CN112097350A - Evaporative machine room air energy saving method and device - Google Patents
Evaporative machine room air energy saving method and device Download PDFInfo
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- CN112097350A CN112097350A CN201910526709.8A CN201910526709A CN112097350A CN 112097350 A CN112097350 A CN 112097350A CN 201910526709 A CN201910526709 A CN 201910526709A CN 112097350 A CN112097350 A CN 112097350A
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- air
- circulation fan
- air conditioner
- machine room
- evaporative
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- 238000000034 method Methods 0.000 title description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000009423 ventilation Methods 0.000 claims abstract description 5
- 238000005192 partition Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 5
- 239000003570 air Substances 0.000 description 98
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
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
- 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
- F24F5/0035—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 evaporation
-
- 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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- 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
- F24F11/85—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 using variable-flow pumps
-
- 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
- F24F13/02—Ducting arrangements
-
- 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
- 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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
Landscapes
- 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 provides an evaporative machine room air energy-saving device which is mainly characterized in that an outdoor temperature sensor and an indoor temperature sensor are respectively connected with an automatic controller through leads, the automatic controller is respectively connected with a frequency modulator, an internal circulation fan, data output display equipment, an external circulation fan and a water pump through leads to form an automatic control system, and the automatic control system controls an internal circulation air circulation system, the water pump and an external circulation air circulation system; the air outlet, the internal circulation fan, the evaporative heat exchanger and the air inlet are sequentially connected by using 3 sections or N sections of ventilation pipelines to form an indoor air circulation system. Each 1 kilowatt hour of electricity is saved, 1.5 liters of water is consumed, and the electricity saving is reasonable in economic aspect.
Description
Technical Field
The invention relates to a machine room temperature control system, in particular to an evaporative machine room air energy saving method and device.
Background
The invention discloses a low-noise machine room air energy saving device which is invented by the inventor, wherein the air inside and outside a machine room is isolated, indoor hot air is sent to an outdoor heat exchanger through a pipeline by a fan, and cooled air is sent back to the indoor through a pipeline, namely, the temperature of the indoor hot air is reduced by using the energy of outdoor cold air, so that the purpose of saving the power consumption of an air conditioner is achieved.
When the outdoor temperature reaches above 26 ℃, the energy-saving device cannot work, only can work independently by the original air conditioner, and enters a conventional energy consumption state, and the power consumption of the air conditioner accounts for 40-45% of the total power consumption of a machine room.
When the outdoor temperature reaches above 36 ℃, the efficiency of the air conditioner is reduced, the load is too heavy, and the air conditioner is difficult to work.
Disclosure of Invention
The invention aims to provide an evaporative machine room air energy-saving method and device aiming at the defects in the technology, which can be suitable for higher outdoor air temperature, and the invention utilizes the principle of water evaporation heat absorption to reduce the temperature of a heat exchanger to t-delta t, wherein delta t is about equal to 10-15 ℃, and the maximum use temperature can reach 36 ℃. When the outdoor temperature reaches 36 ℃, the evaporative heat exchanger stops the internal circulation, the external circulation continues to work, and the air conditioner outdoor unit is directly blown with cold air, so that the method for assisting the air conditioner can enable the air conditioner to work at 26 ℃ and work more easily. When the outdoor temperature is below 30 ℃, the air conditioner stops working and is in a high-efficiency energy-saving mode, and 70% of electric energy can be saved.
