Regarding the pollution caused by the secondary pressure supply of tap water, how should the owner r

What is the secondary pressurized water supply system, the hotel has several pressurized water supply methods, secondary water supply inspection, what needs to be checked "secondary pressurized water supply" refers to in addition to relying on gravity, air pressure and other methods to increase the water pressure, send water to a higher water level, so that the traditional high water tower model can be broken, and the water can be directly supplied to the high place from the low. Secondary pressurized water supply is mainly to lift the water in the pipeline to the actual required height of the building in the environment of insufficient municipal water supply pressure. >> general municipal water supply, the height of the pressure is six layers, and more than six layers, according to the relevant provisions of the state, it is necessary to increase the secondary water supply equipment, in layman's terms, it is to store the municipal water supply "tap water" through the container, and then use the corresponding power "according to the need" of the pump, the water is knocked down to a higher height, in order to meet the needs of more than six layers.

The inspection of the secondary water supply is very important, and in general, the contents of the inspection are: water tank, water level, water pump, power control box, automatic control valve, and pipeline. >> secondary pressurization refers to the process of increasing the flow rate or pressure of the medium by means of power machinery such as water pumps, etc., the pressurization mode of the hotel is the same as the conventional water supply pressurization method, some outdated secondary pressurization methods have been basically eliminated, and there are no negative pressure, pneumatic tank type, water tank frequency conversion and other three categories, well-known enterprises in China have Qingdao Sanli Group, etc.

Hello, it is advisable to inquire about the property.

The renovation project of urban secondary water supply facilities is planned to be implemented in three years from 2019. In order to reduce the burden of high-rise households to change the water, the urban area has introduced a policy to benefit the people, stipulating that the high-rise residential disturbance and the mausoleum house that has been completed and delivered to make use of the mill are implemented before the transfer, and the user shall bear 520 yuan for the renovation of the existing "one household and one meter" metering and transformation policy, and the insufficient part shall be borne by the water supply enterprises and the municipal and district finances in proportion. Among them, the water supply enterprises in the second ring will bear 30% in proportion, the municipal finance will bear 35%, and the territorial ** will bear 35%; In other areas, 30% shall be borne by water supply enterprises and 70% shall be borne by territorial **.

Legal Analysis: Standards for Secondary Water Supply Pressure at High Rises:

1.The first floor (bungalow), the second floor is added, and the third to sixth floors are added to each floor, so the municipal government guarantees that the sixth floor has qualified water, then the pressure is.

2.10 meters of one kilogram pressure, tap water delivery pressure 2-4 kilograms. In other words, more than 40 meters must be supplied with secondary water. Considering that the water pressure is normal, it should be set at more than 30 meters for secondary water supply.

Legal basis: Code for Construction Quality Acceptance of Building Water Supply and Drainage and Heating Engineering GB50242-2002

System hydraulic test and commissioning.

After the installation of the heating system, a hydrostatic test should be carried out before the pipes are insulated. The test pressure should always meet the design requirements. When the design is not indicated, the following provisions shall be met:

1. For steam and hot water heating systems, the working pressure at the apex of the system should be added to the hydraulic test, and the test pressure at the apex of the system should not be less than.

2. The test pressure of the high-temperature hot water heating system should be the working pressure at the apex of the system.

3. Hot water heating system using plastic pipes and composite pipes; The working pressure at the apex of the system should be added to the hydrostatic test, and the test pressure at the apex of the system should not be less than.

Test method: The heating system using steel pipe and composite pipe should not be greater than the pressure drop within 10min under the test pressure, and check after dropping to the working pressure, and the suspicion will not seep or leak;

The heating system using plastic pipes should be under the test pressure within 1 hour of the bench force drop is not greater, and then the pressure is reduced to times of the working pressure, the pressure is stabilized for 2 hours, the pressure drop is not greater than, and the connections are not seepage or leakage.

The quality of the secondary pressurized water supply is not polluted. However, it cannot be ruled out that there may be contamination in the process. Secondary water supply is a water supply method used for domestic drinking water in high-rise buildings.

Among them, a pressurized pump is required to reach the top user. In this way, a water storage tank is also set up to supply water to each user.

Causes of water pollution caused by secondary water supply.

1. Pollution caused by the secondary water supply network.

Water flows through secondary water supply facilities such as unlined or aged metal pipes, fittings, etc. Due to the low water consumption at night and the low flow rate of the pipeline, it will cause the inner wall of the pipe to produce thick rust and dirt to pollute the water quality. Therefore, when the user turns on the faucet, the water quality will turn yellow and impurities will flow out.

