CN111397041A - Modular air-cooling cold and hot water system - Google Patents

Modular air-cooling cold and hot water system Download PDF

Info

Publication number
CN111397041A
CN111397041A CN202010303598.7A CN202010303598A CN111397041A CN 111397041 A CN111397041 A CN 111397041A CN 202010303598 A CN202010303598 A CN 202010303598A CN 111397041 A CN111397041 A CN 111397041A
Authority
CN
China
Prior art keywords
pipeline
valve
water tank
temperature
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010303598.7A
Other languages
Chinese (zh)
Inventor
张雪琪
李翱翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Aux Electric Co Ltd
Original Assignee
Ningbo Aux Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Aux Electric Co Ltd filed Critical Ningbo Aux Electric Co Ltd
Priority to CN202010303598.7A priority Critical patent/CN111397041A/en
Publication of CN111397041A publication Critical patent/CN111397041A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • F24F5/0007—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 cooling apparatus specially adapted for use in air-conditioning
    • F24F5/0017—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 cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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
    • 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
    • F24F5/0096—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 combined with domestic apparatus
    • 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
    • F24F5/0007—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 cooling apparatus specially adapted for use in air-conditioning
    • F24F5/0017—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 cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
    • F24F2005/0032—Systems storing energy during the night
    • 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
    • F24F2005/0064—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 using solar energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/18—Details or features not otherwise provided for combined with domestic apparatus
    • F24F2221/183—Details or features not otherwise provided for combined with domestic apparatus combined with a hot-water boiler
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y02A30/272—Solar heating or cooling
    • 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
    • Y02B10/20—Solar thermal
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Signal Processing (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The invention provides a modular air-cooled cold and hot water system, and relates to the technical field of air conditioners. The modular air-cooled cold and hot water system comprises a solar hot water tank, a heat preservation water tank, an outdoor unit, an indoor unit, a first pipeline and a second pipeline, wherein the outdoor unit, the first pipeline, the indoor unit and the second pipeline are sequentially connected end to form a circulation loop, the heat preservation water tank is respectively connected to the first pipeline and the second pipeline through pipelines, and the solar hot water tank is connected to the heat preservation water tank. Like this, a large amount of charges of electricity can be saved to modular air-cooled cold and hot water system, and holding water tank can supply cold volume in summer, and holding water tank can supply life hot water in winter, makes the user obtain more comfortable experience, and the good reliability, easy operation, the unit number of times of shutting down is few, and the stability of system is high.

