Asphalt conveying rotor pump

Abstract

The utility model discloses an asphalt conveying rotor pump which comprises a pump body. Two longitudinally-arranged rotor bodies are rotationally connected into the pump body. A feeding pipe and a discharging pipe are fixedly connected to the two sides of the middle of the pump body respectively. A heat exchange pipe is embedded in the inner wall of the pump body in the length direction and is of a spiral structure. The two ends of the heat exchange pipe are arranged upwards and penetrate through the outer wall of the pump body to the outside. By means of the structure, asphalt attached to the inner wall of the pump body can be heated through high-temperature and high-heat steam or water, the asphalt is softened to be in an original solution state, the rotor body can rotate easily, the effect of conveying the asphalt is achieved, and the problem of jamming or abrasion is avoided; when the pump body is in a running state, if heat of outside air is low, high-temperature and high-heat steam or water can be used for carrying out heat preservation and heating on asphalt passing through the pump body, and the situation that the asphalt exchanges heat with air in the conveying process in a pipeline, so that the temperature is reduced, the pump body is difficult to convey, and power consumption is improved is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of conveying pump technology, specifically, it relates to an asphalt conveying rotor pump. Background Technology

[0002] Asphalt is a highly viscous, black or brown organic substance mainly composed of hydrocarbons and their derivatives. It possesses excellent adhesion, water resistance, and anti-aging properties, and is widely used in road construction, waterproofing materials, coating manufacturing, and electrical insulation materials. Due to its high viscosity, asphalt is often transported via pipeline using rotary pumps.

[0003] Patent CN215292865U discloses a rock asphalt modified asphalt conveying pump, which changes the transmission ratio of the impeller by contacting different tooth grooves with the transmission gears in the variable speed gearbox. When the system detects that the speed of any set of impellers has disengaged, it can adjust the gears in time to increase the transmission ratio or reduce the speed of another set of gears to achieve balance and avoid collision and wear between the impeller and the gears.

[0004] In the above-mentioned patented technical solution, the gear ratio between gears is changed by using different tooth grooves inside the gearbox and the gear transmission teeth to avoid collision and wear between the impeller and the gear. However, in actual use, asphalt has high viscosity and is easily affected by external temperature, and it is very easy to solidify, which makes it difficult to transport when the rotor pump is turned on and increases power consumption during use, which has certain limitations. Utility Model Content

[0005] To address the technical problems of difficulty in asphalt transportation and increased power consumption during the initial startup or use of a rotor pump, caused by the characteristic of asphalt easily solidifying due to external temperature influences, this utility model provides an asphalt transportation rotor pump.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] An asphalt conveying rotor pump includes a pump body; two longitudinally arranged rotor bodies are rotatably connected inside the pump body; an inlet pipe and an outlet pipe are fixedly connected to the middle two sides of the pump body respectively; a heat exchange tube is embedded in the inner wall of the pump body along the length direction, and the heat exchange tube has a spiral structure; both ends of the heat exchange tube are arranged upward and penetrate the outer wall of the pump body to the outside; an air inlet connector and an air outlet connector are fixedly connected to the two ends of the heat exchange tube corresponding to the outside of the pump body respectively, the air inlet connector is connected to a steam source or a hot water source, and the air outlet connector is connected to an exhaust pipe or a drainage pipe.

[0008] Furthermore, the heat exchange tubes form a grid structure corresponding to the positions of the feed pipe and the discharge pipe.

[0009] Furthermore, a filter screen is installed inside the feed pipe. The filter screen has a circular structure and its diameter is the same as the inner diameter of the feed pipe.

[0010] Furthermore, a fixing block is fixedly connected to the middle of the feed pipe; a fixing groove is provided on the fixing block, and the fixing groove has a rectangular structure; a connecting block is provided inside the fixing groove, and the thickness of the connecting block is the same as the thickness of the fixing groove.

[0011] Furthermore, the upper end of the connecting block is connected to the filter screen; a fixing plate is fixed to the lower end of the connecting block, and the size of the fixing plate is the same as the size of the lower surface of the connecting block.

[0012] Furthermore, a plurality of evenly distributed polygonal tubes are fixed to the side of the filter screen away from the rotor body. These polygonal tubes are used to slow down the flow rate of the asphalt solution.

[0013] Furthermore, flanges are fixedly connected to the outer ports of both the feed pipe and the discharge pipe.

