CN106594930B - Energy-saving air conditioning system for machine room - Google Patents
Energy-saving air conditioning system for machine room Download PDFInfo
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- CN106594930B CN106594930B CN201611178752.2A CN201611178752A CN106594930B CN 106594930 B CN106594930 B CN 106594930B CN 201611178752 A CN201611178752 A CN 201611178752A CN 106594930 B CN106594930 B CN 106594930B
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 53
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 230000007547 defect Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 238000001816 cooling Methods 0.000 description 10
- 238000005057 refrigeration Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- 230000001360 synchronised effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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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
- F24F5/0007—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
- F24F5/001—Compression cycle type
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
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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
- F24F13/28—Arrangement or mounting of filters
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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
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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
- F24F2110/20—Humidity
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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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- 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
- F24F11/65—Electronic processing for selecting an operating mode
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- Sustainable Development (AREA)
- Atmospheric Sciences (AREA)
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Abstract
The invention relates to the field of air conditioners, in particular to an energy-saving machine room air conditioning system, which comprises: the refrigerator comprises a shell, a refrigerating mechanism indoor part, an indoor fan, an outdoor air inlet channel and a controller, wherein the outdoor air inlet channel is arranged on the shell and is communicated with the outdoor and the inner cavity; the controller controls the outdoor air inlet channel and the upstream part of the circulating channel, which is connected with the inner cavity, to be communicated and cut off, wherein when the outdoor air inlet channel is opened, the circulating channel is closed; when the outdoor air inlet channel is closed, the circulating channel is opened. The invention aims to overcome the defects of complex structure and large occupied space of an energy-saving machine room air conditioning system in the prior art, thereby providing the energy-saving machine room air conditioning system with simple structure and small occupied space.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to an energy-saving air conditioning system for a machine room.
Background
With the warming of global climate, the energy is in continuous shortage, and people have stronger and stronger demand and dependence on energy, so that the energy-saving technology is increasingly emphasized.
With the development of network communication technology, the number of electronic machine rooms is gradually increased, and because the heat load of the existing machine rooms is large, cooling needs to be supplied all the year round, and even in winter, the air conditioner of the machine room is in a refrigerating and humidifying state. Therefore, the air conditioning equipment installed in the machine room must be operated for a long time, and its power consumption is large.
In the prior art, many energy-saving technologies of machine rooms mainly save energy through the temperature difference of indoor air and outdoor air. Such as: the outdoor cold air is directly introduced into the machine room or the energy of the outside air is utilized by means of heat exchange. The mode of directly introducing outdoor cold air has higher efficiency, but the outdoor air is dirty, the cleanliness of a machine room cannot be solved, and the humidity cannot be guaranteed. The heat exchange method is inefficient, and the humidity problem is still not solved. For this purpose, chinese patent document CN102200333A discloses an energy-saving air conditioning system, which includes an air intake system with an electric air intake door, an air filter screen, a cooling, dedusting and humidifying water curtain and a fan, an exhaust system with an electric exhaust door, and an intelligent energy-saving controller. Wherein the cooling, dedusting and humidifying water curtain consists of a water curtain body and a circulating water tank. The water curtain body is connected with a circulating water tank through a circulating pipeline, and a circulating water pump is arranged in the circulating pipeline. The intelligent energy-saving controller consists of an indoor temperature and humidity transmitter for collecting and transmitting the relative humidity and the temperature of indoor air, an outdoor temperature and humidity transmitter for collecting and transmitting the relative humidity and the temperature of outdoor air, a control chip for calculating the wet bulb temperature of the outdoor air according to the relative humidity and the temperature of the outdoor air, and a driving circuit for driving an air inlet system to be opened according to a control signal sent by the control chip. When the wet bulb temperature of outdoor air is smaller than a preset wet bulb temperature threshold value, the indoor temperature is larger than a first preset upper limit value, and the indoor relative humidity is smaller than a preset lower limit value, sending a control signal; the air inlet system is opened, the introduced air passes through the electric air inlet door of the air inlet system and the air filter screen and then contacts with the circulating water at the water curtain body of the cooling, dedusting and humidifying water curtain of the air inlet system, the partial pressure of the water vapor on the surface of the water curtain body is increased by the operation of the fan of the air inlet system, the introduced air of the air inlet system is cooled and humidified by the evaporation of the circulating water, and then the introduced air is sent into the machine room. The exhaust system is controlled by the intelligent energy-saving controller and is used for exhausting the air which is used for cooling and humidifying the machine room to the outside.
