Frequently Asked Questions

Boiler pressure protection means that once the steam pressure exceeds the rated value, interlock protection is required. This is an important protection warning measure in boiler operation.

The main treatment method is to automatically stop the boiler when the operating pressure of the boiler is too high, and the combustion system will stop working; the operating power can also be changed, single-stage or double-stage combustion; the oil quantity (or gas volume) can also be adjusted to achieve proportional adjustment, thereby According to different steam pressures, adjust the burner working load to ensure the safe operation of the boiler.

FANGKUAI uses a variety of advanced equipment and technology to achieve precise pressure control in all directions.

1. Pressure gauge
Specially customized, safe and reliable, and responsive, direct-reading pressure gauges with normal (green) and overpressure (red) working zone indications, which are aesthetically pleasing and easy to observe.

2. Pressure controller
Its main function is to send signals with high and low pressure to the electrical switch, and the external circuit is automatically controlled or interlocked. Fang quickly chooses imported Danfoss pressure controller to make steam pressure overpressure alarm, and cut off the burner when it reaches the limit.

3. Pressure transmitter
The steam pressure in the boiler is converted into a continuous pressure signal, the touch screen directly displays the current pressure, the steam pressure is automatically adjusted, the boiler is stably operated, and energy saving is achieved (selected from Danfoss, Denmark).

4. Safety valve
The safety valve is the last line of defense in the protection of the boiler. When the boiler pressure exceeds the limit, the steam is released according to the setting pressure of the safety valve.

Take you into FANGKUAI Boiler - Pressure Control Technology

For many users who want to open a bath, it is a headache to estimate how much boiler is needed based on the number of nozzles and the amount of water used. Below, we will take 100 nozzles and an average bath temperature of 40-60 °C as an example to answer your need for boiler equipment.

When calculating the boiler capacity, it is necessary to use 100 nozzles (the highest value) at the same time as the standard, and temporarily ignore how many people use at the same time, but use the number of nozzles as the estimation unit, as long as 100 nozzles are used at the same time.

An adult bathing water is about 0.2-0.3 tons per hour, and 100 nozzles use 20-30 tons per hour. Therefore, it is only necessary to satisfy a boiler that can supply hot water between 20-30 tons per hour. Considering the various factors such as the difference in bath water temperature, we estimate that 100 bathing nozzles will require a 2 ton bath boiler. If it is necessary to carry out the heating of the bath, it is necessary to calculate according to the actual heating area. You can tell our online customer service about your heating area and bathing nozzles, and the technician will give you a detailed analysis later.

At the same time, in addition to the boiler tonnage problem, there is a need to choose fuel. It is best to use fuel or gas boilers in the baths in towns. These two types of boilers are not only environmentally friendly but also well managed, and do not require special space for fuel storage. Also pay attention to the choice of water tank. Generally speaking, the boiler and water tank should select the maximum value, which can not only meet the needs, but also effectively avoid the boiler overload operation and prolong the service life of the equipment.

How many boilers do you need for 100 bath nozzles?

Inevitably, gas-fired hot water boilers will fail due to human error or boiler's own reasons in operation. After the failure, we should deal with it in time in order to prevent more damage. Fangkuai Boiler summarizes four repair methods after stopping and checking for your reference.

First, stop the furnace.
       1. Do not stop the pump immediately when the furnace is shut down. The pump must be stopped when the boiler outlet temperature is below 50 °C. At the same time, the water supply valve and the hot network return valve should be turned off, and the boiler water must be discharged before inspection and then repair can be carried out.

Second, check.
     1. Before entering the boiler, all the water in the boiler must be drained, and the sewage outlets are all open. The manhole on the drum, the hand hole on the header must be opened, so that the air can be convected for a period of time before entering the internal work.
       It must be noted that when someone inside the drum is working, there must be someone under the drum.
      2. Before entering the combustion chamber or flue to work, ventilation, anti-virus, fire prevention and explosion-proof measures must be taken. The flue gate connected with the main flue or other flue of running boilers will be closed tightly.
      3. Safety voltage should be used in lighting. If the boiler body and flue tubes are humid, the lighting voltage shall not exceed 12V. If it is dry, the lighting voltage should not exceed 36V. In addition, proper safety measures should be taken to prohibit the use of open-fire lighting.

Repair Method of Gas Hot Water Boiler after Fault

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