CN103836758A - Ventilation system and control method thereof - Google Patents

Ventilation system and control method thereof Download PDF

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Publication number
CN103836758A
CN103836758A CN201410046714.6A CN201410046714A CN103836758A CN 103836758 A CN103836758 A CN 103836758A CN 201410046714 A CN201410046714 A CN 201410046714A CN 103836758 A CN103836758 A CN 103836758A
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CN
China
Prior art keywords
air
pipeline
valve
ventilating system
pressure fan
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410046714.6A
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Chinese (zh)
Inventor
许文智
黄建
沈浩
李力群
刘晓燕
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SANXIANG Co Ltd
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SANXIANG Co Ltd
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Publication date
Application filed by SANXIANG Co Ltd filed Critical SANXIANG Co Ltd
Priority to CN201410046714.6A priority Critical patent/CN103836758A/en
Publication of CN103836758A publication Critical patent/CN103836758A/en
Pending legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The invention provides a ventilation system and a control method thereof. The ventilation system comprises a fresh air pipeline, an air feeder, a purifying device, an air exhausting pipeline, an exhaust fan, a bypass pipeline, a first air valve and a second air valve placed in the bypass pipeline. One end opening of the fresh air pipeline is formed in the bottom of a room, and the fresh air pipeline passes through the air feeder, the purifying device and the first air valve in sequence from the end opening to extend out of the room. The air exhausting pipeline is placed on the upper portion of the room and extends out of the room through the exhaust fan. One end of the bypass pipeline is communicated with a pipe section of the fresh air pipeline between the purifying device and the first air valve, and the other end of the bypass pipeline is communicated with a pipe section of the air exhausting pipeline between the end opening in the room and the exhaust fan. According to the control method, whether a ventilation mode is an outer circulating mode or an inner circulating mode is judged first, and then the first air valve, the second air valve, the air feeder and the air exhaust fan are controlled to achieve inner circulating and outer circulating. Fresh air is purified before the fresh air enters the room and is in contact with a human body, indoor air quality is effectively improved, and high ventilation efficiency is achieved.

Description

A kind of ventilating system and control method thereof
Technical field
The invention belongs to Heating, Ventilation and Air Conditioning (HVAC) Technology field, relate to a kind of ventilating system and control method thereof.
Background technology
Conventional ventilation method is to use total-heat exchanger to send into new wind at present, generally adopts top supplying air mode, and air draft is discharged from top, room.The technology drawback of tradition top supplying air has: after one, new wind mixes with foul atmosphere, then send into people's behaviour area, reduced the pure and fresh degree of new wind.Two, for meeting effect, resh air requirement is larger, means that air output is large, and blower fan power consumption is also large.Three, air-supply and return air are all at top, and the phenomenon that should be short-circuited, makes new wind can not effectively send to people's behaviour area.Four, to take the ceiling void more for airduct, large to construction level high request.
In existing aeration technology, also have from air supply at the bottom, from the mode of top air draft, but do not purify before new wind enters into the indoor scope contacting with human body, therefore existing aeration technology can not carry out new wind removal gaseous contaminant effectively.In addition, existing aeration technology can not effectively be realized the discharge of indoor air environment removal gaseous contaminant and indoor exhaust air, can not effectively promote indoor air quality, and drafting efficiency is not high.
Summary of the invention
The object of the present invention is to provide a kind of ventilating system and control method thereof that can effectively strengthen indoor air ventilating and clean-up effect.
In order to achieve the above object, solution of the present invention is:
A kind of ventilating system, comprises fresh air pipeline, pressure fan, purifier, exhaust duct, exhaust blower, by-pass line, the first air-valve and is arranged in the second air-valve of described by-pass line; One end port of described fresh air pipeline is positioned at bottom, room, as new wind air outlet; Described fresh air pipeline starts after described pressure fan, described purifier and the first air-valve, to stretch to successively outdoor from described new wind air outlet, the other end port outside faced chamber is new wind intake; Described exhaust duct is positioned at top, room, and one end port surface, to indoor, is collected mouth as indoor dirty wind; Described exhaust duct stretches to outdoor after described exhaust blower, and the other end port outside faced chamber is exhaust outlet; Described by-pass line one end is communicated with the pipeline section of described fresh air pipeline between described purifier and the first air-valve, and the other end is communicated with described exhaust duct and collects the pipeline section between mouth and described exhaust blower at described indoor dirty wind.