Above-mentioned in use, this energy-conserving air conditioning system among the prior art needs to use with the cooperation of computer lab air conditioner, and separately sets up, independent operation separately from it for air conditioning equipment occupies very big space in the computer lab from this, and energy-conserving air conditioning system and computer lab air conditioner independent operation separately, then has a large amount of function repetition's parts and mechanism in the aspect of temperature humidity control, makes the structure complicated.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects of complex structure and large occupied space of the air conditioning system of the energy-saving machine room in the prior art, so that the air conditioning system of the energy-saving machine room, which is simple in structure and small in occupied space, is provided.
An energy-saving machine room air conditioning system comprising:
the air conditioner comprises a shell, a fan and a control device, wherein the shell is provided with an inner cavity and a circulating channel for communicating a room and the inner cavity, and an air inlet and an air outlet of the circulating channel are arranged on the shell;
a refrigeration mechanism indoor portion disposed in the inner cavity;
the indoor fan is positioned in the circulating channel and is arranged on the shell;
also comprises
The outdoor air inlet channel is arranged on the shell and is communicated with the outdoor and the inner cavity; and
the controller controls the outdoor air inlet channel and the upstream part of the circulating channel, which is connected with the inner cavity, to be communicated and cut off, wherein when the outdoor air inlet channel is opened, the circulating channel is closed; when the outdoor air inlet channel is closed, the circulating channel is opened.
The outdoor air inlet channel is provided with an outdoor electric air valve which is controlled by the controller and can adjust the air inlet amount, and the air inlet of the circulating channel is provided with an indoor electric air valve which is controlled by the controller and can adjust the air inlet amount.
And an exhaust channel for communicating the indoor space and the outdoor space is also arranged, and the exhaust channel and the outdoor air inlet channel are synchronously opened and closed.
And the exhaust channel is provided with an exhaust electric air valve which is controlled by the controller and can adjust the air output.
An exhaust fan controlled by the controller is arranged in the exhaust channel, and the exhaust fan works when the exhaust channel is communicated.
The humidifier is arranged in the shell and connected with the controller, and a humidity detector connected with the controller is arranged indoors and/or outdoors.
The outlet of the humidifier is provided with a humidifying drainage tube, and the free end of the humidifying drainage tube faces the outdoor air inlet channel.
The shell is also internally provided with a heater controlled by the controller, and the indoor and/or outdoor temperature detector connected with the controller is/are arranged.
The heater is arranged at one end of the outdoor air inlet channel entering the inner cavity.
The indoor fan is an EC centrifugal fan arranged at the air outlet of the circulating channel.
Still including being provided with the exhaust pipe in a plurality of holes of airing exhaust, exhaust pipe one end is in with the setting casing upper portion circulation passageway air outlet intercommunication, the other end extend to computer lab equipment upper portion.
Still including being provided with the exhaust pipe in a plurality of holes of airing exhaust, exhaust pipe one end is in with the setting the casing upper portion circulation passageway air outlet intercommunication, the other end extend to computer lab equipment bottom and with the casing intercommunication of computer lab equipment.
And the part of the outdoor air inlet channel, which is positioned outdoors, is provided with a rain-proof cover.
An air inlet mesh enclosure is arranged at the inlet of the rain sheltering cover.
And at least one stage of filtering device is arranged in the outdoor air inlet channel.
The filter device comprises an insect-proof net and a filter, wherein the insect-proof net and the filter are arranged in the outdoor air inlet channel, and the insect-proof net is closer to one side of the outdoor air inlet channel.
