CN110608499B - Energy storage type fresh air system and control method thereof - Google Patents
Energy storage type fresh air system and control method thereof Download PDFInfo
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- CN110608499B CN110608499B CN201910980181.1A CN201910980181A CN110608499B CN 110608499 B CN110608499 B CN 110608499B CN 201910980181 A CN201910980181 A CN 201910980181A CN 110608499 B CN110608499 B CN 110608499B
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- 238000004146 energy storage Methods 0.000 title claims abstract description 100
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000011084 recovery Methods 0.000 claims abstract description 105
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 description 30
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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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
- 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
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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
- 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
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/002—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of 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
- 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
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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
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output 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
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/002—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
- F24F2012/005—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid using heat pipes
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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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
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an energy-storage fresh air system and a control method thereof, wherein the system comprises a control device and an adjustable energy recovery and release device arranged in an air inlet duct, the control device is used for controlling the adjustable energy recovery and release device to absorb and store high-temperature energy or low-temperature energy in air entering from the outside according to the temperature of the outside air, and is also used for controlling the adjustable energy recovery and release device to release the stored high-temperature energy or low-temperature energy according to the indoor temperature demand. By adopting the technical scheme of the invention, the air energy outdoors can be effectively utilized to adjust the indoor air temperature.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to an energy storage type fresh air system and a control method thereof.
Background
At present, the fresh air ventilator is widely applied to various places, and has the function of filtering outdoor fresh air and then introducing the filtered outdoor fresh air into a room, so that the cleanness and the freshness of the indoor air are ensured. However, in the high latitude area or the desert where the ambient day and night temperature difference is large, considering that the night temperature is low and the day temperature is high, the possibility of further recovering energy to reduce power consumption exists, for example, the energy of low-temperature gas at night is collected for reducing the fresh air supply temperature in the day; and collecting higher gas energy in the daytime and improving the fresh air feeding temperature at night. The fresh air comfort of the product has low energy consumption of an air conditioning system and has extremely strong practical significance. In the prior art, the effect of the fresh air machine is only air exchange, and the air outlet temperature of the fresh air machine cannot be adjusted according to the day-night temperature difference.
Disclosure of Invention
The invention aims to provide an energy-storage fresh air system and a control method thereof, aiming at the technical problem that the fresh air machine in the prior art cannot adjust the air outlet temperature of the fresh air machine according to the day-night temperature difference.
The embodiment of the invention provides an energy storage type fresh air system, which comprises a control device and an adjustable energy recovery and release device arranged in an air inlet duct, wherein the control device is used for controlling the adjustable energy recovery and release device to absorb and store high-temperature energy or low-temperature energy in air entering from the outside according to the temperature of outdoor air and controlling the adjustable energy recovery and release device to release the stored high-temperature energy or low-temperature energy according to the indoor temperature requirement.
In the embodiment of the invention, the adjustable energy recovery and release device comprises an adjustable energy recovery heat pipe, an adjustable energy release heat pipe, a low-temperature energy storage device and a high-temperature energy storage control device, wherein the adjustable energy recovery heat pipe is respectively connected with the low-temperature energy storage device and the high-temperature energy storage control device through a first control valve and a second control valve, the adjustable energy release heat pipe is respectively connected with the low-temperature energy storage device and the high-temperature energy storage control device through a third control valve and a fourth control valve, and the first control valve, the second control valve, the third control valve and the fourth control valve are respectively connected with the control device.
In the embodiment of the invention, the energy-storage fresh air system further comprises an air inlet fan arranged in the air inlet duct, and the air inlet fan is used for extracting outdoor air and conveying the outdoor air to the indoor.
In the embodiment of the invention, the energy storage type fresh air system further comprises an exhaust fan arranged in the exhaust air duct, and the exhaust fan is used for extracting indoor air and exhausting the indoor air to the outside.
In the embodiment of the invention, the energy storage type fresh air system further comprises a total heat core exchange assembly, wherein one part of the total heat core exchange assembly is arranged in the air inlet air duct, and the other part of the total heat core exchange assembly is arranged in the air outlet air duct and is used for exchanging heat between air in the air inlet air duct and air in the air outlet air duct.
