Anti-freezing and anti-cracking heating device for vertical axial flow pump in alpine region

Abstract

The invention discloses an anti-freezing and anti-cracking heating device for a vertical axial-flow pump in an alpine region, and relates to the technical field of axial-flow pumps. A heating assembly wraps the outer wall of a water inlet pipe, a straight plate is connected to the top of the water inlet pipe, two sets of reinforcing ribs of the same structure are symmetrically installed on the tops of the left side and the right side of a straight rod, and a water outlet elbow is connected to the top of the straight plate; the heating assembly is used for preheating and heating the water inlet pipe, the water inlet pipe is adjusted to a proper position through rotation of a vertical screw rod, and in a cold season in winter, the water inlet pipe is connected with the water outlet elbow pipe, the water outlet elbow pipe is connected with an inner cavity of the water inlet pipe, the heating assembly is connected with an external wire, and the external wire is connected with a control assembly. When the interior of the axial flow pump is frozen, a control assembly can be started, an external power source is powered on, a heating rod connected with a conductive column starts to work, preheating and heating operation is carried out, and generated heat is transmitted to a water inlet pipe through a heat conduction plate to heat ice blocks in the water inlet pipe so that the ice blocks can be melted.

Description

Technical Field

[0001] The invention relates to the technical field of axial flow pumps, in particular to a vertical axial flow pump anti-freezing and anti-cracking heating device in cold regions. Background Art

[0002] A vertical axial flow pump is a common fluid conveying equipment. Its main components include impeller, pump casing, motor, shaft, bearing, etc. The impeller is located at the bottom of the pump and is directly connected to the motor shaft. The pump casing is circular. Water flows in from the bottom of the pump casing and flows out along the direction of rotation of the impeller. When working, the motor drives the impeller to rotate. The impeller does work on the water flow, so that the water flow gains energy, thereby achieving fluid lifting. The impeller blades are usually adjustable to meet the needs of different working conditions. They are mainly used in agricultural irrigation, urban drainage, industrial water, circulating water in hydropower stations and other fields.

[0003] Winter in northern my country is the high-altitude freezing season, and the working environment of water pumps is very harsh. If placed in an extremely cold environment of -40°, the equipment cannot work normally. The water pump casing is affected by physical effects such as air temperature, and the underwater part often cracks. For this reason, we have improved the above-mentioned existing technology based on actual usage. Summary of the invention

[0004] The purpose of the present invention is to provide a vertical axial flow pump anti-freezing and anti-cracking heating device for high-cold areas to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A vertical axial flow pump anti-freezing and anti-cracking heating device for high-cold areas comprises an axial flow pump structure and a heating component, wherein the axial flow pump structure comprises a water inlet pipe, the outer wall of the water inlet pipe is wrapped with a heating component, the top of the water inlet pipe is connected with a straight plate, and two groups of reinforcing ribs with the same structure are symmetrically installed on the top of the left and right sides of the straight rod, the top of the straight plate is connected with a water outlet elbow, and the water outlet elbow is connected to the inner cavity of the water inlet pipe, the heating component is connected with an external wire, and the external wire is connected with a control component, the left end of the heating component is connected with a movable sleeve, and the movable sleeve is threadedly connected to the outer wall of the vertical screw, the top of the vertical screw is connected with a rotating handle through a rotating connector, and the handle is arranged on the straight plate, the bottom of the vertical screw is connected with a supporting cross frame, and the right end of the supporting cross frame is connected to the outer wall of the water inlet pipe, the supporting cross frame is connected with a bearing assembly, and the bearing assembly is sleeved on the bottom of the vertical screw.

[0007] Furthermore: an auxiliary gear is sleeved on the top of the vertical screw rod, a driving gear is meshed on the outer wall of the auxiliary gear, an auxiliary shaft is connected to the top of the auxiliary gear, and the top of the driving gear is connected to the driving shaft, support bearings are provided on the tops of the auxiliary shaft and the driving shaft, and the top of the driving shaft passes through the straight plate and is connected to the bottom of the rotating handle.

[0008] Furthermore: a bearing installation groove matching the supporting bearing is opened on the straight plate.

[0009] Further: the heating assembly includes two groups of semicircular heating cylinders with the same structure, a semicircular groove is opened on the top of the semicircular heating cylinder, a fixing frame is arranged inside the semicircular groove, and ten groups of heating rods with the same structure are evenly arranged on the fixing frame, a sealing cover is arranged on the top of the semicircular heating cylinder, and a terminal is installed on the top of the sealing cover.

