Treatment of non-conforming products of Fangkuai boilers: 1. In the process of workpiece processing due to abnormal causes and quality standards do not meet the requirements of workpieces, are non-qualified products. Fill out the disqualification notice by the full-time inspector, state the condition of the non-qualified goods, report to the responsible engineer for quality inspection. The quality assurance engineer summons the quality inspection responsibility engineer and the related responsible personnel to analyze the abnormal quality, judge and make the decision decisively. The responsible engineer for quality inspection shall fill in the notice for handling non-conforming products, and the relevant responsible persons shall sign the notice, and upon approval by the quality assurance engineer, the inspection shall be carried out by full-time When the worker arrives at the shutdown procedure, the rework process for the welds of important workpieces and pressurized components shall be formulated according to the relevant regulations and approved in accordance with the procedure. 2. After repair, according to the three inspection procedures, fully meet the requirements, submitted to the full-time inspectors for inspection, confirmation, signature, continue to carry on the process flow. 3. Parts can not be used by reasonable repair, or lost value of use, parts can be judged as waste. Discarded products shall be filled out by the responsible engineer for quality inspection, and the responsible person shall sign the non-conforming product processing notice, and the quality assurance engineer shall sign the opinion before it is scrapped. 4. Non-conforming product handling After signing opinions on scrap column, full-time inspectors mark waste products with red paint on scrap workpieces, send them out of the site in time and store them in special waste areas. 5. Liability for non-conforming products: the successor shall be responsible for any failure to carry out the transition formalities. The operator shall be responsible for any non-conforming product produced by the operator with the help of the apprentice or other person, or because of the absence of drawings, the absence of a processing notice, and the violation of process discipline and operating procedures. The workshop and the company shall be punished according to the degree of responsibility and the size of the loss.
For new people to take over, we should note the following: First, check whether the diameter required pressure hot water boiler is a boiler body openings with the same atmosphere, in any condition, boiler water level in the table are zero pressure boiler. Therefore, before use, the user should check for new boilers, in particular, check whether the diameter to meet the requirements. Further, the communication tube should be prohibited in any valve provided to ensure smooth takeover. Generally, professional supply of pressure hot water boiler will spray "pressure boilers may not use pressure and hot water outlet temperature should not exceed 90 ℃" warning labels in the apparent position of the furnace. Second, installed by professionals, debugging initial purchase use, pressure hot water boiler manufacturer will recommend the installation and commissioning of the boiler by professionals to be responsible. Once operational, non-professionals are not allowed to change the structure of the boiler, free installation system piping, valves. At the same time, attention should be converted must not use pressure hot water boiler. Third, to ensure the safety of boiler accessory is a sensitive and reliable long-term use pressure hot water boiler you know, regularly fixed on the pressure gauge and thermometer professional check to ensure parity within the validity period.
Wuhan Port District Social Welfare Institute (apartments for the elderly) is invested by the government pension services, with a total construction area of 38,000 square meters, 532 beds, mainly adopt destitute persons, social support on behalf of the elderly. Hope to provide welfare to the elderly year-round 24-hour hot water, the original boiler equipment can not meet this demand, therefore, require additional purchase orphanage hot water boiler. After much investigation, in cooperation with the welfare determined fast boiler, provides three integrally condensing gas hot water boiler (WNS1.4-1.0 / 95/70-Y.Q) by a fast boiler.
A: the adaptability of the gas sources 1: Natural gas must depressurization gas regulator and gas regulator, the pressure before the Burner selected to meet the requirements before entering the burner, in order to work properly. 2: automatic adjustment operation of the boiler performance requirements: since a large gas consumption of the gas boiler, gas boiler as possible in order to reduce impact (sudden pressure regulator after the gas lift system during starting or stopping, sags ), controlling the gas boiler during operation must meet the following requirements: start (1) gas boiler must be adjusted to start at the minimum load of 30% (the rated load); (2) a gas boiler must be gradually reduced before shutdown load, rated load to be reduced before shutdown when the valve closes the solenoid 30%; (3) boilers can be automatically adjusted according to the boiler heat load during normal operation of the actual output stage operating conditions, automatically increasing demand for large Great demand hours automatically reduced, self-sustained heat balance of supply and demand, greatly reducing the number of start and stop the boiler; when reduced to 30% or less of the rated load, heat production is still greater than the output of the boiler, before proceeding down. (According to relevant statistics, the explosion occurred in the gas boiler start-up and shutdown of these two periods that occurred during ignition and fire in., A small gas boiler gas explosion has occurred 2/3 during ignition) (4) is provided above the automatic adjustment function is particularly important when a voltage regulator with many boilers, the boiler can start to avoid pressure fluctuations caused by stopping overpressure safety device or system boiler gas low-voltage protection action, the normal operation of the boiler shutdown. Two: for gas safety, gas boilers must have security facility 1: ignition control system for a gas boiler before ignition, purge the furnace and flue must be carefully excluded combustible gas furnace may be accumulated. A reasonable ignition process control systems to cope with the ignition process is automatically controlled fan only after the completion of furnace cleaning tasks to perform ignition; only when the ignition flame has been established (confirmed by a flame detector), and after a predetermined time has elapsed, a control valve main burner to open; ignition flame is automatically extinguished after a predetermined period of time; when the main flame could not be ignited within a predetermined period of time, the main burner can be automatically and quickly turn off the ignition flame is extinguished while gas boiler ignition procedures are generally monitored and controlled by a program controller. Control of the ignition process, the ignition before the total ventilation should be not less than 3 times the total volume from the furnace to the chimney population. 2: Safety Devices gas boiler is run prevent excessive wind load caused by a low flame, combustion automatic adjustment device should be installed on each boiler, intake air volume and gas supply gas boiler control linkage.
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