[0014] The beneficial effects of this utility model are:

[0015] 1) This utility model connects to a steam or hot water source through an air inlet connector and a pipe, and then connects to an exhaust pipe through an air outlet structure. High-temperature steam or water is then used to exchange heat with the pump body. When the pump body is just started, the high-temperature steam or water heats the asphalt adhering to the inner wall of the pump body, softening it to its original solution state. The rotor body can then rotate easily, achieving the effect of transporting the asphalt without jamming or wear. When the pump body is running, if the outside air temperature is low, high-temperature steam or water can be used to heat and insulate the asphalt passing through the pump body, preventing the asphalt from exchanging heat with the air during transport in the pipe, which would cause a temperature drop, making pump transport difficult and increasing power consumption.

[0016] 2) When the asphalt passes through the feed pipe and discharge pipe, it will come into contact with the grid-shaped heat exchange pipe, which can improve the heat exchange efficiency between the asphalt and the heat exchange pipe, and improve the heat preservation effect and heat recovery efficiency of the asphalt.

[0017] 3) When the asphalt passes through the feed pipe, it will first come into contact with the polygonal pipe and pass through the polygonal pipe. The polygonal pipe will increase the flow speed of the asphalt through the friction of the pipe wall, thus avoiding damage to the heat exchange tube due to excessive speed.

[0018] 4) When the asphalt passes through the feed pipe, it will also come into contact with the filter screen. The filter screen can filter out large particles of impurities in the asphalt solution, preventing them from entering the pump body and affecting the rotor body, thereby reducing wear on the gears that drive the rotor body and improving service life. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a longitudinal sectional view of the present invention;

[0022] Figure 3 This is a cross-sectional view of the present invention;

[0023] Figure 4 This is a schematic diagram of the polygonal tube structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the connecting block structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the heat exchange tube structure of this utility model;

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Pump body; 2. Inlet pipe; 3. Outlet pipe; 4. Flange; 5. Heat exchanger pipe; 6. Air inlet connector; 7. Air outlet connector; 8. Fixing block; 9. Fixing groove; 10. Filter screen; 11. Polygonal tube; 12. Connecting block; 13. Fixing plate; 14. Rotor body. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1 - Figure 3 As shown, an asphalt conveying rotor pump includes a pump body 1; two longitudinally arranged rotor bodies 13 are rotatably connected inside the pump body 1; a feed pipe 2 and a discharge pipe 3 are respectively fixedly connected to the middle two sides of the pump body 1; and flanges 4 are fixedly connected to the outer ports of the feed pipe 2 and the discharge pipe 3.

[0030] Please refer to it again. Figure 2, Figure 3 as well as Figure 6 As shown, a heat exchange tube 5 is embedded in the inner wall of the pump body 1 along the length direction. The heat exchange tube 5 has a spiral structure to increase the heat exchange area between the heat exchange tube 5 and the pump body 1. The heat exchange tube 5 forms a grid structure corresponding to the positions of the feed pipe 2 and the discharge pipe. Both ends of the heat exchange tube 5 are set upward and penetrate the outer wall of the pump body 1 to the outside. At the two ends of the heat exchange tube 5 corresponding to the outside of the pump body 1, an air inlet connector 6 and an air outlet connector 61 are respectively fixed. The air inlet connector 6 is used to connect to a steam source or a hot water source, and the air outlet connector 61 is used to connect to an exhaust pipe or a drainage pipe.

[0031] Please refer to it again. Figures 2-5 As shown, a filter screen 9 is installed inside the feed pipe 2. The filter screen 9 has a circular structure and the diameter is the same as the inner diameter of the feed pipe 2. It is used to filter large particulate impurities in the asphalt to avoid affecting the normal rotation of the rotor body 13.

[0032] Please refer to it again. Figure 1 , Figure 2 as well as Figure 5 As shown, a fixing block 7 is fixedly connected to the middle of the feed pipe 2; a fixing groove 8 is provided on the fixing block 7, and the fixing groove 8 has a rectangular structure; a connecting block 11 is provided inside the fixing groove 8, and the thickness of the connecting block 11 is the same as the thickness of the fixing groove 8; the upper end of the connecting block 11 is connected to the filter screen 9; a fixing plate 12 is fixedly connected to the lower end of the connecting block 11, and the size of the fixing plate 12 is the same as the size of the lower surface of the connecting block 11.

[0033] Please refer to it again. Figure 4 and Figure 6 As shown, a plurality of evenly distributed polygonal tubes 10 are fixed to the side of the filter screen 9 away from the rotor body 13. These polygonal tubes 10 are used to slow down the flow rate of the asphalt solution.

