A water-water type/water-glycol type water source heat pump unit performance test device

Abstract

The invention discloses a water-water / water-glycol type water source heat pump assembly performance testing device. The w water-water / water-glycol type water source heat pump assembly performance testing device is of a pipe water mixing / dividing wall heat exchanging structural design and comprises a cooling water system, a coolant water system, a pipe water mixing / dividing wall heat exchanging system, a heat dissipation system and a glycol solution storage system. According to the water-water / water-glycol type water source heat pump assembly performance testing device, test determination and calculation on main tests on the coolant water side is performed through liquid coolant; test determination and calculation on verification tests on the cooling water side is performed through an assembly heat balancing method, so that the performance parameters such as the refrigerating capacity, the refrigerating power consumption and the refrigerating energy efficiency ratio and the important technical parameters such as temperature and flow of the water-water / water-glycol type water source heat pump assembly can be measured accurately, and importable means can be provided for performance testing and development research of the water-water / water-glycol type water source heat pump assembly. The water-water / water-glycol type water source heat pump assembly performance testing device has the advantages of being energy-saving in operation, accurate in testing results and capable of achieving all-weather all-condition testing.

Description

technical field [0001] The invention belongs to the field of water source heat pump unit test devices, and in particular relates to a water-water type / water-ethylene glycol type water source heat pump unit performance test device. Background technique [0002] Water-water type / water-glycol type water source heat pump unit performance test device is a test device that can provide water-water type / water-glycol type water source heat pump unit with performance test under test operating conditions. Accurately measure performance parameters such as cooling capacity, cooling power consumption and cooling energy efficiency ratio of water-water type / water-glycol type water source heat pump units, as well as water inlet and outlet temperature of evaporator, water inlet and outlet temperature of condenser, pressure difference between inlet and outlet of evaporator, The technical parameters such as the pressure difference between the inlet and outlet of the condenser, the water flow ra...

AI Technical Summary

Problems solved by technology

The water-water type water-source heat pump unit performance test device with the water tank-mixed water structure designed with this constant temperature water tank is not only complicated to operate, but also slow to adjust the operation of the equipment, and cannot satisfy the cooling water temperature of the outlet cooling water of the water-water type water-source heat pump unit is lower than that of the refrigerant water. Water temperature test conditions requirements

[0004] Chinese patent CN102288421A discloses a variable-capacity chiller test device. When this test device is used for water-water type water source heat pump unit performance testing, it meets the test that the temperature of the imported cooling water of the unit under test is lower than that of the refrigerant water temperature. However, when the temperature is high in summer or some special working conditions (cooling water outlet temperature is low), it cannot meet the test conditions. The water temperature test range is narrow and cannot meet the test conditions of all-weather and all-working conditions. This test device can only be used for the performance test of ordinary water-water type water source heat pump units, and cannot meet the performance test tests of water-ethylene glycol type water source heat pump units with ethylene glycol secondary refrigerant circulation.

[0005] The existing water-water type / water-glycol type water source heat pump unit performance test device generally only has one installation station for the unit to be tested, and the unit connection type is single

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