【 Weak current College 】 capillary network achieve radiant cooling and heating

Capillary network of three features to start understanding the capillary network. These three characteristics are: structural characteristics, materials (physical and chemical) features, use characteristics. Structural characteristics: capillary network is divided into water structure, with heat transfer area of large, heat evenly, heat shifting, hydraulic losses small features that determine the capillary network is a highly efficient heat exchanger. Material characteristics: production of the raw material of capillary network can be PP-R, PE-RT or PB-melt moulding, is green raw materials, with high temperature, high pressure, corrosion resistance, resistance to high temperature of 95 degrees can, acid and alkali resistance and corrosion resistance of solution, you can, then 5.6MPa pressure by capillary network can have a wide range of uses, is the ideal high-efficient heat exchanger. Use the feature: capillary network of light, soft and loads of small, reasonable structure, excellent performance, therefore has the easy installation, high efficiency and energy saving, high comfort, green features.

Precisely these characteristics of capillary network, determine the capillary network a wide range of uses. First of all, capillary network can build ecological architecture. Outdoor energy from sunlight, air or soil, through a capillary network of media uniformly dispersed into the indoor ceiling, floors or walls. Capillary network and interior surface decoration layer, like skin capillaries, like soft to adjust the room temperature. Slowly bring the breeze of fresh air, no more odor indoors, there is no longer a formaldehyde and carbon monoxide pollution, reasonable humidity moisturize your skin and the respiratory system, furniture, clothing, food or mouldy and insect bite, this is the "constant temperature and humidity constant oxygen" ecological housing. A medical expert on capillary network this description: "the entire capillary network temperature regulating system can be regarded as human blood circulatory system, set content type capillary network is the capillaries, backwater trunk pipe is arterial and venous blood vessel and crew (including water) is the heart of carrier media is the blood, and intelligent temperature control device is the nerve and brain. Aided by new air system is the respiratory system, regulate moisture and air quality. The real significance of ecological building! "

This is a capillary network of thermal imaging in pictures: capillary network, like control of lighting as control of room temperature! floor heating thermal inertia to 4-6 hours, 5 minutes by capillary network allows radiation surface temperature, significant changes in room temperature for 30 minutes, it is easy to implement individual room temperature control. Capillary network is the cornerstone of ecological air conditioning technology, outstanding merit is comfortable, energy-saving. Install a capillary network of environment there are caves effect: winter feeling warm sunshine, enjoying the cool shade of the summer!

Capillary network can be collected using low grade energy. In future, the power plant's wastewater discharge will not be in vain, capillary network of rows set to thermal power plant of drain, most of the heat extracted through the media direct to surround the new construction or old buildings, meeting their living space heating. Capillary network can be routed in the airport runway, highways and city streets, in winter during the day the sun radiation of heat energy collected, underground storage, the snow, this system particularly vulnerable with storage in the soil of the thermal energy of snow and ice removal, solved the artificial snow's not timely and wasting resources, also to avoid the use of chemical reagents snow polluted environment. Building the Foundation laying of capillary network below should, for the collection of underground soil temperature environment of energy, supplementary building heating and cooling energy consumption needs.

Capillary network have a wide range of civil, agricultural, industrial and military uses. Gravity circulation air-box, which can be used for heating, cooling, ventilation and dehumidification can be used not for large area laying of capillary network or specialized as a desiccant. Water source heat pump's heat exchanger, front made cage set at sea or in lakes and rivers, not only greatly improve heat transfer efficiency, and easy installation and use of safety features. Hospital wards and operating room, food processing, electrical Assembly workshop, etc., for indoor temperature and humidity high places. Construction of the rink, ski resorts, etc. Agricultural greenhouse farming, planting, breeding and breeding, off-season vegetable, increase output, the construction of grain storage, cold storage, wine cellar, etc. Liquefied gas, flammable or explosive chemicals storage and transport facilities, external temperature, increase security and storage efficiency. Hidden underground military bunker, personnel and equipment to produce large amounts of heat energy emitted into the environment in a timely manner to avoid exposure.

