CN107990454B - Energy-saving air conditioning system using natural cold source - Google Patents
Energy-saving air conditioning system using natural cold source Download PDFInfo
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- CN107990454B CN107990454B CN201711046833.1A CN201711046833A CN107990454B CN 107990454 B CN107990454 B CN 107990454B CN 201711046833 A CN201711046833 A CN 201711046833A CN 107990454 B CN107990454 B CN 107990454B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0003—Exclusively-fluid systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/40—Geothermal heat-pumps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
An energy-saving air conditioning system using a natural cold source comprises a heat exchanger and a cold using terminal, wherein refrigerant water in the heat exchanger flows out from a refrigerant water outlet and then is connected with the cold using terminal through a refrigerant water outflow pipe, the temperature of the refrigerant water is increased after the refrigerant water absorbs heat of a cold using room, the refrigerant water flows out from the cold using terminal and then is connected with a refrigerant water inlet of the heat exchanger through a refrigerant water inflow pipe, and therefore a refrigerant water circulation loop is formed between the cold using terminal and the heat exchanger; and a cooling water inlet of the heat exchanger and a cooling water outlet of the heat exchanger are connected with a cooling water circulating pipeline for providing cooling water for the heat exchanger, and the cooling water circulating pipeline is connected with a cooling tower cooling system, a fire water cooling system, a production and living water cooling system and/or an underground water cooling system. The invention fully utilizes the natural cold source in the factory, further shortens the starting time of the refrigerator, and saves a large amount of electric energy, thereby realizing the purposes of utilizing the natural cold source to cool the production area, reducing the power consumption and reducing the pollution.
Description
Technical Field
The invention belongs to the field of industrial refrigeration equipment, and particularly relates to an energy-saving air conditioning system utilizing a natural cold source.
Background
The indoor temperature is still higher sometimes in production district, office area in the mill in excessive seasons such as spring and autumn daytime, but if central air conditioning system opens the cooling machine cooling, because the refrigerating machine power is very big, open the cooling machine and can consume a large amount of electric energy, if do not open the cooling machine then indoor temperature is on the high side influence staff's comfort level. How to provide stable cold source for the factory under the condition of reducing the power consumption to make the cooling temperature in production district and office area obtain the guarantee, be the problem that will solve at present, generally the factory all has built the cooling tower in the district, and the fire-fighting pond in the factory, production life pond capacity are very big, these are all natural cold source, and all there is not the case of utilizing these cold sources in the prior art, consequently how to utilize natural cold source to cool down for production district and office area in the factory, can reduce the power consumption simultaneously, reduce pollution, become the problem that will solve at present.
Disclosure of Invention
In order to solve the problems, the invention provides an energy-saving air conditioning system utilizing a natural cold source, a cooling tower is adopted to cool cooling water in transition seasons, then cold energy is transferred to refrigerant water through a heat exchanger and is transferred to a cooling room, along with the rise of outdoor temperature, if the cooling tower cannot meet the cooling requirement any more, as the capacities of a fire pool and a production and living pool in a factory are very large, tap water in an underground fire pool and a live pool built in the factory is used for cooling the refrigerant water, namely, the cold of the tap water is transferred to the refrigerant water to reduce the temperature of the workshop or a production area. If the underground water resources in some cities are sufficient, the underground water temperature is relatively low, and the cold can be supplied to the indoor space in a manner of reducing the temperature of the refrigerant water by using the cold energy of the underground water. Therefore, the natural cold source in a factory can be fully utilized, the starting time of the refrigerator is further shortened, and a large amount of electric energy is saved, so that the purposes of cooling the production area by utilizing the natural cold source, reducing power consumption and reducing pollution are achieved.
In order to achieve the purpose, the invention adopts the technical scheme that:
an energy-saving air conditioning system using a natural cold source comprises a heat exchanger and a cold using terminal, wherein refrigerant water in the heat exchanger flows out from a refrigerant water outlet and then is connected with the cold using terminal through a refrigerant water outflow pipe, the temperature of the refrigerant water is increased after the refrigerant water absorbs heat of a cold using room, the refrigerant water flows out from the cold using terminal and then is connected with a refrigerant water inlet of the heat exchanger through a refrigerant water inflow pipe, and therefore a refrigerant water circulation loop is formed between the cold using terminal and the heat exchanger; and a cooling water inlet of the heat exchanger and a cooling water outlet of the heat exchanger are connected with a cooling water circulating pipeline for providing cooling water for the heat exchanger, and the cooling water circulating pipeline is connected with a cooling tower cooling system, a fire water cooling system, a production and living water cooling system and/or an underground water cooling system.