[0010] Further: a heat conducting plate is arranged on the arc-shaped inner wall of the semicircular heating cylinder, and the heat conducting plate is fitted with the outer wall of the water inlet pipe, a connecting piece adapted to the movable sleeve is arranged at one end of the semicircular heating cylinder, and a fixed plate is connected to the other end of the semicircular heating cylinder.

[0011] Furthermore: a sealing strip is arranged at the bottom of the sealing cover, and a sealing groove matched with the sealing strip is opened at the top of the semicircular heating cylinder, and conductive columns are evenly arranged at the bottom of the sealing cover, and the conductive columns are opposite to the heating rod.

[0012] Furthermore: a support block is connected to the outer wall of the movable sleeve close to the heating component, and a double-headed screw is connected to the support block.

[0013] Furthermore: a packing structure is vertically connected to the outer wall of the outlet elbow, and a coupling is connected to the top of the packing structure.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In order to cope with the problem that the axial flow pump is frozen and affects its normal operation in the cold northern regions and is prone to cracking, the present invention uses a heating component to perform preheating and heating work, heats the water inlet pipe, melts the ice inside it, and ensures the normal operation of the axial flow pump. The vertical screw is rotated to adjust it to a suitable position. When encountering the cold winter season, the inside of the axial flow pump is frozen. At this time, the control component can be turned on, the external power supply is energized, and the heating rod connected to the conductive column starts to work for preheating and heating operations. The generated heat is transmitted to the water inlet pipe through the heat conduction plate, and the ice inside the water inlet pipe is heated to melt it. The frozen axial flow pump gradually melts, and a water and ice separation layer appears, and the equipment can enter a normal working state.

[0016] 2. The vertical screw can be easily rotated by rotating the handle to drive the movable sleeve to move up and down, thereby driving the heating component to move up and down to perform all-round heating operations on the water inlet pipe 1. The two sets of adapters are connected to the support block and fixed by the double-headed screw 72, which is convenient for the disassembly and assembly of the two sets of semicircular heating cylinders and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the vertical screw connection structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the heating assembly structure of the present invention;

[0020] Figure 4 It is a rear view of the heating assembly of the present invention;

[0021] Figure 5 This is an enlarged view of the structure at location A of the present invention.

[0022] In the figure: 1. water inlet pipe; 2. straight plate; 21. reinforcing ribs; 3. water outlet elbow; 31. packing structure; 32. coupling; 4. heating component; 41. semicircular heating cylinder; 42. semicircular groove; 43. heating rod; 44. sealing cover; 45. terminal; 46. heat conducting plate; 47. adapter; 48. fixed plate; 49. sealing strip; 410. conductive column; 5. rotating handle; 6. vertical screw; 61. auxiliary gear; 62. driving gear; 63. auxiliary shaft; 64. support bearing; 65. driving shaft; 7. movable sleeve; 71. support block; 72. double-headed screw; 8. supporting cross frame; 9. external wire; 10. control component. DETAILED DESCRIPTION

[0023] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-5The present invention provides a technical solution: a vertical axial flow pump anti-freezing and anti-cracking heating device for high-cold areas, including an axial flow pump structure and a heating component 4. The axial flow pump structure includes an inlet pipe 1, a straight plate 2 is connected to the top of the inlet pipe 1, and two groups of reinforcing ribs 21 with the same structure are symmetrically installed on the tops of the left and right sides of the straight rod 2, a water outlet elbow 3 is connected to the top of the straight plate 2, a packing structure 31 is vertically connected to the outer wall of the water outlet elbow 3, and a coupling 32 is connected to the top of the packing structure 31, and the water outlet elbow 3 is connected to the inner cavity of the water inlet pipe 1. This is the existing structure of the axial flow pump and will not be described in detail. The outer wall of the water inlet pipe 1 is wrapped with a heating component 4, the heating component 4 is connected to an external wire 9, and the external wire 9 is connected to a control component 10, the external wire 9 is also connected to the external power supply while being connected to the control component 10. The air heating rod 43 is turned on and off through the control component 10 to realize the switch of the heating component 4 and perform the heating operation. The left end of the heating component 4 is connected with a movable sleeve 7, and the movable sleeve 7 is threadedly connected to the outer wall of the vertical screw 6. The movable sleeve 7 is connected to the outer wall of the vertical screw 6 to heat different positions of the water inlet pipe 1. The top of the vertical screw 6 is connected with a rotating handle 5 through a rotating connecting piece, and the handle 5 is set on the straight board 2. The bottom of the vertical screw 6 is connected with a supporting cross frame 8, and the right end of the supporting cross frame 8 is connected to the outer wall of the water inlet pipe 1. The supporting cross frame 8 is connected with a bearing assembly, and the bearing assembly is sleeved on the bottom of the vertical screw 6.