In the embodiment of the invention, the energy storage type fresh air system further comprises a fresh air temperature sensing bulb arranged at the air inlet of the air inlet duct and an air supply temperature sensing bulb arranged at the air supply outlet of the air inlet duct.
In an embodiment of the present invention, the control device controls the adjustable energy recovery and release device to absorb and store high temperature energy or low temperature energy in air entering from the outside according to the temperature of the outdoor air, and the control device includes:
if the outdoor air temperature is lower than the set low temperature, controlling the adjustable energy recovery and release device to absorb and store the low temperature energy in the air entering from the outdoor;
if the outdoor air temperature is higher than the set high temperature, controlling the adjustable energy recovery and release device to absorb and store the high temperature energy in the air entering from the outdoor;
and if the outdoor air temperature is between the set first temperature and the set second temperature, controlling the adjustable energy recovery and release device to stop absorbing and storing the energy in the air entering from the outdoor.
In the embodiment of the invention, when the stored high-temperature energy/low-temperature energy of the adjustable energy recovery and release device is full, the control platform controls the adjustable energy recovery and release device to stop absorbing and storing the high-temperature energy/low-temperature energy.
In the embodiment of the present invention, the control device controls the adjustable energy recovery and release device to release the stored high-temperature energy or low-temperature energy according to the indoor temperature requirement, and the method includes:
when the difference between the indoor demand temperature set by the user and the actual air supply temperature of the energy storage type fresh air system exceeds a set temperature range, if the indoor demand temperature set by the user is greater than the actual air supply temperature of the energy storage type fresh air system, controlling the adjustable energy recovery and release device to release high-temperature energy, otherwise, controlling the adjustable energy recovery and release device to release low-temperature energy;
when the difference between the indoor demand temperature set by the user and the actual air supply temperature of the energy storage type fresh air system accords with the set temperature range, the adjustable energy recovery and release device is controlled to not release energy.
The embodiment of the invention also provides a control method of the energy storage type fresh air system, which is characterized by comprising the following steps:
the adjustable energy recovery and release device is controlled according to the outdoor air temperature to absorb and store high temperature energy or low temperature energy in the air entering from the outside,
if the outdoor air temperature is lower than the set low temperature, controlling the adjustable energy recovery and release device to absorb and store the low temperature energy in the air entering from the outdoor;
if the outdoor air temperature is higher than the set high temperature, controlling the adjustable energy recovery and release device to absorb and store the high temperature energy in the air entering from the outdoor;
and if the outdoor air temperature is between the set first temperature and the set second temperature, controlling the adjustable energy recovery and release device to stop absorbing and storing the energy in the air entering from the outdoor.
In the embodiment of the invention, the control method of the energy storage type fresh air system further comprises the following steps:
judging whether the stored high-temperature energy/low-temperature energy of the adjustable energy recovery and release device is full, if yes, stopping absorbing and storing the high-temperature energy/low-temperature energy.
In the embodiment of the invention, the control method of the energy storage type fresh air system further comprises the following steps: :
when the difference between the indoor demand temperature set by the user and the actual air supply temperature of the energy storage type fresh air system exceeds a set temperature range, if the indoor demand temperature set by the user is greater than the actual air supply temperature of the energy storage type fresh air system, controlling the adjustable energy recovery and release device to release high-temperature energy, otherwise, controlling the adjustable energy recovery and release device to release low-temperature energy;
when the difference between the indoor demand temperature set by the user and the actual air supply temperature of the energy storage type fresh air system accords with the set temperature range, the adjustable energy recovery and release device is controlled to not release energy.
Compared with the prior art, in the energy storage type fresh air system, the control device is used for controlling the adjustable energy recovery and release device to absorb and store high-temperature energy or low-temperature energy in air entering from the outside according to the temperature of the outside air, so that the energy in the air can be absorbed during the daytime, released at night, absorbed at night and released during the daytime, and the air outlet temperature of the fresh air machine is adjusted according to the temperature difference between day and night, so that the energy in the outside air is effectively utilized, and the energy storage fresh air system is energy-saving and environment-friendly.
Drawings
Fig. 1 is a schematic structural diagram of an energy-storage fresh air system according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of an adjustable energy-releasing heat-absorbing tube according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a first control state of the energy-storage fresh air system according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a second control state of the energy storage type fresh air system according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of a third control state of the energy-storage fresh air system according to the embodiment of the invention.