The purpose of the invention is realized by comprising an outdoor temperature sensor, an indoor temperature sensor,
The automatic control system is characterized in that an outdoor temperature sensor and an indoor temperature sensor are respectively connected with the automatic controller through leads, the automatic controller is respectively connected with a frequency modulator, an internal circulation fan, a data output display device, the external circulation fan and a water pump through leads to form an automatic control system, and the automatic control system controls an internal circulation air circulation system, the water pump and an external circulation air circulation system. The air outlet, the internal circulation fan, the evaporative heat exchanger and the air inlet are sequentially connected by using 3 sections or N sections of ventilation pipelines to form an indoor air circulation system, and indoor hot air is cooled by performing heat exchange circulation. The filter screen, the wet curtain, the evaporative heat exchanger and the external circulating fan form an outdoor air circulation system, so that the outdoor air cools the indoor air in the evaporative heat exchanger. The air conditioner and the electronic equipment cabinet are arranged in the machine room, the air outlet is arranged above the air outlet of the electronic equipment cabinet, a partition is arranged beside the air outlet to gather hot air around the air outlet, the air outlet is connected with the internal circulation fan through a pipeline, the internal circulation fan conveys indoor hot air to the heat exchanger through a pipeline for cooling, the heat exchanger is connected with the air inlet through a pipeline, and the cooled air is sent back to the indoor space. The air conditioner system of the machine room is independent, the automatic control system is not connected with the air conditioner at all, and the work of the air conditioner is not influenced. The air in the machine room is isolated from the air outside, and no gas exchange occurs, so that the problem of air dust removal does not need to be considered. The outdoor temperature sensor and the indoor temperature sensor respectively transmit signals to the automatic controller through leads, and the automatic controller controls the frequency modulator, the internal circulation fan, the water pump and the external circulation fan through the leads and outputs data for display. When the outdoor temperature rises to 20 ℃, the internal circulation fan and the external circulation fan work simultaneously, the temperature in the machine room is maintained below 24 ℃, the air conditioner is not started, and the air conditioner belongs to a high-efficiency energy-saving mode. When the outdoor temperature continues to rise, the indoor temperature also rises along with the rise, when the indoor temperature reaches 24 ℃, the water pump is started to work, the evaporative heat exchanger starts to play a role, the indoor temperature drops below 24 ℃, and the air conditioner is not started yet and belongs to an efficient energy-saving mode. When the outdoor temperature rises to 33 ℃, the indoor temperature rises to 25 ℃, the air conditioner starts to work, and the internal circulation fan and the external circulation fan work simultaneously, which belongs to an energy-saving mode. When the outdoor temperature rises to 36 ℃, the internal circulation fan stops working, the water pump and the external circulation fan continue to operate, the external circulation cool air directly blows to the outdoor unit of the air conditioner, the air conditioner is assisted to work, and the air conditioner enters a conventional working mode. In actual use, the use effect should be prevented from being influenced by the insolation of sunlight.
The invention has the beneficial effects that: when the outdoor temperature is below 20 ℃, the temperature of the indoor hot air is reduced by using the energy of the outdoor cold air, only the fan works at the moment, and the air conditioner does not work, thus the air conditioner belongs to a high-efficiency energy-saving mode. When the outdoor temperature is 20-30 ℃, the evaporative heat exchanger plays a role, 2 fans and water pumps work simultaneously, and the air conditioner does not work, so that the air conditioner also belongs to a high-efficiency energy-saving mode. When the outdoor temperature is 30-33 ℃, the fan, the water pump and the air conditioner work simultaneously, and the energy-saving mode work belongs to. When the outdoor temperature is above 36 ℃, the internal circulation fan stops working, and the water pump and the external circulation fan assist the air conditioner to work, belonging to the conventional mode. Before entering the conventional mode, the power consumption of the internal circulating fan, the water pump and the external circulating fan is only 30% of that of the air conditioner, so that the energy is saved at the moment, and the electricity can be saved by more than 70%. . After the machine room enters the conventional mode, the evaporative heat exchanger assists the air conditioner to cool, so that the high-temperature resistance is improved, the burden of the air conditioner is relieved, and the cooling of the machine room is beneficial. Each 1 kilowatt hour of electricity is saved, 1.5 liters of water is consumed, and the electricity saving is reasonable in economic aspect.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure of an evaporative heat exchanger according to the present invention.
Fig. 3 is a cross-sectional view of fig. 2A-a.
In the figure, 1, an air conditioner, 2, an indoor temperature sensor, 3, an air inlet, 4, an automatic controller, 5, electronic equipment, 6, a machine room, 7, an air outlet, 8, an internal circulation fan, 9, a partition, 10, an evaporative heat exchanger, 11, an external circulation fan, 12, an air conditioner outdoor unit, 13, a water pump, 14, a pipeline, 15, an outdoor temperature sensor, 16, a heat exchange plate, 17, a water distributor, 18, a filter screen, 19, a wet curtain, 20, a water inlet, 21, a water tank, 22, a water outlet, 23, an external circulation channel, 24, an internal circulation channel and 25 are provided with a water feeding pipe.
Detailed Description
As can be seen from fig. 1, the room of the machine room 6 is sealed and isolated from the outside, the air sent by the air conditioner 1 is 15 ℃, the temperature when the air reaches the electronic equipment cabinet 5 is 21 ℃ after being mixed with the ambient air, the temperature rises by 11 ℃ after passing through the electronic equipment cabinet 5, the hot air with higher temperature is blocked by the partition 9, enters the air outlet 7, is sent to the outdoor evaporative heat exchanger 10 by the fan 8 through the ventilation pipeline, and then is sent back to the room through the ventilation pipeline 14 and the air inlet 3, the air temperature reaching the air inlet of the air conditioner 1 is below 24 ℃, the signal sent back by the outdoor temperature sensor 15 is the air temperature of 20 ℃, the air conditioner 1 is not started, only 2 fans are provided, and the fan 8 and the fan 11 work in an efficient energy-saving mode, and can save more than 70% of energy. When the outdoor temperature is between 20 and 30 ℃, the indoor temperature is gradually increased to 24 ℃, the automatic controller 4 receives a signal of the indoor temperature sensor 2, the water pump 13 is controlled to be started, the evaporative heat exchanger 10 plays a role, the air sent out by the air outlet 3 is lower than 24 ℃, the air conditioner 1 is still not started, and the air conditioner still belongs to the high-efficiency energy-saving mode to work at the moment. When the outdoor temperature is 30-33 ℃, the indoor temperature is gradually increased to 25 ℃, the air conditioner 1 starts to work, the indoor temperature fluctuates between 20-25 ℃, and the air conditioner 1 stops when being started, belonging to the energy-saving mode. When the outdoor temperature rises to 36 ℃, the indoor circulating fan 8 stops working, the outdoor circulating fan 11 and the water pump 13 continue working, the evaporative heat exchanger 10 continues to play a role, and the air conditioner outdoor unit 12 is directly blown with cool air to assist the air conditioner.