[0025] In this embodiment, please refer to Figure 1 In winter in the north, ice easily forms inside the water inlet pipe 1 in extremely cold conditions, which affects the operation of the axial flow pump and often causes cracks in the underwater part. The control component 10 is used to turn on the heating component 4 for preheating and heating the water inlet pipe 1 to melt the ice inside the water inlet pipe 1 and ensure the normal operation of the axial flow pump. The vertical screw 6 can be easily rotated by rotating the handle 5 to drive the movable sleeve 7 to move up and down, thereby driving the heating component 4 to move up and down to perform all-round heating operations on the water inlet pipe 1.

[0026] Among them, preferably, an auxiliary gear 61 is sleeved on the top of the vertical screw rod 6, and a driving gear 62 is meshed on the outer wall of the auxiliary gear 61, and the driving gear 62 drives the auxiliary gear 61 to rotate, and the top of the auxiliary gear 61 is connected to an auxiliary shaft rod 63, and the top of the driving gear 62 is connected to a driving shaft rod 65, and the tops of the auxiliary shaft rod 63 and the driving shaft rod 65 are both provided with support bearings 64, and the top of the driving shaft rod 65 passes through the straight plate 2 and is connected to the bottom of the rotating handle 5, and a bearing mounting groove matching the support bearing 64 is opened on the straight plate 2 to provide effective support for the vertical screw rod 6.

[0027] In this embodiment, please refer to Figure 1 and Figure 2When the rotating handle 5 is turned, the driving gear 62 rotates, and the auxiliary gear 61 meshing with it rotates accordingly. Under the support of the supporting cross frame 8, the vertical screw 6 rotates stably, and the movable sleeve 7 connected to it can move up and down, thereby mobilizing the heating component 4 to move and improving the efficiency of heating and heating.

[0028] Preferably, the heating component 4 includes two groups of semicircular heating cylinders 41 with the same structure, and the two groups of semicircular heating cylinders 41 cooperate with each other to fit exactly on the outer wall of the water inlet pipe 1, realizing convenient operation of disassembly, assembly and maintenance. A semicircular groove 42 is opened on the top of the semicircular heating cylinder 41, and a fixing frame is arranged inside the semicircular groove 42, and ten groups of heating rods 43 with the same structure are evenly arranged on the fixing frame to realize heating operation, and a sealing cover 44 is arranged on the top of the semicircular heating cylinder 41, and the sealing cover 44 cooperates with the semicircular heating cylinder 41 to improve the sealing of the heating component 4 and prevent the external water stains from entering the interior and affecting its operation, and a terminal 45 is installed on the top of the sealing cover 44, and the terminal 45 is used to connect with the external wire 9 to realize electrical connection.

[0029] Preferably, a heat conducting plate 46 is provided on the arc-shaped inner wall of the semicircular heating cylinder 41, and the heat generated by the heating rod 43 is transmitted to the outer wall of the water inlet pipe 1 through the heat conducting plate 46, and the heat conducting plate 46 is in contact with the outer wall of the water inlet pipe 1, and one end of the semicircular heating cylinder 41 is provided with an adapter 47 adapted to the movable sleeve 7, which is convenient for connection with the movable sleeve 7, and the other end of the semicircular heating cylinder 41 is connected to a fixed plate 48. After the two groups of semicircular heating cylinders 41 are combined, they are connected by two groups of fixed plates 48 to ensure the stability of the heating assembly 4.

[0030] Preferably, a sealing strip 49 is provided at the bottom of the sealing cover 44, and a sealing groove matched with the sealing strip 49 is opened at the top of the semicircular heating cylinder 41, and conductive columns 410 are evenly provided at the bottom of the sealing cover 44. The inside of the sealing cover 44 is connected with wires (not shown in the figure), and the wires are electrically connected to the conductive columns 410 respectively, and the wiring ends of the wires are connected to the wiring columns 45, which is convenient for connection with an external power supply and control component 10, and convenient for connection between the heating rod 43 and the heating power supply, and the conductive columns 410 and the heating rod 43 are positioned opposite to each other.

[0031] In this embodiment, please refer to Figure 1 , Figure 3 and Figure 4, two sets of adapters 47 are connected to the movable sleeve 7, the two sets of semicircular heating cylinders 41 are connected to each other, the two sets of fixed plates 48 are fixed by bolts, and the vertical screw 6 is rotated to adjust it to a suitable position. When encountering the cold season in winter, the inside of the axial flow pump is frozen. At this time, the control component can be turned on, the external power supply is energized, and the heating rod 43 connected to the conductive column 410 starts to work, and performs preheating and heating operations. The generated heat is transmitted to the water inlet pipe 1 through the heat conducting plate 46, heating the ice inside the water inlet pipe 1 to melt it, thereby ensuring the normal operation of the axial flow pump.

