Cantilever type explosion-proof high-speed low-temperature pump
A cryogenic pump and cantilever type technology, applied in the field of cantilever explosion-proof high-speed cryogenic pumps, can solve problems such as difficulty in user acceptance, limited use range, and high price, and achieve the effects of light weight, low production cost, and easy assembly
Active Publication Date: 2016-02-24
CSIC CHONGQING INTELLIGENT EQUIP ENG DESIGN
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Problems solved by technology
[0002] Pumps for conveying low-temperature flammable and explosive media must meet the design requirements of explosion-proof and reliable sealing, as well as high speed and large flow. Pumps with general structures are far from meeting the requirements.
At present, the flammable and explosive medium cryopumps used in China generally rely on imports, which are not only expensive and difficult for users to accept, but also large in size and limited in scope of use
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[0015] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0016] Such as figure 1 As shown, the present invention is made up of five major parts such as motor 1, gearbox 2, bracket assembly 3, sealing device 4 and centrifugal pump 5. Wherein, the motor 1 is an explosion-proof motor, and the output shaft of the motor 1 protrudes vertically upwards. A gearbox 2 is arranged above the motor 1, and the motor 1 is fixedly connected to the casing of the gearbox 2 through a built-in flange. The output shaft of the motor 1 extends into the gearbox 2, and the large gear 21 in the gearbox 2 is sleeved on the output shaft of the motor 1.
[0017] Such as figure 1 As shown, the centrifugal pump 5 is supported by the bracket assembly 3 on the gearbox 2 , and the centrifugal pump 5 is located above the bracket assembly 3 . Bracket assembly 3 is made of supporting shell 31, connecting arm 32, connecting plate 33 and pressure pl...
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The invention discloses a cantilever type explosion-proof high-speed low-temperature pump. A motor is an explosion-proof motor, and an output shaft of the motor vertically extends up into a speed changing box. The box body of the speed changing box is fixed with the motor, and the output shaft of the motor is sleeved with a big gear in the speed changing box. The big gear is meshed with a small gear, and the small gear is mounted at the lower end of a main shaft of a centrifugal pump. The whole centrifugal pump is supported on the speed changing box through a support assembly, and the main shaft is supported with the support assembly through a bearing. The upper end of the main shaft penetrates through the support assembly and extends into a volute of the centrifugal pump, and the main shaft is sleeved with an impeller in the volute. A sealing device is arranged under the impeller and mounted between the volute of the centrifugal pump and the main shaft. The cantilever type explosion-proof high-speed low-temperature pump has the advantages of being reasonable in design, simple and compact in structure, small in size, light in weight, easy to assembly and low in production cost, has the characteristics of high rotation speed, high flow, high sealing and high intensity, is safe and reliable, and can be effectively applied to the field of transmission of low-temperature combustible media.
Description
technical field [0001] The invention relates to a cantilever type explosion-proof high-speed cryogenic pump, which is used for conveying low-temperature inflammable and explosive media. Background technique [0002] Pumps for conveying low-temperature, flammable and explosive media must not only meet the design requirements of explosion-proof and reliable sealing, but also meet the design requirements of high speed and high flow rate. Pumps with general structures are far from meeting the requirements. At present, the flammable and explosive medium cryopumps used in China generally rely on imports, which are not only expensive and difficult for users to accept, but also large in size and limited in scope of use. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a cantilever type explosion-proof high-speed cryogenic pump with simple structure and compact structure. [0004] The technical solution of the present inv...
Claims
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IPC IPC(8): F04D7/02F04D13/06F04D29/10
CPCF04D7/02F04D13/06F04D29/106
Inventor 冀庆康刘保岩李泽军王忠江黄柯玮刘海川龙林余东骏
Owner CSIC CHONGQING INTELLIGENT EQUIP ENG DESIGN