Capillary network after all of us is a new product, people use some worry, here I leave you worry or concern issues summary, are actually a capillary network applications should be aware of and address the problem. We have to understand, capillary network just a product, the product itself is not a panacea, the only person who is almighty; product will not be perfect, through rational design and use can be made. Capillary network there are advantages and disadvantages, the disadvantages of capillary network is in use, you should be aware of the problem is in the application needs to solve the problem, we are often concerned about.

1. refrigeration dew. You have to know what circumstances condensation, only cold radiation surface temperature below the dew point temperature in room air, condensation will occur. (1) high temperature of around 18 ° c cold water cooling, through the pipe wall and then to the decorative surface, decorative surface temperature of about 21 ° c, dew point temperature is generally higher than; (2) increased capillary network pavement area, further enhance the cooling water temperature, reduces radiation surface and interior temperature difference, you can increase the cooling capacity; (3) reduced by fresh air dehumidifying, guarantee the dew point 50 per cent relative humidity; (4) we also developed a dew point detector this product, prior control, appears when you close the water condensation risk or increase the new amount of wind to avoid any possible mistakes.

2. finished product protection issues. (1) try to do a presetting, avoid construction damage capillary network; (2) by soft, spacing can be adjusted over the former does not affect the electrical pipes, electrical boxes, sockets, etc. (3) more by capillary network of high pressure-resistant, bursting pressure 5.6MPa.

3. damage to fix the problem. (1) parallel structure, hot melt, damage with a lighter do tool can repair; (2) capillary network General in decorative surfacings, leakage isEasy to find and fix.

4, easy to blocking issues. (1) as far as possible the closed small circulation system, water supply managers installed filter, to prevent particles from entering the capillary; (2) plastic oxygen permeation, long-running pipe breeding Biofouling blocking capillary, determine if the system does not leak not permeable to join deoxidizing agent or antifreeze, destroy the biological growth environment; (3) machinery deoxyribonucleic slag removal.

5. wall cracking. From heating to cooling wall temperature does not exceed 20 ° c, constant wall temperature comparison, cracking usually decorative. To ensure foolproof, using flexible polymer mortar and two road boxianwang.

Capillary network of potential applications is enormous. Capillary network to achieve mass production of localization and will greatly reduce the cost of production and use, and provide for extensive application. At present, the platform has developed a capillary network of production and application of enterprise standards, adopted the Ministry of construction industry science and technology achievement appraisal, the Ministry of science and technology development center, Ministry of construction of the housing industry Center, Beijing science and Technology Commission in promoting and already guoaocun this application in the national key projects. Platform capillary network production base in many support is under construction, this year will achieve an annual output capacity of 60 000 square meters, with the needs of the market can be quickly extended to produce 20 million square meters in size. Capillary network to its technical and economic advantages will be popular as a stealth radiator, ultra-thin floor heating and air conditioning Terminal. Application of capillary network comply with the national energy-saving emission reduction and consumption, housing industrialization policies that meet people's living standards and continuously improve the comfort and health requirements. The following picture is the capillary network of successful solutions.

Finally, there are three groups of contrast to explain.

1, domestic and imported products capillary network. National Authority test data speak, speak with science, on the fact that domestic capillary network of good performance to meet the various requirements.

(1) national chemical building materials test center of the report;

A, blasting, burst pressure 5.6MPa

B, by circular pressure shock testing, 10000 cycle

C, passed the 5000 times thermocycling test

D, 8760 hours of testing, the interim report.

(2) the national air conditioning equipment quality supervision and inspection Center reports. For example:

A, materials in water temperature 45 ° c, water temperature 40 ° c, a datum point 20 ℃,

Δ T = 22.5 ℃, the unit area dissipation Qdr = 240.88W/m2;

B, sample in water temperature 15 ° c, water temperature 20 ° c, the temperature of 26 ° c reference point,

Δ T = 8.5 ℃, the unit area dissipation Qdl = 122.84W/m2.

(3) raw materials. Use the Nordic chemical raw materials, Korea PP-R SK PE-RT raw materials are of a successful product.

(4) processing costs much lower.

(5) availability guaranteed, generally within two weeks of May.

(6) service more guaranteed.

2, capillary network of radiation and floor heating. Normal floor heating:

(1) multiple space, increase the load, 80mm reduce storey;

(2) thermal inertia 4-6 hours;

(3) economics.

