CN110094825A - A kind of secondary return air system with energy-conserving action - Google Patents
A kind of secondary return air system with energy-conserving action Download PDFInfo
- Publication number
- CN110094825A CN110094825A CN201910465590.8A CN201910465590A CN110094825A CN 110094825 A CN110094825 A CN 110094825A CN 201910465590 A CN201910465590 A CN 201910465590A CN 110094825 A CN110094825 A CN 110094825A
- Authority
- CN
- China
- Prior art keywords
- air
- blower
- return air
- energy
- pressure fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004378 air conditioning Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 6
- 238000007791 dehumidification Methods 0.000 abstract description 5
- 238000007664 blowing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- 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
- F24F13/02—Ducting arrangements
- F24F13/04—Air-mixing units
-
- 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
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Central Air Conditioning (AREA)
Abstract
The present invention provides a kind of secondary return air system with energy-conserving action, the return air drawn from air-conditioned room, a part enters blower after mixing by primary retirn air pipe with fresh air, another part enters blower by secondary returning air hose, after the return air that blower is sent out is mixed with the return air that blower is sent out, air conditioning area is entered.Primary filter is arranged in the front air inlet of blower.Pressure fan is separately provided in secondary return air of the present invention, so that becoming smaller by the air quantity of air-treatment unit, effectively reduces the energy consumption, unit cost and size of air-treatment unit blower；Two pressure fan, total pressure is different, but air quantity is total air output；Return air is mixed with fresh air, carries out cooling and dehumidification processing, and the pressure fan air-supply that independent one total pressure is larger, air quantity is small, the independent typhoon of another part return air presses lesser pressure fan, and the part pressure fan total pressure is smaller therefore and energy saving.
Description
Technical field
The invention belongs to air-conditioning technique fields, and in particular to a kind of air return system of full air-treatment unit.
Background technique
Air-conditioning summer air-treatment is usually common surface air cooler, 7/12 DEG C of cold water temperature, is subtracted by surface air cooler air cooling-down
Wet, 8 ~ 15 DEG C of air cooling-down, air-out relative humidity humidity 90 ~ 95% can satisfy wanting for general comfort air conditioning system top air-supply
It asks.
3 DEG C are not more than for the temperature difference on floor, seat air supply mode workspace head to foot, the air-supply of floor air supply register
Temperature is preferably 17 ~ 18 DEG C, and the supply air temperature of air outlet is about 19 DEG C under seat, by reducing cold source water or improving cold source temperature
Degree, and dehumidifying cannot be reached, it need to be mixed using a part of not return air of cooling and dehumidification with surface air cooler processing air-supply, be formed and be suitble to
The air of floor blowing and seat air supply is secondary return air supply air system.
Existing secondary return air system is that a part of return air is mixed with fresh air, carry out cooling and dehumidification processing, then with another portion
Divide return air mixing, You Yitai pressure fan is sent into air conditioning area.The air-supply fan delivery is big, and pressure head is high, and energy consumption is high, and secondary return air need to be set
It sets air-valve and adjusts air quantity, air-valve consumes the energy consumption of a part of blower.
Summary of the invention
The present invention provides a kind of secondary return air system with power saving function, of the existing technology to solve the problems, such as.
The invention adopts the following technical scheme:
A kind of secondary return air system with energy-conserving action, the return air drawn from air-conditioned room, a part pass through primary retirn air pipe
Enter blower after mixing with fresh air, another part enters blower by secondary returning air hose, and the return air and blower that blower is sent out are sent out
Return air mixing after, enter air conditioning area.
Primary filter is arranged in the front air inlet of the blower.
The primary retirn air pipe and fresh air successively pass through primary retirn air mixing section, primary filter, medium effeciency filter, table
Cold/heating dish pipeline section enters blower.
The total pressure of the blower is greater than the total pressure of blower.
The blower is frequency controlling fan.
Beneficial effects of the present invention:
(1) pressure fan is separately provided in secondary return air, so that becoming smaller by the air quantity of air-treatment unit, effectively reduces at air
Manage energy consumption, unit cost and the size of unit blower；
(2) two pressure fan, total pressure is different, but air quantity is total air output；Return air is mixed with fresh air, carries out cooling and dehumidification processing,
The pressure fan air-supply that independent one total pressure is larger, air quantity is small, the independent typhoon of another part return air press lesser pressure fan, the portion
It is smaller therefore and energy saving to send blower press.
Detailed description of the invention
Fig. 1 is the work flow diagram of existing secondary return air system.
