The secondary water pressurization equipment of the 18 storey residential building is generally on s

Generally speaking, 18-storey residential buildings, 1-10 floors, water supply in the low area, 11-18 floors in the high area water supply, two pressurized pumps or negative pressure water supply equipment, should be 10 floors between the tube wells, specific recommendations to consult the property floor, high-rise buildings, elevator-like machine room, elevator-like roof, set up elevator machine room, easy to control maintenance.

The secondary pressurized pump or non-negative pressure water supply equipment should be between the 10-layer tube wells.

For details, it is recommended to consult your own community property.

If the water supply is supplied with non-negative pressure equipment. The 1st to 6th floors, whether it is 1 or 2 pressurization, can use water.

The only difference is the amount of water pressure. From an engineering point of view. If the 1st to 6th floors are directly supplied, the materials used will reduce the level, but increase the complexity of the pipe network. If it is supplied unified, then the material of the pipe network of 1-6 will be high, but the complexity of the pipe network will be reduced.

Legal analysis: 18 layers for 4 kg. Generally, the standard pressure on the top floor of a high-rise should be 2 kg, which is also the specified water pressure, and the water pressure from the 1st floor to the 6th floor is between 3 kg, which belongs to the municipal water supply.

For every 3-4 floors from the top floor, the water pressure is increased by one kilogram for every 3-4 floors from the top floor, for example, for a 25-story building, the water pressure on the 25th floor is 2 kg, then the 21st floor is 3 kg, the 18th floor is 4 kg, the 13th floor is 5 kg, and the 9th floor is 6 kg.

Legal basis: Regulations on Urban Water Supply

Article 4 The principle of combining the development of water sources with the planned use of water and the conservation of water shall be implemented in urban water supply work.

Article 5 The people at or above the county level shall include the development of urban water supply in the national economic and social development plan.

Article 6 The State shall implement policies conducive to the development of urban water supply, encourage scientific and technological research on urban water supply, popularize advanced technology, and improve the modernization level of urban water supply。

Seventh urban construction administrative departments in charge of the national urban water supply work.

Provincial and autonomous region people's ** urban construction administrative departments are in charge of urban water supply work within their respective administrative areas.

The urban water supply administrative departments (hereinafter referred to as the urban water supply administrative departments) determined by the people of cities at or above the county level are in charge of urban water supply work within their respective administrative areas.

Standard for the pressure of the secondary water supply in the upper floor:

1. One floor (bungalow), two floors plus, three floors to six floors plus each floor, so the municipal government ensures that the six floors have qualified water, then the pressure is.

The pressure of one kilogram of rice and the pressure of tap water delivery are 2-4 kilograms, that is, the secondary water supply must be provided above 40 meters, and the secondary water supply should be set above 30 meters considering the normal water pressure.

Secondary water supply equipment, generally located on the ground or in the basement. Units with tap water can use this equipment to dispatch peak water consumption, increase water pressure, and meet the needs of large areas and high floors during peak water consumption. Units, factories or villages that do not have running water only need to connect the equipment to the water source power supply to get a stable water pressure to meet the water demand.

The secondary water supply equipment is composed of three parts: air pressure tank, water pump and electronic control system, and its outstanding benefits are that there is no need to build a water tower, the investment is small, the area is small, the organization is active, and the completion and operation are fast.

The automatic dispatch of water and gas, automatic operation, energy saving and automatic grid connection of tap water are selected, and the water can still be supplied after power failure, and there is no need to guard after commissioning. It is widely used in the production, daily and operational water supply of enterprise units, vertical towerless water supply residential areas and villages. It is suitable for places with water supply households within 5,000 households, daily water supply within 3,000m3, and water supply height of more than 100 meters.

The secondary water supply equipment adopts pneumatic water supply. The sealed tank is used, and the high-pressure air and water pressure in the tank is used to achieve the purpose of water supply. The specific operation is to press the water into the tank through the check valve by the water pump, so that the gas in the tank is contracted, and the pressure gradually increases.

When the pressure reaches the specified upper limit, the electric contact pressure gauge automatically connects the pump through the control cabinet.

