Construction pollution of Hengxin Diving Company Water pipe Commitment of road blocking project:***
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1. If the customer makes a phone call, he will definitely arrive at the construction site within 24 hours.
2. The construction of sewage pipe plugging is fast, regardless of the pipe diameter, it only takes 2 hours to plug a pipe opening.
3. Sewage pipeline plugging measures can be divided into several types; Customers can choose one: PVC Rubber airbag plugging, underwater wall building plugging steel plate Plugging, dry mix plugging, concrete mold bag plugging.
4. If the project is our labor contract, we will prepare and implement the construction safety measures. If there are any safety problems and responsibilities in the process of the project, we will bear them, which has nothing to do with Party A.
Steps before sewage pipe plugging construction: divers first dive to the position of the pipe to be plugged, check and explore the diameter of the pipe to be plugged, what material the pipe is, whether there is sludge and garbage inside the pipe, measure the water depth of the detection well, and then develop a specific construction plan for plugging sewage pipes.
Safety measures for pipeline sealing airbag construction and diving operation
1、 Equipment and personnel:
A. Equipment (1) light diving equipment E300; (2) 0.35 cubic meters Air compressor One; (3) Two sets of underwater interphone systems; (4) One bottle of medical oxygen; (5) Two PVC air bags are specially used for pipes; (6) The owner needs to provide 380 V three-phase power supply;
B. Two divers; 2. One diving assistant; 3. One person in charge of the site
2、 Preparatory work
1. The diving air compressor, diving equipment, underwater walkie talkie and airbag used for installation used on the site shall be debugged and inspected before trial use, and the equipment used shall be subject to good performance.
3、 Pipeline airbag installation process and construction instructions
Through the work experience accumulated in the past construction process, our professional technicians have discussed and determined the following process:
1. Connect the three-phase power supply, commission the air compressor and check whether the air pressure gauge of the air compressor is normal;
2. The oxygen meter for medical oxygen is connected to the air compressor and used as an emergency gas source;
3. The diver shall wear diving equipment, adjust the intercom system, enter the pipeline for the previous underwater exploration, check whether there are sundries and burrs in the pipeline, and clean it to meet the airbag installation conditions;
4. Check whether the surface of the airbag is clean, whether there is dirt attached, and whether it is intact. Fill a small amount of air to check whether the accessories and the airbag have air leaks. It is confirmed that it is normal before entering the pipeline for plugging operation.
5. Inspection of pipeline: before plugging, check whether the inner wall of the pipeline is flat and smooth, and whether there are protruding burrs, glass, stones and other sharp objects. If there are any, remove them immediately to avoid puncturing the airbag. After the airbag is placed in the pipeline, it should be placed horizontally, not twisted, so as not to nest the gas and explode the airbag.
6. Make airbag accessories connection and air leakage inspection: first connect the auxiliary inflation accessories of the walrus pipe water plugging airbag, and then make tools to check whether there is any leakage after the connection. Extend the water blocking airbag of the pipeline, connect it with accessories for inflation, and inflate it until it is basically full. When the pointer of the pressure gauge reaches 0.03MPA, close the air stop valve, evenly apply soapy water on the surface of the airbag, and observe whether there is any air leakage.
7. Discharge the air in the water blocking air bag of the connected pipe, roll it vertically, and put it through the inspection port. After reaching the position of * * *, the air bag can be inflated through the leather tube to the specified service pressure. When inflating, keep the pressure in the airbag uniform, and inflate slowly. Check whether the pressure gauge rises or not. If the pressure gauge rises rapidly, it means that the inflation is too fast. At this time, slow down the inflation speed, and slightly tighten the air stop valve to reduce the air intake speed. Otherwise, if the speed is too fast, it is likely to explode the airbag if the pressure is exceeded quickly.
8. After use, the surface of the airbag shall be cleaned immediately, and it can be put into storage after checking that there is no attachment on the surface of the airbag.
9. After the air bag is bound, the diver will send the air bag to the ******* point of the owner's office, untie the bound rope and recycle it;
10. Inflate the airbag with an air compressor to * * * air pressure;
The company has always adhered to the quality policy of "scientific management, high-tech technology, high-quality engineering, and satisfactory service", established a scientific, reasonable and perfect management network and successfully passed GB/T 19001-2008/ISO9001:2008; GB/T 24001-2004/ISO14001：2004； 2004 and GB/T 28001-2011 system certification. It has been rated as "Advanced Unit of Water Search and Rescue" by Shanghai, Jiangsu and other maritime departments for many times; National engineering quality, construction safety, Yancheng City level high enterprise.
At present, it has more than 40 professional and technical personnel, including more than 11 people with medium and high professional titles, with fixed assets of nearly 6 million yuan. The comprehensive strength ranks first among domestic peers (except the subordinate Salvage Bureau). The company has 2 branches, 5 offices (liaison offices), 6 functional departments and several project departments. The company has 3 engineering ships of all kinds. The business areas are located in the middle and lower reaches of the Yangtze River and other inland rivers and coastal areas in China. Mainly engaged in: wharf, breakwater, dock dock and slipway engineering, ship lock, ship lift engineering, waterway engineering, dredging or land reclamation engineering, port yard engineering, embankment and revetment engineering, underwater reef blasting, reef clearing engineering, and underwater foundation and foundation, earthwork, surveying, marine lighthouse, navigation mark and channelization engineering, warning signs, trestles, artificial islands and platforms Coastal and offshore engineering, port loading and unloading equipment installation, navigation construction equipment installation, underwater excavation and obstacle clearing, dredging engineering, wreck salvage and other engineering businesses. It enjoys high reputation in coastal ports and ports in the middle and lower reaches of the Yangtze River.
The company is now taking the opportunity of creating integrity and civilization, taking advantage of the tide of economic transformation, and using the concept of large-scale, diversified and modern enterprise management, to move towards an integrated group based on rivers and facing the sea.
Nationwide construction - unlimited areas - excellent equipment - superior staff - serious attitude - technology in place - measures guarantee - strict management - all-round diving service within 60 meters
Since its establishment, the company has adhered to the principle of people first, honesty and integrity, and won customers by virtue of its work style of high quality, efficiency and credibility. It has undertaken urgent, difficult, dangerous and heavy construction tasks for many times, salvaged more than 60 sunken ships and a number of submerged materials, and has successively participated in the underwater pipe laying works of water intake pipelines of more than 50 power plants, including the Second and Third Nanjing Yangtze River Bridges, Shanghai Donghai Bridge, Hangzhou Bay Sea Crossing Bridge, Nantong Huaneng, Suzhou Huaneng, etc. Over the years, the projects undertaken by the company have been well received by the owners.
Jiangsu Hengxin Diving Engineering Co., Ltd
General Manager: Shen Chao
Hotline:***
Telephone:***
