What are the safety precautions when using a water heater?

What are the safety precautions when using a water heater?

What are the safety precautions in the use of water heaters? Water heaters are very common household appliances in daily life, but many people don't know much about the safe use of water heaters, resulting in many accidents every year. Let's share some safety precautions when using water heaters. Let's have a look.

What are the safety precautions in the use of water heaters? 1 First of all, basic knowledge.

Electric water heaters are divided into water storage type and instant heating type, also known as fast electric water heaters. The electric water heater is characterized by convenient use, energy saving and environmental protection, and can continuously supply hot water. Storage capacity is divided into 30L, 40L, 50L, 60L, 80L, 90L, 100L and so on.

Classification of gas water heaters: according to the types of gas used, it can be divided into artificial gas water heaters, natural gas water heaters and liquefied petroleum gas water heaters; According to the control mode, it can be divided into: front water heater and rear water heater. According to the way of air supply and exhaust, it is divided into: direct exhaust type, flue type, forced exhaust type, balanced type and forced exhaust type; According to the installation position, it can be divided into indoor installation and outdoor installation. Due to the actual situation and usage habits in China, gas water heaters are still the first choice for many consumers. The safety of gas water heaters is also the most concerned issue. Whether the toxic gas can be discharged in time becomes the key to the safety of gas water heaters. From the development of European and American countries, forced air supply and exhaust is the inevitable trend of gas water heaters.

Solar water heater is a water heater assembled by vacuum collector tubes, which can generate hot water when illuminated, and can be widely used for domestic and industrial hot water. It is characterized by high heat collection efficiency (daily average efficiency ≥0.46), safety, cleanliness, energy saving, good thermal insulation performance, year-round use and long service life. Specifications include 12 branch pipe, 15 branch pipe, 18 branch pipe, 2 1 branch pipe, 24 branch pipes, etc.

Three. Matters needing attention of gas water heater

Gas water heater is a common type of water heater in families at present. There are several types of gas water heaters, such as artificial gas, liquefied petroleum gas and natural gas. In order to avoid the toxic gas produced by gas during use, remember to turn on the exhaust fan for ventilation and keep the indoor air circulating. In addition to maintaining air circulation, there are some matters needing attention when using gas water heaters at ordinary times:

When installing:

1, which must be installed by professionals. The installation of gas water heater must be approved by the gas company, installed by professional installers and obtained the use license. When buying water heaters, pay attention to the after-sales service of manufacturers, and whether there is a maintenance point or a special maintenance department in the local area.

2. At present, there are two kinds of exhaust gas emission devices for gas water heaters on the market:

One is the flue exhaust type, that is, an exhaust pipe is connected to the exhaust port of the water heater, and the exhaust gas is discharged to the outside through the pipeline. However, if the flue is not installed correctly, so that the exhaust port is facing the tuyere, it is easy to make the exhaust gas flow backwards when the north wind blows, causing danger. Therefore, the installation of this flue should have an outdoor chimney to let it exhaust naturally.

The second type is forced exhaust, that is, the exhaust gas is discharged to the outside through a small fan installed on the main body of the water heater. This kind of water heater is not dangerous whether it is well ventilated indoors or windy outdoors.

PS: Don't hang anything on the air supply outlet and exhaust outlet of the room, so as not to affect the air circulation.

When in use:

1, because the gas water heater will consume a lot of oxygen during use, it is best not to use it continuously, so there will be an opportunity to replenish oxygen indoors. In addition, it is best to install the water heater on the wall within two meters of the external wall or window, and install it by gas professionals. All gas water heaters are installed in the kitchen except the balanced water heater.

2. The gas water heater is easy to produce dirt due to its heavy heat load, so users should maintain it regularly and regularly check whether the gas path, waterway, heat exchange system and smoke exhaust system of the water heater are safe; Check the gas pipeline frequently. If there is air leakage or flame overflowing from the shell or escaping from the lower part during use, stop using it, close the gas main valve in time, open the doors and windows, and fire is strictly prohibited.

