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Ice storage air-conditioning system and method for optimizing control method of ice storage air-conditioning system

An ice cold storage air conditioner and branch pipeline technology, which is applied in the direction of air conditioning system, heating and ventilation control system, heating and ventilation safety system, etc., can solve the problem of low optimization accuracy, inaccurate setting of cooling water inlet temperature and cooling power), Unable to meet the cooling demand and other problems, to achieve the effect of accurate optimization method, reasonable control method, and reduction of electricity bills

Active Publication Date: 2017-09-01
TIANJIN CHENGJIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention proposes an optimization method for an ice-storage air-conditioning system and its control method, which not only solves the problem of the simple parallel connection between the dual-working-condition main engine, the three-working-condition main engine, and the ice storage tank, which cannot meet the needs of people in various time periods every day. The problem of the cooling demand is solved, and the problem of low optimization accuracy caused by the inaccurate setting of the dynamic variables (that is, the cooling water inlet temperature and cooling power in the prior art) in the optimization of the existing control method is solved.

Method used

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  • Ice storage air-conditioning system and method for optimizing control method of ice storage air-conditioning system

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Embodiment 1

[0029] This embodiment proposes an ice storage air-conditioning system, including:

[0030]A cooling water system, which includes a water collector 11, a water separator 12, a cooling water pipeline, a system circulation pump 13, a base load machine circulation pump 14, a first valve 15, a second valve 16 and a third valve 17, the cooling water pipeline Including the main pipeline 181, the first branch pipeline 182, the second branch pipeline 183, the third branch pipeline 184, the fourth branch pipeline 185, the fifth branch pipeline 186 and the sixth branch pipeline 187, the first branch pipeline 182 and the second branch pipeline The pipeline 183 is connected in parallel, the third branch pipeline 184 is connected in parallel with the fourth branch pipeline 185, the fifth branch pipeline 186 is connected in parallel with the sixth branch pipeline 187, the parallel connection end of the first branch pipeline 182 and the second branch pipeline 183, the third branch pipeline 18...

Embodiment 2

[0056] This embodiment provides the present invention based on Embodiment 1 and also proposes an optimization method for the control method of the ice-storage air-conditioning system, including:

[0057] Step S1: Determine that the equipment that affects the electricity bill is: the main unit with three working conditions, the main unit with dual working conditions, and the ice storage tank;

[0058] Step S2: Use the operating data of the main engine under three working conditions to fit the function of its power consumption with respect to the partial load rate, where the partial load rate is the ratio of the actual cooling capacity to the rated cooling capacity;

[0059] Step S3: Using the operating data of the main engine under dual working conditions to fit the function of its power consumption with respect to the partial load rate;

[0060] Step S4: Use the function of the power consumption of the main engine under three working conditions obtained in step S2 on the part ...

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Abstract

The invention provides an ice storage air-conditioning system and a method for optimizing a control method of the ice storage air-conditioning system. The ice storage air-conditioning system comprises a refrigeration water system, a chilled water system and a main medium water system. The refrigeration water system comprises a water collector, a water distributor, a refrigeration water pipeline, a system circulating pump, a base carrier circulating pump, a first valve, a second valve and a third valve. The refrigeration water pipeline comprises a main pipeline, a first branched pipeline, a second branched pipeline, a third branched pipeline, a fourth branched pipeline, a fifth branched pipeline and a sixth branched pipeline. The chilled water system comprises the main medium water system, a ground medium water system and an ice medium water system. The main medium water system comprises a cooling tower, a cooling water pump, a double-mode main chiller, a three-mode main chiller, a main chiller solution pump, a main chiller heat exchanger, a fourth valve, a fifth valve, a sixth valve, a seventh valve and an eighth valve. By means of the ice storage air-conditioning system, the problem that the refrigeration demands of people at all periods of time every day cannot be met due to the fact that the double-mode main chiller, the three-mode main chiller and an ice storage groove are purely connected in parallel is solved.

Description

technical field [0001] The invention relates to air-conditioning equipment, in particular to an ice-storage air-conditioning system and an optimization method for its control method. Background technique [0002] The Chinese patent discloses a large temperature difference energy-storage composite source heat pump system with the notification number CN 205425523 U. The system includes an energy storage body, a heat pump unit, a user terminal, and a special heat exchanger for sewage. It is characterized in that: the heat pump The unit includes a dual-working-condition heat pump main engine and a three-working-condition main engine. There are n sets of dual-working-condition heat pump main engines and three-working-condition main engines respectively. An ice storage tank is also installed in parallel with each three-working-mode main engine, and a stop valve is installed on the ice storage tank pipeline. Although the system has improved the low temperature performance of the h...

Claims

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Application Information

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IPC IPC(8): F24F5/00F24F11/02F24F11/00
CPCF24F5/0017Y02E60/14
Inventor 由玉文翟文鹏程保华郭春梅王劲松王宇
Owner TIANJIN CHENGJIAN UNIV
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