Preferably, the cooling tower cooling system comprises a first cooling tower, a cooling water outlet of the heat exchanger is connected with a cooling tower water inlet of the first cooling tower through a cooling water outlet pipe, a first cooling tower water outlet of the first cooling tower is connected with a cooling water inlet of the heat exchanger through a cooling water inlet pipe, a valve is arranged on the cooling water outlet pipe in a matched mode, and a valve and a water pump are arranged on the cooling water inlet pipe in a matched mode.
Preferably, the cooling tower cooling system further comprises a second cooling tower, a second cooling tower water outlet of the first cooling tower is connected with a cooling tower water inlet of the second cooling tower through a first cooling pipe, a valve and a water pump are arranged on the first cooling pipe in a matching mode, and a cooling tower water outlet of the second cooling tower is connected with a cooling water inlet pipe of the heat exchanger through a second cooling pipe to achieve connection with a cooling water inlet of the heat exchanger.
Preferably, the fire-fighting water cooling system comprises a fire-fighting water pool, a fire-fighting water inlet pipe and a fire-fighting water outlet pipe, wherein one end of the fire-fighting water inlet pipe is connected with a cooling water outlet of the heat exchanger, the other end of the fire-fighting water inlet pipe is connected with a water inlet of the fire-fighting water pool, and a valve is arranged on the fire-fighting water inlet pipe in a; one end of the fire-fighting water outlet pipe is connected with a water outlet of the fire-fighting water pool, the other end of the fire-fighting water outlet pipe is connected with a cooling water inlet of the heat exchanger, and a valve and a water pump are arranged on the fire-fighting water outlet pipe in a matched mode.
Preferably, the production and living water cooling system comprises a production and living water pool, a production water inlet pipe and a production water outlet pipe, one end of the production water inlet pipe is connected with a cooling water outlet of the heat exchanger, the other end of the production water inlet pipe is connected with a water inlet of the production and living water pool, and a valve is arranged on the production water inlet pipe in a matching manner; one end of the production water outlet pipe is connected with the cooling water inlet of the heat exchanger, the other end of the production water outlet pipe is connected with the water outlet of the production and living water pool, and a valve and a water pump are arranged on the production water outlet pipe in a matching mode.
Preferably, the fire-fighting water pool and the production and living water pool are both provided with water replenishing pipes connected with municipal water sources.
Preferably, the underground water cooling system comprises a water outlet well, a water well water outlet pipe, a water inlet well and a water well water inlet pipe, wherein the water outlet well is connected with the cooling water inlet of the heat exchanger through the water well water outlet pipe, the water well water outlet pipe is provided with a valve, the water inlet well is connected with the cooling water outlet of the heat exchanger through the water well water inlet pipe, and the water well water inlet pipe is provided with a valve.
Preferably, the cold-using terminal is further connected with a refrigerator cooling system, the refrigerator cooling system comprises a refrigerator, the refrigerant water in the refrigerator flows out from a refrigerant water outlet of the refrigerator and then is connected with the cold-using terminal through a refrigerant water outflow pipe of the refrigerator, the temperature of the refrigerant water is increased after the refrigerant water absorbs the heat of the cold-using room, the refrigerant water flows out from the cold-using terminal and then is connected with a refrigerant water inlet of the refrigerator through a refrigerant water inflow pipe of the refrigerator, so that a refrigerant water circulation loop is formed between the cold-using terminal and the refrigerator, and valves are arranged on the refrigerant water inflow pipe of the refrigerator and the refrigerant water outflow pipe of the refrigerator.
Preferably, a heat dissipation loop for dissipating heat and cooling the refrigerator is arranged between the refrigerator and the first cooling tower, the heat dissipation loop comprises a refrigerator cooling water outlet pipe connecting a refrigerator cooling water outlet and a cooling tower water inlet of the first cooling tower, and a refrigerator cooling water inlet pipe connecting a refrigerator cooling water inlet and a cooling tower water outlet of the first cooling tower, and valves are respectively arranged on the refrigerator cooling water outlet pipe and the refrigerator cooling water inlet pipe.
