When pumping liquid, the liquid near the water inlet bell mouth 7 will not freeze after being heated, and the warm liquid enters the pump body 5 to prevent it from being frozen inside. The circuit board 12 is connected to the controller 20 through the wiring head 13 and the first wire 14, which is convenient for controlling the opening and closing of the heating wire 11. The supporting plate 3 is higher than the liquid level, the fixing frame 15 is connected to the supporting plate 3 through the connecting frame 16, and the infrared temperature sensor 17 at the front end of the fixing frame 15 maintains the temperature monitoring of the liquid level below and feeds back the temperature information to the controller 20. The three-color alarm light 19 lights corresponding lights according to the temperature range, which is convenient for the staff to judge. The pump body 5 sucks the liquid and discharges it from the water outlet pipe 6. The flow sensor 22 on the sensor mounting seat 21 maintains the monitoring of the liquid flow inside the water outlet pipe 6, and feeds back the data to the controller 20 through the third wire 23. When the flow rate is too low, the three-color alarm light 19 flashes simultaneously in three colors, and the inspection personnel can find and check the pump in time.
[0034] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.
Claims
1. A submersible pump with an anti-freezing structure, comprising a bearing housing (1), characterized in that: A driving motor (2) is installed at the top end of the bearing housing (1). A lengthened shaft (4) is fixedly connected to the bottom end of the bearing housing (1). A supporting plate (3) is welded to the bottom end of the outer part of the bearing housing (1). A pump body (5) is fixedly connected to the bottom end of the lengthened shaft (4). A water outlet pipe (6) is fixedly connected to the left side of the pump body (5). A controller (20) is installed on the right side of the top of the supporting plate (3). An anti-freezing component for preventing the impeller from freezing is arranged at the bottom end of the pump body (5). The anti-freezing component includes a chassis (8). The chassis (8) is arranged below the pump body (5). A water inlet bell mouth (7) is fixedly connected to the top end of the chassis (8). A central water inlet (9) is arranged at the middle position of the chassis (8). A graphite heat conduction plate (10) is fixedly connected to the inside of the chassis (8). A variety of electric heating wires (11) are inserted into the graphite heat conduction plate (10). A circuit board (12) is fixedly connected to the right side of the inside of the chassis (8). A wiring terminal (13) is arranged on the right side of the top of the circuit board (12). A first wire (14) is movably connected between the top end of the wiring terminal (13) and the right side of the controller (20).
2. The submersible pump with an anti-freezing structure according to claim 1, characterized in that: Water inlet slots are respectively arranged at the front, rear, left and right ends of the water inlet bell mouth (7). The central water inlet (9) penetrates through the upper and lower surfaces of the chassis (8).
3. The submerged pump with an anti-freezing structure according to claim 1, characterized in that: The top end of the water inlet bell mouth (7) is connected to the bottom end of the pump body (5). The top end of the graphite heat conduction plate (10) is attached to the top end of the inside of the chassis (8).
4. The submersible pump with an anti-freezing structure according to claim 1, wherein: The electric heating wires (11) are connected to the circuit board (12). An anti-corrosion coating is sprayed on the outside of the first wire (14). The electric heating wires (11), the circuit board (12), the wiring terminal (13), the first wire (14) and the controller (20) are electrically connected.
5. The submersible pump with an anti-freezing structure according to claim 1, characterized in that: A fixing frame (15) is arranged on the right side of the front end of the supporting plate (3). A connecting frame (16) is welded to the rear end of the fixing frame (15). An infrared temperature sensor (17) is fixedly connected to the front end of the fixing frame (15). A second wire (18) is arranged between the rear end of the infrared temperature sensor (17) and the right side of the controller (20). A three-color alarm lamp (19) is installed at the top end of the controller (20).
6. The submerged pump with an anti-freezing structure according to claim 5, wherein: The bottom end of the connecting frame (16) is connected to the top end of the supporting plate (3). The infrared temperature sensor (17), the second wire (18), the three-color alarm lamp (19) and the controller (20) are electrically connected.
7. The submersible pump with an anti-freezing structure according to claim 1, characterized in that: A sensor mounting seat (21) is welded to the top of the right side of the water outlet pipe (6). A flow sensor (22) is fixedly connected to the right side of the sensor mounting seat (21). A third wire (23) is arranged between the bottom end of the flow sensor (22) and the left side of the controller (20).
8. The submersible pump with an anti-freezing structure according to claim 7, characterized in that: The left side of the flow sensor (22) penetrates through the inside of the sensor mounting seat (21) and extends into the inside of the water outlet pipe (6). The controller (20), the flow sensor (22) and the third wire (23) are electrically connected.