As shown in fig. 2-3, the water tank 21 has a water outlet 22 at the bottom, a water inlet 20 at the top, a floating ball water inlet valve for water inlet, a water pump 13 in the water tank 21 for delivering water to the water distributor 17 at the top through a water supply pipe 25, and the water distributor 17 for spraying water and supplying water to the wet curtain 19. The rectangular corrugated metal heat exchanger plates 16 constitute an outer circulation channel 23 and inner circulation channels 24 vertically spaced therefrom. When the external circulation fan 11 works, external air enters through the filter screen 18 and the wet curtain 19, water is evaporated, the heat exchanger cools down, and the external air is discharged through the external circulation channel 23. The internal circulation passage 24 allows internal circulation air to pass therethrough, and exchanges heat therebetween to cool the interior of the machine room.
The evaporative heat exchanger is an integral body and mainly comprises a water evaporation part and a heat exchanger. The lower part of the water evaporation part is provided with a water tank, a water pump is arranged in the water tank, the water pump sends water into the water distributor above the water tank through an upper water pipe, the water is sprayed down and returns to the water tank through a wet curtain, a filter screen is arranged outside the wet curtain to play a role in protection, a floating ball water inlet valve can be arranged at the water inlet of the water tank to automatically control the water level, a water outlet is arranged at the lower part of the water tank, and the water is discharged completely before being frozen. The heat exchanger is mainly made of metal plates, corrugated plates and flat plates are alternately overlapped to form two mutually isolated and mutually vertical air channels, one is an internal circulation channel and consists of an air outlet and an internal circulation fan, the heat exchanger and an air inlet are sequentially connected by a pipeline, the other is an external circulation channel and consists of a filter screen, a wet curtain, the heat exchanger and an external circulation fan sequentially, and the corrugated plates and the flat plates are alternately overlapped and then are clamped by an outer plate and a bolt and sealed by rubber and sealant. The water evaporation part and the heat exchanger can be vertically arranged up and down or transversely arranged. The invention mainly comprises two parts, wherein the indoor part comprises an indoor temperature sensor, an air outlet, an automatic controller, an air inlet and a partition, and the outdoor part comprises an indoor circulating fan, a pipeline, an evaporative heat exchanger and an outdoor temperature sensor. When necessary, the outdoor part of the invention can be arranged indoors, and the outer circulating system is provided with an air inlet and an air outlet on the wall, but still can save a large amount of electric energy.
Claims (5)
1. An evaporative machine room air energy saving device comprises an outdoor temperature sensor, an indoor temperature sensor, an automatic controller, an air outlet, a pipeline, an internal circulation fan, an evaporative heat exchanger, an external circulation fan, an air inlet and a partition, and is characterized in that the outdoor temperature sensor and the indoor temperature sensor are respectively connected with the automatic controller through leads, the automatic controller is respectively connected with a frequency modulator, the internal circulation fan, data output display equipment, the external circulation fan and a water pump through leads to form an automatic control system, and the automatic control system controls an internal circulation air circulation system, the water pump and an external circulation air circulation system; the air outlet, the internal circulation fan, the evaporative heat exchanger and the air inlet are sequentially connected by using 3 sections or N sections of ventilation pipelines to form an indoor air circulation system, and indoor hot air is cooled by performing heat exchange circulation; the filter screen, the wet curtain, the evaporative heat exchanger and the external circulating fan form an outdoor air circulation system, so that the outdoor air cools the indoor air in the evaporative heat exchanger.
2. The evaporative air energy saving device for the machine room as claimed in claim 1, wherein an air conditioner and an electronic equipment cabinet are installed in the machine room, an air outlet is installed above an air outlet of the electronic equipment cabinet, a partition is arranged beside the air outlet to gather hot air around the air outlet, the air outlet is connected with an internal circulation fan through a pipeline, the internal circulation fan conveys indoor hotter air to a heat exchanger through a pipeline for cooling, and the heat exchanger is connected with an air inlet through a pipeline to send the cooled air back to the room.