The technical scheme of the invention has the following advantages:
1. the air conditioning system of the energy-saving machine room comprises: the refrigerator comprises a shell, a circulating channel, an indoor part of a refrigerating mechanism and an indoor fan, wherein the shell is provided with an inner cavity and a circulating channel for communicating the indoor part and the inner cavity, and an air inlet and an air outlet of the circulating channel are arranged on the shell; a refrigeration mechanism indoor portion disposed in the inner cavity; the indoor fan is positioned in the circulating channel and is arranged on the shell; the outdoor air inlet channel is arranged on the shell and is communicated with the outdoor and the inner cavity; the controller controls the conduction and the cut-off of the outdoor air inlet channel and the upstream part of the circulating channel connected with the inner cavity, wherein when the outdoor air inlet channel is opened, the circulating channel is closed; outdoor air inlet channel closes when, circulation channel opens, therefore, refrigeration mechanism and outdoor air inlet channel set up in same casing, sharing indoor fan, reach the integrated design purpose, occupation space reduces greatly, and no matter indoor air or outdoor air all follow same casing business turn over, also be favorable to in coordination, it is more accurate to humidity and temperature control, and nature cold source and refrigeration mechanism can carry out corresponding selection operation according to the outdoor temperature condition, can move alone, each other does not influence, complement each other again, intelligent control can be realized to the whole system, the reliability of greatly increased system operation.
2. In the energy-saving machine room air conditioning system, the outdoor air inlet channel is provided with the outdoor electric air valve which is controlled by the controller and can adjust the air inlet amount, and the air inlet of the circulating channel is provided with the indoor electric air valve which is controlled by the controller and can adjust the air inlet amount, so that the outdoor air inlet amount can be controlled by the outdoor electric air valve, and the indoor air inlet amount can be controlled by the indoor electric air valve and can be accurately controlled according to the actual environment humidity and temperature.
3. In the energy-saving machine room air conditioning system, the exhaust channel is provided with the exhaust electric air valve which is controlled by the controller and can adjust the air output, the exhaust electric air valve can control the exhaust air output of indoor air, and the air output can be accurately controlled according to the actual environment humidity and temperature.
4. In the air conditioning system of the energy-saving machine room, the exhaust channel is internally provided with the exhaust fan controlled by the controller, and the exhaust fan works when the exhaust channel is conducted and is used for exhausting indoor air more quickly and adjusting indoor temperature and humidity more quickly.
5. In the energy-saving machine room air conditioning system, the humidifier is arranged in the shell and is connected with the controller, the indoor and/or outdoor humidity detectors connected with the controller are/is arranged, the refrigerating mechanism and an external cold source share one humidifier to adjust the indoor humidity, the humidifier does not need to be arranged respectively, the occupied space is greatly reduced, and meanwhile, the investment cost for introducing a natural cold source is also greatly reduced; and no matter indoor air or outdoor air all goes in and out from the same casing, also be used for doing benefit to the cooperation, it is more accurate to humidity and temperature control.
6. In the energy-saving machine room air conditioning system, the outlet of the humidifier is provided with the humidifying drainage pipe, the free end of the humidifying drainage pipe faces the outdoor air inlet channel, the humidity of the entering outdoor air can be immediately adjusted, and the humidity adjusting effect is good.
7. In the energy-saving machine room air conditioning system, the shell is internally provided with the heater controlled by the controller, the indoor and the outdoor are provided with the temperature detectors connected with the controller, the refrigeration mechanism and an external cold source share one heater to adjust the indoor temperature, the heaters are not required to be respectively arranged, the occupied space is greatly reduced, the investment cost for introducing a natural cold source is also greatly reduced, and no matter indoor air or outdoor air enters or exits from the same shell, the cooperation is facilitated, and the temperature control is more accurate.
8. In the energy-saving machine room air conditioning system, the heater is arranged at one end of the outdoor air inlet channel, which enters the inner cavity, so that the temperature of the entering outdoor air can be immediately regulated, and the temperature regulation effect is good.
9. The energy-saving machine room air conditioning system also comprises an exhaust pipe provided with a plurality of exhaust holes, wherein one end of the exhaust pipe is communicated with the air outlet of the circulating channel arranged at the upper part of the shell, and the other end of the exhaust pipe extends towards the upper part of machine room equipment, namely the exhaust pipe directly faces the upper part of the machine room equipment to exhaust air, so that the cooling effect is better; and cold air flows from top to bottom, and hot air of equipment in the machine room naturally flows upwards, so that the equipment conforms to the natural flow direction of the cold air, the power consumption of an indoor fan is saved, and more energy is saved.