The invention has the beneficial effects that: the invention adopts the first cooling tower to cool the cooling water in transition seasons, and then transfers the cold energy to the refrigerant water through the heat exchanger to be transmitted to the cold room; along with the rise of outdoor temperature, if the cooling tower cannot meet the refrigeration requirement any more when the temperature is reduced, the refrigerant water is cooled by tap water in an underground fire-fighting water pool and a live water pool built in a factory, namely the cold of the tap water is transferred to the refrigerant water to reduce the temperature of a cold room; finally, as the underground water resource is sufficient and the temperature of the underground water is relatively low in summer, the cold is supplied to the room by utilizing the mode of reducing the temperature of the cooling medium water by using the cold energy of the underground water; like this just can make full use of the natural cold source in the mill, when summer temperature is very high, when utilizing the unable purpose of realizing for factory's district cooling of natural cold source, open the refrigerator, further shorten refrigerator boot time, practice thrift a large amount of electric energy to the realization utilizes the natural cold source to cool down for the production area, reduces the consumption simultaneously, the purpose of pollution abatement.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1. The direction of the arrows in fig. 1 is the direction of travel of the fluid in the conduit. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical significance. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
An energy-saving air conditioning system using a natural cold source comprises a heat exchanger 42 and a cold-using terminal 24, wherein cold water in the heat exchanger 42 flows out from a cold water outlet 421 and then is connected with the cold-using terminal 24 through a cold water outflow pipe 43, the temperature of the cold water is increased after the cold water absorbs heat of the cold-using terminal 24, the cold water flows out from the cold-using terminal 24 and then is connected with a cold water inlet 422 of the heat exchanger 42 through a cold water inflow pipe 44, and therefore a cold water circulation loop is formed between the cold-using terminal 24 and the heat exchanger 42; the cooling water inlet 423 of the heat exchanger 42 and the cooling water outlet 424 of the heat exchanger 42 are connected to a cooling water circulation line for supplying cooling water to the heat exchanger 42, and the cooling water circulation line is connected to a cooling tower cooling system, a fire water cooling system, a production and living water cooling system and/or an underground water cooling system.
The cooling tower cooling system comprises a first cooling tower 16, a cooling water outlet 424 of a heat exchanger 42 is connected with a cooling tower water inlet of the first cooling tower 16 through a cooling water outlet pipe 38, and a first cooling tower water outlet 161 of the first cooling tower 16 is connected with a cooling water inlet 423 of the heat exchanger 42 through a cooling water inlet pipe 39. The cooling water outlet pipe 38 is provided with a valve, the cooling water inlet pipe 39 is provided with a valve and a water pump, in this embodiment, the cooling water outlet pipe 38 is provided with a stop valve 41 and a stop valve 7 along the water flow direction, and the cooling water inlet pipe 38 is provided with a stop valve 80, a stop valve 13, a water pump 12, a check valve 11, a stop valve 10, a stop valve 6 and a stop valve 40 along the water flow direction.
The cooling tower cooling system further comprises a second cooling tower 22, a second cooling tower water outlet 162 of the first cooling tower 21 is connected with a cooling tower water inlet of the second cooling tower 22 through a first cooling pipe 21, a valve and a water pump are arranged on the first cooling pipe 21 in a matched mode, in the embodiment, a stop valve 17, a water pump 18, a check valve 19 and a stop valve 20 are sequentially arranged on the first cooling pipe 21 along the water flow direction, and a cooling tower water outlet of the second cooling tower 22 is connected with a cooling water inlet pipe 39 of the heat exchanger 42 through a second cooling pipe 23 to be connected with a cooling water inlet 423 of the heat exchanger 42.
