High-temperature magnetic drive pump impeller and high-temperature magnetic drive pump

Abstract

The utility model provides a high-temperature magnetic drive pump impeller and a high-temperature magnetic drive pump, and belongs to the technical field of magnetic drive pumps. The problem that in the prior art, the heat dissipation cost of an impeller is too high is solved. The magnetic drive pump comprises a pump body, a pump cover, a pump shaft, an impeller assembly, a magnetic driver and a driving motor, the pump body and the pump cover are connected to form a pump cavity, the impeller assembly and a rotor base body are installed in the pump cavity, and the impeller assembly comprises an impeller disc, the rotor base body and a heat insulation cover body. A plurality of radial straight blades are fixedly arranged on the end face of the impeller disc, the end of the heat insulation cover body is fixedly connected with the end of the impeller disc, an installation cavity is formed in the heat insulation cover body, the rotor base body is installed in the installation cavity, a connecting frustum is formed on the inner end face of the heat insulation cover body, and an inserting cylinder is formed on the end face of the rotor base body. The connecting frustum is inserted into the inserting cylinder, a fixing cylinder is formed in the center of the impeller disc, and the front end of the rotor base body extends into the fixing cylinder. The utility model has the advantages that the cost is lower, and the impeller is not easy to deform due to high temperature.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of magnetic force pump, and relates to a high temperature magnetic force pump impeller and high temperature magnetic force pump. BACKGROUND

[0002] The high temperature magnetic force pump is a kind of pump that realizes non-contact torque transmission by the aid of magnetic force driver, replaces dynamic seal with static seal, to achieve completely leakage-free pump.The impeller of high temperature magnetic force pump in prior art is vulnerable to damage by high temperature, corrosion and the like.

[0003] The Chinese patent with patent publication number CN207363960U discloses a high temperature magnetic force transmission pump, comprising a pump cover and a pump shell, a heat conduction plate is installed in the inside of the pump shell, the outer surface of the pump shell is uniformly provided with a plurality of heat dissipation fins, an impeller is arranged in the inside of the pump shell, the impeller is arranged at the water inlet position close to one end of the pump shell, the one end of the impeller is provided with the pump cover, the pump cover is sealingly connected with the pump shell, a bearing seat is arranged on the pump cover, the bearing seat is fixed by a reinforcing rib welded on the inner wall of the pump cover, a support bearing is arranged in the inside of the bearing seat, the support bearing in the inside of the bearing seat is rotationally connected with one end of a rotating shaft, the other end of the rotating shaft is connected with an inner magnetic steel assembly, a driving shaft is connected with a driving motor through a cooling box arranged on the right side of the pump shell.

[0004] In the high temperature magnetic force transmission pump provided by the patent, the cooling channel is arranged in the rotating shaft to achieve the cooling effect of the impeller, but the production cost is high, and the impeller is of conical structure, and the blade end of the impeller is thin, so damage phenomenon is prone to occur at high temperature. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of high temperature magnetic force pump impeller and high temperature magnetic force pump to solve the problems in prior art.

[0006] The utility model discloses a kind of high temperature magnetic force pump impeller and high temperature magnetic force pump, including pump body, pump cover, pump shaft, impeller assembly, magnetic force driver and driving motor, the pump body and pump cover are connected to form pump cavity, the impeller assembly and rotor matrix are installed in the inside of pump cavity, the impeller assembly includes impeller disc, rotor matrix, heat shield body, the impeller disc is planar disc and is fixedly provided with a plurality of radial straight blades on impeller disc end face, the heat shield body end is fixedly connected with impeller disc end, installation cavity is formed in the inside of heat shield body, the rotor matrix is installed in the inside of installation cavity, the heat shield inner end face is formed with connecting cone, the rotor matrix end face is formed with spigot, the connecting cone is inserted into spigot, the impeller disc center is formed with fixed cylinder, the rotor matrix front end is inserted into fixed cylinder, the driving motor is stretched out with motor shaft, the motor shaft is connected with magnetic force driver.

[0007] The impeller disc is provided with a plurality of heat dissipation holes.

[0008] The number of the radial straight blades is four and the radial straight blades are arranged in a circumferential array, and a pressure reduction groove is arranged on the inner side end of the radial straight blades.

[0009] The pump body rear side is formed with a connecting cylinder, the connecting cylinder is sleeved on the outside of the driving motor, and the pump body lower end is formed with a fixing foot.

[0010] The pump shaft is arranged through the rotor base body.

[0011] Compared with the prior art, the high-temperature magnetic force pump impeller and the high-temperature magnetic force pump have the following beneficial effects: the medium is arranged between the impeller disc and the magnetic force driver to effectively isolate the heat of the impeller disc, the deformation of the impeller disc caused by the high temperature of the impeller disc is prevented, the heat shield body is made of ceramic fiber material and has low cost, and the blades on the impeller disc are radial straight blades, so that the problem that the end of the blade is easily deformed and damaged due to the thin end of the blade is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 is a schematic diagram of the overall structure of the utility model;

[0013] Fig. 2 is a schematic diagram of the explosion structure of the utility model;

[0014] Fig. 3 is a schematic diagram of the explosion structure of the impeller assembly;

[0015] Fig. 4 is a schematic diagram of another angle structure of the impeller assembly.

