Unlock instant, AI-driven research and patent intelligence for your innovation.

Water pumping energy storage unit safety structure

A pumped-storage unit and safety structure technology, which is applied in the directions of hydropower generation, mechanical equipment, engine components, etc., can solve the problem of limited number of bolts, the safety factor of top cover bolts cannot be further improved, and the safety and reliability of pumped-storage units can be reduced. and other issues to achieve the effect of improving safety and reliability

Inactive Publication Date: 2019-06-21
HARBIN ELECTRIC MASCH CO LTD +1
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing pumped storage unit is limited by the bolting space, and the number of bolts that can be arranged is limited, so that the safety factor of the top cover fixing bolts cannot be further improved, thereby reducing the safety and reliability of the pumped storage unit

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Water pumping energy storage unit safety structure
  • Water pumping energy storage unit safety structure
  • Water pumping energy storage unit safety structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] like Figure 2-Figure 4 As shown, a pumped storage unit safety structure, the operation steps are as follows: the threaded section of the reinforcing bolt 1 is screwed into the inner thread of the annular structure of the upper ring plate 4 of the seat ring belt cone frustum, and the cylindrical section of the reinforcing bolt 1 enters the top cover 3 The bottom of the blind hole 9 of the lower flange is fully combined with it. The cylindrical section of the reinforcing bolt 1 that enters the blind hole 9 of the lower flange of the top cover 3 is greater than one thread diameter. The front section of the reinforcing bolt 1 is a cylinder and the rear section is a thread. A through hole 8 is machined on the annular structure on the ring plate 4 on the upper conical frustum of the seat ring, and the diameter of the through hole 8 is the same as the diameter of the cylindrical section of the reinforcing bolt 1 . A blind hole 9 with the same diameter as the through hole 8 ...

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

No PUM Login to View More

Abstract

The invention discloses a water pumping energy storage unit safety structure. An annular structure is additionally arranged on an annular plate on a seat ring, so that a cylindrical section of a reinforcing bolt can tightly connect an upper ring plate of the seat ring with a lower flange of a top cover together; the defect that in the prior art, due to the fact that the top cover of the water pumping energy storage unit is large in influence on the closing space, a closing bolt is limited so that the safety coefficient can not be further improved is overcome; and the problem that the safety coefficient of the bolt connection between the unit top cover and the seat ring in the traditional design cannot be further improved is solved, and the safety and reliability of the water pumping energystorage unit is improved.

Description

technical field [0001] The invention relates to a safety structure of a pumped-storage unit. Background technique [0002] The pumped storage unit is composed of a pump turbine, a generator motor and an automatic control system. It integrates the functions of pumping and power generation. It operates in both directions with high water head and high speed, and the working condition conversion is complicated. Therefore, the stability and safety requirements of the unit are extremely high, and the joint of the bolts of the pumped storage unit is particularly important. The current pumped-storage unit is limited by the bolt grip space, and the number of bolts that can be arranged is limited, so that the safety factor of the top cover grip bolt cannot be further improved, thereby reducing the safety and reliability of the pumped-storage unit. SUMMARY OF THE INVENTION [0003] The invention is a safety structure of a pumped-storage unit capable of improving the safety factor of...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F03B13/06
CPCY02E10/20Y02E60/16
Inventor 李正王永潭路振刚赵越孟繁欣王振羽葛光男韩四保
Owner HARBIN ELECTRIC MASCH CO LTD