gas fired vacuum hot water boilers manufacturers

gas fired vacuum hot water boilers manufacturers

Affect the operation of the vacuum boiler vacuum boiler of the four factors mainly used for civilian heating, mainly used in residential, home, hotels and other densely populated places, but there are always some of the equipment has been hampered its effectiveness, not so warm, the following tell you about the factors that affect the operation of the device: 1, boiler and valves, meters there is no leak, there are currently includes inlet valve and instrument can guarantee no leakage occurs within 3 years. 2, the load can not have the mutation, changing the boiler load is normal for the boiler, the boiler can meet the general load regulation thirty percent to ninety-nine percent. 3, vacuum pump, three-way solenoid valve is working properly, since the vacuum pump, three-way solenoid valve is not run frequently, imported and seizure operation also prone to failure. 4, control whether or part failure, boiler controls and negative pressure, pressure controller can also occur in the operation of the failure is inevitable, such as the failure rate is even higher domestic controller. 5, the control section airtightness of the boiler should check whether the normal vacuum pump, the three-way solenoid valve is normal, check load changes, if the check is normal and negative pressure controller settings. 6, after everything is normal vacuum degree of recovery boilers still function properly, or to check all aspects of the maintenance shutdown. The actual operation of the vacuum boiler breakdown maintenance rate is higher than the pressurized steam boiler, a steam boiler control requirements than. Vacuum is the main indicators of the stability of the vacuum boiler, it is generally not hot equipment, it is ineffective this is a problem, if we find a problem we should immediately go to repair, to spend the winter cold to make themselves warm as soon as possible device.

This year, located in Guizhou Tongzi County and located in Heilongjiang Harbin has two boiler explosions accident, after investigation, the accident was produced in the installation link, there are companies the main responsibility for the implementation of incomplete installation link, confusion installation and construction management , unauthorized commissioning, pressure testing irregularities, installation supervision and inspection to ensure the role of the missing and other problems, leading to a boiler explosion occurs, causing adverse effects for the personal and property safety.

Market supervision bureau to draw lessons from the accident, in order to avoid explosion due to boiler installation problem from occurring again, issued a notice warning of the risk of boiler installation link. Details are as follows:

The boiler safety related technical specifications, the entire boiler manufacturing unit can be installed (set) mounted boiler units produced. Boiler manufacturing unit undertake installation work, should meet the following requirements:

The manufacturer should be dedicated departments boiler installation work, set up to cover the boiler installation quality management system, equipped with the necessary resources to installation conditions. Boiler manufacturing units should strengthen sales management, through specified in the sales contract if the terms of the unit responsible for the installation of boilers, etc., to prevent sales by the manufacturing license qualification units or organizations which are not allowed to undertake the unit personnel to carry out boiler installation work. Where specified in the contract manufacturing sales unit responsible for the installation, on-site installation work must be sent by the company to complete the installation personnel shall not be subcontracted to other units (safety specifications are allowed in the assigned project except). Indicate the sales contract to this unit responsible for the installation of the boiler, installation of the unit must have the appropriate license installed. Responsible for the installation of the units should strengthen safety education and skills training for installation personnel. Find that the installation quality and safety aspects of the occurrence of an accident or appears illegal activities, special equipment safety supervision institutions should be punished according to the law to install the unit.

Boiler installation units should strictly enforce the relevant safety standards and technical specifications to ensure the quality and safety of boiler installation, the unit should be installed at the installation site set up signs stating the name of the license holder of the certificate, license project, license number and items the person in charge, who is responsible for safety and quality, commissioning personnel, supervisory inspector's name, unit and telephone. Boiler commissioning and commissioning, operation must be performed by a licensed boiler operator. Before the boiler installation, inspection and acceptance by the relevant formally delivered, installed units should be hung in a prominent position boilers warning signs with the words "banned" and take effective protection and quarantine measures to ensure that the boiler system can not be ignited or boost . In addition to the need to debug, the cabinet can not be energized, the fuel valve is in a closed state should be like. Use blanking panels of the boiler pressure test, the test should be removed immediately after the end of the Blind.