The fire-fighting water cooling system comprises a fire-fighting water pool 79, a fire-fighting water inlet pipe 32 and a fire-fighting water outlet pipe 33, one end of the fire-fighting water inlet pipe 32 is connected with a cooling water outlet 424 of a heat exchanger 42, in the embodiment, one end of the fire-fighting water inlet pipe 32 is connected with a cooling water outlet pipe 38 to be connected with the cooling water outlet 424, the other end of the fire-fighting water inlet pipe 32 is connected with a water inlet of the fire-fighting water pool, a valve is arranged on the fire-fighting water inlet pipe 32, in the embodiment, a stop valve 78 is arranged on the fire-fighting water inlet pipe 32, one end of the fire-fighting water outlet pipe 33 is connected with a water outlet of the fire-fighting water pool, the other end of the fire-fighting water outlet pipe 33 is connected with a, A water pump 48, a check valve 49, and a shut-off valve 50.
The production and living water cooling system comprises a production and living water pool 60, a production water inlet pipe 76 and a production water outlet pipe 59, wherein one end of the production water inlet pipe 76 is connected with a cooling water outlet 424 of the heat exchanger 42, one end of the production water inlet pipe 76 in the embodiment is connected to the fire-fighting water inlet pipe 32 to be connected with the cooling water outlet 424 of the heat exchanger 42, the other end of the production water inlet pipe is connected with a water inlet of the production and living water pool, a valve is arranged on the production water inlet pipe 76, and a stop valve 73 is arranged on the production; one end of the production water outlet pipe 59 is connected with the cooling water inlet 423 of the heat exchanger 42, one end of the production water outlet pipe 59 is connected to the fire-fighting water outlet pipe 33 to be connected with the cooling water inlet 423 of the heat exchanger 42, the other end of the production water outlet pipe 59 is connected with the water outlet of the production and living water pool, a valve and a water pump are arranged on the production water outlet pipe 59, and a stop valve 81, a stop valve 54, a water pump 53, a check valve 52 and a stop valve 51 are arranged on the production water outlet pipe 59 in sequence along the. In this embodiment, the production/living water tank 60 is also connected to a water consumption point 66 in a factory through a water consumption pipe 65, and a stop valve 61, a water pump 62, a check valve 63, and a stop valve 64 are provided in this order along the water flow direction on the water consumption pipe 65.
Fire-fighting water pond 79 and production and living pond 60 all are equipped with the moisturizing pipe of being connected with municipal water source 70, be provided with the valve on the moisturizing pipe, production and living pond 60 is connected with municipal water source 70 through second moisturizing pipe 72 in this embodiment, and has set gradually stop valve 71 and stop valve 74 along the direction of rivers on the second moisturizing pipe 72, and fire-fighting water pond 79 is connected the back and then is connected with municipal water source 70 through first moisturizing pipe 75 and second moisturizing pipe 72, and is provided with stop valve 77 on the first moisturizing pipe 75.
The underground water cooling system comprises a water outlet well 58, a water well water outlet pipe 56, a water inlet well 67 and a water well water inlet pipe 69, wherein the water outlet well 58 is connected with a cooling water inlet 423 of the heat exchanger 42 through the water well water outlet pipe 56, a valve is arranged on the water well water outlet pipe 56, in the embodiment, the water well water outlet pipe 56 is connected with a production water outlet pipe 59 and then connected with the cooling water inlet 423 of the heat exchanger 42, and a stop valve 57 is arranged on the water well water outlet pipe 56; the water inlet well 67 is connected with the cooling water outlet 424 of the heat exchanger 42 through a water inlet well pipe 69, a valve is arranged on the water inlet well pipe 69, the water inlet well pipe 69 is connected with the production water inlet pipe 76 to be connected with the cooling water outlet 424 of the heat exchanger 42, and a stop valve 68 is arranged on the water inlet well pipe 69.
The cold terminal is also connected with a refrigerator cooling system which comprises a refrigerator 1, the refrigerant water in the refrigerator 1 flows out from a refrigerator refrigerant water outlet 101 and then is connected with a cold terminal 24 through a refrigerator refrigerant water outflow pipe 30, the temperature of the refrigerant water is increased after absorbing the heat of a cold room 24, the refrigerant water flows out from the cold terminal 24 and then is connected with a refrigerator refrigerant water inlet 102 of the refrigerator through a refrigerator refrigerant water inflow pipe 31, so that a refrigerant water circulation loop is formed between the cold terminal 24 and the refrigerator 1, valves are respectively arranged on the refrigerator refrigerant water inflow pipe 31 and the refrigerator refrigerant water outflow pipe 30, the refrigerator refrigerant water outflow pipe 30 is connected with a refrigerant water outflow pipe 43 of a heat exchanger 42 to realize the connection with the cold terminal 24, a stop valve 34 is arranged on the refrigerator refrigerant water outflow pipe 30, the refrigerator refrigerant water inflow pipe 31 is connected with a refrigerant water inflow pipe 44 of the heat exchanger 42 to realize the connection with the cold room, a shutoff valve 35 is provided in the refrigerant water inflow pipe 31 of the refrigerator.
