With the rapid development of China’s construction industry, in the process of the development of the construction industry, building heating has made some achievements, but there are still some common problems in the design of building heating
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The common problems of building heating design have caused serious trouble to people’s lives, and there are many problems
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Only by ensuring the scientificity and rationality of building heating design, can we make the building heating more efficient The normal operation of the system brings convenience to people’s life
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Common problems in the design of water heating and the problem of the entrance to the house device in the hot water heating system have serious problems
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In the process of building water heating design, as designers, we must consider the problems of the entrance to the house device, but often many designers will ignore this device, some building heating engineering in the process of design, as an example In the process of drawing drawings, the designers of drawings will not label the entrance devices, which will bring great difficulties to the later review of drawings, and in the process of drawing review, some people will also neglect
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In the process of HVAC construction drawing design, designers need to design the corresponding ventilation design specifications
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In this case, they need to carry out the corresponding design in strict accordance with the corresponding specifications, so that the design of the entrance device can meet the basic requirements of the design
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In the process of design, they also need to set two-stage filters on the water supply pipe of the thermal inlet The number of heating entrances must be scientific and reasonable, so that the building heating can meet the basic needs of people, fully considering the connectivity of indoor HVAC system and outdoor pipelines, but in the process of entrance setting, there are still serious entrance design problems
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In the process of laying water and heating pipelines, it is necessary to reserve pipeline holes in advance
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In this case, it is necessary to ensure the scientificity and rationality of the whole building structure
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The reserved holes need to be reasonable in the location setting, size design and elevation of the holes, but there are still a series of quality problems in the actual reservation Disease, that is to say, people ignore the control of elevation in the process of hole reservation
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Elevation has an important impact on hole reservation
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If elevation is ignored, it will easily lead to waste of construction materials, and there will be certain economic losses in the process of construction
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In addition, it is also very important for the operation of heating system If the elevation of water reserved hole is not accurate, it will have very serious consequences, and if the elevation design is unreasonable, it will also lead to the serious phenomenon of poor drainage
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In the process of building engineering heating, the heating system can not meet the corresponding requirements, especially in the process of engineering design, it must be scientific to reserve the hole And in the process of setting, we should fully consider the comprehensiveness and accuracy of the design
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Heat medium temperature design problem heat medium temperature in the design process, need to meet the basic requirements of safety, economy and comfort, and in the heat medium design process, heat medium temperature design must be comprehensive consideration, in this case can meet the actual needs of the heating system, especially in the process of floor heating design, floor heating design problem If it is in the place where people often stay, then the temperature needs to be controlled between 24 ℃ and 26 ℃, which also has the upper limit of temperature
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The upper limit of temperature is 28 ℃
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If it is in the place where people stay, then the temperature needs to be controlled at about 28 ℃ – 30 ℃, and the maximum temperature can not exceed 32 ℃
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If there is no personnel stay, then the temperature can be about 35 ℃ – 40 ℃ However, the highest temperature can not exceed 42 ℃
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The “heat” in the problem of heat meter overcharge is a kind of commodity, and the problem of measurement charge is closely related to people’s life
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If the heat meter is too large, it will cause certain security problems to the relevant residents, and it will have a greater burden
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If the heat meter is small, then the residents will pay less, and it will also affect the economic development of enterprises In this case, heat metering needs to be scientific and reasonable
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The heating cost of residents in our country is that the residents pay the heating cost directly, and the residential buildings need to be measured by households, which will also have an important impact on the economic benefits of our country
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This measurement method is also the focus of the heat metering reform in our country
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Through the implementation of this system, in the process of the implementation of the system, we need to calculate the heat load scientifically, at the same time, The method of heating design must be changed sufficiently
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Water supply and waterproof problems: the pipes and fittings used for domestic water supply and drainage are different from those used for heating
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The pipes and fittings used for domestic water supply and drainage must meet the sanitary requirements of domestic water pipes
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At present, plastic pipe and aluminum-plastic composite pipe are widely used in domestic water supply and drainage pipes in our country, because these two types of pipes have corrosion resistance, but their impact resistance is poor
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Now, most of the water supply and drainage risers and heating risers are laid in the same pipe well, so the water pipes are not firm
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The waterproof problem of building plumbing engineering is also very important
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Leakage is one of the common quality problems in construction engineering
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Unreasonable burying of the upper part of the pipeline, too large size of the reserved hole for the riser to pass through the floor, unqualified plugging, improper connection of the pipeline and other reasons will cause the leakage of building plumbing
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Scientific management of the heating system in the heating system design, first of all, the boiler room equipment modeling should be reasonable; secondly, the pipe network design should be strict and accurate hydraulic, blower and induced draft fan calculation, select the appropriate pump, ensure the flow between users, hydraulic balance, to ensure the whole system supporting, avoid unnecessary energy loss
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In addition, the operation of the heating system is controlled by instruments and microcomputers
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The parameters such as the pressure and temperature of supply and return water and the heat production of the boiler should be automatically detected and displayed
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The water supply, combustion and exhaust systems of the system should be automatically adjusted
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Scientific management and automatic control should be implemented, and daily and regular maintenance of the equipment and system should be strengthened
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Common problems in floor heating design construction drawing design construction drawing design is a crucial link in building floor heating design
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Only when the construction drawing design is scientific and reasonable, can the operation quality of building floor heating system be guaranteed
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However, many of the building heating design in its description is not complete, many of the building heating is not in strict accordance with the relevant provisions, and even the content of the drawing is missing
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The design of floor heating construction drawings should be based on the system calculation of the material thermal resistance of the floor decoration layer, indoor design temperature, effective heat dissipation area and other relevant parameters, so as to determine the spacing of heating pipes
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At the same time, the staff of building floor heating design should be familiar with the performance and characteristics of various materials
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Ensure the combination of design and construction, can effectively guide the construction, reduce the difficulty of the specific construction process
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There are two calculation methods for the design of main pipe of floor heating
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One is determined by heating load and water temperature difference between supply and return, and the other is determined by the minimum water flow rate of floor heating coil
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The greater of the two should be taken
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If we check the water flow according to the heating load and the water temperature difference between supply and return in the design, the air plug will destroy the system circulation due to the insufficient flow, resulting in the frequent air storage in the heating system, resulting in no heat
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Every part of the building heating design is closely combined, and every link is closely related
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The negligence of a detail leads to the imperfection of other links, which leads to many problems in the whole building heating design system, brings great trouble to the building heating, and seriously affects the daily life of residents.
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