[0034] To facilitate understanding of the above-mentioned technical solution of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below:

[0035] The pump body 1 is connected to a steam or hot water source via an inlet connector 6 and a pipe, and then connected to an exhaust pipe via an outlet structure. High-temperature steam or water is used to exchange heat with the interior of the pump body 1. When the pump body 1 is first started, the high-temperature steam or water heats the asphalt adhering to the inner wall of the pump body 1, softening it back to its original solution state. This allows the rotor body 13 to rotate easily, achieving the effect of transporting the asphalt without jamming or wear. When the pump body 1 is running, if the outside air temperature is low, high-temperature steam or water can be used to heat and insulate the asphalt passing through the pump body 1, preventing the asphalt from cooling down due to heat exchange with the air during transport within the pipe, which would make transport difficult and increase power consumption.

[0036] When the asphalt passes through the feed pipe 2 and the discharge pipe 3, it will come into contact with the grid-shaped heat exchange pipe 5, which can improve the heat exchange efficiency between the asphalt and the heat exchange pipe 5, and improve the heat preservation effect and heat recovery efficiency of the asphalt.

[0037] When the asphalt passes through the feed pipe 2, it will first come into contact with the polygonal pipe 10 and pass through the polygonal pipe 10. The polygonal pipe 10 is designed to increase the flow speed of the asphalt through the friction of the pipe wall, thus preventing the heat exchange tube 5 from being damaged by excessive speed.

[0038] When the asphalt passes through the feed pipe 2, it will also come into contact with the filter screen 9. The filter screen 9 can filter out large particles of impurities in the asphalt solution, preventing them from entering the pump body 1 and affecting the rotor body 13, thereby causing wear on the gears that drive the rotor body 13 and improving its service life.

[0039] With the connection block 11, fixing block 7, fixing plate 12 and fixing groove 8, after the pump body 1 has finished working, the operator can easily remove the internal filter screen 9 and take out the intercepted large particles of impurities without having to remove the pipe connected to the flange 4, which is convenient and quick.

[0040] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, all of which should fall within the protection scope of this utility model.

Claims

1. An asphalt conveying rotor pump, comprising a pump body (1); two longitudinally arranged rotor bodies (13) are rotatably connected inside the pump body (1); a feed pipe (2) and a discharge pipe (3) are respectively fixedly connected to the middle two sides of the pump body (1); Its features are: A heat exchange tube (5) is embedded in the inner wall of the pump body (1) along the length direction. The heat exchange tube (5) has a spiral structure. Both ends of the heat exchange tube (5) are set upward and penetrate the outer wall of the pump body (1) to the outside. The heat exchange tube (5) is fixed to an air inlet connector (6) and an air outlet connector (61) at its two ends corresponding to the outside of the pump body (1). The air inlet connector (6) is connected to a steam source or a hot water source, and the air outlet connector (61) is connected to an exhaust pipe or a drainage pipe.

2. The asphalt conveying rotor pump according to claim 1, characterized in that: The heat exchange tube (5) forms a grid structure corresponding to the positions of the feed pipe (2) and the discharge pipe.

3. The asphalt conveying rotor pump according to claim 1, characterized in that: The feed pipe (2) is equipped with a filter screen (9), which is circular in shape and has the same diameter as the inner diameter of the feed pipe (2).

4. The asphalt conveying rotor pump according to claim 1, characterized in that: A fixing block (7) is fixedly connected to the middle of the feed pipe (2); a fixing groove (8) is provided on the fixing block (7), and the fixing groove (8) has a rectangular structure; a connecting block (11) is provided inside the fixing groove (8), and the thickness of the connecting block (11) is the same as the thickness of the fixing groove (8).

5. An asphalt conveying rotor pump according to claim 4, characterized in that: The upper end of the connecting block (11) is connected to the filter screen (9); a fixing plate (12) is fixed to the lower end of the connecting block (11), and the size of the fixing plate (12) is the same as the size of the lower surface of the connecting block (11).

6. The asphalt conveying rotor pump according to claim 5, characterized in that: The filter screen (9) has a plurality of evenly distributed polygonal tubes (10) fixed to the side away from the rotor body (13). The polygonal tubes (10) are used to slow down the flow rate of the asphalt solution.

7. An asphalt conveying rotor pump according to claim 1, characterized in that: Flanges (4) are fixed to the outer ends of both the feed pipe (2) and the discharge pipe (3).

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