Cooling water pump control method, device, controller and refrigeration system
A cooling water pump and control method technology, which is applied in the field of controllers, refrigeration systems, devices, and cooling water pump control methods, can solve problems such as poor stability and poor energy saving of water pumps, and achieve the effects of improving stability and reducing energy consumption
Active Publication Date: 2022-07-12
丁一 +1
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[0005] The embodiment of the present invention provides a cooling water pump control method, device, controller and refrigeration system, which solves the problems of poor system stability and poor energy saving of the water pump in the existing frequency conversion control mode of the cooling water pump
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[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0041] The terms "first", "second", "third", "fourth", etc. (if present) in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to Describe a particular order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can, fo...
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Embodiments of the present invention provide a cooling water pump control method, device, controller and refrigeration system, the method includes: acquiring water temperature information of a plate heat exchanger and water temperature information of a cooling tower, information and the water temperature information of the cooling tower to determine the flow ratio of the plate heat exchanger; obtain the preset flow ratio of the plate heat exchanger; compare the flow ratio of the plate heat exchanger with the preset flow ratio The comparison result is obtained by comparing, and the operating frequency of the cooling water pump is controlled according to the comparison result. The flow ratio of the plate heat exchanger can be determined through the water temperature information of the plate heat exchanger and the water temperature information of the cooling water tower, and the cooling water pump is compared according to the flow ratio. The frequency conversion control can reduce the energy consumption of the cooling water pump and improve the stability of the system.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of air conditioners, and in particular, to a cooling water pump control method, device, controller, and refrigeration system. Background technique [0002] In the air-conditioning system, a cooling water pump needs to be used to drive the cooling water for circulating flow. The cooling water flows through the water pump through the plate heat exchanger for heat exchange. The temperature of the hot water decreases. [0003] In practice, the frequency conversion control method of the cooling water pump is mainly to control the frequency conversion operation of the water pump according to the temperature difference between the upper and lower water of the fixed cooling tower. This method cannot ensure the amount of water flowing through the plate heat exchanger, and the stability of the system is poor. . Alternatively, the variable frequency operation of the water pump is controlled acco...
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IPC IPC(8): F24F11/46F24F11/64F24F11/85F24F140/20
CPCF24F11/46F24F11/64F24F11/85F24F2140/20Y02B30/70
Inventor 徐世宇丁一许磊王明理
Owner 丁一