Boiler boiler installation situation before construction units should be installed by informing the local special equipment safety supervision and management departments, and submit an application to install Supervision, Inspection and supervisory inspection agency. Where Supervision and Inspection uncommitted boiler installation project may not start.

Supervisory inspection agency should be strictly in accordance with the "Boiler Inspection Rules", according to the supervisory inspection protocol and progress of the project requirements, arrangements for the implementation of the supervisory inspector boiler installation supervisory inspection. A class of control points, the supervisory inspector must be at the scene confirmed to meet the requirements, the installation unit in order to continue with the work. Supervisory inspector shall, at the start that is to the construction site, in the whole process of site supervision to pressure test, shall not be used after the witness confirmed that and how do fill supervisory inspection program Supervision, Inspection and replacement process when the boiler pressure test.

Boiler manufacturing unit in particular is responsible for boiler installation of manufacturing units and boiler installation supervisory inspection agency, should an accident lessons learned, giving top priority to further implement the main responsibility and checks responsibility, strengthen the boiler installation management to ensure the quality of the installation work, protect the boiler safety.

In the design of fired vacuum hot water boilers manufacturers, the problem should be noted that the heat medium water vacuum hot water boiler, the negative pressure conditions at the maximum temperature is about 93 deg.] C, the maximum temperature of the boiler water at about 80 ℃, the water temperature and therefore require more when high, the water temperature should be used in other types of high boiler; 2) vacuum hot water boiler heat exchanger tube diameter is small, generally about 10 ~, while not fouling the inner pipe, to prevent impurities clogging the tube system , other sources should be installed or filter before the boiler return pipe inlet; 3) vacuum hot water boiler design, according to the system pressure, the pressure parameter determining unit, to ensure that the working pressure of the pressure unit to meet the system requirements. Pressure relief valve is provided at the interface of the vacuum hot water boiler system should be designed in which the unit set pressure must be less than the maximum allowable pressure, the pressure relief valve unit and the valve shall be fitted to the connecting portion based on such a design configuration of the vacuum hot water boiler , as compared with the vacuum hot water boiler pressure hot water boiler, has its own unique advantages, table 1 Comparative characteristic of both systems were schemes.

Pressure boilers and boiler vacuum different places which have a client recently found our quick boiler, boiler refer to the difference between the atmospheric and vacuum boilers do? To address this issue, we give a brief overview of the difference between the two. A, different security present, primarily professional fired vacuum hot water boilers manufacturers hot water boiler, a hot water boiler internal negative pressure can achieve the purpose of rapid combustion temperature, while by changing the configuration of a vacuum hot water boiler may be related to atmospheric hot water boiler. So security is more obvious than ever. The pressure hot water boiler in good use, only in part to the use of ventilation, so particularly safe and reliable pressure hot water boiler. Second, due to the small amount of water heating efficiency of different vacuum hot water boiler, a small amount of water, repeated heating cycles required to the burner, and a large container atmospheric hot water boiler with a single opening to achieve better burner heating effect can be effectively heating the circulating water. In the hot water boiler. Thermal efficiency is higher than the vacuum pressure hot water boiler hot water boiler. . Third, the complexity of the equipment in order to ensure different vacuum, vacuum hot water boiler must be installed infrastructure series a vacuum pump, but the average hot water boiler pressure control device need not be employed to maintain the vacuum. Therefore, no complicated control equipment required personnel to operate more simple, the complexity of the boiler equipment in use also have greater advantages, meet the needs of more consumers. The two boiler is very different in the use, safety, thermal efficiency and complexity of the equipment is different, so if you want to install the boiler-related equipment, the boiler can choose different devices according to your need for hot water boiler.

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