Fig. 6 is a schematic diagram of a fourth control state of the energy-storage fresh air system according to the embodiment of the invention.
Fig. 7 is a flowchart of a control method of an energy storage type fresh air system according to an embodiment of the present invention.
Detailed Description
The invention provides an energy-storage fresh air system which comprises a control device and an adjustable energy recovery and release device arranged in an air inlet duct, wherein the control device is used for controlling the adjustable energy recovery and release device to absorb and store high-temperature energy or low-temperature energy in air entering from the outside according to the temperature of the outside air, and controlling the adjustable energy recovery and release device to release the stored high-temperature energy or low-temperature energy according to the indoor temperature demand.
In the embodiment of the invention, as shown in fig. 1, the adjustable energy recovery and release device comprises an adjustable energy recovery heat pipe, an adjustable energy release heat pipe, a low-temperature energy storage device and a high-temperature energy storage control device, wherein the adjustable energy recovery heat pipe is respectively connected with the low-temperature energy storage device and the high-temperature energy storage control device through a first control valve and a second control valve, the adjustable energy release heat pipe is respectively connected with the low-temperature energy storage device and the high-temperature energy storage control device through a third control valve and a fourth control valve, and the first control valve, the second control valve, the third control valve and the fourth control valve are respectively connected with the control device.
The adjustable energy recovery heat pipe is used for absorbing high-temperature energy or low-temperature energy in air entering from outside. The low-temperature energy storage device is used for storing low-temperature energy absorbed by the adjustable energy recovery heat pipe from air entering outdoors. The high-temperature energy storage device is used for storing high-temperature energy absorbed by the adjustable energy recovery heat pipe from air entering outdoors. The adjustable energy release heat pipe is used for releasing the low-temperature energy stored by the low-temperature energy storage device or the high-temperature energy stored by the high-temperature energy storage device, so that the temperature of the air entering the room is reduced or increased. The control device controls the working states of the adjustable energy recovery and release device by controlling the states of the first control valve, the second control valve, the third control valve and the fourth control valve, so that the temperature of air entering a room is adjusted.
As shown in fig. 2, the adjustable energy recovery heat pipe includes a servo motor 11, a rotary mounting base 12, a heat pipe heat recovery device 13, and an energy transfer pipeline 14. The heat pipe heat recovery device 13 can absorb energy in the windward air and transmit the energy to the low-temperature energy storage device or the high-temperature energy storage device through the energy transmission pipeline 14. The windward angle and the area of the heat pipe heat recovery device 13 can be adjusted by the servo motor 11, so that the energy absorbing effect of the heat pipe heat recovery device is adjusted. The adjustable energy release heat pipe and the adjustable energy recovery heat pipe have the same structure, and the energy release process is opposite to the energy absorption process of the adjustable energy absorption heat pipe.
Further, the adjustable energy recovery and release device further comprises a total heat core exchange assembly, an air inlet fan (not shown) arranged in the air inlet duct and an air exhaust fan (not shown) arranged in the air exhaust duct. The air inlet fan is used for extracting outdoor air and conveying the outdoor air indoors, and the air exhaust fan is used for extracting indoor air and exhausting the indoor air outdoors, so that indoor and outdoor air is circulated. It should be noted that the air inlet duct and the air outlet duct are two completely independent pipelines. And one part of the total heat core exchange component is arranged in the air inlet air duct, the other part of the total heat core exchange component is arranged in the air exhaust air duct and exchanges heat with air in the air supply air duct and air in the air exhaust air duct respectively, so that the air in the air inlet air duct and the air in the air exhaust air duct are subjected to heat exchange, and the temperature of the air entering the room is further regulated. The energy-storage fresh air system further comprises a fresh air temperature sensing bulb arranged at the air inlet of the air inlet air duct and an air supply temperature sensing bulb arranged at the air supply outlet of the air inlet air duct, wherein the fresh air temperature sensing bulb is used for sensing outdoor temperature Tx, and the air supply temperature sensing bulb is used for sensing actual air supply temperature Ts of the energy-storage fresh air system.
The adjustable energy recovery and release device has four control states, which are described below.
