Regenerative energy-saving performance test device for air conditioning unit

Abstract

The invention discloses a regenerative energy-saving performance test device for an air conditioning unit, and the device provided by the invention comprises a condenser air outlet, an air vent, ventilation ducts, an electric air valve, an exhaust fan, an air inlet fan, an auxiliary low-power air conditioner, an outdoor test cell, a variable-frequency electric return air fan, an air flow balancer, a humidifier, an evaporator return air inlet, an evaporator air supply outlet, an evaporator, a condenser, a condenser air inlet, a mixing chamber and an indoor test cell, wherein the ventilation ducts are arranged at two sides of the outdoor test cell; the left and right walls of the mixing chamber are respectively communicated with the air vents at the lower parts of the ventilation ducts, theevaporator return air inlet and the evaporator air supply outlet; the air flow balancer is fixed at the part, communicated with the evaporator return air inlet, in the mixing chamber; and the humidifier is arranged in the air flow balancer. The device has the advantages of reasonable utilization of energy, energy conservation, environmental friendliness, simple system, small thermal inertia and quick working condition stabilization; and in addition, the test cycle is greatly shortened, and the test is can be operated conveniently.

Description

technical field [0001] The invention relates to testing equipment for an air-conditioning unit, in particular to a heat recovery and energy-saving performance testing device for an air-conditioning unit. Background technique [0002] With the rapid development of railway air-conditioned passenger cars and rail transit vehicles, the number of applications of top-mounted unit air-conditioning units has increased significantly. The maintenance workload of the air-conditioning unit undertaken by the corresponding operation and maintenance department has increased significantly. In this case, the maintenance department hopes to have a fast, reliable and convenient way to test the performance of the air conditioning unit, improve the maintenance efficiency, and meet the requirements of the maintenance regulations of the air conditioning unit. [0003] When the air-conditioning unit test equipment is tested under refrigeration conditions, on the side of the evaporator of the air-c...

AI Technical Summary

Problems solved by technology

However, the condenser side of the test air conditioner unit needs to remove heat, and this part of the heat is not used when the evaporator needs to be heated, which makes the test equipment of the air conditioner unit consume a lot of energy and wastes a lot of energy that can be used.

In addition, the heater has thermal inertia in the heating process and the auxiliary air-conditioning unit in the cooling process, which makes the test period long, the system is complex, and the operation is cumbersome, which brings great inconvenience to the test.

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