Users who often use hot water boiler should know that it is equipped with a lot of important parts, the maintenance and management of these parts can not be ignored, have a great impact on the daily work of hot water boiler. If you’re not sure how to manage your maintenance before, this article will help.
A. If there is any abnormal phenomenon in the hot water boiler equipment, it shall stop using immediately, report to the competent authority in time, and write down the cause and process of the fault.
B. The hot water boiler equipment shall be inspected and debugged, and shall meet the performance and technical requirements of the equipment before being put into use. The instruments and equipment in use shall be verified by the higher metrology department on schedule, and shall be used within the valid period of qualification.
C. The use and storage of the hot water boiler test instruments, equipment and appliances shall be the responsibility of the test operator. No other person shall operate or touch them.
D. After each operation of the hot water boiler, the operator must clean the equipment and keep it clean and in good condition. The equipment should be put in order for the next operation.
E. The hot water boiler always keeps the indoor environment clean, shockproof, dustproof and noise-proof. No smoking is allowed.
F. The hot water boiler shall be maintained according to the operation instructions of the equipment, and the equipment files shall be established for the repair and verification of each instrument and equipment.
The above content is all hot water boiler users must pay attention to the part, in the future if you have any questions small make up will not repeat.
The hot water boiler has a complete set of automatic control system with various safety protection devices, such as water protection, overpressure and flameout protection. The structure USES efficient heat transfer components, such as corrugated furnaces and threaded tubes, to enhance heat transfer and save energy. The boiler is 90% efficient. Overall fast design compact, compact and easy to install. The use of colored steel plates and stainless steel plates makes the whole boiler look beautiful and harmonious.
(1) before the sewage work, the boiler water level should be adjusted to the normal water level (beyond the abuse water level), and strictly monitored during the treatment process to prevent water shortage.
(2) after discharging for a period of time, check whether the temperature of the blowdown pipe is abnormal and whether the blowdown valve is leaking. If so, please deal with it promptly.
(3) in the hot water boiler sewage pumping work, should follow the three principles of frequent discharge, pollution reduction, uniform sewage discharge, every shift at least one discharge, so as to avoid tube explosion and serious problems.
(4) the sewage from the hot water boiler shall be carried out under the low load condition and normal working pressure of the boiler. The switch should be operated multiple times to ensure better drainage and thoroughness to avoid residues that affect sewage discharge.
Hot water boiler schematics are widely used in domestic and industrial production. The products on the market can be said to be very diverse. This allows consumers to choose how to choose and choose. In front of us, this requires us to brighten our eyes when buying a gas boiler, choose the performance of a suitable hot water boiler, and then measure the performance of a small furnace.
In winter heating and domestic hot water, the schematic diagram of the hot water boiler is a clean boiler for heating and hot water. Hot water boilers can be said to be indispensable for boiler heating products, and an important part of HVAC systems. We use circulating water in hot water boiler heating pipes.
Hot water boiler schematic performance indicators: We mainly choose the service and power selection of hot water boilers. Most people think that every supplier is persuasive in expressing their views. They are all promises of after-sales service, but not many promises are actually fulfilled. The hot water boiler can be thermostatically controlled and can be turned on and off periodically. It can be adjusted at a reasonable temperature of 40 ° C-80 ° C. It is more economical to burn under the same conditions than coal. The multiple protection is very safe, with double leakage protection, anti-dry burning protection, no indoor air pollution, over-temperature alarm, high efficiency for 1 minute, hot water circulation from the liner to the radiator.
Hot water boilers have multiple power options. The power of choice is huge, wasting money and energy. The selected power is small, the capital and energy waste is small, but the use requirements are higher than 70 ° C, and the radiator temperature is higher than 75 ° C for 30 minutes. The pressure-free water heating cycle adopts a multi-band, non-drying, and pressure-free water heating cycle to meet the heating requirements of various room types, avoiding the standard setting of the drying hot water boiler during heating and use, and fully adopting the corresponding method in the specific use process. . This is the main content of the design table, which shows the weight in a particular winter heating. I hope everyone knows something about gas hot water boilers.
Hot water boiler pressure gauges are generally used for boiler pressure measurement. Its design and installation generally need to consider several aspects:
(1) Each hot water boiler shall be equipped with a pressure gauge directly connected to the steam space of the drum. Before the feed water regulating valve, a pressure gauge should be installed between the separable economizer outlet, the superheater outlet and the main steam valve.