First control state: and (5) a non-energy storage and non-regulation state. At this time, as shown in fig. 3, the adjustable energy recovery heat pipe, the adjustable energy release heat pipe, the low-temperature energy storage device, and the high-temperature energy storage control device do not operate.
Second control state: and storing energy and regulating the state. At this time, as shown in fig. 4, the adjustable energy recovery heat pipe absorbs outdoor air energy, the low temperature energy storage device or the high temperature energy storage control device stores energy, and the low temperature energy storage device or the high temperature energy storage control device releases energy through the adjustable energy release heat pipe.
And the third control state is a non-energy storage and regulation state. At this time, as shown in fig. 5, the adjustable energy recovery heat pipe does not absorb the energy of the outdoor air, and the low-temperature energy storage device or the high-temperature energy storage control device releases energy through the adjustable energy release heat pipe.
And the fourth control state is an energy storage and non-regulation state. At this time, as shown in fig. 6, the adjustable energy recovery heat pipe absorbs the energy of the outdoor air, the adjustable energy release heat pipe does not work, and the low-temperature energy storage device or the high-temperature energy storage control device stores the energy.
In an embodiment of the present invention, a low temperature capable of absorbing low temperature energy from outdoor air and a high temperature capable of absorbing high temperature energy from outdoor air may be set according to the heat recovery capability of the adjustable energy recovery heat pipe, and the control device controls the adjustable energy recovery and release device to absorb and store high temperature energy or low temperature energy in air entering from outdoor according to a comparison relation between outdoor air temperature and the high temperature and the low temperature, including:
if the outdoor air temperature is lower than the set low-temperature, starting the adjustable energy recovery heat pipe and the low-temperature energy storage device, and controlling the adjustable energy recovery and release device to absorb and store low-temperature energy in the air entering from the outdoor;
if the outdoor air temperature is higher than the set high-temperature, starting the adjustable energy recovery heat pipe and the high-temperature energy storage device, and controlling the adjustable energy recovery and release device to absorb and store high-temperature energy in the air entering from the outdoor;
and if the outdoor air temperature is between the set first temperature and the set second temperature, closing the adjustable energy recovery heat pipe, and controlling the adjustable energy recovery and release device to stop absorbing and storing the energy in the air entering from the outdoor.
In the process of absorbing energy, if the energy stored by the low-temperature energy storage device or the high-temperature energy storage device is full, the control platform controls the adjustable energy recovery and release device to stop absorbing and storing the high-temperature energy/the low-temperature energy.
Further, the control device controls the adjustable energy recovery and release device to release the stored high-temperature energy or low-temperature energy according to the indoor temperature requirement, and the control device comprises:
when the difference between the indoor demand temperature set by the user and the actual air supply temperature of the energy storage type fresh air system exceeds a set temperature range, if the indoor demand temperature set by the user is greater than the actual air supply temperature of the energy storage type fresh air system, controlling the adjustable energy recovery and release device to release high-temperature energy, otherwise, controlling the adjustable energy recovery and release device to release low-temperature energy;
when the difference between the indoor demand temperature set by the user and the actual air supply temperature of the energy storage type fresh air system accords with the set temperature range, the adjustable energy recovery and release device is controlled to not release energy.