Fig. 2 is the work flow diagram of secondary return air system of the invention.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and detailed description.
The present invention provides a kind of secondary return air system with energy-conserving action, which uses two Fans, and two
The total pressure of blower is different, but air output is total blast volume, can reduce the energy consumption of air-treatment unit blower, unit cost and whole
Body size.
As shown in Fig. 2, the return air drawn from air-conditioned room is divided into two parts in the present invention, a portion passes through primary
The part return air is mixed with fresh air, is sent in blower 6 by backwind tube, and another part return air is entered by secondary returning air hose
Into blower 7, after being mixed by the return air of blower 7 with the mixing wind that blower 6 is sent out, it is sent into air conditioning area and blows, example
It such as enters floor lower part or seat lower part and carries out floor blowing or seat air supply.
Blower 7 may be provided in cabinet, and cabinet is connect with secondary return air pipeline, and box house setting is returned into cabinet
The primary filter 21 that wind is filtered is sent to blower 7 by 21 return air of primary filter, and then will meet api request
Return air is sent to air conditioning area.
And the equally settable cabinet in primary retirn air pipe rear portion, the cabinet have air inlet and air outlet, air inlet setting
Primary retirn air mixing section 1, for being mixed by fresh air and by the primary retirn air that primary retirn air pipe enters this section, primary retirn air
The box house at 1 rear portion of mixing section can set gradually primary filter 21, medium effeciency filter 3, table it is cold/heating dish pipeline section 5, blower
6, the wind of blower 6 is entered in the air hose of front end by air outlet, and secondary mix being sent into blower 7 is sent to air conditioning area.
Certainly, above-mentioned each section, such as primary retirn air mixing section 1, primary filter 21, medium effeciency filter 3, table cold dish/heating
Coil section 5, blower 6 can also be separately provided, and connected between each other by pipeline, can also realize effect of the invention.
Above-mentioned table is cold/and heating dish pipeline section 5 indicates Surface cooling coil section or heating dish pipeline section, it is different according to demand, it can make
Different pipeline section work.
Two Fans of the invention, the total pressure of blower 6 are greater than the total pressure of blower 7.Total pressure is different, but air quantity is total air-supply
Amount；A part of return air is mixed with fresh air, carries out cooling and dehumidification processing, and independent typhoon amount is smaller herein, the biggish air-supply of total pressure
Machine 6；Another part return air individually sets a typhoon and presses lesser pressure fan 7, and two pressure fan air-supplies are mixed to form that the temperature difference is smaller, phase
To the lower air-supply of humidity, adapts to floor blowing, seat air supply etc. and require the air-supply requirement that air output is big, supply air temperature difference is small.With
Traditional secondary air return system compares the reduction of unit blasting air fan delivery, and energy consumption reduces.
Pressure fan 7 is separately provided in secondary return air, so that becoming smaller by the air quantity of air-treatment unit, effectively reduces air
Handle energy consumption, unit cost and the size of unit blower.And the secondary return air pressure fan total pressure set up is low, energy consumption is far below sky
Gas disposal unit can play energy-efficient effect.
The pressure fan 7 that secondary return air is separately provided adjusts air quantity using frequency control, adjusts secondary returning air quantity conveniently and saves
Energy.
In the present invention, if secondary return air is calculated by 50%, wind pressure 400Pa, the wind resistances such as surface air cooler press 300Pa, pressure fan
Wind pressure 700Pa meter, fractional energy savings (700-400)/700*50%=21.43%.If secondary return air is calculated by 50%, wind pressure 400Pa, table is cold
The wind resistances such as device press 300Pa, pressure fan wind pressure 700Pa meter, fractional energy savings (700-400)/700*50%=21.43%.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those skilled in the art,
Without depart from that overall concept of the invention, several changes and improvements can also be made, these also should be considered as of the invention
Protection scope.
Claims (5)
1. a kind of secondary return air system with energy-conserving action, it is characterised in that: the return air drawn from air-conditioned room, a part are logical
It crosses after primary retirn air pipe is mixed with fresh air and enters blower (6), another part is entered blower (7) by secondary returning air hose, blower (7)
After the return air of submitting is mixed with the return air that blower (6) is sent out, air conditioning area is entered.
2. a kind of secondary return air system with energy-conserving action according to claim 1, it is characterised in that: the blower
(7) primary filter (22) are arranged in front air inlet.