The water pressure in the equipment is higher than the pressure of the external pipe network, and the water is automatically sent to the water supply network. When the water level in the tank drops, and the gas expansion pressure in the variable frequency constant pressure water supply tank decreases to the specified lower limit direction, the electric contact pressure gauge restarts the pump through the control cabinet. And so repeatedly, so that the equipment is constantly supplied with water.

When there is a shortage of gas in the tank, the make-up valve can automatically replenish the gas.

Summary. Hello! We will be happy to answer for you: the secondary water supply for the 17th floor is located in the basement or on the 6th and 7th floors. The secondary water supply is to increase the water pressure so that the water pressure on the upper floors is enough.

Hello! We are glad to answer for you: the secondary water supply equipment on the 17th floor is still destroyed in the underground closed room or on the 6th-7th floor. The secondary water supply is to increase the water pressure so that the water pressure on the upper floors is enough.

Usually on the 7th floor, because the general municipal drainage pressure can only maintain 6 floors to build the water under the field, once it is higher than the 6th floor, it is necessary to carry out secondary pressurized water supply. But it depends on the region and the terrain. If the terrain is high and the municipal water pressure cannot be reached, some high-rise buildings may shout from the 4th floor to set up secondary water supply equipment.

The secondary water supply of the community is actually a pressurized system for the water pressure of the high-rise residents in the community. This system is cumbersome to install, and is mainly used for installation when the high-rise is not under insufficient pressure. However, although the secondary water supply makes the water supply of high-rise users in Xunjiaochang more convenient, it is necessary to pay attention to the water source of the secondary water supply that is easy to pollute.

In an 18-storey high-rise building, if a secondary water supply is designed, the water pressure standard for the secondary water supply should be about 2 kilograms.

First of all, we will find that as long as it is a high-rise building, it is generally formed in the water supply up and down two steps, the first step is mainly from the 1st floor to the 6th floor, and its water pressure standard should not be less than kilograms, not higher than 3 kilograms, and when forming a secondary water supply, its standard should be from the 6th floor to the top position, so its municipal standard pressure should be about 2 kilograms.

Extended information: Urban Water Supply Engineering Planning Code (GB50282 98) Article 1 stipulates that the water supply pressure of the urban water distribution pipe network should meet the requirements of 28m service head at the user's takeover point, and the other is the standard 16m service head (three-storey) stipulated by the Ministry of Construction

2) Please refer to the Code for Acceptance of Construction Quality of Building Water Supply and Drainage and Heating Engineering GB50242-2002, which stipulates in Article 1:

The hydrostatic test of the indoor water supply pipe must meet the design requirements. When the design is not specified, the test pressure of the water supply pipeline system of various materials is times of the working pressure, but shall not be less.

Generally, the pressure of the municipal water supply network is in.

According to the requirements of the Ministry of Construction's pipe network water supply pressure service specification, the urban water supply service pressure is megapascal, which can only ensure water supply to 3-4 floors;

The water supply above the fourth floor falls under the category of secondary water supply.

The average pressure of the current pipe network in the general city reaches the above, which is much higher than the national standard, and can basically meet the water pressure requirements of 6-storey users, but from the perspective of safe operation, individual users of 6 floors or more due to their higher geographical location, when the water pressure of the public water supply pipeline can not meet the requirements of users, secondary water supply facilities must be added.

Running water for high-rise residential buildings.

1. Generally, the water pressure of tap water is about kilograms.

2. 1MPa is equal to 10 kg.

1MPa = 10 kg water pressure.

MPA MPa is the new unit.

It is generally believed that the meter is equivalent to a standard atmosphere, and the pressure supply at the end of the pipe network is equivalent to the height of the faucet 14 meters from the water supply tower (pool). Therefore, the higher the location of the home, the lower the water pressure.

III. 1Water pressure has nothing to do with the amount of water, only with the depth and density of the water. (The deeper the water, the greater the water pressure; The higher the density, the greater the water pressure), in real life, the water pressure at home is also affected by the bending degree of the water pipe, and the more bends, the water pressure will decrease.