10. The energy-saving machine room air conditioning system also comprises an exhaust pipe provided with a plurality of exhaust holes, wherein one end of the exhaust pipe is communicated with the air outlet of the circulating channel arranged at the upper part of the shell, and the other end of the exhaust pipe extends towards the bottom of the machine room equipment and is communicated with the shell of the machine room equipment, namely, the exhaust pipe directly exhausts air towards the lower part of the machine room equipment, cold air flows from bottom to top, hot air of the machine room equipment is pushed out upwards by the cold air, the machine room equipment is cooled from the interior of the machine room equipment, and the cooling effect is good.
11. In the energy-saving machine room air conditioning system, the part of the outdoor air inlet channel, which is positioned outdoors, is provided with the rain-proof cover, so that rainwater is prevented from entering the outdoor air inlet channel.
12. In the energy-saving machine room air conditioning system, the air inlet mesh enclosure is arranged at the inlet of the rain shield, so that external foreign matters can be prevented from entering.
13. In the energy-saving machine room air conditioning system, at least one stage of filtering device is arranged in the outdoor air inlet channel, so that outdoor air is sufficiently and effectively filtered, and the indoor air quality is ensured.
14. In the air conditioning system of the energy-saving machine room, the filtering device comprises an insect-proof net and a filter which are arranged in the outdoor air inlet channel, and the insect-proof net is closer to one outdoor side.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic diagram of an air conditioning system of an energy-saving machine room according to a first embodiment of the invention;
FIG. 2 is a schematic view of the air flow of an energy saving room air conditioning system with an upwardly extending exhaust duct that introduces an outdoor natural cold source;
FIG. 3 is a schematic view of the indoor air flow of an indoor energy-saving machine room air conditioning system with an upwardly extending exhaust duct without introducing an outdoor natural cold source;
fig. 4 is a schematic view showing the air flow of an air conditioning system of an indoor energy-saving machine room with a downwardly extending exhaust duct for introducing an outdoor natural cold source according to a second embodiment of the present invention;
fig. 5 is a schematic view showing the flow of indoor air in an indoor energy-saving machine room air conditioning system having a downwardly extending exhaust duct without introducing an outdoor natural cooling source.
Description of reference numerals:
0-energy-saving machine room air conditioning system, 1-shell, 11-inner cavity, 12-air inlet, 13-air outlet, 21-indoor, 22-wall, 31-evaporator, 32-compressor, 4-indoor fan, 5-indoor filter, 6-indoor electric air valve, 7-humidifier, 71-humidifying drainage tube, 8-heater, 9-exhaust pipe, 91-exhaust hole, 10-outdoor air inlet channel, 101-outdoor electric air valve, 110-exhaust channel, 111-exhaust electric air valve, 112-exhaust fan, 121-insect-proof net, 130-rain-proof cover, 140-air inlet net cover, 150-filter device and 161-machine room equipment.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
Fig. 1 shows an energy-saving machine room air conditioning system 0 in this embodiment, which includes: the refrigerator comprises a shell 1, a circulating channel, an indoor part of a refrigerating mechanism, an indoor fan 4, an outdoor air inlet channel 10 and a controller, wherein the shell 1 is provided with an inner cavity 11 and a circulating channel for communicating an indoor part 21 with the inner cavity 11, and an air inlet 12 and an air outlet 13 of the circulating channel are arranged on the shell 1; a refrigerating mechanism indoor portion provided in the inner cavity 11; an indoor fan 4 located in the circulation channel and mounted on the housing 1, in this embodiment, the indoor fan 4 is an EC centrifugal fan disposed at the air outlet 13 of the circulation channel, that is, a motor of the centrifugal fan is a three-phase ac permanent magnet synchronous motor; the outdoor air inlet channel 10 is arranged on the shell 1 and is communicated with the outdoor and the inner cavity 11; the controller controls the conduction and the cut-off of the outdoor air inlet channel 10 and the upstream part of the circulating channel connected with the inner cavity 11, wherein when the outdoor air inlet channel 10 is opened, the circulating channel is closed; when the outdoor air inlet channel 10 is closed, the circulating channel is opened. The outdoor temperature and humidity acquisition device is arranged outdoors and is connected with the controller.
