Disclosure of Invention
In order to solve the problems, the invention provides a cold beam air conditioning device for refrigerating and heating by utilizing solar energy, which has the following specific technical scheme:
a chilled beam air conditioning device using solar energy for refrigeration and heating comprises a solar heat collector, a heat storage water tank, an adsorption type refrigerating unit, a chilled beam air conditioner and a cooling tower, the solar heat collector is connected with the heat storage water tank through a pipeline to form a loop which can provide hot water for the device, the heat storage water tank is connected with the adsorption type refrigerating unit through a pipeline to form an adsorption loop, hot water enters the adsorption type refrigerating unit to enable the refrigerant in the adsorption type refrigerating unit to complete the adsorption process, at the moment, the cold beam air conditioner is connected with the adsorption type refrigerating unit through a pipeline to form a refrigerating loop, the cold energy generated in the adsorption process enters the cold beam air conditioner to form the summer refrigerating working condition of the cold beam air conditioner, the adsorption type refrigerating unit is connected with the cooling tower through a pipeline to form a desorption loop, and cooled working medium water provided by the cooling tower enters the adsorption type refrigerating unit to enable a refrigerant in the adsorption type refrigerating unit to complete a desorption process; the cold beam air conditioner is connected with the heat storage water tank through a pipeline to form a heating loop, the cold beam air conditioner and the pipeline of the adsorption type refrigerating unit are in a closed state at the moment, and hot water in the heat storage water tank directly enters the cold beam air conditioner to form a winter heating working condition of the cold beam air conditioner.
Furthermore, a lifting pump is arranged on a pipeline connecting the solar heat collector and the heat storage water tank; a hot water pump is arranged on an outlet pipeline of the heat storage water tank connected with the adsorption type refrigerating unit; a refrigerant pump is arranged on an outlet pipeline connected with the adsorption type refrigerating unit and the chilled beam air conditioner; the desorption circuit is provided with a heat exchanger, the adsorption type refrigerating unit, the heat exchanger and the cooling tower form a circuit for cooling the refrigerant through pipelines, and a cooling water pump is arranged on the pipeline from the outlet of the heat exchanger to the inlet of the adsorption type refrigerating unit.
Furthermore, a branch pipeline connected to the outlet of the refrigerant pump is arranged at the outlet of the hot water pump, another branch pipeline is arranged between the chilled beam air conditioner and the heat storage water tank, and the chilled beam air conditioner and the heat storage water tank form a heating loop through the two branch pipelines.
Furthermore, the adsorption loop, the refrigeration loop and the heating loop are provided with stop valves to switch the heating working condition and the heating working condition of the chilled beam air conditioner.
Further, the cold beam air conditioner is connected with a constant pressure tank.
Furthermore, a medium used for cooling the water absorbing working medium in the heat exchanger is domestic water.
Has the advantages that:
(1) solar energy is used as a heating heat source, and the heating temperature in the adsorption type refrigerating unit is kept through the heat storage water tank, so that the continuous and stable heat source can be provided at different positions and in different environments.
(2) The heat storage water tank, the adsorption type refrigerating unit and the cold beam air conditioner pipeline are switched, so that cooling in summer and heating in winter can be realized.
(3) The heat exchanger is utilized to recover heat, and the energy utilization rate is improved.
(4) The cold beam air conditioner is adopted as the tail end device of the air conditioning system, so that the noise generation and the blowing feeling of the traditional air conditioner are avoided, and the indoor comfort is improved.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments:
as shown in fig. 1, a chilled beam air conditioning device using solar energy for refrigeration and heating comprises a solar heat collector 1, a heat storage water tank 4, an adsorption type refrigerating unit 11, a chilled beam air conditioner 13 and a cooling tower 24, wherein the solar heat collector 1 is connected with the heat storage water tank 4 through a pipeline to form a loop capable of providing hot water for the device, the heat storage water tank 4 is connected with the adsorption type refrigerating unit 11 through a pipeline to form an adsorption loop, hot water enters the adsorption type refrigerating unit 11 to enable a refrigerant in the adsorption type refrigerating unit to complete an adsorption process, at the moment, the chilled beam air conditioner 13 is connected with the adsorption type refrigerating unit 11 through a pipeline to form a refrigerating loop, cold energy generated in the adsorption process enters the chilled beam air conditioner 13 to form summer working condition refrigeration of the chilled beam air conditioner 13, the adsorption type refrigerating unit 11 is connected with the cooling tower 24 through a pipeline to form a desorption loop, and cooled working medium water provided by the cooling tower 24 enters the adsorption type refrigerating unit 11, the refrigerant in the desorption tank is subjected to desorption; the chilled beam air conditioner 13 is connected with the heat storage water tank 4 through a pipeline to form a heating loop, the chilled beam air conditioner 13 and the pipeline of the adsorption type refrigerating unit 11 are in a closed state at the moment, and hot water in the heat storage water tank 4 directly enters the chilled beam air conditioner 13 to form a winter heating working condition of the chilled beam air conditioner 13.
