Water source heat pump well water flow energy saving automatic cotnroller
An automatic control device, water source heat pump technology, applied in flow control, non-electric variable control, mining fluid, etc., can solve the problems of waste of electric energy of water pump motor, waste of groundwater resources, etc.
Active Publication Date: 2008-05-14
SHANGHAI CREDY INTELLIGENT TECH
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Problems solved by technology
Therefore, when the load on the user end is small, the water pump still runs at full speed and provides well water flow according to the situation at full load, which causes a waste of electric energy of the water pump motor, and is also a waste of resources for groundwater.
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[0008] Such as figure 1 As shown, the present utility model is connected to the inlet pipe 7 and the return pipe 8 of the water source heat pump unit 1 with an inlet water temperature sensor 2 and a return water temperature sensor 3 respectively. The two temperature sensors are respectively connected to the unit controller 4, and the unit controller is connected The frequency converter 5 is connected to the motor 6 of the well pump. The temperature difference between the inlet and return water and the processing program are preset in the unit controller. The unit controller calculates the temperature difference according to the collected actual inlet and return water temperature and compares it with the set water temperature difference. When the actual When the temperature difference is greater than the set temperature difference, it means that the user's actual load is too large at this time, and the well water flow needs to be increased. The controller increases the current or v...
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It is energy conservation automatic control system of water source heat pump well water flow. It is made up of water inlet temperature sensor, return water temperature sensor, machine group controller, frequency converter and well water pump electric machine. Its feature is, in the well water admitting pipe and the return pipe of the water source heat pump assembly, there are their each influent water temperature sensor and return water temperature sensor. The influent water temperature sensor and return water temperature sensor connects each machine set controller, then the machine set controller connects with transducer, finally the transducer connects with well water pump electric machine. The device can control the well water flow automatically according to the actual load quantity. Whatever the controller increases or decreases the output of the water flow, it can keep the system load automatic balance and make it in the stable condition.
Description
Technical field [0001] The invention relates to an automatic control device for the well water flow of a water source heat pump unit in an air conditioning refrigeration system. Background technique [0002] One of the air-conditioning and refrigeration equipment is called water source heat pump unit equipment because it can use underground well water as a cold and heat source to obtain high energy efficiency ratio, which is deeply welcomed by users. When the water source heat pump unit is working, the low-grade heat source in the groundwater is converted into a high-grade heat source for use by the user through the heat pump unit. The heat or cold obtained by the user is actually taken from the groundwater, so it has the advantages of low cost and high efficiency. . In other words, within a certain temperature range of groundwater, the heat equivalent or cooling capacity obtained by the user is roughly proportional to the flow of groundwater. But the normal water source heat pum...
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IPC IPC(8): G05D7/00G05D23/00E21B43/12
Inventor 邓平安陈松年
Owner SHANGHAI CREDY INTELLIGENT TECH