Described pressure fan, described purifier, described exhaust duct, described exhaust blower, described by-pass line, the first air-valve and the second air-valve are all positioned at top, room.
Described new wind air outlet and described exhaust outlet are positioned on the diagonal angle in room.
Described port openings in described exhaust duct faced chamber down.
In the pipeline section of described fresh air pipeline between described new wind air outlet and described pressure fan, part is positioned under floor.
The first air-valve and the second air-valve are respectively the first motor-driven valve and the second motor-driven valve.
Described ventilating system also comprises the current equalizer being positioned at before described purifier entrance, to control the wind speed in described purifier.
Described ventilating system also comprises total-heat exchanger, and described total-heat exchanger comprises the first heat exchange pipeline and the second heat exchange pipeline; The first heat exchange pipeline is connected in the pipeline section of described fresh air pipeline between described pressure fan and described purifier; The second heat exchange pipeline is connected in described exhaust duct and collects the pipeline section between mouth and described exhaust blower at described indoor dirty wind.
A control method of controlling above-mentioned ventilating system, comprises the following steps:
(1) judge that air vent mode is outer circulation or interior circulation;
(2) carry out described interior circulation or described outer circulation by controlling the first air-valve, the second air-valve, described pressure fan and described exhaust blower.
Described step (2) comprising:
(21) in the time that described air vent mode is outer circulation, control and open the first air-valve, close the second air-valve, open described pressure fan and described exhaust blower;
(22) when described air vent mode is interior circulation time, control and close the first air-valve, open the second air-valve, open described pressure fan and close described exhaust blower.
Described step (21) also comprises: control described pressure fan and exhaust blower, be greater than the exhaust air rate of described exhaust blower to control the air output of described pressure fan.
Described air output is 1.2 times of described exhaust air rate.
Described step (21) also comprises: the wind speed of controlling in described purifier is less than 3 meter per seconds.
Described step (22) also comprises: the wind speed of controlling in described purifier is less than 3 meter per seconds.
Owing to adopting such scheme, the invention has the beneficial effects as follows: ventilating system of the present invention and control method thereof purified be sent to the scope of indoor contact human body at new wind before, can effectively realize new wind and remove gaseous contaminant, indoor air environment is removed the discharge of gaseous contaminant and indoor exhaust air, effectively improve indoor air quality, there is stronger drafting efficiency simultaneously.
Brief description of the drawings
Fig. 1 is the structural representation of ventilating system in the embodiment of the present invention;
Fig. 2 is the part-structure enlarged diagram of ventilating system in the embodiment of the present invention;
Fig. 3 is the part-structure enlarged diagram of ventilating system in another embodiment of the present invention;
Fig. 4 is the outer circulation schematic diagram of ventilating system in the embodiment of the present invention;
Fig. 5 is the interior circulation schematic diagram of ventilating system in the embodiment of the present invention.
In accompanying drawing: 1, fresh air pipeline; 101, new wind air outlet; 102, new wind intake; 2, exhaust duct; 201, indoor dirty wind is collected mouth; 202, exhaust outlet; 3, by-pass line; ; 4, in room; 5, room wall; 601, the first motor-driven valve; 602, the second motor-driven valve; 701, one of new wind flow direction of outer circulation; 702, two of the new wind flow direction of outer circulation; 703, three of the new wind flow direction of outer circulation; 704, four of the new wind flow direction of outer circulation; 705, five of the new wind flow direction of outer circulation; 801, one of dirty wind flow direction of outer circulation; 802, two of the dirty wind flow direction of outer circulation; 803, three of the dirty wind flow direction of outer circulation; 804, four of the dirty wind flow direction of outer circulation; 901, one of interior loop direction; 902, two of interior loop direction; 903, three of interior loop direction; 904, four of interior loop direction; 905, five of interior loop direction; 906, six of interior loop direction; 907, seven of interior loop direction; 908, eight of interior loop direction; 909, nine of interior loop direction; 10, total-heat exchanger.