Consequently, indoor portion of refrigeration mechanism and outdoor air inlet channel 10 set up in same casing 1, sharing indoor fan 4, reach the integrated design purpose, occupation space reduces greatly, and no matter indoor air or outdoor air all follow same casing 1 business turn over, also be used for doing benefit to in coordination, it is more accurate to humidity and temperature control, and nature cold source and refrigeration mechanism can carry out corresponding selection operation according to the outdoor temperature condition, can move alone, each other does not influence, complement each other again, intelligent control can be realized to the whole system, the reliability of greatly increased system operation. The indoor part of the refrigeration mechanism includes an evaporator 31, a compressor 32, and a gas-liquid separator.
Be provided with on the outdoor air inlet channel 10 and receive the outdoor electronic blast gate 101 of the adjustable intake of controller control, circulation channel be provided with on the air intake 12 and receive the indoor electronic blast gate 6 of the adjustable intake of controller control, consequently, through the intake of the steerable outdoor air of outdoor electronic blast gate 101, the intake of the steerable indoor air of indoor electronic blast gate 6 can carry out accurate control according to actual environment humidity and temperature, be close to in the casing 1 indoor electronic blast gate 6 one side is provided with indoor filter 5, can filter indoor 21's air.
In this embodiment, an exhaust channel 110 is further provided to communicate the indoor 21 and the outdoor, and the exhaust channel 110 and the outdoor air intake channel 10 are opened and closed synchronously. The exhaust channel 110 is provided with an exhaust electric air valve 111 controlled by the controller and capable of adjusting air output, the exhaust electric air valve 111 can control the exhaust air output of indoor air, and accurate control can be performed according to actual environment humidity and temperature. Of course, the exhaust passage 110 may not be additionally provided, and the indoor air may be exhausted by opening the door and window as needed. An exhaust fan 112 controlled by the controller is arranged in the exhaust passage 110, and the exhaust fan 112 works when the exhaust passage 110 is communicated, so that indoor air can be quickly exhausted, and indoor temperature and humidity can be quickly adjusted.
The shell 1 is also internally provided with a humidifier 7, the humidifier 7 is connected with the controller, the indoor 21 and/or the outdoor are/is provided with a humidity detector connected with the controller, the refrigerating mechanism and an external cold source share one humidifier 7 to adjust the indoor humidity, the humidifier 7 is not required to be respectively arranged, the occupied space is greatly reduced, and the investment cost for introducing a natural cold source is also greatly reduced; and no matter indoor air or outdoor air all gets in and out from same casing 1, also be used for doing benefit to the cooperation, it is more accurate to humidity and temperature control.
The outlet of the humidifier 7 is provided with a humidifying drainage pipe 71, the free end of the humidifying drainage pipe 71 faces the outdoor air inlet channel 10, the humidity of the entering outdoor air can be immediately adjusted, and the humidity adjusting effect is good.
The indoor air conditioner is characterized in that a heater 8 controlled by the controller is further arranged in the shell 1, the indoor 21 and the outdoor are provided with temperature detectors connected with the controller, the refrigeration mechanism and an external cold source share one heater 8 to adjust the indoor temperature, the heaters 8 do not need to be arranged respectively, the occupied space is greatly reduced, meanwhile, the input cost for introducing a natural cold source is greatly reduced, no matter indoor air or outdoor air enters and exits from the same shell 1, the cooperation is facilitated, and the temperature control is more accurate.
In this embodiment, the heater 8 is arranged at one end of the indoor air inlet channel 10 entering the inner cavity 11, so that the temperature of the entering indoor air can be immediately adjusted, and the temperature adjusting effect is good.
The air exhaust pipe 9 is provided with a plurality of air exhaust holes 91, one end of the air exhaust pipe 9 is communicated with the air outlet 13 of the circulation channel arranged at the upper part of the shell 1, and the other end of the air exhaust pipe extends towards the upper part of the machine room equipment 161, namely the air exhaust pipe 9 directly faces the upper part of the machine room equipment 161 to exhaust air, so that the cooling effect is better; and the cold air flows from top to bottom, and the hot air of the equipment room 161 naturally flows upwards, which conforms to the natural flow direction of the cold air, saves the power consumption of the indoor fan 4, saves more energy, and in order to be more beneficial to the discharge of air, the exhaust fan 112 can be arranged at a position close to the ground, forming a mode of up-down convection.
