Bottom water drainage system of open type underwater concrete detection device

Abstract

The invention discloses a bottom water drainage system of an open type underwater concrete detection device. The bottom water drainage system comprises a water collection chamber, submersible pumps arranged on the outer side of the water collection chamber, and exhaust pipes connected to the water collection chamber, wherein the other ends of the exhaust pipes are connected with vacuum pumps; and the water collection chamber is arranged in a cavity at the bottom of a coffer, a water inlet is arranged at the lower part of the water collection chamber, and check valves are arranged at outlets of the submersible pumps. The number of the exhaust pipes is 2-5 and the number of the vacuum pumps connected with the exhaust pipes is 2-5 correspondingly. The number of the submersible pumps is 2-5, and blowdown submersible pumps are adopted. The bottom water drainage system has the advantages of simplicity and convenience for operation, reliability for operation and high efficiency, and is suitable to water depth up to more than ten meters, and even dozens of meters.

Description

technical field [0001] The invention relates to an underwater concrete anhydrous inspection and maintenance equipment, in particular to a bottom water drainage system of an open underwater concrete maintenance device. Background technique [0002] After retrieval, the technology most closely related to this technology is the utility model patent product "Underwater Concrete Engineering Waterless Maintenance Cofferdam" (patent number is ZL200420080320.4). This technology won the third prize of Jiangsu Provincial Water Conservancy Science and Technology Outstanding Achievement Award (the project name was changed to "Underwater Concrete Open Type Anhydrous Maintenance Device", the certificate number is 20052313), and after improvement, it won the second prize of Jiangsu Provincial Science and Technology Progress Award (project The name was changed to "Open Type Underwater Concrete Anhydrous Maintenance Device"); "DDC Open" published in "Governance of the Huaihe River" (No. 7, 2...

AI Technical Summary

Problems solved by technology

[0004] (1) Use a vacuum chamber for transition. When the water storage in a certain vacuum chamber reaches 80%, the water body needs to be emptied, and the operation is frequent;

[0005] (2) The gate valve of the drainage pipe is easy to be blocked, and maintenance is often required, which affects the efficiency;

[0006] (3) Although there are six sets of bottom water drainage systems, the total flow rate is small, and maintenance and crop rotation are required. The actual operating flow rate is even smaller, and the requirements for plugging inside and outside the cofferdam are relatively high;

[0007] (4) The exhaust system needs to reduce the air pressure to the extent that the accumulated water in the water collection chamber can be sucked into the vacuum chamber. The vacuum pump has high exhaust intensity and long duration, and has high requirements on the pressure resistance of related equipment, and the pressure difference is easy to lose;

[0008] (5) The applicable water depth is limited to the atmospheric pressure value, and it is generally only suitable for underwater concrete maintenance with a water depth of less than 9.0m;

[0009] (6) The original bottom water system is complicated

Images