(2) Hot water boiler or pressure vessel whose working medium is high-temperature steam. The pressure pipe should be equipped with a water storage elbow to allow the steam to condense in this section of the elbow. The components in the table are overheated and deformed, which affects the accuracy of the pressure gauge. When the steel pipe for water storage elbow is used, its inner diameter should not be less than 10mm. A three-way cock should be installed between the pressure gauge and the water storage elbow, so that the pipeline can be purged, replaced, and the pressure gauge calibrated.
(3) According to the allowable pressure of the hot water boiler or pressure vessel, draw a warning red line on the dial of the pressure gauge. However, the warning red line should not be drawn on the glass of the pressure gauge, so as to avoid the illusion of glass rotation and cause accidents.
(4) For pressure vessels with high temperature, strong corrosiveness or high viscosity medium, the isolation pipeline filled with liquid should be installed on the connecting pipe between the pressure gauge and the container, or a corrugated flat film pressure gauge should be used. .
(5) The location of the pressure gauge should be adequately illuminated to facilitate the operator’s observation and inspection. Protect the pressure gauge from radiant heat, low temperature, and vibration.
(6) In order to facilitate the replacement and calibration of the pressure gauge, a three-way cock should be installed between the pressure gauge and the pressure-bearing equipment. The cock should be installed on the vertical pipe section, and there should be an opening mark and a locking device.
As a manufacturer of biomass hot water boilers, boiler shutdown can be divided into normal shutdown and abnormal shutdown. The hot water boiler is equipped with a computer-type boiling water boiler controller. All functions are stored on a smart chip, which realizes the boiler’s intelligence, digitization, automation, and humanization. The boiler intelligently controls the water temperature and automatically stops heating when the water temperature is reached; The water temperature is displayed, and the furnace water temperature is clear at a glance. Normal shutdown refers to the shutdown of the biomass hot water boiler when it is not in use under normal operating conditions, and non-normal shutdown refers to the shutdown of the boiler when an accident occurs. The following is the classification of the biomass hot water boiler that was analyzed by Zozen Boilers:
A steam boiler is an energy conversion device. The energy input to the boiler is in the form of chemical energy, electrical energy, and thermal energy of high-temperature flue gas. After the boiler is converted, it outputs steam, high-temperature water, or organic heat with a certain amount of thermal energy. Normal shutdown of biomass hot water boiler: The continuity of boiler equipment operation is limited, and unplanned shutdown inspection must be performed. In addition, due to the reduction of external load, according to the scheduling plan, some boilers should also be shut down and switched to standby. These boilers are in a normal shutdown state.
Abnormal shutdown: can be divided into emergency shutdown and fault shutdown:
(1) When the biomass hot water boiler equipment has an accident due to internal or external reasons, when the boiler must be shut down, it is called an accident shutdown. According to the severity of the accident, when the boiler operation needs to be stopped immediately, it is called emergency shutdown;
(2) If the accident is too serious, but in order to ensure the safety of the boiler equipment, it is not allowed to continue long-term operation, it must be stopped for a certain period of time, which is a fault shutdown. Biomass boilers: horizontal biomass boilers, vertical biomass boilers. Biomass heat-conducting oil furnace, biomass steam boiler, biomass hot water boiler, biomass heat-conducting oil furnace.
The above is the classification of the biomass hot water boiler shut-down classification analyzed by Zozen Boilers. It uses a unique secondary air structure. The air field in the furnace is effectively improved, and the hot particles are directed to the front arch, which is beneficial to the ignition of the fuel. At the same time, the residence time of the fuel in the furnace is extended, and the adaptability and utilization rate of the fuel are improved.
Oil-fired hot water boiler is a boiler equipment that uses oil as fuel to heat water through a burner to provide heating and provide hot water for living and bathing. This oil-fired hot water boiler has high intelligence, fast heating, low noise and no dust. It is an economical hot-selling boiler variety that is very suitable for China’s national conditions.
This oil-fired hot water boiler can meet heating and hot water supply alone. If a heat exchanger is added to the pipeline system, the oil-fired hot water boiler can meet both heating and bathing requirements:
Advantages of oil-fired hot water boiler boiler whole body insulation
White color plate packaging, beautiful and generous, good sealability, rust resistance, mechatronics, small footprint, easy to use. The oil-fired hot water boiler uses glass wool as a whole body insulation, light weight, good insulation effect, and low heat loss. Oil-fired hot water boilers are widely used in supermarkets, hospitals, schools, hotels, communities, bathing centers, etc., and provide users with automatic heating or bath water and domestic hot water.