Specifically, a lifting pump 2 is arranged on a pipeline connecting the solar heat collector 1 and the heat storage water tank 4; a hot water pump 6 is arranged on an outlet pipeline of the heat storage water tank 4 connected with the adsorption type refrigerating unit 11; a refrigerant pump 14 is arranged on an outlet pipeline connected with the adsorption refrigerating unit 11 and the chilled beam air conditioner 13; the desorption loop is provided with a heat exchanger 19, the adsorption type refrigerating unit 11, the heat exchanger 19 and the cooling tower 24 form a loop for cooling the refrigerant through pipelines, and a cooling water pump 21 is arranged on a pipeline from an outlet of the heat exchanger 19 to an inlet of the adsorption type refrigerating unit 11. The outlet of the hot water pump 6 is provided with a branch pipeline connected to the outlet of the refrigerant pump 14, the chilled beam air conditioner 13 and the hot water storage tank 4 are provided with another branch pipeline, and the chilled beam air conditioner 13 and the hot water storage tank 4 form a heating loop through the two branch pipelines. And stop valves are arranged on the adsorption loop, the refrigeration loop and the heating loop so as to switch the heating working condition and the heating working condition of the chilled beam air conditioner 13.
The chilled beam air conditioner is connected with a constant pressure tank 23, and the constant pressure tank 23 is used for adjusting stable pressure in the chilled beam air conditioner 13. The medium of the heat exchanger 19 for cooling the working medium water is domestic water, the domestic water heated after heat exchange can be recycled, heat is recovered, and the energy utilization rate is improved.
The specific embodiment is as follows:
as shown in fig. 1, a chilled beam air conditioner using solar energy for cooling and heating comprises a solar heat collector 1, a heat storage water tank 4, an adsorption type refrigerating unit 11, a chilled beam air conditioner 13, a constant pressure tank 23, a heat exchanger 19 and a cooling tower 24; the chilled beam air conditioner 13 is connected with a constant pressure tank 23, and the constant pressure tank 23 is used for adjusting stable pressure in the chilled beam air conditioner 13; the medium of the heat exchanger 19 for cooling the working medium water is domestic water, and the domestic water heated after heat exchange can be recycled.
And a first stop valve 3 and a hot water pump 2 are arranged on an outlet pipeline at the bottom of the heat storage water tank 4, and an outlet pipeline of the solar heat collector 1 is connected to the top of the heat storage water tank 4, so that a loop capable of providing hot water for the device is formed.
An adsorption loop: a hot water pump 6 is arranged on an outlet pipeline connected with the middle upper part of the heat storage water tank 4, so that hot water in the heat storage water tank 4 is conveyed into the adsorption type refrigerating unit 11, and a stop valve III 7 and a stop valve II 5 are arranged on inlet and outlet pipelines of the hot water pump 6; and a five stop valve 9 is arranged on an outlet pipeline connected with the lower middle part of the heat storage water tank 4 by the adsorption type refrigerating unit 11. Hot water in the heat storage water tank 4 is conveyed into the adsorption type refrigerating unit 11 through the heat pump 6 and then flows through a pipeline of the five stop valves 9 and then returns into the heat storage water tank 4; when flowing through the refrigerant in the adsorption refrigeration unit 11, the refrigerant adsorbs the heat source of hot water, so that the refrigerant is gasified, evaporated and absorbs heat, the gas-phase refrigerant reaches a certain pressure to form a liquid-phase refrigerant carrying cold, and the liquid-phase refrigerant is conveyed to the refrigeration loop to exchange heat with air to achieve the refrigeration effect.