A heat dissipation loop for dissipating heat and reducing temperature of the refrigerator 1 is arranged between the refrigerator 1 and the first cooling tower 16, the heat dissipation loop comprises a refrigerator cooling water outlet pipe 5 connected with a refrigerator cooling water outlet 103 and a cooling tower water inlet of the first cooling tower 16, and a refrigerator cooling water inlet pipe 4 connected with a refrigerator cooling water inlet 104 and a cooling tower water outlet of the first cooling tower 16, valves are respectively arranged on the refrigerator cooling water outlet pipe 5 and the refrigerator cooling water inlet pipe 4, in the embodiment, the refrigerator cooling water outlet pipe 5 is connected to a cooling water outlet pipe 38 of the heat exchanger 42 to be connected with the cooling tower water inlet of the first cooling tower 16, and a stop valve 3 is arranged on the refrigerator cooling water outlet pipe 5; the refrigerating machine cooling water inlet pipe 4 is connected into the cooling water inlet pipe 39 of the heat exchanger 42 to be connected with the cooling tower water outlet of the first cooling tower 16.
During specific work, in transition seasons, when the air temperature is higher but not high in summer, in order to ensure the indoor comfort level, cooling water is cooled by refrigerant water through the heat exchanger 42, the temperature of the cooling water rises, the cooling water flows out from the cooling water outlet 424 and then enters the first cooling tower 16 through the stop valve 41, the cooling water outlet pipe 38 and the stop valve 7, the cooled cooling water flows out from the first cooling tower water outlet 161 of the first cooling tower 16 and enters the cooling water inlet pipe 39, the cooling water flows into the heat exchanger 42 from the cooling water inlet 423 of the heat exchanger 42 through the stop valve 80, the stop valve 13, the water pump 12, the check valve 11, the stop valve 10, the stop valve 6 and the stop valve 40 to absorb the heat of refrigerant water again and then flows back into the first cooling tower 16 from the cooling water outlet 424 of the heat exchanger 42 to be cooled, and the circulation is. The refrigerant water absorbs the cooling energy of the cooling water from the heat exchanger 42, flows out from the refrigerant water outlet 421 of the heat exchanger 42, enters the refrigerant water outflow pipe 43, passes through the stop valve 46, the stop valve 36 and the stop valve 25, enters the cold terminal 24, absorbs the heat in the air in the cold terminal 24, cools the room, enters the refrigerant water inflow pipe 44, passes through the stop valve 26, the water pump 27, the check valve 28, the stop valve 29, the stop valve 37 and the stop valve 45, flows back to the heat exchanger 42 through the refrigerant water inlet 422 of the heat exchanger 42, re-absorbs the cooling energy of the cooling water, flows into the cold terminal 24 again, reduces the room temperature, and the refrigerant water circulates in a reciprocating manner. Because of the saturation of the moisture content of the air and the capacity of the first cooling tower 16, as the air temperature rises, if only the first cooling tower 16 can not meet the cooling water temperature reduction requirement, the second cooling tower 22 is started, the stop valve 80 is closed, the first cooling tower 16 and the second cooling tower 22 are connected in series, the cooling water flows out from the heat exchanger 42 and enters the cooling water outlet pipe 38, enters the first cooling tower 16 through the stop valve 41 and the stop valve 7 to be cooled, the cooling water cooled by the first cooling tower 16 flows out from the second cooling tower water outlet 162 and enters the first cooling pipe 21, enters the second cooling tower 22 through the stop valve 17, the water pump 18, the check valve 19 and the stop valve 20 to be cooled again, the cooling water cooled again by the second cooling tower 22 enters the cooling water inlet pipe 39 through the second cooling pipe 23, enters the heat exchanger 42 through the stop valve 13, the water pump 12, the check valve 11, the stop valve 10, the stop valve 6 and the stop valve 40 to absorb the heat of the coolant water again to be, the cooling water flows back from the heat exchanger 42 to the two-stage cooling tower for cooling, and the circulation is repeated.