Description

Modular air-cooling cold and hot water system
Technical Field
The invention relates to the technical field of air conditioners, in particular to a modular air-cooling cold and hot water system.
Background
With the popularization of central air conditioners, a plurality of large centralized buildings such as hotels, office buildings and the like can choose to adopt modular air-cooled cold and hot water units for cooling and heating. However, the large modular air-cooled chiller-heater unit also has some disadvantages:
1. the module machine generally has larger power, particularly in summer or winter, people are dense in the daytime, the requirements on cold and heat are larger, and the electricity fee is a huge expense;
2. on one hand, due to the heat storage capacity of the building wall, the period of the maximum cold load in one day is about 2:00-4:00 in the afternoon in summer; on the other hand, the hot outdoor environment can cause the reduction of the heating capacity of the unit, and under the two conditions, the refrigerating capacity of the unit is possibly smaller than the indoor required refrigerating capacity, so that the experience of a user is poor;
3. when the ambient temperature of user's demand reached, the unit will automatic shutdown, restart the refrigeration again when waiting that indoor temperature is too high, opens repeatedly and stops the damage that can cause the unit, influences the unit life-span.
The hot water heating system of building generally adopts solar energy system, and daytime sunshine is sufficient summer, and the water in the water tank can supply with the user demand, but winter illumination intensity is poor, and water tank water storage temperature is not enough, is difficult to satisfy the user demand, generally can adopt the hot stove auxiliary heating of gas, causes that equipment is many, gas furnace inefficiency, control are troublesome, danger is higher.
Therefore, the modular air-cooled water cooling and heating unit system is designed to achieve the effects of saving electric charge, enhancing refrigeration in summer and supplementing domestic hot water in winter, which is a technical problem to be solved urgently at present.
Disclosure of Invention
The invention solves the problems that the air-cooled cold and hot water unit has higher electricity cost and is frequently and repeatedly started and stopped, and the refrigerating capacity of the unit is possibly less than the indoor required refrigerating capacity in summer, thereby causing poor user experience.
In order to solve the problems, the invention provides a modular air-cooled cold and hot water system which comprises a solar hot water tank, a heat preservation water tank, an outdoor unit, an indoor unit, a first pipeline and a second pipeline, wherein the outdoor unit, the first pipeline, the indoor unit and the second pipeline are sequentially connected end to form a circulation loop, the heat preservation water tank is respectively connected to the first pipeline and the second pipeline through pipelines, and the solar hot water tank is connected to the heat preservation water tank.
Therefore, firstly, at night in summer, on the premise of meeting the requirements of a user side, the unit does not need to be shut down, the heat source side is automatically switched from the indoor unit to the heat-preservation water tank, and heat exchange is carried out on water in the heat-preservation water tank until the water temperature in the heat-preservation water tank reaches the set temperature; secondly, after the water in the heat-preservation water tank exchanges heat in the shell and tube of the outdoor unit for multiple times, the water temperature is reduced, energy storage can be realized, and the same principle is adopted for making hot water in winter; then, in the maximum cold load stage in summer, the unit is stopped to dissipate heat, and heat exchange is carried out by using water in the heat-preservation water tank, so that the user experience is enhanced; and finally, on the premise that the user side meets the requirements in winter, the unit heating water is stored in the solar hot water tank and is supplied to the user for use. The modular air-cooled cold and hot water system can save a large amount of charges of electricity, and holding water tank can supply cold volume in summer, and holding water tank can supply life hot water in winter, makes the user obtain more comfortable experience, and the good reliability, easy operation, the unit number of times of shutting down is few, and the stability of system is high.
Further, the modular air-cooled cold and hot water system further comprises a first valve, a second valve and a first water pump, wherein the first valve is arranged on the first pipeline, and the second valve and the first water pump are arranged on the second pipeline.
Further, the modular air-cooled cold and hot water system further comprises a third pipeline, a fourth pipeline, a third valve and a fourth valve, the heat-preservation water tank is connected to the first pipeline through the third pipeline and located between the outdoor unit and the first valve, the third valve is arranged on the third pipeline, the heat-preservation water tank is connected to the second pipeline through the fourth pipeline and located between the first water pump and the second valve, and the fourth valve is arranged on the fourth pipeline.