5. Flammable and volatile articles are prohibited around the water heater, and flammable articles such as towels and rags are prohibited at the air outlet and air supply outlet.

6, after use, check whether the gas valve is closed, often check whether the gas supply pipeline is in good condition. Pay attention to changing the rubber hose regularly. Please check whether there are bubbles at the hose connection with soapy water. If there is air leakage, report for repair in time.

7. If the water heater is not used for a long time, the valve of the gas pipeline in front of the water heater should be closed.

Matters needing attention of electric water heater

Electric water heater is also one of the common types of water heaters. Compared with gas water heater, it is more convenient to use and can continuously supply hot water. Let's take a look at the precautions for using electric water heaters:

When installing:

1, that is, the hot water heater must be equipped with a filter screen at the water inlet, because there are a small amount of impurities in tap water, so as not to get stuck in the floating magnetic field (dry burning, no heating) or block the shower head (the water outlet is getting smaller and smaller). If the filter screen is blocked, the flow rate will decrease and the outlet water will become smaller, so the water heater cannot be heated without floating magnet. After a period of use, remove the filter and clean it before use.

2. When installing the water heater, the staff must remember to check whether the "floating magnet" is at the lower end to make it in a free state to ensure the normal use of the water heater. Because the floating magnet is a water-electricity linkage switch, the water valve is turned on to automatically heat, and the water is turned off to stop heating. If there are impurities stuck on the floating magnet, the water heater will dry up or not generate heat, and the impurities on the floating magnet can not work normally until they are removed.

3. The instant electric water heater does not need to use the water mixing valve, because if the water mixing valve is used in the middle, cold water and hot water will flow out at the same time. At this time, the flow of hot water will become smaller, which will lead to the high water temperature of the water heater, which will lead to over-temperature (thermostat action) and the phenomenon of water being hot and cold. The staff should inform the customers who use the water mixing valve to start the machine directly to the hot water end, and there is no need to mix cold water, so that the service life of the product will be longer and it is not easy to scale.

4. When installing the water heater, you must use the special shower provided by the manufacturer. Under normal working conditions, the water heater can adjust the water flow or raise the water temperature by adding a high-grade position. However, the average user does not have the habit of controlling the flow of the faucet, which leads to the water temperature not reaching the predetermined effect.

When in use:

First, when using, open the water valve. When there is no water, immediately disconnect the power supply to prevent damage caused by failure when working without running water.

Second, the use should avoid the damage caused by too small water inlet and too high water outlet temperature.

Third, when using the water storage type, it must be filled with cold water before it can be electrified and heated. When the hot water valve is opened, water flows out, and the water is stored properly and can be electrified.

Fourth, in order to prevent burns during use, you can open the cold water valve first and then the hot water valve; Close the hot water valve first, then the cold water valve.

Five, the use of water storage requires tap water to be in a normally open state to ensure that there is always water in the water tank.

6. Beware of installing valves at both the water inlet and the water outlet.

Seven, the electric water heater is replaced every two years on average to avoid corrosion and leakage of the inner container.

Eight, if you don't use the water heater for a long time:

First of all, you have to unplug the power plug to keep the water heater in a power-off state, which is mainly for safety. If it is not used for a long time, the water heater will be in working condition, which will lead to the accelerated aging of components in the water heater and shorten the service life of the water heater.

Secondly, empty the water in the water tank, so that the water tank of the water heater is in a state of no water injection. This can effectively reduce the pressure of the liner and prolong its service life.

Thirdly, if possible, it is best to wrap the water heater in a plastic bag to prevent dust and moisture.

If you want to use it again, first remember to fill it with water before turning it on for heating.

