How to calculate the floor heating pressure, and how to calculate the floor water supply pressure

Calculation formula: g=

Thereinto. 1. G: Flow rate unit l h, q: heat load.

Unit w, δt: unit of temperature difference between supply and return water, which can be regarded as a constant.

2. Calculation of heat load: q = heating area ( ) heat index per unit area (w).

For example: kw= , converted to calories as: 368571 kcal, rounded to 370,000 kcal;

2. The circulating water volume is: 370,000 kcal 10 degrees = 37,000 kg hours (flow);

4. The economic flow rate of the heating pipeline is about: meters and seconds;

5. Calculation of pipeline diameter: a. flow rate = pipeline cross-sectional area x water velocity x 3600 seconds = area meter seconds x 3600 seconds x 1 ton cubic meter = 37 tons per hour;

6. Area = square meters; The diameter of the pipe is: m, 72 mm, round to DN80, optional: 89 pipes.

If you don't distinguish between high and low areas, you can choose the pipe. Household pressure = circulating pump head, water replenishment pump head - internal resistance of heat exchange station - resistance along the way to each user - height of the floor where the user is located. For example:

10 meters is about 1 pressure, 6 floors are 18 meters high, plus pipeline pressure loss, resistance, etc., the pressure operation is no problem.

The heating pressure has a lot to do with the head of the circulating pump and make-up pump of the heat exchange station. Therefore, it is necessary to confirm the pump head in advance, and if there are no special requirements, it can be calculated according to the above method.

According to the soil method, 10 meters is about 1 pressure, 6 floors are 18 meters high, plus the pressure loss of the pipeline, resistance, etc., the pressure operation is no problem.

Summary. Hello dear, in layman's terms, it is the pressure required to send water from the water supply port to the water distribution point (water point). The calculation formula is as follows: h=h1+h2, where h is the pressure required by the water supply network; h1 is the hydrostatic pressure from the water supply point to the water distribution point, and the elevation difference; H2 is the total head loss of the pipeline from the water supply point to the water distribution point, including the head loss along the way.

How to calculate the pressure on each floor of the closed water system of the 12-story hotel.

Hello dear, in layman's terms, it is the pressure required to send water from the mouth of the water supply liquid to the water distribution point. The calculation formula is as follows: h=h1+h2, where h is the pressure required by the water supply network; h1 is the hydrostatic pressure from the water supply point to the water distribution point, and the elevation difference; H2 is the total head loss of the pipeline from the water supply point to the water distribution point, including the head loss along the way.

In terms of pro-general spring Haobi, the traditional calculation method of pressure on socks and water: a layer-; Two layers—, three layers—and then add them up in turn.

Twelve floors are that.

The water supply of the hotel negative building is 078mp, and the tube well on the 8th floor is equipped with a fiber reduction attitude pressure valve, and the branch wants to remove it, mainly because the hot water is not hot due to the imbalance of cold and hot water pressure in several rooms on the 6th floor.

Hello dear, this involves I don't know professional knowledge anymore, sorry, dear, I can't ask this question, I'm really sorry.

The pressure of central heating is generally considered normal in between.

The standard of heating pressure is: the working pressure of the radiator 6 is the standard of production design, that is, it can be used normally below 6 kg. Most of the running water heating will not exceed 4, and the water temperature is indispensable if you want to heat the pressure, and there must be a certain pressure difference in the water supply and return water.

The operating pressure should be lower than the working pressure designed for production. In addition, the pressure test is in accordance with the times of the highest operating pressure of the heating test, and the maximum operating pressure of the heating is not exceeded, the actual pressure is generally between, the so-called test of 8 pressures, is the need for project acceptance, frequent pressure testing, harmful to the old pipeline radiator.

How many floors are there in the upper floors. The heating pressure will be different at different heights according to the design requirements, and the pressure of the small high-rise (11 floors) is generally more than 6 kg.

Answer: The pressure of central heating is generally in between, because the pressure that its geothermal pipe can withstand cannot be exceeded, so in order to make the heating system operate stably and normally, its pressure must be controlled in between.

It depends on how tall you are, plus the resistance required for circulation

<> "For people in the northern region, heating is indispensable every winter, because this season is very cold. So, how much is the heating pressure in the upper floors? What should I pay attention to when heating in high-rises?

How much is the heating pressure in high-rise generally.

Generally, for high-rise residences, not all floors are heated together, and it uses a segmented way to heat each floor, which can prevent too much pressure difference during heating. Normally, one to eight floors are used as a segment, and the heating pressure needs to be controlled around the right and right, not higher, and the upper layer pressure is in.

What to pay attention to in high-rise heating.

1. Water pressure test.

Every year, before the start of heating, it is necessary to carry out a water pressure test, because the heating line has not been used and water for a whole year, and the various joints may be loose due to a long period of non-use. In this case, if you use it rashly, it is easy to leak. In addition, the pipes may also be unused for a long time and have not been drained, and the inside is full of dirt, which will cause blockage if not cleaned.

Therefore, it is necessary to pass the water and test the pressure first, so as to ensure that the heating can be used normally.

2. Clean the filter screen of the water separator.

Before using the heating, it is also necessary to check the source filter sleeve valve of the water separator at home, and take it out to see if it is clean and dirty, so as to avoid blockage of fiber. If there is, it needs to be cleaned before installing it back.

3. Pay attention to open windows for ventilation.

At the beginning of heating, it is necessary to keep the room ventilated so that fresh air from the outside can enter the room. Because if you don't keep the ventilation in the room, it is easy to cause respiratory diseases and other diseases. In addition, during the trial process, if it is inconvenient to open the window, you can put a dish of water indoors, which can increase the humidity of the room and prevent it from being too dry.

The working pressure is not more than kilogram force cm (gauge pressure, the same below) of the steam heating system.

The hydrostatic test is 2 times the working pressure at the apex of the system, and at the low point of the system, it shall not be less than kilogram force cm.

For hot water heating or steam heating systems with a working pressure of more than kilogram force cm, the working pressure at the apex of the Douyu system should be increased by 1

Kilogram force cm for hydraulic test, and the test pressure at the apex of the system shall not be less than 3 kgf cm.

Heating system extension resistance + local resistance + heating system rich pressure (greater than 50kpa) + static pressure.

Calculate the resistance loss first, and then calculate the height difference Add up to a larger basic area is the high area.

I don't know much, so let's ask the industry.