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Temperature online monitor system in underground heat exchange wells with vertical closed-loop pipes

     Experimental study of two different backfill materials to pipe heat exchanger thermal response performance, ground-source heat pumps to run right to the source temperature field role. Thermal response test found that yellow sand + bentonite backfill materials, the heat transfer is better than + bentonite slurry, thermal capacity of the former than the latter 11%. Of a ground-source heat pumps running tests found that in the underground pipe wall 10m to a maximum temperature of the soil in early September, the lowest temperature appears in early March, with the increase of the distance from the wells, well outside the measuring point temperature of the highest value of time delayed 2 to 3 months. Data show that one year after the well outside the underground temperature field measurement points are 1.9 ~ 2.2K, ranging from temperature, increased with the degree of distance from the wells increases.
    Vertical ground-source heat pump to pipe temperature measurement system is mainly based on an advanced digital sensor technology, field bus and on-line monitoring and analysis system. That it has the right ground-source heat pump heat exchanger in real-time temperature monitoring wells and save the data, in order to optimize the ground-source heat pumps designed to explore the ground-source heat pump with a reference value for the sustainable operation.

As shown below, the program structure diagram for the system, the system's important features:

1. Simple structure, a bus can be articulated 1-50 Root Sensors

Bus, three-wire system, all the sensors, like light bulbs can be directly hung on the bus.

2. Long distance bus. With strong drive module, common line, you can easily measure 100-300 m deep well

3. Dedicated deep soil testing, sensor, protection grade to IP68, can withstand pressures of up to 5Mpa.

4. Custom waterproof tensile cable, enhanced system stability and reliability of

Feature Summary: High sex price ratio, according to different needs, the absolute value than you imagine. For the U-tube diameter small problems, this system is the traditional platinum resistance temperature measurement system an ideal substitute.

Can be applied to:

1. To pipe backfill material and ground-source heat pump underground temperature field test analysis

2.U Vertical pipe heat exchanger between the heat-pipe Interference

3. U-tube ground-source heat pump system performance and underground temperature field of study

4. Ground-source heat pump to pipe experimental study of heat transfer performance

5. Ground-source heat pump to pipe heat exchanger heat transfer research

6. Underground heat exchanger within the heat transfer in the aquifer numerical simulation and experimental study of underground heat exchanger within the heat transfer in the aquifer numerical simulation and experimental study of

On-site program structure chart as shown below:

The system Technical parameters:

Support Sensor: SLST1-9 Deep dedicated digital temperature sensor

Maximum Logging Depth: 400 m

Sensor voltage capability: 5Mpa

Minimalist configure devices:

Remote temperature acquisition module + cable + sensor-specific logging

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System functions:

1, the temperature on-line monitoring

2, alarm function

3, data storage, time to save the settings, SMS, alarm (optional, GPRS Remote)

   Practical engineering software site map:

 

Remote temperature acquisition module

 

Hits£º   Date£º 2009-12-23  ¡¾Print this Page¡¿ ¡¾Close¡¿