ballast pump volute
A ballast pump and volute technology, applied in the field of liquid cargo loading and unloading system, can solve the problems of small structure size, processing method shaping, increase of product production cycle and production cost, etc., to reduce production cycle and production cost, and simple internal structure Effect
Active Publication Date: 2018-09-07
WUHAN MARINE MACHINERY PLANT
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Problems solved by technology
[0003] In the prior art, the water inlet section of the volute is generally designed as a trapezoidal section, and the junction between the bottom edge and the waist of the trapezoidal section is usually rounded. The volute with such a trapezoidal section has a more beautiful appearance, but its structural size is relatively small Small, complex spatial structure, many curved surfaces, difficult to form by ordinary processing methods, usually cast
[0004] However, for enterprises that produce ballast pumps in a single piece and in small batches, if the ballast pump volute is produced by casting, it will greatly increase the production cycle and production cost of the product
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[0030] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0031] The embodiment of the invention discloses a ballast pump volute, refer to figure 1 , figure 2 and image 3 , it includes interconnected volute chamber 1 and outlet section 2, wherein the volute chamber includes two relatively parallel first side plates 1.1 (combined with Figure 5 ) and a first enclosure 1.2 (combined Image 6 ), the two first side plates 1.1 are correspondingly provided with drainage holes 1.3, and the drainage holes 1.3 and the first side plate 1.1 are arranged eccentrically to form a centrifugal pump volute; the outer edges of the two first side plates 1.1 pass through the first coaming plate 1.2 connection, the first side plate 1.1 and the first coaming plate 1.2 are vertically arranged and welded, which...
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The invention discloses a spiral casing of a ballast pump, and belongs to the technical field of a liquid cargo loading and unloading system. The spiral casing comprises a spiral housing and a water outlet section which communicate with each other, wherein the spiral housing comprises a first surrounding plate and two first side plates which are oppositely and parallelly arranged; the first side plates and the first surrounding plate are perpendicularly arranged and are connected by welding; the first surrounding plate and the two first side plates define a water outlet matched with the water outlet section; and the water outlet section is welded at a water outlet of the spiral housing. According to the spiral casing of the ballast pump disclosed by the invention, the first side plates and the first surrounding plate of the spiral housing are perpendicularly arranged, so that the inner structure of the space of the spiral casing is simple; and welding forming can be adopted to produce the spiral casing , thereby shortening a production period and reducing production cost, and is especially suitable for single and small-batch ballast pump spiral casing production.
Description
technical field [0001] The invention relates to the technical field of liquid cargo loading and unloading systems, in particular to a ballast pump volute. Background technique [0002] The ballast pump is the main equipment of the marine ballast system, and its main function is to complete the injection and discharge of ballast water. The volute is an important hydraulic component of the ballast pump, and its main function is to convert the kinetic energy of the conveying medium into pressure energy. [0003] In the prior art, the water inlet section of the volute is generally designed as a trapezoidal section, and the connection between the bottom edge and the waist of the trapezoidal section is usually rounded. The volute with such a trapezoidal section is more beautiful in appearance, but its structural size is relatively small Small, complex spatial structure, many curved surfaces, it is difficult to form by ordinary processing methods, usually by casting. [0004] How...
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IPC IPC(8): F04D29/42
CPCF04D29/426
Inventor 罗力沈飞杨勤李战
Owner WUHAN MARINE MACHINERY PLANT