When the temperature rises again, the temperature reduction requirement of the cold terminal 24 cannot be met only by the first cooling tower 16 and the second cooling tower 22, and the underground large fire-fighting water pool and the production and living water pool are built in the factory, particularly a large-scale factory, and the temperature of tap water in the water pools is relatively low. Therefore, after entering the fire-fighting water outlet pipe 33, water in the fire-fighting water pool 79 can enter the cooling water inlet pipe 39 through the stop valve 47, the water pump 48, the check valve 49 and the stop valve 50, and then enters the heat exchanger 42 through the stop valve 40, and the cooling capacity is transmitted to refrigerant water in the heat exchanger 42, the fire-fighting water cools the refrigerant water and then flows out of the heat exchanger 42, enters the cooling water outlet pipe 38 and then enters the fire-fighting water inlet pipe 32 through the stop valve 41, and the stop valve 78 flows back into the fire-fighting water pool 79, and the circulation is repeated in the way, although the municipal water source 70 can supplement water for the fire-fighting water pool 79 through the stop valve 71, the first water supplement pipe 75 and the stop valve 77, the water in the fire-fighting water pool 79 is basically stable in water quantity and consumes little water, so that after a certain time of circulation.
Tap water in the production living water pool 60 is connected to the fire-fighting water outlet pipe 33 through the stop valve 81, the production water outlet pipe 59, the stop valve 54, the water pump 53, the check valve 52 and the stop valve 51 and then connected to the cooling water inlet pipe 39 and enters the heat exchanger 42 through the stop valve 40, the tap water transfers cooling energy to refrigerant water in the heat exchanger 42, flows out of the heat exchanger 42 and enters the cooling water outlet pipe 38, enters the production water inlet pipe 76 through the stop valve 41 and flows back into the production living water pool 60 through the stop valve 73, and the operation is repeated. Because the production and living water pool 60 supplies production and living water for the whole plant, the municipal water source 70 continuously supplies water to the production and living water pool 60 through the stop valve 71, the second water supply pipe 72 and the stop valve 74, the tap water in the production and living water pool 60 continuously supplies tap water to the water using point 66 through the stop valve 61, the water pump 62, the check valve 63, the stop valve 64 and the water using pipe 65, and the water using point 66 represents all the tap water points of the whole plant, so the tap water in the production and living water pool 60 is continuously updated, and the heat exchanger 42 is continuously provided with cold.
When the air temperature further rises and the speed of the tap water updated in the production and living water pool 60 can not meet the requirement of the cold used by the whole plant, the underground water temperature is lower than the tap water temperature, so that in some cities with higher underground water level and sufficient water resources, the cold source can be continuously provided for the cold used by the whole plant by adopting the underground water after the approval of relevant departments. A water well 58 is drilled at a proper position of a factory area, a water well 67 is drilled at another proper position, underground water of the water outlet well 58 enters a production water outlet pipe 59 through a stop valve 57 and a water well outlet pipe 56, then enters a fire-fighting water outlet pipe 33 through a stop valve 54, a water pump 53, a check valve 52 and a stop valve 51, then enters a cooling water inlet pipe 39, enters a heat exchanger 42 through a stop valve 40 to bring cooling capacity to cold medium water, the heated underground water flows out of the heat exchanger 42, enters a cooling water outlet pipe 38, a stop valve 41, a fire-fighting water inlet pipe 32, a production water inlet pipe 76, a water well inlet pipe 69 and a stop valve 68, and flows back into the water inlet well 67 to enter the underground again, so that the underground water level cannot be lowered due to the fact that the.