Detailed description of the invention
Below in conjunction with accompanying drawing illustrated embodiment, the present invention is further illustrated.
The present invention proposes a kind of ventilating system, as shown in Figure 1, Fig. 2 is the enlarged diagram of part parts wherein to its structural representation.This ventilating system comprises fresh air pipeline 1, exhaust duct 2, pressure fan, exhaust blower, purifier, the first Electric air valve 601, the second Electric air valve 602 and by-pass line 3.Wherein, 4 is in room, and 5 is room wall.
One end port of fresh air pipeline 1 is new wind air outlet 101, is arranged in the floor in room, for new wind is sent in room from bottom, room.And fresh air pipeline 1 is positioned under room floor near the pipeline section of new wind air outlet 101.Fresh air pipeline 1 starts successively to stretch to through pressure fans, purifier and the first motor-driven valve 601 outdoor from new wind air outlet 101, its other end port is as new wind intake 102 and outside faced chamber.Wherein, pressure fan, purifier, exhaust duct 2, exhaust blower, by-pass line 3, the first motor-driven valve 601 and the second motor-driven valve 602 are all positioned at top, room.The first motor-driven valve 601 is for controlling the opening and closing of fresh air pipeline 1; Pressure fan provides power for new wind is incorporated into fresh air pipeline 1.In addition, this ventilating system also comprises the current equalizer being positioned at before purifier, for controlling the wind speed of purifier.
One end port of exhaust duct 2 is collected mouth 201 as indoor dirty wind, is positioned at interior space top, and opening down.This exhaust duct 2 is through the backward outdoor extension of exhaust blower, and its other end port surface is to outdoor, as exhaust outlet 202.On exhaust outlet 202 and the diagonal angle of new wind air outlet 101 in room.
Pipeline section on by-pass line 3 one end connection fresh air pipelines 1 between purifier and the first motor-driven valve 601, the other end is communicated with indoor dirty wind on exhaust duct 2 and collects the pipeline section between mouth 201 and exhaust blower, whether the second motor-driven valve 602 is connected in by-pass line 3, fresh air pipeline 1 and exhaust duct 2 are communicated with in order to control by-pass line 3.
On the basis of this ventilating system, control pressure fan, exhaust blower, the first motor-driven valve 601 and the second motor-driven valve 602, can control introducing and the purification of new wind, the discharge of the circulation of room air and purification and indoor exhaust air.
Another embodiment of the present invention has increased a total-heat exchanger 10 on the basis of last embodiment.Total-heat exchanger 10 comprises the first heat exchange pipeline and the second heat exchange pipeline, and the medium in the first heat exchange pipeline and the second heat exchange pipeline carries out full heat exchange.One end of the first heat exchange pipeline connects the fresh air pipeline pipeline section after pressure fan, and the other end connects the fresh air pipeline pipeline section before purifier, and this total-heat exchanger 10 is positioned on fresh air pipeline, and between pressure fan and purifier.The interior dirty wind of one end junction chamber of the second heat exchange pipeline is collected the exhaust duct pipeline section after mouth, and the other end connects the exhaust duct pipeline section before exhaust blower, and this total-heat exchanger 10 is positioned on exhaust duct, and collects between mouth and exhaust blower in indoor dirty wind.Thereby when total-heat exchanger 10 is worked, new wind is through the first heat exchange pipeline, indoor dirty wind is through the second heat exchange pipeline, and new wind and indoor dirty wind carry out full heat exchange in total-heat exchanger 10.Fig. 3 is the enlarged diagram of its part-structure.