A desorption loop: the adsorption refrigeration unit 11, the heat exchanger 19 and the cooling tower 24 form a desorption loop through pipelines, and a cooling water pump 21 is arranged on an inlet pipeline of the adsorption refrigeration unit 11. The outlet pipeline of the adsorption refrigeration unit 11 is provided with a first stop valve 18, the pipeline is connected with an upper pipeline inlet of a heat exchanger 19, an upper pipeline outlet of the heat exchanger 19 is connected with the top of a cooling tower 24 through a pipeline, the bottom of the cooling tower 24 is connected with a lower pipeline inlet of the heat exchanger 19 through a pipeline, a lower pipeline outlet of the heat exchanger 19 is connected with a cooling water pump 21 through a pipeline, an outlet pipeline of the cooling water pump 21 is connected to the adsorption refrigeration unit 11, and a third stop valve 22 and a twelfth stop valve 20 are arranged on an inlet pipeline and an outlet pipeline of the cooling water pump 21. After the liquid-phase refrigerant flows through the refrigeration loop, a gas-phase refrigerant is formed and returns to the adsorption refrigeration unit 11, and the cooled working medium water in the heat exchanger 19 flows through the adsorption refrigeration unit 11, so that the returned gas-phase refrigerant is liquefied into the liquid-phase refrigerant, and the desorption process is completed.
A refrigeration circuit: under the condition that the adsorption loop and the desorption loop are normally put into use, the refrigeration loop can normally operate. Liquid-phase refrigerant generated in the adsorption refrigerating unit 11 flows into the chilled beam air conditioner 13 through a refrigerant pump 14 on an outlet pipeline, and cold energy is transferred to air flowing through the chilled beam air conditioner 13, so that the air is cooled to achieve the aim of refrigeration; the liquid-phase refrigerant flowing through the chilled beam air conditioner 13 exchanges heat with air to form a gas-phase refrigerant, and the gas-phase refrigerant returns to the adsorption refrigeration unit 11 through an outlet pipeline provided with a stop valve seven 12; and a stop valve nine 15 and a stop valve ten 16 are arranged on inlet and outlet pipelines of the refrigerant pump 14.
A heating loop: the outlet of the hot water pump 6 is provided with a branch pipeline I connected to the outlet of the refrigerant pump 14, the chilled beam air conditioner 13 is communicated with the hot water storage tank 4 and is provided with a branch pipeline II, and the chilled beam air conditioner 13 and the hot water storage tank 4 form a heating loop through the two branch pipelines. A fourth stop valve 8 is arranged on the first branch pipeline, the first branch pipeline is connected to the pipeline behind the eighth stop valve 15, and a tenth stop valve 17 is arranged on the pipeline in front of the inlet of the cold beam air conditioner 13; and a stop valve six 10 is arranged on the branch pipeline two. When the heating loop is used, the stop valves three, five, seven, eight 7, 9, 12 and 15 need to be closed, and the operation of the desorption loop, the adsorption loop and the refrigeration loop is stopped, so that the heat in the heat storage water tank 4 is directly transferred into the chilled beam air conditioner 13 and exchanges heat with the air flowing through the chilled beam air conditioner 13, and the purpose of heating is achieved.
The refrigerating and heating working process comprises the following steps:
under the working condition of summer, the four, six, 8, 10 stop valves are closed, and hot water in the heat storage water tank 4 is conveyed into the adsorption type refrigerating unit 11 through the hot water pump 6 to provide heat for the refrigerant and finish the adsorption process; the working medium water cooled by the heat exchanger 19 is conveyed into the adsorption type refrigerating unit 11 through the cooling water pump 21 to provide cold energy for the refrigerant and finish the adsorption process; the cold energy generated by the adsorption refrigerating unit 11 in the adsorption process is conveyed into the chilled beam air conditioner 13 through the refrigerant pump 14, and the chilled beam air conditioner 13 sends out cold air to realize cold supply in summer.
Under the working condition in winter, the stop valves three, five, seven, eight 7, 9, 12 and 15 are closed, hot water in the heat storage water tank 4 is conveyed into the chilled beam air conditioner 13 through the hot water pump 6, and the chilled beam air conditioner 13 sends out warm air to realize heating in winter.