The schematic diagram of the oil-fired hot water boiler is a pressure vessel. In order to avoid generating excessive steam pressure during operation, even if the pressure range of the vessel is exceeded, or an operation error is caused due to severe water shortage in the oil-fired hot water boiler, the oil-fired hot water boiler may explode.
In order to ensure the safe operation of the oil-fired boiler schematic diagram, the monitoring of the oil-fired boiler has been strengthened. Therefore, oil-fired boilers should be equipped with pressure gauges, water level gauges (water level alarms), safety valves, gas leak detectors, thermometers, etc. Safety accessories.
The pressure gauge is mainly used to indicate the medium pressure state of the oil-fired hot water boiler schematic diagram, and is one of the important instruments.
The water level gauge is a meter installed on the oil-fired boiler to indicate the water level in the water tank. Furnace staff can monitor the water level changes at any time to determine the amount of water in the stove.
The main function of the safety valve is to prevent the pressurized low-nitrogen condensing boiler (or other pressurized container) from operating within a predetermined pressure range. Once the set pressure is exceeded, the safety valve will open immediately. Emergency steam (water) can quickly reduce the pressure in the furnace or system to ensure that the condensing hot water boiler operates at a safe pressure.
Safety reasons: Hot water boilers are special needs equipment and are mechatronic products. If the inspection and maintenance are not timely, the pipeline will deteriorate; the oil circuit, oil pump and oil nozzle are blocked and worn; the gas engine valve chamber is not well sealed and leaking. Leaving many security risks.
Second, the reasons for energy saving: often use this instrument for gas detection to make it fully and reasonably burn, which can achieve energy saving effects.
Thirty-three, environmental reasons: using instruments for testing, raising emission standards, and contributing to the prevention of environmental pollution.
Around us, a variety of new equipment, one after another, has brought convenience to our lives. Among the many new equipment, thermal energy equipment stands out and is loved by everyone, such as coal-fired steam boilers, gas atmospheric hot water boilers, etc. Let ’s say gas atmospheric hot water boilers. When people use them, they use water Processing, why is this? Let’s take a look below.
Why should water for gas atmospheric hot water boiler be treated?
Why use water at atmospheric pressure hot water boiler? Actually, this mainly comes from the following materials:
1. Suspended substances.的 The particle diameter of these materials is generally very small. However, these impurities will be deposited in the drum, which will make the heat transfer situation worse and cause the metal to be damaged due to overheating.
2. Colloidal substances. The diameter of colloidal particles is larger than the diameter of suspended particles. If it is not removed, if it enters the boiler, it will cause the boiler to form hard scale that is difficult to remove, and will cause a large amount of foam in the boiler water in the steam boiler, causing the steam and water to co-tap. .
3. Dissolved substances. The dissolved substances in the water are all in the state of molecules or ions, and the particle size is below 10-6mm. If these impurities enter the boiler, it will cause boiler scaling, corrosion and contamination of the steam quality, make the boiler overheated and deformed, and even cause tube blocking. Major accidents such as pipe bursts. At the same time shorten the boiler life, waste fuel and reduce the thermal efficiency of the steam boiler.
The hot water boiler system has large resistance and insufficient air supply. The reason is that the fuel particles are mixed, the pulverized coal occupies the lump coal gap, and it is squeezed by the gate when entering the grate. The gas hot water boiler has the remarkable features of environmental protection, energy saving, safety, and automatic operation. It is very convenient to use. In addition, due to the economic operation and policy encouragement, the gas hot water boiler is more and more popular.
Biomass boilers: horizontal biomass boilers, vertical biomass boilers. Biomass heat-conducting oil furnace, biomass steam boiler, biomass hot water boiler, biomass heat-conducting oil furnace. The gas-fired steam boiler adopts a lower-burner method, a two-return structure, sufficient fuel combustion, stable boiler operation and small footprint, and a spoiler inserted in the smoke pipe, which slows down the exhaust rate and increases the heat exchange capacity. The boiler has high thermal efficiency and reduces User fees First of all, this big coal cannot be burned through.