The invention allows for a kind of control method of above-mentioned ventilating system.This control method comprises the following steps:
(1) judge that air vent mode instruction is outer circulation or interior circulation;
(2) carry out outer circulation or interior circulation by controlling the first motor-driven valve 601, the second motor-driven valve 602, exhaust blower and pressure fan.
Above-mentioned steps (2) specifically comprises:
(21) in the time that air vent mode instruction is outer circulation, control and open the first motor-driven valve 601, close the second motor-driven valve 602; And open pressure fan and exhaust blower; Meanwhile, by regulating current equalizer, control wind speed in purifier and be less than 3 meter per seconds, and regulate pressure fan and exhaust blower, be greater than exhaust air rate to control air output, preferably air output is exhaust air rate more than 1.2 times.
Now, the first motor-driven valve 601 is opened, the free pathway of new wind in fresh air pipeline 1; Because pressure fan is opened, under its effect, outdoor new wind will enter fresh air pipeline 1 through new wind intake 102 simultaneously.And because the second motor-driven valve 602 cuts out, the path of new wind in by-pass line 3 is blocked, therefore new wind can not enter exhaust duct 2.Therefore, new wind purifies through purifier from new wind intake 102 enters fresh air pipeline 1, and the new wind being cleaned enters in room from floor by new wind air outlet 101.Because exhaust blower is opened, under its effect, indoor dirty wind is collected mouth 201 from indoor dirty wind and is entered exhaust duct 2, and is discharged to outdoor from exhaust outlet 202.Therefore, outer circulation can realize the gaseous contaminant of removing outdoor new wind, and discharges indoor exhaust air simultaneously.
Fig. 4 is the ventilation state schematic diagram of now ventilating system, and in figure, arrow is respectively new wind flow direction and dirty wind flow direction.701 one of for the new wind flow direction of outer circulation, and 702 be the new wind flow direction of outer circulation two, 703 be the new wind flow direction of outer circulation three, 704 be the new wind flow direction of outer circulation four, 705 is the new wind flow direction of outer circulation five; 801 is one of dirty wind flow direction of outer circulation, and 802 is that two, 803 of the dirty wind flow direction of outer circulation is that three, 804 of the dirty wind flow direction of outer circulation is four of outer circulation dirt wind flow direction.
(22) when air vent mode instruction is interior circulation time, control and close the first motor-driven valve 601, open the second motor-driven valve 602; And unlatching pressure fan, cuts out exhaust blower; Meanwhile, by regulating current equalizer, the wind speed of controlling in purifier is less than 3 meter per seconds.
Now, because the first motor-driven valve 601 cuts out, the path of new wind in fresh air pipeline 1 is blocked, can not enter fresh air pipeline 1.Because the second motor-driven valve opens 602, fresh air pipeline 1 and exhaust duct 2 are connected by by-pass line 3.In addition, because pressure fan is opened, and exhaust blower cuts out, under the effect of pressure fan, room air is collected mouth 201 from indoor dirty wind and is entered exhaust duct 2, and enters by-pass line 3 from exhaust duct 2 roads, enters fresh air pipeline 1 from by-pass line 3, and enter in purifier and be cleaned, the air after purification enters into indoor by new wind air outlet 101 under the effect of pressure fan.
Therefore, interior circulation can realize removes indoor gaseous contaminant, but can not get rid of outdoor waste gas.Figure 5 shows that the now ventilation state schematic diagram of ventilating system, the flow direction that wherein direction of arrow is indoor dirty wind; 901 is one of interior loop direction, 902 is two of interior loop direction, 903 is three of interior loop direction, 904 is four of interior loop direction, 905 is that five, 906 of interior loop direction is that six, 907 of interior loop direction is seven of interior loop direction, 908 is that eight, 909 of interior loop direction is nine of interior loop direction.