On the other hand, it is some old residential areas, and the pipes buried and underground in the building area are aging and damaged. As a result, external substances such as groundwater and soil seep into the pipes, causing water pollution.

2. Pollution caused by secondary pressurized water supply and storage facilities.

For secondary pressurized water supply, a large part of the water needs to be stored in pools and tanks. Pools and tanks are set up to meet domestic water consumption and ensure continuous and uninterrupted water supply. The unqualified material of the pool and water tank, or the unreasonable ratio of size to water consumption will also cause pollution of water quality.

3. Pollution of water quality by microbial reproduction.

The types of microbial contamination in the pipes, pools, and tanks of secondary water supply facilities include bacteria, Escherichia coli, autotrophic iron bacteria, and sulfur transformation deficiency bacteria. The main cause of microbial reproduction is the excessive consumption of residual chlorine by reducing substances or secondary pollutants remaining in the water.

Second, the retention time of water is too long, which leads to the reproduction of microorganisms and harms water quality, resulting in scaling and corrosion of pipelines and water pollution.

4. Water pollution caused by poor management and maintenance of the external environment.

In some cases, the secondary water supply system can also be polluted from outside, which can also cause periodic or sudden deterioration of water quality. For example, water pollution will be caused by water supply pipeline bursts, unfavorable renovation, open structure of water tanks and pool facilities, and untreated seepage prevention of underground water pools.

At the same time, the daily maintenance and management of some management units is not perfect, resulting in poor sealing of pools and water tanks, and no regular cleaning and disinfection of water supply facilities. Even cleaning is a simple removal of foreign substances such as sludge without disinfection, disinfection is an important part of the cleaning process, and incomplete disinfection will directly affect the safety of water quality.

In summary, all of them are the causes of secondary pollution of water quality. Therefore, in view of the "Regulations on the Management of Urban Water Supply Water Quality" for secondary water supply, the secondary water supply unit shall establish a strict management system and be equipped with professional personnel to manage and maintain the water supply facilities to ensure the safety of residents' water supply.

The secondary pressurized water supply is as clean as normal water, and the secondary pressurized water supply simply sends water to a higher water level.

Secondary pressurized water supply refers to the use of air pressure and other methods to increase the water pressure and send water to a higher water level in addition to relying on gravity, which can break the traditional high water tower model and directly supply water from the low to the high place.

If the height of the public building exceeds 12 meters and the residential building exceeds 6 floors, the secondary water supply facilities must be designed and constructed; Mixed-use residential buildings with two storeys or more are treated as public buildings.

The secondary pressurization is the municipal water supply to the building, generally to the floor or so, the pressure can not be satisfied, more than six floors of households belong to the secondary water supply, the secondary water tank is generally placed on the second floor of the underground or the roof, to be honest, the secondary water supply of the house should be set up in the house pre-water purification, conditional can be set up whole house water purification, in order to ensure the quality of water. ps: The water tank is not very clean.

As long as the pressurization equipment is clean, there is no problem with the water at all, and it is not necessary to add a pressurized pump to the pipeline, and it will not pollute the water source.

The secondary pressurized water supply is clean. The water comes from the water company.

However, it is not excluded that secondary pollution will be caused at the end, such as the water supply methods of water tanks and reservoirs in old residential areas, which are not cleaned for a long time, and secondary pollution is very common

Now there is basically no such situation, basically the use of non-negative pressure water supply, no water tank, reservoir, directly from the water pipe network to take water.

by-Bohai water supply.

Secondary pressurized water supply refers to the addition of a set of independent pumps, water tanks and other equipment in addition to the municipal water supply system, and the tap water facilities of residents or units are pressurized by pressurizing the water pressure. Due to the investment and operation and maintenance costs of the secondary pressurized water supply system, the secondary pressurized water supply is not billed according to the water consumption, but according to the fixed charging standard.

There are many factors that need to be considered in the design and construction of a secondary pressurized water supply system, including the quality and pressure of water supply, the direction and length of water supply pipelines, and user needs. Through pressurization, the quality of water supply and the stability of water pressure can be guaranteed, so that users can get a better water experience. However, for the secondary pressurized water supply system in different application scenarios, factors such as usage and time may be different, and it is difficult to charge by billing according to water consumption.