In summer, the temperature is particularly high, the temperature is reduced through the first cooling tower 16, the second cooling tower 22, the fire water pool 79 and the production and living water pool 60 or even the temperature of underground water through the water outlet well 58 and the water inlet well 67 can not meet the requirement of cooling, at the moment, the refrigerator 1 is started, after the refrigerator 1 is started to operate, refrigerant water flows out of a refrigerator refrigerant water outlet 101 of the refrigerator 1 and then is conveyed to a cooling terminal 24 through a refrigerator refrigerant water outflow pipe 30, a stop valve 3, a refrigerant water outflow pipe 43 and a stop valve 25, and the cooling terminal 24 represents all workshops and office areas. After the temperature of the cold terminal 24 for reducing the refrigerant water is increased, the refrigerant water flows back to the refrigerator 1 through the stop valve 26, the water pump 27, the check valve 28, the stop valve 29, the refrigerant water inlet pipe 39, the refrigerator refrigerant water inlet pipe 31 and the stop valve 35 to be cooled through the refrigerator, and the refrigerant water absorbs cold energy and then performs circulating cooling again. And after the cooling water absorbs the heat of the refrigerator and the temperature rises, the cooling water flows out from a refrigerator cooling water outlet 103 of the refrigerator 1, enters a refrigerator cooling water outlet pipe 5, enters a first cooling tower 16 through a stop valve 3 and a cooling water outlet pipe 38, is cooled through the first cooling tower 16, and then enters the cooling tower again to be cooled after the cooling water re-absorbs the heat of the refrigerator through a cooling water inlet pipe 39, a stop valve 80, a stop valve 13, a water pump 12, a check valve 11, a stop valve 10, a refrigerator cooling water inlet pipe 4 and a stop valve 2 backflow system refrigerator, and flows in a reciprocating and circulating mode.
The invention adopts the first cooling tower 16 and the second cooling tower 22 to cool the cooling water in transition seasons, then transfers the cold energy to the refrigerant water through the heat exchanger 42 and transmits the cold energy to the cold using terminal 24, and as the outdoor temperature rises, if the cooling tower cooling can not meet the cooling requirement any more, because the capacities of the fire water pool 79 and the production life water pool 60 in the factory are very large, the tap water in the underground fire water pool 79 and the production life water pool 60 built in the factory is used for cooling the refrigerant water, namely, the cold of the tap water is transferred to the refrigerant water to reduce the temperature of the workshop or the production area. If the underground water resources in some cities are sufficient, the underground water temperature is relatively low, and the cold can be supplied to the indoor space by using the mode of reducing the temperature of the refrigerant water by using the cold energy of the underground water after the approval of relevant departments. Therefore, the natural cold source in a factory can be fully utilized, the starting time of the refrigerator 1 is further shortened, and a large amount of electric energy is saved, so that the purposes of cooling the production area by utilizing the natural cold source, reducing power consumption and reducing pollution are achieved.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (4)
1. The utility model provides an energy-conserving air conditioning system of utilization nature cold source which characterized in that: the system comprises a heat exchanger and a cold using terminal, wherein refrigerant water in the heat exchanger flows out from a refrigerant water outlet and then is connected with the cold using terminal through a refrigerant water outflow pipe, the temperature of the refrigerant water is increased after the refrigerant water absorbs heat of a cold using room, and the refrigerant water flows out from the cold using terminal and then is connected with a refrigerant water inlet of the heat exchanger through a refrigerant water inflow pipe, so that a refrigerant water circulation loop is formed between the cold using terminal and the heat exchanger; a cooling water inlet of the heat exchanger and a cooling water outlet of the heat exchanger are connected with a cooling water circulating pipeline for providing cooling water for the heat exchanger, and the cooling water circulating pipeline is connected with a cooling tower cooling system, a fire water cooling system, a production and living water cooling system and/or an underground water cooling system;
the cooling tower cooling system comprises a first cooling tower, a cooling water outlet of a heat exchanger is connected with a cooling tower water inlet of the first cooling tower through a cooling water outlet pipe, a first cooling tower water outlet of the first cooling tower is connected with a cooling water inlet of the heat exchanger through a cooling water inlet pipe, a valve is arranged on the cooling water outlet pipe in a matching mode, and a valve and a water pump are arranged on the cooling water inlet pipe in a matching mode;
