Water source heat pump central air conditioning water source well inside and outside integrated welding type same well recharge device

Abstract

The invention discloses a water source heat pump central air-conditioning water source well internally and externally welded in the same well recharge device, comprising a water source well and a well cover, an inner well pipe and an outer well pipe, a water outlet pipe, a return pipe and a water pump, the inner well pipe The outer well pipe is composed of multi-section unit bodies, which are respectively: well pipe section unit body, isolation section unit body, wellhead unit body and well bottom unit body. The invention can be manufactured and processed industrially, unifies and standardizes product specifications, avoids the problem of axial misalignment of inner and outer wells, ensures operability of sealed connection, and improves the quality of sealed butt joint. It is conducive to rapid and accurate positioning and construction on site. It avoids the trouble of proofreading after installation and the problem of poor butt seal after installation. The speed of pipe installation is at least doubled, and the time for later maintenance and replacement of submersible pumps is shortened from 3 to 4 days to 7 to 8 hours. .

Description

Technical field [0001] The invention involves the problem of water source wells in the field of water source thermal pump central air -conditioning technology and the problem of back irrigation and irrigation and heat and heat exchange. In particular, a water -source heat pump central air -conditioning water source well sealing docking and water -based water returning equipment. Background technique [0002] The central air conditioner of the water source heat pump is based on the constant temperature of the groundwater as the medium for a long time. The heat pump unit is used to increase or reduce the water temperature to achieve the purpose of cooling and heating, and provide a central air conditioner for the building with cold and heat source.Due to its high energy ratio, it is 40-60%compared to other forms of central air -conditioning energy. The energy saving and consumption reduction effect is significantly favored by the government, agencies, and enterprise units, and at t...

AI Technical Summary

Problems solved by technology

The outer well pipe is provided with a contact surface and an isolation structure that cooperates with the outer wall of the inner well pipe. Only when the lengths of each contact section are exactly the same can they maintain a sealed connection with each other, but it is actually difficult to achieve the purpose of all sealed connections

Since the depth of the well is usually hundreds of meters, the outer well pipe and the inner well pipe are welded separately. After the inner and outer well pipes are lowered into the well, the displacement or welding errors are relatively large, and the corresponding standards are not uniform, which leads to the contact between the inner well pipe and the outer well pipe. Poor sealing performance

Since the sealing and docking process takes place in the underground, it is in a blind spot, and cannot be maintained by people, so it is difficult to grasp the connection effect and sealing effect, and the submersible pump in the future will be time-consuming and labor-intensive, which will affect the use of the air conditioner for a long time

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