The outdoor air intake channel 10 is provided with a rain shield 130 at the outdoor portion to prevent rain water from entering the outdoor air intake channel 10. An air inlet mesh enclosure 140 is disposed at an inlet of the rain shade 130 to prevent foreign objects from entering.
A primary filtering device is arranged in the outdoor air inlet channel 10, so that outdoor air is fully and effectively filtered, and the air quality of the indoor space 21 is ensured.
The energy-saving machine room air conditioning system 0 is convenient to install, simple to maintain and compact in design of a main body part, and a large amount of space inside an electronic information machine room is avoided being occupied.
The outdoor temperature is represented by T, the outdoor relative humidity is represented by phi, Ta represents the dew point temperature of the normal operation of the machine room, Tb represents the temperature of the normal operation of the machine room, phi a represents the lower limit of the humidity of the normal operation of the machine room, and phi b represents the upper limit of the humidity of the normal operation of the machine room.
When the temperature and humidity control device is used, as the temperature and humidity in the machine room are kept in a relatively constant range, obvious and relatively large fluctuation can not occur, so that the values of Ta, Tb, φ a and φ b can be basically determined for a specific communication machine room, and the specific introduction conditions of the outdoor temperature and humidity are determined by taking the values as the reference.
Fig. 2 and fig. 3 are schematic diagrams showing air flow of an energy-saving machine room air conditioning system, where an operation mode of the energy-saving system is affected by temperature and humidity of an outdoor environment, and the temperature and humidity of the outdoor environment determine whether a natural cold source is introduced or not.
(I) the condition that fresh air and return air are not mixed:
if the outdoor temperature Ta is less than T and less than or equal to Tb and the relative humidity phi a is less than or equal to phi b, the outdoor temperature and humidity sensor transmits the signal, and a natural cold source is introduced into the energy-saving system. At the moment, the system opens the outdoor electric air valve 101, the exhaust electric air valve 111 and the exhaust fan 112, closes the indoor electric air valve 6, and directly introduces a natural cold source to provide cold for the indoor environment of the air conditioner of the machine room.
Secondly, if the outdoor temperature Ta is more than or equal to T and less than or equal to Tb and the relative humidity phi is less than phi a, the system introduces a natural cold source, and at the moment, the system opens the outdoor electric air valve 101, the exhaust electric air valve 111 and the exhaust fan 112 and closes the indoor electric air valve 6. At this time, the humidity of the outdoor natural cold source is less than phia, so that the humidifier 7 is turned on to increase the humidity of the introduced outdoor cold source, and the temperature and humidity of the air supply of the system meet the requirements of the equipment 161 in the machine room.
(II) the condition that fresh air and return air need to be mixed:
the opening degrees of the outdoor electric air valve 101, the exhaust electric air valve 111 and the indoor electric air valve 6 can be adjusted by the control system, so that the return air quantity and the introduced fresh air quantity of the system can be controlled, namely, the air mixing ratio is adjusted. When the electric air valve is fully opened, the air quantity passing through the air valve in unit time reaches the maximum value; when the electric air valve is in a certain specific opening degree, the opening degree of the electric air valve is smaller and smaller until the electric air valve is closed along with the gradual rotation of the positions of the fan blades to the vertical state. The system can sense the air supply temperature and humidity through the indoor temperature and humidity acquisition device and the outdoor temperature and humidity acquisition device. If the air supply temperature is lower than Ta, the opening degree of the electric air valve 101 outside the small chamber can be adjusted, the opening degree of the electric air valve 6 inside the small chamber is increased, and the proportion of the introduced fresh air volume to the total mixed air is reduced until the air supply temperature is slightly higher than Ta; if the air supply temperature exceeds Tb, the opening degree of the outdoor electric air valve 101 is increased and the opening degree of the indoor electric air valve 6 is decreased, so that the ratio of the introduced fresh air volume to the total mixed air is increased and the air supply temperature is decreased. In a word, the proportion of fresh air and return air in the mixed air is proper through the adjustment of the electric air valve, so that the air supply temperature of the system meets the requirement.
