保定专业水电改造施工

地暖改造的三大要点

暖气和地暖供回水温

Heating and ground heating for the return of water temperature

地暖是将温度不高于60℃的热水或发热电缆，暗埋在地热地板下的盘管系统内，再加热整个地面，通过地面均匀地向室内辐射散热的一种采暖方式。暖气的供回水温度一般是95/70℃，而地暖的供回水温度不高于60/50℃。如果整个小区是暖气采暖，只有单层用户想改装地暖，为确保加热盘管使用寿命，通常做法是在供回水进户处增设板式换热器或混水降温装置。这一装置的安装，能把采暖系统高温水置换成低温水，安装时切记不可直接将地暖管与采暖供回水管道相接。如直接相连，地暖管承载水温过热会致使管材损坏，影响地暖系统的寿命。

The floor heating is a hot water heating cable with a temperature of not more than 60 degrees, which is buried in the coil system under the geothermal floor and reheated the entire floor, which radiate heat evenly through the ground. The temperature of the supply and return of the heating is generally 95/70 C, and the temperature of the supply and return of the warm water is not higher than that of 60/50 C. If the estate is heating heating, only a single user wants to warm, to ensure that the service life of the heating coil, the usual practice is to return water into the outdoor heat exchanger or adding water mixing cooling device. The installation of this device can replace the high temperature water of the heating system into low temperature water, while the installation of the heating system can not directly connect the heating pipe and the heating supply to the return water pipe. If directly connected, the overheating of the heat pipe will cause the pipe material to be damaged, and the life of the earth heating system will be affected.

阻力平衡问题

Resistance balance problem

地暖的阻力比暖气大，约为暖气的十倍之多。在改装地暖时如果盲目在原暖气系统上增设加热盘管，可能导致暖气系统压力不足，热水难以循环，整个地暖系统难以正常运行散热。因此在改装时，建议增设混水恒温装置，通过循环泵强制循环。注意：如果增设混水装置时，由于难以估算原暖气系统阻力，选择的循环泵过大时，有可能会影响其他用户正常采暖。专家建议在循环泵增设一个旁通，如果阻力过大不能满足地暖系统时，可开启循环泵。

The resistance of the earth's heating is greater than that of the heat, about ten times as much as the heat. If the heating coil is added blindly to the original heating system, it may cause the pressure of the heating system is not enough, and the hot water is difficult to circulate, so the whole floor heating system is difficult to run properly. So in the modification, adding water thermostat recommendations through the circulation pump forced circulation. Note: if the adding water mixing device, because it is difficult to estimate the original resistance heating system, circulating pump selection is too large, it may affect the normal heating of other users. Experts suggest that a bypass pump be added to the circulation pump, and if the resistance is too large to meet the heating system, a circulating pump can be opened.

地暖管盘不宜过长

The heat pipe plate should not be too long

地暖管盘越长，产生的阻力越大，运行时耗电越多。这就要求各个环路的长度不要相差太大，以免水力失调，造成有的环路热，有的环路不热。一般各个环路长度差不要超过10%，各管路以不超过120米为宜。

The longer the heat pipe plate is, the greater the resistance is, the more electricity is consumed in the operation. This requires that the length of each loop do not vary too much, so as to avoid hydraulic imbalance, cause some loop heat, and some loops are not hot. In general, the length difference of each loop is not more than 10%, and each line is not more than 120 meters.