In interior circulation and outer circulation situation, because air output is greater than exhaust air rate, therefore indoor room is malleation with respect to outdoor air, can prevent that outdoor foul atmosphere from penetrating into indoor.Wind speed in fresh air pipeline is less than 3 meters of/square of seconds, can effectively realize indoor replacement aeration.Replacement aeration blows on ground, room with low speed, air-flow slowly moves up with the state of the piston flow of similar laminar flow, fresh air is sent from air port, ground with low speed, in room, form fresh " air lake ", allow people first breathe fresh air, the used heat air of exhalation is collected at top, room, discharges by the exhaust outlet on top, room, this air supply mode is compared with traditional mixed ventilation way, can make office work district obtain higher air quality, higher drafting efficiency.
In summary, ventilating system of the present invention and control method thereof purified be sent to the scope of indoor contact human body at new wind before, can effectively realize new wind and remove gaseous contaminant, indoor air environment is removed the discharge of gaseous contaminant and indoor exhaust air, effectively improve indoor air quality, there is stronger drafting efficiency simultaneously.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.Person skilled in the art obviously can easily make various amendments to these embodiment, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not departing from improvement and the amendment that category of the present invention makes all should be within protection scope of the present invention.

Claims (14)

1. a ventilating system, is characterized in that: comprise fresh air pipeline, pressure fan, purifier, exhaust duct, exhaust blower, by-pass line, the first air-valve and be arranged in the second air-valve of described by-pass line;
One end port of described fresh air pipeline is positioned at bottom, room, as new wind air outlet; Described fresh air pipeline starts after described pressure fan, described purifier and the first air-valve, to stretch to successively outdoor from described new wind air outlet, the other end port outside faced chamber is new wind intake;
Described exhaust duct is positioned at top, room, and one end port surface, to indoor, is collected mouth as indoor dirty wind; Described exhaust duct stretches to outdoor after described exhaust blower, and the other end port outside faced chamber is exhaust outlet;
Described by-pass line one end is communicated with the pipeline section of described fresh air pipeline between described purifier and the first air-valve, and the other end is communicated with described exhaust duct and collects the pipeline section between mouth and described exhaust blower at described indoor dirty wind.
2. ventilating system according to claim 1, is characterized in that: described pressure fan, described purifier, described exhaust duct, described exhaust blower, described by-pass line, the first air-valve and the second air-valve are all positioned at top, room.
3. ventilating system according to claim 1, is characterized in that: described new wind air outlet and described exhaust outlet are positioned on the diagonal angle in room.
4. ventilating system according to claim 1, is characterized in that: the described port openings in described exhaust duct faced chamber down.
5. ventilating system according to claim 1, is characterized in that: in the pipeline section of described fresh air pipeline between described new wind air outlet and described pressure fan, part is positioned under floor.
6. ventilating system according to claim 1, is characterized in that: the first air-valve and the second air-valve are respectively the first motor-driven valve and the second motor-driven valve.
7. ventilating system according to claim 1, is characterized in that: described ventilating system also comprises the current equalizer being positioned at before described purifier entrance, to control the wind speed in described purifier.
8. ventilating system according to claim 1, is characterized in that: described ventilating system also comprises total-heat exchanger, and described total-heat exchanger comprises the first heat exchange pipeline and the second heat exchange pipeline; The first heat exchange pipeline is connected in the pipeline section of described fresh air pipeline between described pressure fan and described purifier; The second heat exchange pipeline is connected in described exhaust duct and collects the pipeline section between mouth and described exhaust blower at described indoor dirty wind.
9. a method of controlling the ventilating system described in claim 1, is characterized in that: comprise the following steps:
(1) judge that air vent mode is outer circulation or interior circulation;
(2) carry out described interior circulation or described outer circulation by controlling the first air-valve, the second air-valve, described pressure fan and described exhaust blower.
10. the control method of ventilating system according to claim 9, is characterized in that: described step (2) comprising:
(21) in the time that described air vent mode is outer circulation, control and open the first air-valve, close the second air-valve, open described pressure fan and described exhaust blower;
(22) when described air vent mode is interior circulation time, control and close the first air-valve, open the second air-valve, open described pressure fan and close described exhaust blower.
