Shield pump head
A technology of shielding pumps and pump heads, which is applied to pumps, parts of pumping devices for elastic fluids, pump components, etc., which can solve problems such as the influence of sealing effects, small space, cumbersome assembly and disassembly, etc., to reduce resistance and increase The effect of large spaces
Active Publication Date: 2013-11-20
浙江威格泵业有限公司
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- Description
- Claims
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Problems solved by technology
The pump casing of this structure is fixed to the casing of the motor through the coupling, and the adjacent parts are fastened by bolts and nuts, resulting in cumbersome assembly and disassembly. If the degree of cooperation is low, the sealing effect will be affected. Moreover, the impeller has a small space in the pump casing, and the inner cavity wall of the pump casing causes greater resistance to the fluid, which reduces the efficiency of the canned pump.
Method used
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Embodiment Construction
[0021] The following are specific embodiments of the present invention in conjunction with the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.
[0022] The pump head of the canned motor pump is sealed and connected with the motor shell by a connecting sleeve, which is suitable for transporting precious liquids or liquids with radioactivity. Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, the pump head of the canned motor pump includes a pump cavity 1, a liquid inlet channel 2 and a liquid outlet channel 3 communicating with the pump cavity 1; a concave flow channel 4 is provided on the wall of the pump cavity 1, and the flow channel 4 is spiral Shaped and communicated with the liquid outlet channel 3, the pump head is made of brass material. Compared with the prior art, the canned motor pump equipped with the pump head can increase the fluid delivery volume pe...
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The invention provides a shield pump head, and belongs to the technical field of pumps. The shield pump head solves the problems that an existing shied pump head is small in inner cavity space, and resistance of the inner cavity wall to fluid is large. The shield pump head comprises a pump cavity, a liquid inlet channel and a liquid outlet channel, wherein the liquid inlet channel and the liquid outlet channel are communicated with the pump cavity. A recessed passageway is formed in the wall of the pump cavity, is spiral and is communicated with the liquid outlet channel. According to the shield pump head, because the recessed passageway is formed in the inner cavity of the shield pump head, and is arranged in a spiral mode, the resistance to fluid is reduced; furthermore, because the passageway is recessed, the space of the inner cavity of the shield pump head is increased and a wide blade can be accommodated in the shield pump head.
Description
Technical field [0001] The invention belongs to the technical field of pumps and relates to a pump head of a canned motor pump. Background technique [0002] The existing canned motor pump includes a pump head, a motor and a frame. The pump head has a pump cavity, a liquid inlet channel and a liquid outlet channel. The pump cavity is equipped with an impeller. The motor includes a motor main shaft, a rotor around the motor main shaft, and a surrounding rotor The outer stator has a shielding sleeve between the stator and the rotor. The shielding sleeve forms a space separating the stator and the rotor; the stator shell is fixedly connected to the pump body, and the space between the stator and the rotor is in the pump head The cavity is connected, and the rotating shaft of the impeller is connected with the rotor shaft of the shielded motor. The fluid enters the pump cavity from the liquid inlet channel, obtains a large centrifugal force driven by the impeller, and is finally dis...
Claims
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Inventor 陈斌
Owner 浙江威格泵业有限公司