Further, the modular air-cooled cold and hot water system further comprises a fifth pipeline, a sixth pipeline, a fifth valve, a sixth valve and a second water pump, wherein the heat preservation water tank is connected to the first pipeline through the fifth pipeline and is located between the first valve and the indoor unit, the fifth valve is arranged on the fifth pipeline, the heat preservation water tank is connected to the second pipeline through the sixth pipeline and is located between the second valve and the indoor unit, and the sixth valve and the second water pump are arranged on the sixth pipeline.
Further, the modular air-cooled cold and hot water system further comprises a seventh pipeline and a seventh valve, the solar hot water tank is connected to the heat preservation water tank through the seventh pipeline, and the seventh valve is arranged on the seventh pipeline.
Therefore, the direction of water flow in the system can be flexibly adjusted through the valve and the water pump, and the effects of enhancing refrigeration in summer and supplementing domestic hot water in winter are achieved.
Furthermore, the solar water heating tank comprises a domestic hot water tank and a solar water heater, and the solar water heater is arranged at the top of the domestic hot water tank and used for heating water in the domestic hot water tank.
Further, the modular air-cooled cold and hot water system further comprises a controller, and a first temperature sensing probe and a second temperature sensing probe which are electrically connected with the controller, wherein the first temperature sensing probe is installed on the solar hot water tank and used for detecting the water temperature Tr in the solar hot water tank, the second temperature sensing probe is installed on the heat preservation water tank and used for detecting the water temperature Ts in the heat preservation water tank, and the controller is used for controlling the water flow direction in the system according to the water temperature Tr and the water temperature Ts.
Furthermore, the modular air-cooled cold and hot water system also comprises a third temperature sensing probe electrically connected with the controller, the third temperature sensing probe is used for detecting the indoor environment temperature Tn, and the controller is used for detecting the indoor environment temperature Tn;
when the indoor environment temperature Tn is less than or equal to a first preset temperature T1, the controller is used for controlling water flow to circulate in a loop formed by the heat-preservation water tank and the outdoor unit;
and when the indoor environment temperature Tn is greater than or equal to a second preset temperature T2, the controller is used for controlling the circulation of water flow in a loop formed by the outdoor unit and the indoor unit.
Further, the modular air-cooled cold and hot water system further comprises a fourth temperature sensing probe electrically connected with the controller, and the fourth temperature sensing probe is used for detecting the water temperature T L in the outdoor unit;
when the water temperature T L is greater than or equal to a third preset temperature T3 or the indoor environment temperature Tn is greater than or equal to a fourth preset temperature T4, the controller is used for controlling water flow to circulate in a loop formed by the heat-preservation water tank and the indoor unit;
and when the water temperature Ts is greater than or equal to a fifth preset temperature T5, the controller is used for controlling the circulation of water flow in a loop formed by the outdoor unit and the indoor unit.
Further, when the water temperature Tr is less than or equal to the sixth preset temperature T6, the controller is configured to control water to flow through a loop formed by the hot water tank and the hot water tank.
Therefore, the controller can control the water flow direction in the system, and the cold energy is stored at low price electricity fee by using the electricity consumption valley at night, so that the electricity fee is saved. When the indoor cold load is larger than the refrigerating capacity of the air conditioner and the refrigerating effect is poor, the stored cold quantity can be used as the supplementary cold quantity, the refrigerating effect is enhanced, and the user experience is enhanced. Under the condition that solar energy can not satisfy the hot water demand in winter, can supply the hot water demand, compare gas furnace, efficient, stability is high.
Drawings
Fig. 1 is a block diagram illustrating a modular air-cooled hot and cold water system according to an embodiment of the present invention.
Fig. 2 is a schematic connection diagram of the controller.
Fig. 3 is a working flow chart of a cooling mode of the modular air-cooled cold and hot water system according to the embodiment of the present invention.