3. a kind of secondary return air system with energy-conserving action according to claim 1, it is characterised in that: described primary time
Air hose and fresh air successively pass through primary retirn air mixing section (1), primary filter (21), medium effeciency filter (3), table it is cold/heating dish
Pipeline section (5) enters blower (6).
4. a kind of secondary return air system with energy-conserving action according to claim 1, it is characterised in that: the blower
(6) total pressure is greater than the total pressure of blower (7).
5. a kind of secondary return air system with energy-conserving action according to claim 1, it is characterised in that: the blower
It (7) is frequency controlling fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910465590.8A CN110094825A (en) | 2019-05-30 | 2019-05-30 | A kind of secondary return air system with energy-conserving action |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910465590.8A CN110094825A (en) | 2019-05-30 | 2019-05-30 | A kind of secondary return air system with energy-conserving action |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110094825A true CN110094825A (en) | 2019-08-06 |
Family
ID=67449799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910465590.8A Pending CN110094825A (en) | 2019-05-30 | 2019-05-30 | A kind of secondary return air system with energy-conserving action |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110094825A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111089355A (en) * | 2019-12-19 | 2020-05-01 | 珠海格力电器股份有限公司 | Rotary wheel dehumidification system |
| CN111121259A (en) * | 2019-12-19 | 2020-05-08 | 南京冠石科技股份有限公司 | Air conditioner return air recycling device |
| CN112797606A (en) * | 2020-12-31 | 2021-05-14 | 深圳市兴达扬机电安装有限公司 | Air-conditioning return air recycling energy-saving system |
| CN114963366A (en) * | 2022-06-15 | 2022-08-30 | 中国电子系统工程第四建设有限公司 | Secondary return air conditioning system and control method |
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| CN2402953Y (en) * | 1999-12-20 | 2000-10-25 | 张金荣 | Side blowing air conditioner using secondary return air for heating |
| CN102589061A (en) * | 2012-01-12 | 2012-07-18 | 广东红棉乐器有限公司 | Constant-temperature and constant-humidity production workshop and operation method thereof |
| CN102759153A (en) * | 2012-07-09 | 2012-10-31 | 赵伟 | Temperature/humidity independently-treated clean air conditioning unit |
| WO2013131436A1 (en) * | 2012-03-05 | 2013-09-12 | Rong Guohua | Air-conditioning unit with heat recovery |
| CN106016491A (en) * | 2016-07-13 | 2016-10-12 | 大连兆和科技发展有限公司 | Dust-removal air regulation device |
| CN106813349A (en) * | 2017-03-23 | 2017-06-09 | 福州鹏飞制冷设备有限公司 | A kind of energy-saving air processing system with secondary return air |
| CN206803335U (en) * | 2017-04-26 | 2017-12-26 | 上海电气开利能源工程有限公司 | Multi-functional air conditioner unit |
| CN108317632A (en) * | 2017-01-17 | 2018-07-24 | 河南中烟工业有限责任公司 | A kind of air-conditioning system |
| CN108413524A (en) * | 2018-04-04 | 2018-08-17 | 航天凯天环保科技股份有限公司 | A kind of combined type secondary returning air control humid air purification unit |
| CN210373958U (en) * | 2019-05-30 | 2020-04-21 | 河南省建筑设计研究院有限公司 | Secondary air return system with energy-saving effect |
-
2019
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Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1096867A (en) * | 1994-04-29 | 1994-12-28 | 余建华 | Reheating Air Conditioning processing method and use the air conditioner of this method |
| CN2402953Y (en) * | 1999-12-20 | 2000-10-25 | 张金荣 | Side blowing air conditioner using secondary return air for heating |
| CN102589061A (en) * | 2012-01-12 | 2012-07-18 | 广东红棉乐器有限公司 | Constant-temperature and constant-humidity production workshop and operation method thereof |
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| CN102759153A (en) * | 2012-07-09 | 2012-10-31 | 赵伟 | Temperature/humidity independently-treated clean air conditioning unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111089355A (en) * | 2019-12-19 | 2020-05-01 | 珠海格力电器股份有限公司 | Rotary wheel dehumidification system |
| CN111121259A (en) * | 2019-12-19 | 2020-05-08 | 南京冠石科技股份有限公司 | Air conditioner return air recycling device |
| CN112797606A (en) * | 2020-12-31 | 2021-05-14 | 深圳市兴达扬机电安装有限公司 | Air-conditioning return air recycling energy-saving system |
| CN114963366A (en) * | 2022-06-15 | 2022-08-30 | 中国电子系统工程第四建设有限公司 | Secondary return air conditioning system and control method |
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