If the outdoor temperature T is less than or equal to Ta and the relative humidity phi a is less than or equal to phi b, the system introduces a natural cold source, the system opens the outdoor electric air valve 101, the indoor electric air valve 6, the exhaust fan 112 and the exhaust electric air valve 111, and because the temperature of the outdoor natural cold source is lower than Ta at the moment, the introduced outdoor cold air and return air with higher indoor temperature are mixed to prevent condensation below the dew point temperature of indoor air, and the air mixing ratio is properly adjusted by controlling the opening degree of the electric air valves, so that the air supply temperature of the system is slightly higher than Ta;
if the outdoor temperature T is less than or equal to Ta and the relative humidity phi is less than phi a, the system introduces a natural cold source. At this time, the temperature of the outdoor natural cold source is lower than Ta, the system needs to open the outdoor electric air valve 101, the indoor electric air valve 6, the exhaust fan 112 and the exhaust electric air valve 111 to mix the indoor return air and the outdoor cold air, the air mixing ratio is properly adjusted by controlling the opening degree of the electric air valves, and the relative humidity of the outdoor cold air is lower than phia, so that the humidifier 7 needs to be opened to enable the introduced natural cold source to meet the requirements of the equipment room 161.
(III) other cases:
if the temperature and humidity conditions of the outdoor natural cold source are not in the range from the first to the fourth, the system does not introduce the natural cold source at the moment, the indoor electric air valve 6, the exhaust fan 112 and the exhaust electric air valve 111 are closed, the outdoor electric air valve 101 and the compressor 32 are opened, and the indoor refrigeration mechanism provides cold energy, so that the electric heater 8 and the humidifier 7 of the energy-saving machine room air conditioning system 0 are timely opened according to the temperature and humidity conditions of the indoor 21.
The control method divides the temperature and humidity introduction range of an outdoor natural cold source, introduces the natural cold source in time, and simultaneously achieves temperature and humidity regulation of a machine room environment through combined operation of all parts.
Example 2
In this embodiment, on the basis of the above embodiment 1, the arrangement of the exhaust duct 9 is replaced by that one end of the exhaust duct 9 is communicated with the air outlet 13 of the circulation channel arranged at the upper part of the housing 1, and the other end of the exhaust duct extends to the bottom of the machine room equipment 161 and is communicated with the housing of the machine room equipment 161, that is, the exhaust hole 91 of the exhaust duct 9 directly exhausts air to the lower part of the machine room equipment 161, the cold air flows from bottom to top, the hot air of the machine room equipment 161 is pushed out upwards by the cold air, and is cooled from the inside of the machine room equipment 161, so that the cooling effect is good, as shown in fig. 4 and 5, in order to facilitate the exhaust of air, the exhaust fan 112 may be arranged at a position close to the ceiling, and form a vertical convection mode.
In this embodiment, the outdoor air inlet channel 10 is replaced by a second-stage filter device, so that the outdoor air is sufficiently and effectively filtered, and the air quality of the indoor space 21 is ensured. The filter unit 150 includes a fly net 121 and a filter disposed in the outdoor air intake duct 10, and the fly net 121 is closer to an outdoor side.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (15)
1. An energy-saving machine room air conditioning system comprising:
the air conditioner comprises a shell (1) and a fan, wherein the shell (1) is provided with an inner cavity (11) and a circulating channel for communicating an indoor space (21) with the inner cavity (11), and an air inlet (12) and an air outlet (13) of the circulating channel are arranged on the shell (1);
a refrigerating mechanism indoor part arranged in the inner cavity (11);
the indoor fan (4) is positioned on the circulating channel and is arranged on the shell (1);
it is characterized by also comprising
The outdoor air inlet channel (10) is arranged on the shell (1) and is communicated with the outdoor and the inner cavity (11); and
the controller controls the conduction and the cut-off of the outdoor air inlet channel (10) and the upstream part of the circulating channel connected with the inner cavity (11), wherein when the outdoor air inlet channel (10) is opened, the circulating channel is closed; when the outdoor air inlet channel (10) is closed, the circulating channel is opened;
the air conditioner further comprises an exhaust pipe (9) provided with a plurality of exhaust holes (91), one end of the exhaust pipe (9) is communicated with the air outlet (13) of the circulating channel arranged at the upper part of the shell (1), and the other end of the exhaust pipe extends towards the upper part of the machine room equipment (161);
still be provided with humidifier (7) in casing (1), the export of humidifier (7) is provided with humidification drainage tube (71), the free end of humidification drainage tube (71) is towards outdoor air inlet channel (10).