Therefore, the charging method of the secondary pressurized water supply system is usually a fixed base charge + additional charge for the amount of water and time out of range. This can better balance the interests of both supply and demand, and keep the water supply system functioning.

Secondary pressurized water supply refers to the pressurization of tap water through water pumps and other equipment after it enters the user's residence or office building to ensure that the water pressure reaches a certain standard. This type of water supply is independent of the user's water consumption, and is mainly to meet the water pressure requirements inside the building.

Generally speaking, the water pressure requirements inside the building are relatively high, and it needs to meet certain standards in order to ensure that users can use toilets, showers, and wash clothes normally. However, the water pressure in the water pipeline does not necessarily meet these requirements, so it is necessary to increase the water pressure by secondary pressurized water supply.

In addition, the secondary pressurized water supply can also ensure the stability of the water supply inside the building, avoiding the situation of unstable water pressure due to different water consumption. Therefore, although the secondary pressurized water supply is not billed according to the amount of water consumed, it can ensure that the user gets a stable water pressure in the process of using the water, which improves the user's experience.

A secondary pressurized water supply system is a method of increasing the speed and volume of water flow by increasing the water pressure. In this system, a pump pulls water out of the source and feeds it into the piping system. The water then flows through the piping system to where it is needed.

Secondary pressurized water supply systems usually do not supply water according to water consumption, but rather at a certain water pressure. This is because the flow rate of water and the pressure of water are inversely proportional during water supply. That is, the higher the water pressure, the faster the water flow rate and the greater the amount of water.

Therefore, in order to ensure the stability of water flow speed and water volume, the secondary pressurized water supply system usually supplies water according to a certain water pressure.

In addition, the secondary pressurized water supply system can also control the water pressure and water volume by adjusting the working state of the water pump. For example, when the water consumption is large, the water pump can increase the work intensity to increase the water pressure and water volume. When the water consumption is small, the water pump can reduce the work intensity to save energy and reduce water waste.

Hello. Water pipe pollution refers to the "primary pollution" of tap water through the main transmission pipeline, and the "secondary pollution" of the reservoir or regional transmission pipeline, because of the long-term stationary water pipe in the residential house, chemical reactions, impurity accumulation and anaerobic bacteria breeding, resulting in a series of health problems such as chronic poisoning of heavy metals, bacterial infection, cancer lesions, etc.

The tap water flow in the main pipeline of tap water is large, the flow rate is fast and the water pressure is very different, and the household water pipe is bent and bent more, after the tap water enters the pipeline of each house, the daily water use time is less than 4 hours on average, with the growth of the residence time of tap water in the user's pipeline, resulting in the rapid reduction of residual chlorine content in the water, turbidity, color, iron, manganese, lead, zinc, total dissolved solids, bacteria and other indicators increase, and they dry up, decay and ferment under the action of bacteria. Over time, it will form substances of different colors, foul smells, toxic and harmful to health up to 5-7 mm thick, and firmly adhere to the walls of water pipes. The tap water pollution problem that occurs in the above series of residential pipes is the "water pipe pollution" problem of tap water.

A large number of water quality test results tell us that the influence of the user's indoor pipeline on water quality is an important factor in the water quality reduction process of water transportation. According to the US Centers for Disease Control and Prevention, contaminants in drinking water can have serious health effects, ranging from gastrointestinal upset to neurological disorders. Respiratory complications due to infection are also common.

Most of the infectious diseases contracted by drinking unclean water will cause symptoms such as diarrhea, stomach cramps, fever, dehydration and vomiting. Among them, E. coli infections can cause diarrhea with blood.

Why should I clean my water pipes?

The most direct cause of water pollution is precisely the dirt accumulated in the water pipes; The wall of the tap water pipe that has been used for many years not only produces rusty water, obstructs the water flow, but also hides dirt and dirt in the pipe wall, hoarding various miscellaneous bacteria, micro-algae poison, arsenic, cadmium, mercury ......Toxic heavy metals, with the flow of water bit by bit by the human body absorption, after a long time of accumulation will inevitably cause children mental retardation, chronic diseases, kidney chronic diseases, liver lesions, stones, cancer and other diseases, from then on the body ......Japan, Europe and the United States have been cleaning water pipes regularly for 20 years, and many families in Japan are now paying close attention to it.

By cleaning the tap water pipes and installing the whole house water purification equipment, each faucet can flow out of the professionally purified water, whether it is for drinking, or kitchen washing, bathing and daily laundry water are purified and protected, fundamentally solving the problems of source water pollution and pipeline secondary pollution.