Matters needing attention of solar water heater

For reasons of environmental protection and convenient use, many families now buy solar water heaters. The following are the precautions for using solar water heaters:

When in use:

1, the water tank should be replenished immediately when it is empty, and it is forbidden to dry it without water. If there is no water to expose to the sun for 2-3 hours, don't add cold water. Wait until the vacuum tube cools at night. Otherwise, the upper opening of the vacuum tube is easy to open due to thermal expansion and cold contraction, so that the vacuum tube is not kept warm due to deflation, and the water in the vacuum tube breaks and leaks due to freezing expansion of water in winter.

2. Don't take a bath with a water heater when lightning strikes, and keep the water tank full of water when the wind blows.

3. If electric heating is optional, avoid burning without water, and cut off the power supply when taking a bath.

4. It is forbidden to block the air outlet on the water tank, otherwise the water tank may expand or deflate due to poor exhaust.

When replenishing water, sometimes the water doesn't go, but the original hot water in the water tank is reduced. This is because the cold water pressure is too low to reach the water tank. On the contrary, hot water flows back to the cold water pipe, causing the cold water faucet to turn on hot water or the downstairs residents can use hot water. Therefore, when the water pressure is too low (for example, the water meter does not turn), it is best to close the valve and fill it with water when the water pressure is high.

Daily maintenance:

1, the system regularly discharges pollutants to prevent pipeline blockage; And clean the water tank to ensure the water quality is clean. When discharging sewage, as long as the water inflow is normal, just open the drain valve until clean water flows out of the drain valve.

2. Regularly remove the dust and dirt on the transparent cover plate of the solar collector, keep the cover plate clean and ensure high light transmittance. Cleaning should be carried out in the early morning or evening when the sun is not strong and the temperature is low, so as to avoid the transparent cover plate being crushed by cold water.

3. Pay attention to check whether the transparent cover plate is damaged, and replace it in time if it is damaged.

4. For vacuum tube solar water heater, always check the vacuum degree of vacuum tube or whether the inner glass tube is broken. When the barium-titanium getter of vacuum tube turns black, it shows that the vacuum degree has decreased and the collector tube needs to be replaced.

In sunny summer, if no one is at home for a long time, such as traveling and visiting relatives. It is best to arrange others to put hot water and cold water in a few days, or cover a vacuum tube if possible, otherwise the long-term high temperature and high pressure in the water tank will accelerate the aging of the sealing ring and shorten the life of the water tank.

What are the safety precautions in the use of water heaters? 2. Use the gas water heater correctly.

Gas water heater, also known as gas water heater, refers to a gas appliance that uses gas as fuel and transfers heat to cold water flowing through the heat exchanger through combustion heating to achieve the purpose of preparing hot water. It is mainly composed of valve body assembly, main burner, small fire burner, heat exchanger and safety device. (It also includes the flue of flue water heater and the forced exhaust device of forced exhaust water heater.

1. Is the gas water heater safe or not?

The development of automobiles has brought great benefits to people's production and life. As long as you obey the traffic rules and related safety regulations, driving is safe. Nowadays, although accidents happen every day and many people die in car accidents, automobile production is still developing. Although accidents happen every year in the process of using briquette stoves, people have not stopped using briquette stoves. Gas water heaters, like many products, should follow certain rules in use. As long as it is installed according to the regulations, operated according to the correct procedures and well ventilated, it will be very safe to use, convenient for life and beneficial to mankind. If you violate this rule, something will definitely happen.

2, hypoxia and carbon monoxide harm to people

When the water heater is used, one is to use oxygen to support combustion, and the other is to produce smoke. Under normal circumstances, the content of carbon monoxide in flue gas is very small, but in the case of insufficient air supply, the content of carbon monoxide in flue gas will increase greatly. When the water heater is used under the condition of poor ventilation, there is less and less oxygen in the air and more and more carbon monoxide. Lack of oxygen makes people suffocate, and carbon monoxide makes people poisoned. Carbon monoxide is a colorless, odorless and non-irritating toxic gas. After poisoning, besides headache, dizziness and nausea, symptoms such as tinnitus, palpitation, vomiting and limb weakness may also occur. The use of water heaters must be well ventilated and must not be sloppy.