Fig. 4 is a working flow chart of a heating mode of the modular air-cooled cold and hot water system according to the embodiment of the present invention.
Description of reference numerals:
1-modular air-cooled cold and hot water system; 2-a controller; 3-a solar hot water tank; 4-domestic hot water tank; 5-solar water heater; 6-a heat preservation water tank; 7-an outdoor unit; 8-indoor machine; 9-a first conduit; 10-a second pipeline; 11-a third pipeline; 12-a fourth line; 13-a fifth pipeline; 14-a sixth pipeline; 15-a seventh conduit; 16-a first valve; 17-a second valve; 18-a third valve; 19-a fourth valve; 20-a fifth valve; 21-a sixth valve; 22-a seventh valve; 23-a first water pump; 24-a second water pump; 25-a first temperature sensing probe; 26-a second temperature sensing probe; 27-a third temperature sensing probe; 28-fourth temperature sensing probe.
Detailed Description
The existing modular air-cooled cold and hot water unit has high power and high electricity cost; in summer, the refrigerating capacity of the unit is possibly less than the indoor required refrigerating capacity, so that the user experience is poor; when the ambient temperature of user's demand reached, the unit will automatic shutdown, restart the refrigeration again when waiting that indoor temperature is too high, opens repeatedly and stops the damage that can cause the unit, influences the unit life-span. The existing solar energy system generally adopts a gas heating furnace for auxiliary heating in winter, so that more equipment, low efficiency of the gas furnace, troublesome control and higher danger are caused.
The embodiment of the invention provides a modular air-cooling cold and hot water system, aiming at solving the technical problems that the existing air-cooling cold and hot water unit is high in electric charge, is frequently and repeatedly started and stopped, and is poor in user experience feeling due to the fact that the refrigerating capacity of the unit is possibly smaller than the indoor required refrigerating capacity in summer, and the existing solar system is multiple in equipment, low in gas furnace efficiency, troublesome to control and high in risk.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 1 and 2, the modular air-cooled cold and hot water system 1 provided in this embodiment includes a controller 2, a solar hot water tank 3, a hot water tank 6, an outdoor unit 7, an indoor unit 8, a first pipeline 9, a second pipeline 10, a third pipeline 11, a fourth pipeline 12, a fifth pipeline 13, a sixth pipeline 14, a seventh pipeline 15, a first valve 16, a second valve 17, a third valve 18, a fourth valve 19, a fifth valve 20, a sixth valve 21, a seventh valve 22, a first water pump 23, a second water pump 24, a first temperature probe 25, a second temperature probe 26, a third temperature probe 27, and a fourth temperature probe 28. Wherein, this system is water machine system, all walks water in each pipeline.
The outdoor unit 7, the first pipeline 9, the indoor unit 8 and the second pipeline 10 are sequentially connected end to form a circulation loop. A first valve 16 is arranged on the first line 9 and a second valve 17 and a first water pump 23 are arranged on the second line 10.
The holding water tank 6 is connected to a first pipeline 9 and a second pipeline 10 through pipelines, respectively. Specifically, the hot water tank 6 is connected to the first pipeline 9 through a third pipeline 11 and is located between the outdoor unit 7 and the first valve 16, and the third valve 18 is disposed on the third pipeline 11. The holding water tank 6 is also connected to the first pipe 9 via a fifth pipe 13 and is located between the first valve 16 and the indoor unit 8, and a fifth valve 20 is arranged on the fifth pipe 13.
The holding water tank 6 is connected to the second pipeline 10 through a fourth pipeline 12 and is located between the first water pump 23 and the second valve 17, and a fourth valve 19 is arranged on the fourth pipeline 12. The holding water tank 6 is also connected to the second pipe 10 via a sixth pipe 14 and is located between the second valve 17 and the indoor unit 8, and a sixth valve 21 and a second water pump 24 are provided on the sixth pipe 14.
The solar hot water tank 3 is connected to the holding water tank 6 through a seventh pipe 15, and a seventh valve 22 is provided on the seventh pipe 15. The solar water heating tank 3 comprises a domestic hot water tank 4 and a solar water heater 5, and the solar water heater 5 is installed at the top of the domestic hot water tank 4 and used for heating water in the domestic hot water tank 4.
The first temperature sensing probe 25 is installed on the solar hot water tank 3 and used for detecting the water temperature Tr in the solar hot water tank 3, the second temperature sensing probe 26 is installed on the heat preservation water tank 6 and used for detecting the water temperature Ts in the heat preservation water tank 6, the third temperature sensing probe 27 is used for detecting the indoor environment temperature Tn, the controller 2 is used for detecting the indoor environment temperature Tn, and the fourth temperature sensing probe 28 is used for detecting the water temperature T L in the outdoor unit 7.