the cooling tower cooling system also comprises a second cooling tower, a second cooling tower water outlet of the first cooling tower is connected with a cooling tower water inlet of the second cooling tower through a first cooling pipe, a valve and a water pump are arranged on the first cooling pipe in a matching way, and a cooling tower water outlet of the second cooling tower is connected with a cooling water inlet pipe of the heat exchanger through a second cooling pipe so as to realize connection with a cooling water inlet of the heat exchanger;
the fire-fighting water cooling system comprises a fire-fighting water pool, a fire-fighting water inlet pipe and a fire-fighting water outlet pipe, wherein one end of the fire-fighting water inlet pipe is connected with a cooling water outlet of the heat exchanger, the other end of the fire-fighting water inlet pipe is connected with a water inlet of the fire-fighting water pool, and a valve is arranged on the fire-fighting water inlet pipe in; one end of the fire-fighting water outlet pipe is connected with a water outlet of the fire-fighting pool, the other end of the fire-fighting water outlet pipe is connected with a cooling water inlet of the heat exchanger, and a valve and a water pump are arranged on the fire-fighting water outlet pipe in a matching way;
the production and living water cooling system comprises a production and living water pool, a production water inlet pipe and a production water outlet pipe, wherein one end of the production water inlet pipe is connected with a cooling water outlet of the heat exchanger, the other end of the production water inlet pipe is connected with a water inlet of the production and living water pool, and a valve is arranged on the production water inlet pipe in a matching manner; one end of the production water outlet pipe is connected with a cooling water inlet of the heat exchanger, the other end of the production water outlet pipe is connected with a water outlet of the production and living water pool, and a valve and a water pump are arranged on the production water outlet pipe in a matching mode;
the underground water cooling system comprises a water outlet well, a water well water outlet pipe, a water inlet well and a water well water inlet pipe, wherein the water outlet well is connected with a cooling water inlet of the heat exchanger through the water well water outlet pipe, a valve is arranged on the water well water outlet pipe, the water inlet well is connected with a cooling water outlet of the heat exchanger through the water well water inlet pipe, and a valve is arranged on the water well water inlet pipe.
2. The energy-saving air conditioning system using natural cold source as claimed in claim 1, wherein: the fire-fighting water pool and the production and living water pool are both provided with water replenishing pipes connected with municipal water sources.
3. An energy saving air conditioning system using natural cold source as claimed in claim 1 or 2, wherein: the refrigerator cooling system comprises a refrigerator, refrigerant water in the refrigerator flows out from a refrigerant water outlet of the refrigerator and then is connected with the refrigerator cooling terminal through a refrigerant water outflow pipe of the refrigerator, the temperature of the refrigerant water is increased after the refrigerant water absorbs heat of a cold room, the refrigerant water flows out from the cold terminal and then is connected with a refrigerant water inlet of the refrigerator through a refrigerant water inflow pipe of the refrigerator, so that a refrigerant water circulation loop is formed between the cold terminal and the refrigerator, and valves are arranged on the refrigerant water inflow pipe of the refrigerator and the refrigerant water outflow pipe of the refrigerator.
4. The energy-saving air conditioning system using natural cold source as claimed in claim 3, wherein: the refrigerator cooling system is characterized in that a heat dissipation loop for dissipating heat and reducing temperature of the refrigerator is arranged between the refrigerator and the first cooling tower, the heat dissipation loop comprises a refrigerator cooling water outlet pipe and a refrigerator cooling water inlet pipe, the refrigerator cooling water outlet pipe is connected with a refrigerator cooling water outlet of the cooling tower water inlet of the first cooling tower, the refrigerator cooling water inlet pipe is connected with a refrigerator cooling water inlet of the cooling tower water outlet of the first cooling tower, and valves are arranged on the refrigerator cooling water outlet pipe and the refrigerator cooling water inlet pipe in a matched mode.
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| CN109159883B (en) * | 2018-07-27 | 2020-12-01 | 中国船舶重工集团公司第七一九研究所 | Marine nuclear power platform reactor cabin refrigerating system |
| CN109307373B (en) * | 2018-08-03 | 2021-01-01 | 上海汇珏网络通信设备股份有限公司 | Energy-saving heat exchange unit utilizing ground cooling energy |
| IT202000005335A1 (en) * | 2020-03-12 | 2021-09-12 | Stulz S P A | FREE COOLING MODULE FOR TEMPERATURE MANAGEMENT SYSTEM |
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