The control method of 11. ventilating systems according to claim 10, is characterized in that: described step (21) also comprises: control described pressure fan and exhaust blower, be greater than the exhaust air rate of described exhaust blower to control the air output of described pressure fan.
The control method of 12. ventilating systems according to claim 11, is characterized in that: it is more than 1.2 times that described air output is described exhaust air rate.
The control method of 13. ventilating systems according to claim 10, is characterized in that: described step (21) also comprises: the wind speed of controlling in described purifier is less than 3 meter per seconds.
The control method of 14. ventilating systems according to claim 10, is characterized in that: described step (22) also comprises: the wind speed of controlling in described purifier is less than 3 meter per seconds.
CN201410046714.6A 2014-02-10 2014-02-10 Ventilation system and control method thereof Pending CN103836758A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105465918A (en) * 2015-12-05 2016-04-06 张柳明 Indoor air purification method and air convective circulation purification system adopted in indoor air purification method
CN105605724A (en) * 2016-02-04 2016-05-25 暴辰生 Fresh air purifying heat exchange unit
CN106839314A (en) * 2017-02-07 2017-06-13 乔志林 A kind of VMC controller
CN111503848A (en) * 2020-04-20 2020-08-07 卢利华 Control method capable of adjusting indoor airflow organization form of residence
CN111536642A (en) * 2020-05-11 2020-08-14 广州沃森环保产业有限公司 Heat pump multifunctional all-in-one machine for removing haze by fresh air and control method thereof
CN112050341A (en) * 2020-09-10 2020-12-08 南京长江都市建筑设计股份有限公司 Toilet ventilation system with upper row, lower row and ventilation method
CN112178780A (en) * 2020-10-27 2021-01-05 珠海格力电器股份有限公司 Fresh air device, air conditioner, fresh air control method and controller
CN112696765A (en) * 2020-12-28 2021-04-23 湖南美业环境科技有限公司 Fresh air system and control method thereof
CN112984670A (en) * 2021-03-22 2021-06-18 浙江韶华建设有限公司 House ventilation system

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CN101738135A (en) * 2008-11-07 2010-06-16 赫尔穆特巴尔兹股份有限公司 Heat exchanger unit for heat energy utilizing device
CN102425833A (en) * 2011-11-28 2012-04-25 同济大学 Residential gallery air cooling system and operation controlling method thereof
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105465918A (en) * 2015-12-05 2016-04-06 张柳明 Indoor air purification method and air convective circulation purification system adopted in indoor air purification method
CN105605724A (en) * 2016-02-04 2016-05-25 暴辰生 Fresh air purifying heat exchange unit
CN105605724B (en) * 2016-02-04 2019-10-18 暴辰生 A kind of fresh air purifying heat-exchange unit
CN106839314A (en) * 2017-02-07 2017-06-13 乔志林 A kind of VMC controller
CN111503848A (en) * 2020-04-20 2020-08-07 卢利华 Control method capable of adjusting indoor airflow organization form of residence
CN111536642A (en) * 2020-05-11 2020-08-14 广州沃森环保产业有限公司 Heat pump multifunctional all-in-one machine for removing haze by fresh air and control method thereof
CN112050341A (en) * 2020-09-10 2020-12-08 南京长江都市建筑设计股份有限公司 Toilet ventilation system with upper row, lower row and ventilation method
CN112050341B (en) * 2020-09-10 2022-03-04 南京长江都市建筑设计股份有限公司 Toilet ventilation system with upper row, lower row and ventilation method
CN112178780A (en) * 2020-10-27 2021-01-05 珠海格力电器股份有限公司 Fresh air device, air conditioner, fresh air control method and controller
CN112178780B (en) * 2020-10-27 2021-09-14 珠海格力电器股份有限公司 Fresh air device, air conditioner, fresh air control method and controller
CN112696765A (en) * 2020-12-28 2021-04-23 湖南美业环境科技有限公司 Fresh air system and control method thereof
CN112984670A (en) * 2021-03-22 2021-06-18 浙江韶华建设有限公司 House ventilation system

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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140604