Shield slurry conveying pump
A slurry pump and shield technology, which is applied to pumps, pump components, non-displacement pumps, etc., can solve the problems of short service life and poor sealing performance of shield slurry pumps, so as to improve service life and reduce processing difficulty. and processing costs, the effect of improving work efficiency
Pending Publication Date: 2022-04-08
强大泵业集团行唐泵业有限公司
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The purpose of the present invention is to provide a shield slurry pump, which aims to solve the problems of poor sealing performance and short service life of the current shield slurry pump
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0031] see Figure 1 to Figure 6 , the shield slurry pump provided by the present invention will now be described. The shield slurry delivery pump includes a pump casing 10, a pump cover 20, a connection structure and a shaft seal structure; the inlet and outlet of the pump casing 10 are provided with split flanges 11; the front and rear ends of the pump casing 10 are provided with pump covers 20. The connecting structure includes extension arms arranged at the front and rear ends of the pump casing 10, connecting arms arranged outside the pump cover 20 and attach...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a shield slurry conveying pump, which belongs to the technical field of pumps, and comprises a pump shell, a pump cover, a connecting structure and a shaft seal structure, an inlet and an outlet of the pump shell are provided with split flanges; the connecting structure comprises extension arms arranged at the front end and the rear end of the pump shell, a connecting arm arranged on the outer side of the pump cover and attached to the extension arms, and a plurality of sealing clamping pieces. The shaft seal structure comprises a front water seal ring, a packing pressing ring and a packing box, the packing box is arranged on the outer sides of the front water seal ring and the packing pressing ring, a sealing cavity is defined by the packing box, the front water seal ring and the packing pressing ring, packing is arranged in the sealing cavity, and a ceramic spraying layer is arranged on the inner side of the packing. According to the shield slurry conveying pump, only the sealing clamping piece and the split flange need to be manufactured independently, punching in the pump shell and the pump cover is avoided, and the machining difficulty and the machining cost are reduced; and meanwhile, the filler is adopted for sealing, and the ceramic spraying layer is arranged between the filler and the pump shaft, so that the smoothness and wear resistance of the pump shaft are improved, and the filler replacement frequency is reduced.
Description
technical field [0001] The invention belongs to the technical field of pumps, and more specifically relates to a shield slurry delivery pump. Background technique [0002] During tunnel construction, the soil residue excavated by the balance shield machine is transported to the ground through the pipe section by the shield slurry pump. The basic structure of the current shield slurry pump is composed of rotor components such as pump casing, pump shaft, bearing box, bracket and impeller in the pump casing. The power includes motor, counter wheel or belt pulley coupling, etc., and its working principle Yes: When the impeller rotates rapidly, the blades make the medium rotate quickly, and the rotating medium flies out of the impeller under the action of centrifugal force. After the medium in the pump is thrown out, the central part of the impeller forms a vacuum area, and the medium is in the atmosphere. Under the action of pressure (or water pressure), it is pressed into the ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): F04D7/04F04D29/02F04D29/12F04D29/24F04D29/42F04D29/44F04D29/62E21D11/10
Inventor 张文波蔺延德
Owner 强大泵业集团行唐泵业有限公司