Referring to fig. 2, the outdoor unit 7, the indoor unit 8, the first valve 16, the second valve 17, the third valve 18, the fourth valve 19, the fifth valve 20, the sixth valve 21, the seventh valve 22, the first water pump 23, the second water pump 24, the first temperature sensing probe 25, the second temperature sensing probe 26, the third temperature sensing probe 27, and the fourth temperature sensing probe 28 are electrically connected to the controller 2, the controller 2 may select a processor having a central control function, and specifically, may select a single chip microcomputer P L C.
The first valve 16, the second valve 17, the third valve 18, the fourth valve 19, the fifth valve 20, the sixth valve 21, and the seventh valve 22 are valves having on and off functions, and specifically, may be butterfly valves or electromagnetic valves.
In this embodiment, the third valve 18, the fourth valve 19, the fifth valve 20, the sixth valve 21, and the seventh valve 22 are all installed on the pipeline, and in other embodiments, these valves may also be installed inside the heat-insulating water tank 6, or be centrally arranged in position, so as to facilitate maintenance and repair.
The modular air-cooled hot and cold water system 1 provided in this embodiment at least includes a cooling mode, a heating mode and an energy storage mode.
1. The working flow of the refrigeration mode is as follows:
s11, please refer to FIG. 3, and control the temperature Ts of the water in the heat preservation water tank 6 to decrease to realize energy storage.
Specifically, typically at night 22: after 00, when the indoor environment temperature Tn is less than or equal to the first preset temperature T1, the controller 2 controls the first valve 16, the second valve 17, the fifth valve 20, the sixth valve 21, and the seventh valve 22 to be turned off, and controls the third valve 18 and the fourth valve 19 to be turned on, so that water flows in a loop formed by the heat-preservation water tank 6 and the outdoor unit 7, thereby reducing the water temperature Ts in the heat-preservation water tank 6 and storing energy. When Ts is less than or equal to 5 ℃, the third valve 18 and the fourth valve 19 are controlled to be closed, and the energy accumulation is finished.
S12: the indoor environment temperature Tn is controlled to be reduced, and refrigeration is realized.
On the one hand, when the indoor ambient temperature Tn is greater than or equal to the second preset temperature T2, the controller 2 controls the third valve 18, the fourth valve 19, the fifth valve 20, the sixth valve 21, and the seventh valve 22 to be turned off, and controls the first valve 16 and the second valve 17 to be turned on, so that water flows through a loop formed by the outdoor unit 7 and the indoor units 8, thereby delivering the refrigerant to the indoor units 8, reducing the indoor ambient temperature Tn, and achieving indoor cooling.
Wherein the second preset temperature T2 may be higher than the first preset temperature T1 by 5 ℃.
On the other hand, when the water temperature T L in the outdoor unit 7 is greater than or equal to the third preset temperature T3 or the indoor environment temperature Tn is greater than or equal to the fourth preset temperature T4, the controller 2 controls the first water pump 23 and the outdoor unit 7 to be closed, controls the first valve 16 and the second valve 17 to be closed, controls the second water pump 24 to be started, controls the fifth valve 20 and the sixth valve 21 to be opened, so that the water flows through the loop formed by the hot water tank 6 and the indoor unit 8, thereby exchanging heat with the chilled water in the hot water tank 6 and cooling the indoor space, and when the water temperature Ts in the hot water tank 6 is greater than or equal to the fifth preset temperature T5, the controller 2 controls the second water pump 24 to be closed, controls the fifth valve 20 and the sixth valve 21 to be closed, controls the first valve 23 and the outdoor unit 7 to be started, controls the first valve 16 and the second valve 17 to be opened, so that the water flows through the loop formed by the outdoor unit 7 and the indoor unit 8, and the indoor unit continues to perform indoor cooling.
Among them, the third preset temperature T3 may be set to 15 ℃, the fourth preset temperature T4 may be set to 30 ℃, and the fifth preset temperature T5 may be set to 15 ℃.
Referring to fig. 4, the working flow of the heating mode is as follows:
s21, the water temperature T L in the outdoor unit 7 is controlled to increase.
Specifically, after the night at 22: 00, when the indoor environment temperature Tn is greater than the first preset temperature T1, the controller 2 controls the first valve 16 and the second valve 17 to be closed, controls the third valve 18 and the fourth valve 19 to be opened, so that the water flows through the loop formed by the heat-preservation water tank 6 and the outdoor unit 7, increases the water temperature Ts in the heat-preservation water tank 6 and the water temperature T L in the outdoor unit 7, and controls the third valve 18 and the fourth valve 19 to be closed and stop heating until the water temperature T L in the outdoor unit 7 reaches the first preset high temperature.