[0032] Preferably, a support block 71 is connected to the outer wall of the movable sleeve 7 close to the heating component 4 , and a double-headed screw 72 is connected to the support block 71 .

[0033] See also Figure 1 and Figure 5 The two sets of adapters 47 are connected to the support block 71 and fixed by double-headed screws 72, which facilitates the disassembly and assembly of the two sets of semicircular heating cylinders 41 and is easy to operate.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Vertical axial flow pump anti-freezing and anti-cracking heating device in cold areas, characterized by: The axial flow pump structure comprises an axial flow pump structure and a heating component (4), wherein the axial flow pump structure comprises a water inlet pipe (1), the outer wall of the water inlet pipe (1) is wrapped with a heating component (4), the top of the water inlet pipe (1) is connected to a straight plate (2), and two groups of reinforcing ribs (21) with the same structure are symmetrically installed on the tops of the left and right sides of the straight rod (2), the top of the straight plate (2) is connected to a water outlet elbow (3), and the water outlet elbow (3) is communicated with the inner cavity of the water inlet pipe (1); The heating component (4) is connected to an external wire (9), and the external wire (9) is connected to a control component (10); The left end of the heating component (4) is connected to a movable sleeve (7), and the movable sleeve (7) is threadedly connected to the outer wall of the vertical screw (6). The top of the vertical screw (6) is connected to a rotating handle (5) through a rotating connecting piece, and the handle (5) is arranged on the straight plate (2). The bottom of the vertical screw (6) is connected to a supporting cross frame (8), and the right end of the supporting cross frame (8) is connected to the outer wall of the water inlet pipe (1). The supporting cross frame (8) is connected to a bearing assembly, and the bearing assembly is sleeved on the bottom of the vertical screw (6).

2. The vertical axial flow pump anti-freezing and anti-cracking heating device for high-cold areas according to claim 1 is characterized by: The top of the vertical screw rod (6) is sleeved with an auxiliary gear (61), the outer wall of the auxiliary gear (61) is meshed with a driving gear (62), the top of the auxiliary gear (61) is connected to an auxiliary shaft rod (63), and the top of the driving gear (62) is connected to a driving shaft rod (65), the tops of the auxiliary shaft rod (63) and the driving shaft rod (65) are both provided with support bearings (64), and the top of the driving shaft rod (65) passes through the straight plate (2) and is connected to the bottom of the rotating handle (5).

3. The vertical axial flow pump anti-freezing and anti-cracking heating device for high-cold areas according to claim 2 is characterized by: The straight plate (2) is provided with a bearing installation groove matching the supporting bearing (64).

4. The vertical axial flow pump anti-freezing and anti-cracking heating device for high-cold areas according to claim 3 is characterized by: The heating assembly (4) comprises two groups of semicircular heating cylinders (41) with the same structure, the top of the semicircular heating cylinder (41) is provided with a semicircular groove (42), a fixing frame is arranged inside the semicircular groove (42), and ten groups of heating rods (43) with the same structure are evenly arranged on the fixing frame, and a sealing cover (44) is arranged on the top of the semicircular heating cylinder (41), and a terminal (45) is installed on the top of the sealing cover (44).

5. The vertical axial flow pump anti-freezing and anti-cracking heating device for high-cold areas according to claim 4 is characterized by: A heat conducting plate (46) is arranged on the arc-shaped inner wall of the semicircular heating cylinder (41), and the heat conducting plate (46) is in contact with the outer wall of the water inlet pipe (1); an adapter (47) adapted to the movable sleeve (7) is arranged at one end of the semicircular heating cylinder (41), and a fixed plate (48) is connected to the other end of the semicircular heating cylinder (41).

6. The vertical axial flow pump anti-freezing and anti-cracking heating device for high-cold areas according to claim 5 is characterized by: A sealing strip (49) is arranged at the bottom of the sealing cover (44), and a sealing groove matched with the sealing strip (49) is opened at the top of the semicircular heating cylinder (41), and conductive columns (410) are evenly arranged at the bottom of the sealing cover (44), and the conductive columns (410) are opposite to the heating rod (43).

7. The vertical axial flow pump anti-freezing and anti-cracking heating device for high-cold areas according to claim 6 is characterized by: A support block (71) is connected to the outer wall of the movable sleeve (7) close to the heating component (4), and a double-headed screw (72) is connected to the support block (71).

8. The vertical axial flow pump anti-freezing and anti-cracking heating device for high-cold areas according to claim 1 is characterized by: A packing structure (31) is vertically connected to the outer wall of the water outlet elbow (3), and a coupling (32) is connected to the top of the packing structure (31).

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