During the slag discharge, there was still a fire, and the slag retaining part was burned, and the carbon content of the residue was high; the second was the serious leakage of pulverized coal; the third was the large resistance, which increased the load of the blower and the induced fan, and the energy consumption was high. The furnace temperature is low, the coal quality is poor, and the combustion conditions are poor. The furnace temperature is low and sometimes even goes out. A large amount of unburned materials and ash powder blocked the economizer and air preheater, leaving the furnace in a positive pressure combustion state. Part of the heating surface of the reheater is set in the high smoke temperature area of the hot water boiler, which greatly increases the heating area required by the superheater.
In order to reduce the flow resistance of the working fluid through the heater and improve the rigidity of the tube, the superheater uses a tube with a larger diameter. In order to improve the radiant heat absorption rate of the superheater system and stabilize the steam temperature characteristics of the superheater, a radiant screen superheater and a semi-radiation rear screen superheater are set in the upper part of the boiler hearth. Separator superheaters are arranged along the width of the furnace. Each superheater is composed of a small screen, which not only increases the role of radiant heat transfer, but also blocks the rotating smoke stream to reduce the furnace entering the human superheater. Flue gas temperature deviation in wide direction.
For the power consumption of the hot water boiler, we use the temperature to control the start and stop of the pump, try not to let the pump work at low temperature, and then start the pump when the set temperature is reached. The reduction of the thermal efficiency of the boiler inner wall scaling is the main reason for the power consumption of the boiler. It is recommended to magnetize or soften the boiler water, which can save energy and prolong the service life of the boiler. Atmospheric pressure boiler, also known as pressureless hot water boiler, means that the top of the boiler passes through the atmosphere and does not withstand the static pressure of the water column of the heating system. This is a fairly open hot water tank. The circulating water pump can only be installed on the main pipe of hot water supply. It should be equipped with a check valve and a flow regulating valve. In this way, the circulating water pump can not play the role of water circulation, but it has the role of pressurized water. In fact, it is a kind of Pressurized water pump. This is like a cold water pump in a water supply project. Water from the reservoir is pumped to a water tower and then delivered to the user by gravity.
So what happened to the hot water boiler? The advantage is that there is no danger of explosion, supervision and inspection can not be carried out, there is no need to consider the pressure relief problem of the boiler room, save steel, simplify the process, recycle the abandoned boiler, and cancel the recharge pump. Power failure protection is good, durable, saving users various investments. Selection of common materials for corrosion-resistant centrifugal pumps:
The reason that most corrosion-resistant pumps are resistant to corrosion mainly depends on the material of the flow-through parts of the pump. For corrosion-resistant pumps, according to different conveying media, choose the appropriate material as the flow element of the pump. The hot water boiler is equipped with a computer-type boiling water boiler controller. All functions are stored on a smart chip, which realizes the boiler’s intelligence, digitization, automation, and humanization.
The boiler intelligently controls the water temperature and automatically stops heating when the water temperature is reached; large screen font The water temperature is displayed, and the furnace water temperature is clear at a glance. The gas-fired steam boiler adopts a lower-burner method, a two-return structure, sufficient fuel combustion, stable boiler operation and small footprint, and a spoiler inserted in the smoke pipe, which slows down the exhaust rate and increases the heat exchange capacity. The boiler has high thermal efficiency and reduces Steam boiler is a kind of energy conversion equipment. The energy input to the boiler includes chemical energy, electric energy, and thermal energy of high temperature flue gas. After the boiler is converted, it outputs steam and high temperature water with a certain amount of thermal energy. Or organic heat carrier. The materials in Table 3≤1 are only suitable for certain corrosive media, such as 1Cr18Ni9Ti, and can be used at room temperature for low-concentration nitric acid and other oxidizing acids, lyes and weakly corrosive media; OCr18Ni12M02Ti is suitable for room temperature, sulfuric acid, organic acids High concentration nitric acid is transported in other reducing media.
HT200 gray cast iron is suitable for concentrated sulfuric acid. Plastics have a wide range of application prospects, such as polytetrafluoroethylene, polyperfluoroethylene propylene, etc. After reasonable formulation, molding, and processing, plastic corrosion-resistant pumps combine the advantages of various plastics in one, with strong corrosion resistance and mechanical strength. High, no aging, no toxins and other advantages. It is an ideal equipment for conveying various strong and weak acids. Among them, polytetrafluoroethylene (PTFE) is a material with anti-corrosive properties, which can basically resist the corrosion of any acid and alkali medium. Known as the king of plastic. In addition to the materials listed in Table 3≤1, ceramics, enamels, glass, etc. are also used in some applications for the through parts of corrosion-resistant pumps.
Hot Water Boiler Manufacturers 