Wherein the first preset high temperature may be set to 55 ℃.
S22: and controlling the indoor environment temperature Tn to increase to realize heating.
Firstly, when the indoor environment temperature Tn is greater than or equal to the second preset high temperature, the controller 2 controls the outdoor unit 7 to be closed, secondly, when the indoor environment temperature is less than the third preset high temperature, the controller 2 controls the first valve 16 and the second valve 17 to be communicated, so that water flows in a loop formed by the outdoor unit 7 and the indoor unit 8, hot water is continuously supplied to the indoor unit 8, and indoor heating is achieved.
Wherein the second preset high temperature may be set to be 5 deg.c lower than the first preset temperature, and the third preset high temperature may be set to be 5 deg.c higher than the first preset temperature.
3. The working process of the energy storage mode is as follows:
when the water temperature Tr in the solar hot water tank 3 is less than or equal to the sixth preset temperature T6, the controller 2 controls the seventh valve 22 to be turned on, so that water flows in a loop formed by the heat preservation water tank 6 and the solar hot water tank 3, hot water in the heat preservation water tank 6 is injected into the solar hot water tank 3, and until the water temperature Tr in the solar hot water tank 3 is greater than or equal to the seventh preset temperature T7, the controller 2 controls the seventh valve 22 to be turned off, and the energy storage is finished.
Wherein the sixth preset temperature T6 may be set to 35 deg.c and the seventh preset temperature T7 may be set to 45 deg.c.
The modular air-cooled cold and hot water system 1 provided by the embodiment has the beneficial effects that:
1. at night in summer, on the premise of meeting the requirements of a user side, the unit does not need to be shut down, the heat source side is automatically switched into the heat preservation water tank 6 from the indoor unit 8, heat exchange is carried out on water in the heat preservation water tank 6 until the water temperature in the heat preservation water tank 6 reaches a set temperature, the water temperature is reduced after the water in the heat preservation water tank 6 is subjected to heat exchange in a shell tube of the outdoor unit 7 for multiple times, energy storage can be realized, hot water is produced in winter in the same way, the unit is shut down to dissipate heat in summer at the stage of the maximum cold load, and heat exchange is carried out by using the water in the heat;
2. on the premise that the user side meets the requirements in winter, the unit heating water is stored in the solar hot water tank 3 and is supplied to the user for use, so that sufficient hot water supply is ensured;
3. modular forced air cooling hot and cold water system 1 can save a large amount of charges of electricity, and holding water box 6 can supply cold volume summer, and holding water box 6 can supply life hot water winter, makes the user obtain more comfortable experience, and the good reliability, easy operation, the unit number of times of shutting down is few, and the stability of system is high.
The connection method of the devices described in this embodiment is only a feasible example, and other modifications of the connection method of the devices to implement the method to be implemented in this embodiment may also be adopted, and these modifications should fall within the scope of the claimed invention as long as they are built around the infrastructure of this embodiment. Wherein, the basic structure of this embodiment is: the outdoor unit 7, the first pipeline 9, the indoor unit 8 and the second pipeline 10 are sequentially connected end to form a circulation loop, the heat preservation water tank 6 is respectively connected to the first pipeline 9 and the second pipeline 10 through pipelines, and the solar hot water tank 3 is connected to the heat preservation water tank 6.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. The utility model provides a modular air-cooled hot and cold water system, characterized in that, modular air-cooled hot and cold water system includes solar hot water tank (3), holding water box (6), off-premises station (7), indoor set (8), first pipeline (9) and second pipeline (10), off-premises station (7) first pipeline (9) indoor set (8) with second pipeline (10) end to end connection in proper order forms circulation circuit, holding water tank (6) are connected to respectively through the pipeline first pipeline (9) with on second pipeline (10), solar hot water tank (3) are connected to holding water tank (6).
2. The modular air-cooled chilled and hot water system according to claim 1, further comprising a first valve (16), a second valve (17) and a first water pump (23), the first valve (16) being disposed on the first pipeline (9), the second valve (17) and the first water pump (23) being disposed on the second pipeline (10).