Specifically, as shown in fig. 7, in an embodiment of the present invention, the working process of the energy storage type fresh air system is as follows:
setting indoor air supply demand temperature T, outdoor air temperature Tx sensed by a fresh air temperature sensing bulb, air inlet temperature Ts sensed by the air supply temperature sensing bulb,
firstly, judging whether the difference value between the indoor demand temperature T set by a user and the actual air supply temperature Ts of the energy storage type fresh air system exceeds a set temperature range, namely |Ts-T is set to be |Tor more than K, wherein K is a set numerical value;
if the |Ts-T is set to be more than or equal to K, judging the comparison relation between the outdoor air temperature Tx and the set low temperature A and high temperature B,
if A is less than Tx is less than B, further judging that Ts is less than T, if so, controlling the adjustable energy recovery and release device to enter a third working state, not absorbing air energy, and releasing high-temperature energy; otherwise, the air energy is not absorbed, and the low-temperature energy is released;
if Tx is less than or equal to A, judging whether P is equal to 1 (P is an energy storage ratio coefficient of the low-temperature energy storage device, P=1 indicates that energy is stored fully), and if so, controlling the adjustable energy recovery and release device to enter a third working state, not absorbing air energy and releasing high-temperature energy; otherwise, controlling the adjustable energy recovery and release device to enter a second working state, absorbing low-temperature energy and releasing high-temperature energy;
if Tx is more than or equal to B, judging whether Q is equal to 1 (Q is an energy storage ratio coefficient of the high-temperature energy storage device, Q=1 indicates that energy is stored fully), and if so, controlling the adjustable energy recovery and release device to enter a third working state, not absorbing air energy and releasing low-temperature energy; otherwise, controlling the adjustable energy recovery and release device to enter a second working state, absorbing high-temperature energy and releasing low-temperature energy;
if |Ts-T is set to be |less than K, the comparison relation between the outdoor air temperature Tx and the set low temperature A and high temperature B is further judged,
if A < Tx < B, controlling the adjustable energy recovery and release device to enter a first working state, and not absorbing energy or releasing energy;
if Tx is less than or equal to A, judging whether P is equal to 1, if so, controlling the adjustable energy recovery and release device to enter a first working state, and not absorbing energy and not releasing energy; otherwise, controlling the adjustable energy recovery and release device to enter a fourth working state, absorbing low-temperature energy and not releasing energy;
if Tx is more than or equal to B, judging whether Q is equal to 1, if so, controlling the adjustable energy recovery and release device to enter a first working state, and not absorbing energy and not releasing energy; otherwise, the adjustable energy recovery and release device is controlled to enter a fourth working state to absorb high-temperature energy and not release energy.
Through the control mode, the working state of the adjustable energy recovery and release device is adjusted according to the outdoor air temperature, the indoor temperature and the set temperature, so that the energy in the outdoor air can be effectively utilized to adjust the indoor air temperature, and the energy-saving and environment-friendly effects are achieved.
In summary, in the energy-storage fresh air system of the present invention, the control device is configured to control the adjustable energy recovery and release device to absorb and store the high temperature energy or the low temperature energy in the air entering from the outside according to the outdoor air temperature, so as to absorb the high temperature energy in the air during the daytime, release the energy at night, absorb the low temperature energy in the air during the night, and release the energy during the daytime, thereby realizing adjustment of the air outlet temperature of the fresh air machine according to the day-night temperature difference, effectively utilizing the energy in the outdoor air, saving energy and protecting environment.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (12)
1. The energy storage type fresh air system is characterized by comprising a control device and an adjustable energy recovery and release device arranged in an air inlet duct, wherein the control device is used for controlling the adjustable energy recovery and release device to absorb and store high-temperature energy or low-temperature energy in air entering from the outside according to the temperature of the outside air, and controlling the adjustable energy recovery and release device to release the stored high-temperature energy or low-temperature energy according to the indoor temperature requirement;
the adjustable energy recovery and release device comprises an adjustable energy recovery heat pipe, an adjustable energy release heat pipe, a low-temperature energy storage device and a high-temperature energy storage control device;
the adjustable energy recovery heat pipe comprises a heat pipe heat recovery device capable of absorbing energy in windward air, and a heat transmission pipeline for transmitting the energy absorbed by the heat pipe heat recovery device to a low-temperature energy storage device or a high-temperature energy storage device and a servo motor for adjusting windward angle and area of the heat pipe heat recovery device; the adjustable energy release heat pipe and the adjustable energy recovery heat pipe have the same structure, and the energy release process is opposite to the energy absorption process of the adjustable energy absorption heat pipe.
2. The energy-storage fresh air system according to claim 1, wherein the adjustable energy recovery heat pipe is connected to the low-temperature energy storage device and the high-temperature energy storage control device through a first control valve and a second control valve, respectively, the adjustable energy release heat pipe is connected to the low-temperature energy storage device and the high-temperature energy storage control device through a third control valve and a fourth control valve, respectively, and the first control valve, the second control valve, the third control valve and the fourth control valve are connected to the control device, respectively.
3. The energy-storage fresh air system of claim 1, further comprising an air intake fan disposed in the air intake duct, the air intake fan configured to draw out outdoor air and deliver the outdoor air to the room.
4. The energy-storage fresh air system according to claim 3, further comprising an exhaust fan disposed in the exhaust duct, the exhaust fan being configured to draw in indoor air and exhaust the indoor air to the outside.
