Circulating water system and the relationship between indoor
Heating system in the past, due to the lack of easy traffic Test And reliable means of flow control components, for a system is concerned, how much heat flow can ensure the requirements, we do not have a specific number; for a heat users, how much heat flow can ensure the requirements, we without a clear figure.
Recent years, many heating systems use heat Langfang love can set Limited production "Love to card" from the vertical flow control valve, the valve depend on reliable quality and excellent flow control performance, effectively control the circulation of water, that is, to solve the balance of the heating system, but also for our correct understanding of the water cycle provides a strong basis. In 10 years, hundreds of heating units heating practice, we found the indoor system for circulation of different water requirements are different.
A traditional-style interior on to the next time the system required a minimum flow
On to the next time systems in the interior of China belongs to the mainstream system, even in many parts of the massive transformation of the sub-family today, the number of such systems are still a lot. For such systems, calculated according to heating area, about 3 kilograms per square meter of the cycle need to water, to meet the heating needs. For colder areas or indoor system of vertical imbalance settlement was not a good area, circulation rate should be larger for the less cold areas or indoor system of vertical imbalance is resolved the better areas, circulation rate can be as small that change can range between 2.7-3.3. Such as Harbin, "Hafei" back office, using my company in 2001 from vertical flow control valves, circulating water, 3 kilograms per square meters, Heating Good effect.
Second, the original transformation of a housing part of a single tube series system
Transformation of a part single-tube series system, this system since the original design from the top floor to the first floor of the theory is based on the design temperature drop, according to each layer Radiator Inlet temperature of different configurations of the radiator, but for a part of the transformation, the radiator or the original configuration. The actual heating runs, each layer of the radiator inlet temperature are the same, resulting a low-level users much more than the phenomenon of high-level user hot. For such systems, according to the same uniform inlet temperature profile on each floor of the radiator is the best solution. However, the best way is not necessarily feasible solution, because of funding problems and transform the difficulty, this method does not work. Then only be resolved by increased traffic, according to the experience of the past few years, reconstruction of housing for the original part of a series single-pipe system, circulating water, generally about 4 kg, enough to meet heating needs. For colder areas or indoor systems in the disorder was not a good solution areas, recycling volume to larger, less cold areas or for the indoor system, the level of disorder is resolved the better areas, circulation rate can be as small that the rate of change can be between 3.5-4.5. If Dongling district heating company in 2001, my company from using the vertical flow control valves, flow rate was 3 kg per square meter, the effect of slightly worse, in 2002 the flow rate was 3.5 kilograms per square meter, up for heat requirements.
Third, the new one aspect of the system
A part of the new system, regardless of the level of the single-tube series system, or dual systems, because of the temperature drop theory was a reasonable basis, the heat sink configuration is rigorously designed, so the cycle water is relatively low, according to the experience of the past few years, usually set to 3.3 kg per square meter of water cycle on the meet the heating needs. For colder areas or indoor systems in the disorder was not a good solution areas, recycling volume to larger, less cold areas or for the indoor system, the level of disorder is resolved the better areas, circulation rate can be as small that changes in the rate of 3-3.5 kg per square meter in between. If Jilin Urban Property Corporation, the company in 2002 using self-supporting flow control valves, flow set to 3.5 kilograms per square meter, the effect of good will flow in 2004 is set to 3.3 kg per square meter, heating is relatively normal .
On to the next time the traditional-style interior systems, according to those recommended by the cycle of 3 kilograms per square meter of water, in most cases be able to meet the heating needs for the transformation of existing housing, part of a single-tube series system and a part of the new system, due to regional differences and different design, first proposed in the recommended flow rate according to the text value set to observe the effects over time, and then determine the increase or decrease flow, and as a basis, development of circulation flow in this district.