3. The modular air-cooled chilled and hot water system according to claim 2, further comprising a third pipeline (11), a fourth pipeline (12), a third valve (18) and a fourth valve (19), wherein the holding water tank (6) is connected to the first pipeline (9) through the third pipeline (11) and is located between the outdoor unit (7) and the first valve (16), the third valve (18) is arranged on the third pipeline (11), the holding water tank (6) is connected to the second pipeline (10) through the fourth pipeline (12) and is located between the first water pump (23) and the second valve (17), and the fourth valve (19) is arranged on the fourth pipeline (12).
4. The modular air-cooled chilled and hot water system according to claim 3, further comprising a fifth pipeline (13), a sixth pipeline (14), a fifth valve (20), a sixth valve (21) and a second water pump (24), the heat-preservation water tank (6) is connected to the first pipeline (9) through the fifth pipeline (13) and is positioned between the first valve (16) and the indoor unit (8), the fifth valve (20) is arranged on the fifth pipeline (13), the heat-preservation water tank (6) is connected to the second pipeline (10) through the sixth pipeline (14) and is positioned between the second valve (17) and the indoor unit (8), the sixth valve (21) and the second water pump (24) are arranged on the sixth pipeline (14).
5. The modular air-cooled cold and hot water system according to claim 1, further comprising a seventh pipeline (15) and a seventh valve (22), wherein the solar hot water tank (3) is connected to the holding water tank (6) through the seventh pipeline (15), and wherein the seventh valve (22) is arranged on the seventh pipeline (15).
6. The modular air-cooled cold and hot water system as claimed in claim 1, wherein the solar water heating tank (3) comprises a domestic hot water tank (4) and a solar water heater (5), and the solar water heater (5) is mounted on top of the domestic hot water tank (4) and is used for heating water in the domestic hot water tank (4).
7. The modular air-cooled cold and hot water system as claimed in claim 1, further comprising a controller (2), and a first temperature sensing probe (25) and a second temperature sensing probe (26) electrically connected to the controller (2), wherein the first temperature sensing probe (25) is installed on the solar hot water tank (3) and is used for detecting the water temperature Tr in the solar hot water tank (3), the second temperature sensing probe (26) is installed on the hot water tank (6) and is used for detecting the water temperature Ts in the hot water tank (6), and the controller (2) is used for controlling the water flow direction in the system according to the water temperature Tr and the water temperature Ts.
8. The modular air-cooled water cooling and heating system according to claim 7, further comprising a third temperature sensing probe (27) electrically connected to the controller (2), wherein the third temperature sensing probe (27) is used for detecting an indoor ambient temperature Tn, and the controller (2) is used for detecting a temperature difference between the indoor ambient temperature Tn;
when the indoor environment temperature Tn is less than or equal to a first preset temperature T1, the controller (2) is used for controlling water flow to circulate in a loop formed by the heat-preservation water tank (6) and the outdoor unit (7);
and when the indoor environment temperature Tn is greater than or equal to a second preset temperature T2, the controller (2) is used for controlling the circulation of water flow in a loop formed by the outdoor unit (7) and the indoor unit (8).
9. The modular air-cooled chiller/heater system according to claim 8, further comprising a fourth temperature-sensitive probe (28) electrically connected to the controller (2), wherein the fourth temperature-sensitive probe (28) is used for detecting the temperature of water T L in the outdoor unit (7);
when the water temperature T L is greater than or equal to a third preset temperature T3 or the indoor environment temperature Tn is greater than or equal to a fourth preset temperature T4, the controller (2) is used for controlling water flow to circulate in a loop formed by the heat-preservation water tank (6) and the indoor unit (8);
and when the water temperature Ts is greater than or equal to a fifth preset temperature T5, the controller (2) is used for controlling the circulation of water flow in a loop formed by the outdoor unit (7) and the indoor unit (8).
10. The modular air-cooled cold and hot water system as claimed in claim 7, characterized in that said controller (2) is adapted to control the circulation of water in the circuit formed by said holding tank (6) and said solar hot water tank (3) when said water temperature Tr is lower than or equal to a sixth preset temperature T6.
CN202010303598.7A 2020-04-17 2020-04-17 Modular air-cooling cold and hot water system Pending CN111397041A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010303598.7A CN111397041A (en) 2020-04-17 2020-04-17 Modular air-cooling cold and hot water system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010303598.7A CN111397041A (en) 2020-04-17 2020-04-17 Modular air-cooling cold and hot water system