5. The energy-storage fresh air system of claim 4, further comprising a total heat core exchange assembly, wherein a portion of the total heat core exchange assembly is disposed in the intake duct and another portion of the total heat core exchange assembly is disposed in the exhaust duct for exchanging heat between air in the intake duct and air in the exhaust duct.
6. The energy-storage fresh air system of claim 1, further comprising a fresh air bulb disposed at an inlet of the air intake duct and an air supply bulb disposed at an outlet of the air intake duct.
7. The energy-storage fresh air system according to claim 1, wherein the control means controls the adjustable energy recovery and release means to absorb and store high-temperature energy or low-temperature energy in the air taken in from the outside according to the temperature of the outside air, comprising:
if the outdoor air temperature is lower than the set low temperature, controlling the adjustable energy recovery and release device to absorb and store the low temperature energy in the air entering from the outdoor;
if the outdoor air temperature is higher than the set high temperature, controlling the adjustable energy recovery and release device to absorb and store the high temperature energy in the air entering from the outdoor;
and if the outdoor air temperature is between the set first temperature and the set second temperature, controlling the adjustable energy recovery and release device to stop absorbing and storing the energy in the air entering from the outdoor.
8. The energy-storage fresh air system according to claim 7, wherein the control platform controls the adjustable energy recovery and release device to stop absorbing and storing the high temperature energy/the low temperature energy when the stored high temperature energy/the low temperature energy of the adjustable energy recovery and release device is full.
9. The energy-storage fresh air system according to claim 1, 7 or 8, wherein the control device controls the adjustable energy recovery and release device to release the stored high-temperature energy or low-temperature energy according to indoor temperature demand, comprising:
when the difference between the indoor demand temperature set by the user and the actual air supply temperature of the energy storage type fresh air system exceeds a set temperature range, if the indoor demand temperature set by the user is greater than the actual air supply temperature of the energy storage type fresh air system, controlling the adjustable energy recovery and release device to release high-temperature energy, otherwise, controlling the adjustable energy recovery and release device to release low-temperature energy;
when the difference between the indoor demand temperature set by the user and the actual air supply temperature of the energy storage type fresh air system accords with the set temperature range, the adjustable energy recovery and release device is controlled to not release energy.
10. A method of controlling an energy-storing fresh air system according to any one of claims 1 to 6, comprising:
the adjustable energy recovery and release device is controlled according to the outdoor air temperature to absorb and store high temperature energy or low temperature energy in the air entering from the outside,
if the outdoor air temperature is lower than the set low temperature, controlling the adjustable energy recovery and release device to absorb and store the low temperature energy in the air entering from the outdoor;
if the outdoor air temperature is higher than the set high temperature, controlling the adjustable energy recovery and release device to absorb and store the high temperature energy in the air entering from the outdoor;
and if the outdoor air temperature is between the set first temperature and the set second temperature, controlling the adjustable energy recovery and release device to stop absorbing and storing the energy in the air entering from the outdoor.
11. The method for controlling an energy-storage fresh air system according to claim 10, further comprising:
judging whether the stored high-temperature energy/low-temperature energy of the adjustable energy recovery and release device is full, if yes, stopping absorbing and storing the high-temperature energy/low-temperature energy.
12. The method for controlling an energy-storage fresh air system according to claim 11, further comprising:
when the difference between the indoor demand temperature set by the user and the actual air supply temperature of the energy storage type fresh air system exceeds a set temperature range, if the indoor demand temperature set by the user is greater than the actual air supply temperature of the energy storage type fresh air system, controlling the adjustable energy recovery and release device to release high-temperature energy, otherwise, controlling the adjustable energy recovery and release device to release low-temperature energy;
when the difference between the indoor demand temperature set by the user and the actual air supply temperature of the energy storage type fresh air system accords with the set temperature range, the adjustable energy recovery and release device is controlled to not release energy.
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| CN111397034A (en) * | 2020-02-27 | 2020-07-10 | 华为技术有限公司 | Refrigeration device, control method for refrigeration device, control device, and refrigeration system |
| CN111780315A (en) * | 2020-07-17 | 2020-10-16 | 龚雪 | Ventilation heating ventilation air conditioning equipment based on new forms of energy auxiliary energy supply |
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