3. The evaporative air energy saving device for machine room as claimed in claim 1, wherein the air conditioner system of machine room is independent, the automatic control system is not connected with the air conditioner, the operation of the air conditioner is not affected, the air in the machine room is isolated from the air outside, no gas exchange occurs, and therefore the air dust removal problem is not considered.
4. The evaporative machine room air energy saving device as claimed in claim 1, wherein the outdoor temperature sensor and the indoor temperature sensor respectively transmit signals to the automatic controller through wires, and the automatic controller controls the frequency modulator, the internal circulation fan, the water pump and the external circulation fan through wires and outputs data for display; when the outdoor temperature rises to 20 ℃, the internal circulation fan and the external circulation fan work simultaneously, the temperature in the machine room is maintained below 24 ℃, the air conditioner is not started, and the air conditioner belongs to a high-efficiency energy-saving mode; when the outdoor temperature continues to rise, the indoor temperature also rises along with the rise, and when the indoor temperature reaches 24 ℃, the water pump is started to work, the evaporative heat exchanger starts to play a role, the indoor temperature drops below 24 ℃, and the air conditioner is not started yet and belongs to a high-efficiency energy-saving mode; when the outdoor temperature rises to 33 ℃, the indoor temperature rises to 25 ℃, the air conditioner starts to work, and the internal circulation fan and the external circulation fan work simultaneously, which belongs to an energy-saving mode.
5. When the outdoor temperature rises to 36 ℃, the internal circulation fan stops working, the water pump and the external circulation fan continue to operate, the external circulation cool air directly blows to an outdoor unit of the air conditioner, the air conditioner is assisted to work, and the air conditioner enters a conventional working mode; in actual use, the use effect should be prevented from being influenced by the insolation of sunlight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910526709.8A CN112097350B (en) | 2019-06-18 | 2019-06-18 | Control method of evaporative machine room air energy-saving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910526709.8A CN112097350B (en) | 2019-06-18 | 2019-06-18 | Control method of evaporative machine room air energy-saving device |
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| Publication Number | Publication Date |
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| CN112097350A true CN112097350A (en) | 2020-12-18 |
| CN112097350B CN112097350B (en) | 2024-02-27 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10238925A (en) * | 1997-02-20 | 1998-09-11 | Daewoo Electron Co Ltd | Refrigerator with cold gas discharging function from door using air curtain generator |
| CA2274187A1 (en) * | 1998-06-12 | 1999-12-12 | Ramon M. Navarro | Air curtain for open-fronted, refrigerated showcase |
| CN101915441A (en) * | 2010-07-30 | 2010-12-15 | 田忠仁 | Pro-environment central air-conditioner air handling unit with humidification function |
| CN102278799A (en) * | 2011-08-12 | 2011-12-14 | 福州普泽冷暖设备技术有限公司 | Air conditioner with water-evaporation-type cooling fan linked function and control method thereof |
| CN105737298A (en) * | 2014-12-11 | 2016-07-06 | 深圳易信科技股份有限公司 | Energy-saving cooling system for computer room |
| CN108966606A (en) * | 2018-09-03 | 2018-12-07 | 沈阳宁声风机有限责任公司 | Low noise computer room air energy energy saver |
| CN210425367U (en) * | 2019-06-18 | 2020-04-28 | 沈阳宁声风机有限责任公司 | Evaporative machine room air energy saving device |
-
2019
- 2019-06-18 CN CN201910526709.8A patent/CN112097350B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10238925A (en) * | 1997-02-20 | 1998-09-11 | Daewoo Electron Co Ltd | Refrigerator with cold gas discharging function from door using air curtain generator |
| CA2274187A1 (en) * | 1998-06-12 | 1999-12-12 | Ramon M. Navarro | Air curtain for open-fronted, refrigerated showcase |
| CN101915441A (en) * | 2010-07-30 | 2010-12-15 | 田忠仁 | Pro-environment central air-conditioner air handling unit with humidification function |
| CN102278799A (en) * | 2011-08-12 | 2011-12-14 | 福州普泽冷暖设备技术有限公司 | Air conditioner with water-evaporation-type cooling fan linked function and control method thereof |
| CN105737298A (en) * | 2014-12-11 | 2016-07-06 | 深圳易信科技股份有限公司 | Energy-saving cooling system for computer room |
| CN108966606A (en) * | 2018-09-03 | 2018-12-07 | 沈阳宁声风机有限责任公司 | Low noise computer room air energy energy saver |
| CN210425367U (en) * | 2019-06-18 | 2020-04-28 | 沈阳宁声风机有限责任公司 | Evaporative machine room air energy saving device |
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| CN112097350B (en) | 2024-02-27 |
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