2.The deeper the water, the greater the water pressure.

3.At the same depth, the water pressure is under pressure on all sides.

"Residential Building Code" GB50368-2005 code set of household water supply pressure should be larger, the water supply pressure of the household pipe should not be greater.

Code for Design of Building Water Supply and Drainage GB50015-2003 (2009 Edition) Code The living system of high-rise buildings should be vertically partitioned, and the vertical partition pressure should meet the following requirements:

1. The hydrostatic pressure of the minimum water distribution point of sanitary appliances in each zone should not be greater.

2. If the hydrostatic pressure is greater than the inlet pipe (or water distribution horizontal pipe), it is advisable to set up pressure reduction or pressure regulation measures.

3. The water pressure at the most unfavorable point of each partition should meet the water pressure requirements. The water supply pressure of the residential building should not be greater than.

Precautions for secondary water supply.

Generally speaking, 7-storey residences with eaves of more than 20 meters can be called high-rise residences, and according to the different floor heights, high-rise residences can be divided into small high-rises, high-rise buildings and super high-rises. Generally, people call 7 9-storey high-rise buildings medium and high-rise (that is, people generally say "small high-rise floors and above are high-rises, and the total height of more than 100 meters is super high-rises.") Now, small high-rise and high-rise are the more common high-rise residences.

Water supply equipment is a water supply equipment that automatically starts and stops with a certain flow rate and head per unit time. According to the use of the disposition, it is divided into four categories: fire protection, life, production, and sewage treatment. At present, the most widely used secondary water supply equipment includes non-negative pressure water supply equipment, frequency conversion constant pressure equipment, box-type non-negative pressure water supply equipment, etc.

The secondary pressurized water supply starts from the 4th or 7th floor, that is, the pressurized equipment is generally on the 4th or 7th floor. The principle of the use of the secondary water supply method is: where the municipal water pressure cannot be delivered, it must be pressurized twice, that is, the so-called secondary water supply.

There are two standards for municipal water pressure. One is that the state stipulates that it meets the 28m service head (six floors); The other is a 14m head (three-storey building) according to the Ministry of Construction's No. 277 document. Due to the different terrain of each place, the most unfavorable water pressure of the local water supply plant is not up to 28m head, so it is not less than 14m head.

The general municipal water supply is responsible for the water supply up to the 1st to 6th floors, and the secondary pressurized water supply starts from the 4th or 7th floor.

Do the math how much it will cost you to renovate your home

Now most of the city's housing is high-rise buildings, so the problem of high-rise residential water has become a problem that everyone is more concerned about.

The primary and secondary pressurized water supply is generally on several floors.

Secondary pressurized water supply generally starts on the 4th or 7th floor. According to the relevant regulations, the water supply pressure of the water supply company can only reach about 6 floors at most, which is far from catching up with the needs of high-rises. Therefore, the floor that cannot be reached by municipal water pressure must be pressurized twice, that is, the secondary water supply.

Second, which layer of water supply is more stable.

1. Usually the municipal tap water pressure is about about 30m, that is, 30m water column. However, the water loss (pipe bending, pressure loss through valves and water meters, etc.) that actually enters the floor is only about about the same, and the water pressure on the top floor should also be met; It is also necessary to think of the ups and downs of the pressure of the municipal pipe network; Multiply by the coefficients used together.

2. In order to prevent this problem, pressure reducing valves are generally placed in the lower layers to ensure that the pressure at the bottom of the household meets the standard requirements. In fact, the residual pressure is also left and right. Therefore, the direct water supply on the 1st to 4th floors is still possible, which is stable in this building.

3. If it is under the pressure level of the secondary water supply pressurization on the high floor, there will be a burst pipe and a burst valve, then it is not the problem of inferior quality and counterfeit sales of water pipe valves, it is caused by water pressure, usually the operating pressure of PPR cold water pipe on the market will not be less, so under the condition of secondary water supply, it is more stable at the low floor.

4. There are obviously pressure problems in direct water supply and secondary water supply, if you are worried about the water pressure bursting on the floor, it is recommended to choose a low-rise building.

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