Shaftless seal circulating pump
A circulating pump and shaftless technology, which is applied in the field of shaftless sealed circulating pumps, can solve the problems of impeding the normal rotation of the impeller, increasing the noise of the circulating pump, and blocking of the circulating pump, etc., and achieves the effects of low noise, smooth rotation, and avoiding locking
Active Publication Date: 2015-10-21
浙江浪奇科技有限公司
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Problems solved by technology
However, after the circulation pump with this structure has been used for a period of time, a certain amount of scale will accumulate on the inner wall of the pump casing, which will hinder the normal rotation of the impeller, gradually increase the noise of the circulation pump, and eventually cause the circulation pump to be stuck , poor stability
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[0031]The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.
[0032] like figure 1 , figure 2 As shown, the shaftless sealed circulating pump includes a pump casing 3, a shield 4, a stator 7, a rotor 8, an impeller 9, an upper magnetic ring 10, a lower magnetic ring 11 and a positioning mechanism.
[0033] The pump housing 3 includes a pump body 31 and a pump cover 32. The shielding cover 4 is made of stainless steel through anticorrosion treatment. The shielding cover 4 is bowl-shaped and has an opening at the bottom. The peripheral edge of the bottom opening of the shielding cover 4 is located between the pump body 31 and the pump cover. 32, the pump body 31 and the pump cover 32 are fixedly connected by bolts 22 and the shielding cover 4 is fixedly connected in the pump casing 3....
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The invention provides a shaftless seal circulating pump, belongs to the technical field of pump manufacturing, and solves the problems of high noise and weak stability in traditional circulating pumps. The shaftless seal circulating pump comprises a pump shell having a water inlet and a water outlet at the bottom, wherein a shielding cover is arranged in the pump shell to divide the pump shell into an upper cavity and a lower cavity, which are not communicated; the water inlet and the water outlet are both communicated with the lower cavity; a stator is fixedly connected in the upper cavity; a rotor and an impeller are arranged in the lower cavity; the rotor is fixedly connected with the impeller, and is fixedly connected with an upper magnetic ring; a lower magnetic ring and a positioning mechanism are fixedly connected in the lower cavity; the same poles of the upper magnetic ring and the lower magnetic ring are oppositely arranged; and the top of the positioning mechanism is fixedly connected with the shielding cover, and the bottom is pressed against the center of the impeller, so that the rotor and the impeller are suspended in air. The shaftless seal circulating pump has the advantages of low noise and good stability.
Description
technical field [0001] The invention belongs to the technical field of pump manufacturing and relates to a shaftless sealed circulation pump. Background technique [0002] Circulation pump refers to the pump for circulating liquid in the device for conveying reaction, absorption, separation, and regeneration of absorption liquid. The pump used to circulate the water is called a circulation pump. For example, the hot water in the water heating and heating pipeline is circulated by the circulation pump. [0003] Existing circulating pumps, such as Chinese patent documents disclose heating circulating pumps [Application No.: 201280013058.9; Application Publication No.: CN103429905A], which have a pump housing and a pump impeller set in the pump housing and driven by a motor , the stator of the electric motor is arranged in the motor casing connected with the pump casing; and the terminal box arranged on the motor casing is used for the electrical connection of the motor windin...
Claims
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IPC IPC(8): F04D13/06F04D29/62F04D29/66
Inventor 孙云平
Owner 浙江浪奇科技有限公司