[0016] In the figure: 1, pump body; 11, connecting cylinder; 12, fixing foot; 2, pump cover; 3, pump shaft; 4, impeller assembly; 41, impeller disc; 411, radial straight blade; 412, fixing cylinder; 413, heat dissipation hole; 414, pressure reduction groove; 42, rotor base body; 421, plug-in cylinder; 43, heat shield body; 431, mounting cavity; 432, connecting cone; 5, magnetic force driver; 6, driving motor; 61, motor shaft. DETAILED DESCRIPTION

[0017] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0018] For example, Figs. 1 to 4As shown, the embodiment includes a pump body 1, a pump cover 2, a pump shaft 3, an impeller assembly 4, a magnetic transmission 5 and a drive motor 6, the pump body 1 and the pump cover 2 are connected to form a pump cavity, the impeller assembly 4 and the rotor base 42 are installed inside the pump cavity, the impeller assembly 4 includes an impeller disc 41, a rotor base 42 and a heat shield 43, the impeller disc 41 is a flat disc, and four radial straight blades 411 are fixedly arranged on the end face of the impeller disc 41, the four radial straight blades 411 are arranged in a circumferential array on the front side end face of the impeller disc 41, the heat shield 43 is made of ceramic fiber material, the front side end of the heat shield 43 is fixedly connected with the rear side end of the impeller disc 41, the inside of the heat shield 43 is formed into a mounting cavity 431, the rotor base 42 is installed inside the mounting cavity 431, a connecting frustum 432 is formed on the inner end face of the heat shield, an insertion sleeve 421 is formed on the end face of the rotor base 42, when the rotor base 42 and the heat shield are connected, the connecting frustum 432 is inserted into the insertion sleeve 421, so that the rotor base 42 and the heat shield are fixedly connected, a fixed sleeve 412 is formed at the center of the impeller disc 41, when the rotor base 42 and the impeller disc 41 are connected, the front end of the rotor base 42 extends into the fixed sleeve 412, so that the rotor base 42 and the impeller disc 41 are fixedly connected, the pump shaft 3 penetrates through the rotor base 42.

[0019] As shown, Figs. 1 to 2 The rear side of the pump body 1 is formed with a connecting sleeve 11, the connecting sleeve 11 is sleeved outside the drive motor 6, the lower end of the pump body 1 is formed with a fixed foot 12, the drive motor 6 extends with a motor shaft 61, and the motor shaft 61 is connected with the magnetic transmission 5.

[0020] Further, as shown, Figs. 3 to 4 The thickness of the radial straight blade 411 is 8mm, and the inner side end of two opposite radial straight blades 411 is provided with a pressure reduction groove 414, which helps to release the bubbles gathered near the radial straight blade 411, avoids the impact force generated by the rupture of the bubbles, and reduces the damage of cavitation to the radial straight blade 411.

[0021] Further, as shown, Figs. 3 to 4 Four heat dissipation holes 413 are formed in the impeller disc 41, and the heat dissipation holes 413 are distributed at intervals with the radial straight blades 411.

[0022] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

[0023] Although various terms are used herein, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the present application; any interpretation of them as any kind of additional limitation is contrary to the spirit of the present application.

Claims

1. A high-temperature magnetic force pump impeller and high-temperature magnetic force pump, comprising a pump body (1), a pump cover (2), a pump shaft (3), an impeller assembly (4), a magnetic force driver (5) and a driving motor (6), the pump body (1) and the pump cover (2) are connected to form a pump cavity, the impeller assembly (4) and the rotor base (42) are installed inside the pump cavity, characterized in that: The impeller assembly (4) comprises an impeller disc (41), a rotor base (42) and a heat insulation cover (43), the impeller disc (41) is a flat disc and is provided with a plurality of radial straight blades (411) on the end face, the end of the heat insulation cover (43) is fixedly connected with the end of the impeller disc (41), the heat insulation cover (43) is internally formed with a mounting cavity (431), the rotor base (42) is mounted in the mounting cavity (431), the inner end face of the heat insulation cover is formed with a connecting cone (432), the end face of the rotor base (42) is formed with a plug-in sleeve (421), the connecting cone (432) is inserted into the plug-in sleeve (421), the center of the impeller disc (41) is formed with a fixing sleeve (412), the front end of the rotor base (42) extends into the fixing sleeve (412), the driving motor (6) extends out a motor shaft (61), and the motor shaft (61) is connected with the magnetic transmission device (5).

2. The high-temperature magnetic pump impeller and high-temperature magnetic pump according to claim 1, characterized in that: A plurality of heat dissipation holes (413) are formed in the impeller disc (41).

3. The high-temperature magnetic pump impeller and high-temperature magnetic pump according to claim 1, characterized in that: The number of the radial straight blades (411) is four and they are arranged in a circumferential array, and a pressure reduction groove (414) is formed in the inner end of the radial straight blade (411).

4. The high-temperature magnetic pump impeller and high-temperature magnetic pump according to claim 1, characterized in that: A connecting sleeve (11) is formed on the rear side of the pump body (1), the connecting sleeve (11) is sleeved on the outside of the driving motor (6), and a fixing foot (12) is formed on the lower end of the pump body (1).

5. The high-temperature magnetic pump impeller and high-temperature magnetic pump according to claim 1, characterized in that: The pump shaft (3) penetrates through the rotor base (42).

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