A, itself around 60 Yuan/square meter;

B, increase reinforced 8.5 Yuan/square meter;

C, increase the bean stone concrete 32 Yuan/square meter;

D, layer high reduction of 3% convertible into approximately 500 Yuan/square meter.

(4) common floor heating is not suitable for refrigeration.

3. application of capillary network of ecological air conditioning technology and traditional central air conditioning.

Conventional air conditioning systems to take temperature and humidity mixed approach, there are the following issues:

(1) energy waste. Using a set of simultaneous cooling and dehumidification system, to meet with condensation methods excluding indoor residual humidity, cold source temperature needs to be far below the indoor air dew point temperature, usually 5 to 7 ° c chilled water. Air conditioning system, more than half of the total load of sensible heat load, this may take the discharge temperature cooled source, but together with desiccant share 5 ~ 7 degrees centigrade cold source is processed, the resulting energy use grade on waste.

(2) it is difficult to adapt to the change of indoor thermal ratio. The same set of air conditioning systems on air for cooling, the absorption of sensible heat and latent heat ratio can only be used within a certain scope changes, while the Interior of the actual scope of heat and moisture ratio. Conventional air conditioning will normally be at the expense of humidity control, only to meet the requirements of the indoor temperature, indoor humidity often result in too high or too low. Relative humidity is too high for feeling stuffy uncomfortable, through further reduce temperature to improve thermal comfort, resulting in increased energy consumption unnecessary; relative humidity is too low then increasing processing power of outdoor fresh air.

(3) resulted in the reduction of indoor air quality. Conventional air conditioning relies on the air through the cold surface to air for cooling and dehumidification, causing the cold surface moisture even stagnant water, the air conditioning down after it is wet surface becomes the ideal place for mold propagation. Conventional air conditioning systems and spread into moulds propagation indoor environmental pollution and health. In addition, currently, most of the city's main pollutants are respirable particles from the air conditioning system introduced in outdoor air must be filtered, filters must be dust and bacteria aggregation service, if bleaching splash some condensation water, a variety of bacteria, an ideal place for microbial reproduction, even with Legionella outbreak "threat." Frequent cleaning of filters is neither practical nor are the fundamental solution.

(4) general air conditioning terminal device limitations. More than enough to excludeHeat remaining wet without the air temperature is too low, there is a large circular ventilation rates, often resulting in indoor air flow in a large, strong winds caused discomfort and noise. Interior layout of the air channel also reduce indoor floor space in height or greater. In winter, in order to avoida sense of strong blowing and drying of the discomfort, and high energy consumption, even if the installed air conditioning system, it is best not to use the hot-air heating, but should go through another set of heating systems (such as radiator, floor heating) and heating. In northern areas, indoor general need to repeat the installation of two sets of environment control system used for winter and summer, respectively.

(5) transmission and distribution of energy consumption. In order to complete the task of the indoor environment control requires a transmission and distribution system, taking away waste heat, humidity, CO2, odours, etc. Conventional air conditioning system all of cold air to transmit all resulted in the transmission and distribution efficiency is very low, fans, pumps consume the entire air-conditioning system 40% to 70% of electricity consumption. In contrast, the conveying of 1m3 water heat and air conveying of 3840m3 calories is the equivalent, the interior surface radiation heat transfer is the most comfortable and energy-saving manner.

(6) causes the power crisis. Building energy consumption accounted for the entire community of 40 per cent of total energy consumption, with the increasingly serious problem of energy, to low grade energy solutions to the problem of building of heating refrigeration, in particular become an urgent need to slow the summer power supply pressure, improve energy utilization. Conventional air conditioning load in one day change significantly, easy to concentrate on the peak, in residential areas also "heat island effect," increase power crisis. If the indoor heating refrigeration system can be effective energy, will be very beneficial to reduce peak electricity crisis, through the energy-saving to interior surfaces and then to spread evenly radiated manner is a very good solution.

For the above analysis, the conventional air conditioning systems technical defects apparent to capillary network technology as the core of temperature and humidity independent control of air-conditioning technology represents the future direction of development, with a high comfort and energy-efficient features. Capillary network will also be applied to broader areas, changes in human life in the future!