2. The air conditioning system of the energy-saving machine room as claimed in claim 1, wherein the outdoor air intake duct (10) is provided with an outdoor electric air valve (101) with adjustable intake controlled by the controller, and the air intake (12) of the circulation duct is provided with an indoor electric air valve (6) with adjustable intake controlled by the controller.
3. The air conditioning system of the energy-saving machine room as claimed in claim 1 or 2, further comprising an exhaust channel (110) for communicating the indoor space (21) with the outdoor space, wherein the exhaust channel (110) and the outdoor air intake channel (10) are opened and closed synchronously.
4. The air conditioning system of the energy-saving machine room as claimed in claim 3, wherein the exhaust channel (110) is provided with an exhaust electric air valve (111) which is controlled by the controller and can adjust the air output.
5. The energy-saving air conditioning system for machine room of claim 3, wherein an exhaust fan (112) controlled by the controller is arranged in the exhaust passage (110), and the exhaust fan (112) works when the exhaust passage (110) is communicated.
6. Energy-saving air conditioning system for a machine room according to claim 1 or 2, characterized in that the humidifier (7) is connected to the controller, and the room (21) and/or the room is provided with a moisture detector connected to the controller.
7. Energy-saving machine room air conditioning system according to claim 1 or 2, characterized in that a heater (8) controlled by the controller is arranged in the casing (1), and a temperature detector connected with the controller is arranged in the indoor space (21) and/or the outdoor space.
8. The air conditioning system of energy-saving machine room as claimed in claim 7, wherein the heater (8) is arranged at one end of the outdoor air intake channel (10) entering the inner cavity (11).
9. Energy-saving machine room air conditioning system according to claim 1 or 2, characterized in that the indoor fan (4) is an EC centrifugal fan arranged at the air outlet (13) of the circulation channel.
10. The energy-saving machine room air conditioning system of claim 1 or 2, further comprising an exhaust duct (9) provided with a plurality of exhaust holes (91), wherein one end of the exhaust duct (9) is communicated with the air outlet (13) of the circulation channel arranged at the upper part of the shell (1), and the other end of the exhaust duct extends towards the bottom of the machine room equipment (161) and is communicated with the shell of the machine room equipment (161).
11. Energy-saving air conditioning system for machine room according to claim 1 or 2, characterized in that the part of the outdoor air intake channel (10) located outdoors is provided with a rain-proof cover (130).
12. The energy-saving air conditioning system of the machine room of claim 11, wherein an air intake screen (140) is arranged at the inlet of the rain shield (130).
13. The energy-saving air conditioning system of the machine room as claimed in claim 1 or 2, wherein at least one stage of filtering device is arranged in the outdoor air intake channel (10).
14. The air conditioning system of energy-saving machine room as claimed in claim 13, wherein the filter unit 150 comprises a fly net (121) and a filter arranged in the outdoor air intake duct (10), and the fly net (121) is closer to the outdoor side.
15. The energy-saving machine room air conditioning system according to claim 1 or 2, further comprising an indoor temperature and humidity acquisition device and an outdoor temperature and humidity acquisition device, wherein the indoor temperature and humidity acquisition device and the outdoor temperature and humidity acquisition device are connected to the controller.
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| CN110469915A (en) * | 2019-07-09 | 2019-11-19 | 重庆基准方中建筑设计有限公司 | One kind being applied to the intracorporal air-conditioning system of high-rise curtain buildings |
| CN112797488A (en) * | 2019-11-14 | 2021-05-14 | 北京百度网讯科技有限公司 | Cooling system and cooling system control method |
| CN111256354A (en) * | 2020-01-19 | 2020-06-09 | 杭州瑞德设计股份有限公司 | Novel ventilation system for kitchen |
| CN111829064A (en) * | 2020-07-15 | 2020-10-27 | 陕西三海机电工程有限公司 | Energy-saving machine room air conditioner |
| CN113301771B (en) * | 2021-04-07 | 2024-04-09 | 华为数字能源技术有限公司 | Multi-temperature control cabinet and scheduling method thereof |
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