Publications (1)

Publication Number Publication Date
CN111397041A true CN111397041A (en) 2020-07-10

Family

ID=71437024

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010303598.7A Pending CN111397041A (en) 2020-04-17 2020-04-17 Modular air-cooling cold and hot water system

Country Status (1)

Country Link
CN (1) CN111397041A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114812008A (en) * 2022-04-12 2022-07-29 重庆美的通用制冷设备有限公司 Air-cooled heat pump, control method and device of air-cooled heat pump and readable storage medium

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050119547A (en) * 2004-06-16 2005-12-21 윤명혁 Heat pump system
CN103216898A (en) * 2013-04-23 2013-07-24 天津鼎拓科技有限公司 Refrigeration and heat supply system and refrigeration and heat supply method of solar energy and heat pump system combined operation
CN203116194U (en) * 2013-01-18 2013-08-07 山东创尔沃热泵技术股份有限公司 Household double-energy source high-efficiency high-temperature heat pump unit system
CN103438524A (en) * 2013-08-05 2013-12-11 宁波大学 Solar air conditioner and air-cooled module combined system
CN104457022A (en) * 2014-10-11 2015-03-25 安徽建筑大学 Solar energy-air source heat pump heat recycling combined system
CN104764192A (en) * 2015-03-27 2015-07-08 宁波奥克斯电气有限公司 Modular air cooled heat pump hot water unit
CN105115211A (en) * 2015-09-23 2015-12-02 广东美的暖通设备有限公司 Air cooled heat pump cold and hot water unit and defrosting control method thereof
CN207599913U (en) * 2017-12-04 2018-07-10 河北华航新能源开发集团有限公司 A kind of air-conditioning air cooling module heat supply hold over system
CN212204900U (en) * 2020-04-17 2020-12-22 宁波奥克斯电气股份有限公司 Modular air-cooling cold and hot water system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050119547A (en) * 2004-06-16 2005-12-21 윤명혁 Heat pump system
CN203116194U (en) * 2013-01-18 2013-08-07 山东创尔沃热泵技术股份有限公司 Household double-energy source high-efficiency high-temperature heat pump unit system
CN103216898A (en) * 2013-04-23 2013-07-24 天津鼎拓科技有限公司 Refrigeration and heat supply system and refrigeration and heat supply method of solar energy and heat pump system combined operation
CN103438524A (en) * 2013-08-05 2013-12-11 宁波大学 Solar air conditioner and air-cooled module combined system
CN104457022A (en) * 2014-10-11 2015-03-25 安徽建筑大学 Solar energy-air source heat pump heat recycling combined system
CN104764192A (en) * 2015-03-27 2015-07-08 宁波奥克斯电气有限公司 Modular air cooled heat pump hot water unit
CN105115211A (en) * 2015-09-23 2015-12-02 广东美的暖通设备有限公司 Air cooled heat pump cold and hot water unit and defrosting control method thereof
CN207599913U (en) * 2017-12-04 2018-07-10 河北华航新能源开发集团有限公司 A kind of air-conditioning air cooling module heat supply hold over system
CN212204900U (en) * 2020-04-17 2020-12-22 宁波奥克斯电气股份有限公司 Modular air-cooling cold and hot water system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114812008A (en) * 2022-04-12 2022-07-29 重庆美的通用制冷设备有限公司 Air-cooled heat pump, control method and device of air-cooled heat pump and readable storage medium

Similar Documents

Publication Publication Date Title
CN108834366B (en) Air conditioning system of data machine room
CN110131816B (en) Auxiliary machinery refrigerated water side evaporative cooling system
CN101650098A (en) Solar energy-ground source heat pump self-balancing comprehensive application system
CN210197600U (en) Secondary pump variable flow chilled water system with energy storage device
CN113819514B (en) Air conditioning system and control method thereof
CN212204900U (en) Modular air-cooling cold and hot water system
CN102889650A (en) Integral combination type computer room air conditioning unit and control method thereof
CN107575972A (en) A kind of heat pipe air conditioner all-in-one and its control method with phase-change accumulation energy
CN105674449A (en) Triple-generation system based on energy-saving solar air source heat pump
CN111397041A (en) Modular air-cooling cold and hot water system
CN203464414U (en) Dynamic ice-storage system in two preheating modes
CN201731581U (en) Novel water cold accumulation system
CN214757525U (en) Data center air conditioning system capable of utilizing natural cold source all year round
CN205316561U (en) Modularization natural cooling unit of container formula
CN214536593U (en) Anti-freezing type indirect evaporative cooling air conditioning device and system for data center
CN214949911U (en) Ground source heat pump economizer system
CN211451096U (en) Integrated hybrid cycle system heat pump cooling and heating machine
CN201569215U (en) Energy-saving thermal equilibrium water-cooling type refrigeration heat recovery control device
CN105571028B (en) A kind of modularization natural cooling unit of container-type
CN221923762U (en) Heating system for supplying domestic hot water and heating by air conditioner by air source hot water unit
CN203240679U (en) Central air-conditioning system with water storage tank
CN221611619U (en) Cold and warm station system
CN219976602U (en) Water-cooling multi-connected air conditioning system for subway station
CN204063369U (en) A kind of cold-storage water bank switching system
CN218410077U (en) Cold and heat source control system combining electric heat storage and air-cooled heat pump

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination