CN101650066B - Fresh air flow control device for central air-conditioning system - Google Patents
Fresh air flow control device for central air-conditioning system Download PDFInfo
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- CN101650066B CN101650066B CN2009103071031A CN200910307103A CN101650066B CN 101650066 B CN101650066 B CN 101650066B CN 2009103071031 A CN2009103071031 A CN 2009103071031A CN 200910307103 A CN200910307103 A CN 200910307103A CN 101650066 B CN101650066 B CN 101650066B
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- new wind
- air
- fresh air
- sensor
- air flow
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Abstract
The invention discloses a fresh air flow control device for a central air-conditioning system. Measurement signals of a fresh air CO2 concentration sensor (2), a fresh air flow sensor (3) in each air-conditioning region, an air supply flow sensor (6) and a return air CO2 concentration sensor (8) are electrically connected with a required fresh air flow setter (4). Measurement signals of the freshair flow sensor (3) and fresh air flow set value signals in each air-conditioning region of the required fresh air flow setter (4) are electrically connected with a fresh air flow controller (10) which is electrically connected with a control end of an electric air valve (9). The required fresh air flow setter is electrically connected with the fresh air flow controller, and the fresh air flow set value of the fresh air flow controller is set in real time. The fresh air controller adjusts opening of the electric air valve so that the fresh air flow measurement value is close to or reaches theset value, thereby the invention satisfies the requirements of indoor sanitary condition and ventilation in the air-conditioning regions, and reduces the energy consumption of buildings as well.
Description
Technical field
The present invention relates to a kind of central air conditioner system resh air requirement control device.
Background technology
In use entreat in the building of air-conditioning system, for reducing air conditioner load and energy consumption, the seal of building is had relatively high expectations.For the sanitary condition that satisfies each air conditioning area and the requirement of ventilation, generally adopt VMC to carry new wind to each air conditioning area.Traditional VMC can not be regulated the new wind flow that enter each air conditioning area according to the new wind demand of each air conditioning area, will or too much increase the energy consumption of air-conditioning system because of introducing new wind flow like this; Or too small because of introducing new wind flow, do not satisfy the requirement of indoor occupant to new wind, make anoxic symptoms such as the indoor occupant appearance is tired, drowsiness, reduce labor productivity.
Summary of the invention
Technical problem to be solved by this invention provide a kind of can be according to the air conditioning area new wind flow that control enters this zone to the demand of new wind, the requirement of indoor sanitary condition of air conditioning area and ventilation can be satisfied, the central air conditioner system resh air requirement control device of building energy consumption can be reduced again.
In order to solve the problems of the technologies described above, central air conditioner system resh air requirement control device provided by the invention comprises the new wind flow control loop be made up of Electric air valve, new wind flow sensor and new wind flow controller and by new wind CO
2Concentration sensor, return air CO
2Concentration sensor, air flow rate sensor are set loop, described new wind CO with the new wind flow that new wind demand setting apparatus is formed
2The described new wind flow sensor of concentration sensor, each air conditioning area, air flow rate sensor, return air CO
2The measuring-signal of concentration sensor is electrically connected with described new wind demand setting apparatus, the new wind flow duty setting signal of each air conditioning area of the measuring-signal of described new wind flow sensor and described new wind demand setting apparatus is electrically connected with described new wind flow controller, described new wind flow controller is electrically connected with the control end of described Electric air valve, described Electric air valve and new wind flow sensor are located on the new wind air intake airduct of every group of air-treatment unit described new wind CO
2Concentration sensor is located on the new wind airduct, and described air flow rate sensor is located on the air-supply airduct, described return air CO
2Concentration sensor is arranged on the air-conditioning return air duct or in the air-conditioning key area.
Adopt the new wind flow control device of central air conditioner system of technique scheme, new wind CO
2The new wind flow sensor of concentration sensor, each air conditioning area and air flow rate sensor, return air CO
2The measuring-signal of concentration sensor is delivered to new wind demand setting apparatus, and new wind demand setting apparatus is according to the new wind of actual measurement and air flow rate, new wind and return air CO
2Concentration value, the new wind flow that calculates each air conditioning area according to the air-conditioning health conditions requiring in real time sets value.The new wind flow duty setting signal of the measuring-signal of the new wind flow sensor of each air conditioning area and each air conditioning area is delivered to the new wind flow controller of corresponding air conditioning area, each new wind flow controller is poor according to measured value and setting value, according to a certain control law, regulate the aperture of the moving air-valve of corresponding new wind-powered electricity generation, the new wind flow measured value that makes each air conditioning area near or equal the setting value of its new wind flow.
Characteristics of the present invention: the present invention can rationally control the new wind flow that enters each air conditioning area of building, has both prevented the energy consumption waste that the new wind of too much introducing brings; Avoid new wind to introduce the not enough IAQ problem that causes again, be applicable to most central air conditioner systems.
In sum, the present invention be a kind of can be according to the air conditioning area new wind flow that control enters this zone to the demand of new wind, the requirement of indoor sanitary condition of air conditioning area and ventilation can be satisfied, the central air conditioner system resh air requirement control device of building energy consumption can be reduced again.
Description of drawings
Fig. 1 is the composition and the fundamental diagram of central air conditioner system resh air requirement control device.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, the new wind airduct of new blower fan 1 is connected with many group air-treatment units 5 by technological requirement, is provided with new wind CO on the new wind airduct of new blower fan 1
2 Concentration sensor 2, on the new wind air intake airduct of every group of air-treatment unit 5, be provided with Electric air valve 9 and new wind flow sensor 3, on the air-supply airduct of every group of air-treatment unit 5, be provided with air flow rate sensor 6, be provided with return air CO on the air-conditioning return air duct or in the air-conditioning key area 7
2Concentration sensor 8, whole VMC are provided with a new wind demand setting apparatus 4, or each air conditioning area is provided with a new wind demand setting apparatus 4, new wind CO
2The new wind flow sensor 3 of concentration sensor 2, each air conditioning area, air flow rate sensor 6, return air CO
2The measuring-signal of concentration sensor 8 is electrically connected with new wind demand setting apparatus 4, each air conditioning area is provided with a new wind flow controller 10, the new wind flow duty setting signal of each air conditioning area of the measuring-signal of new wind flow sensor 3 and new wind demand setting apparatus 4 is electrically connected with new wind flow controller 10, and new wind flow controller 10 is electrically connected with the control end of Electric air valve 9.
Referring to Fig. 1, the new wind flow of each air conditioning area is by new wind flow controller 10 controls.New wind demand setting apparatus 4 is used for setting in real time the new wind flow setting value of each air conditioning area.New wind CO
2The new wind flow sensor 3 of concentration sensor 2, each air conditioning area and air flow rate sensor 6, return air CO
2The measuring-signal of concentration sensor 8 is delivered to new wind demand setting apparatus 4, and new wind demand setting apparatus 4 is according to the new wind of actual measurement and air flow rate, new wind and return air CO
2Concentration value, the new wind flow that calculates each air conditioning area according to the air-conditioning health conditions requiring in real time sets value.The new wind flow duty setting signal of the measuring-signal of the new wind flow sensor 3 of each air conditioning area and each air conditioning area is delivered to the new wind flow controller 10 of corresponding air conditioning area, each new wind flow controller 10 is poor according to measured value and setting value, according to a certain control law, regulate the aperture of corresponding Electric air valve 9, the new wind flow measured value that makes each air conditioning area near or equal the setting value of its new wind flow.
Claims (1)
1. central air conditioner system resh air requirement control device, comprise by Electric air valve (9), new wind flow sensor (3) is with the new wind flow control loop of new wind flow controller (10) composition with by new wind CO2 concentration sensor (2), return air CO2 concentration sensor (8), air flow rate sensor (6) is set the loop with the new wind flow that new wind demand setting apparatus (4) is formed, it is characterized in that: described new wind CO2 concentration sensor (2), the described new wind flow sensor (3) of each air conditioning area, air flow rate sensor (6), the measuring-signal of return air CO2 concentration sensor (8) is electrically connected with described new wind demand setting apparatus (4), the new wind flow duty setting signal of each air conditioning area of the measuring-signal of described new wind flow sensor (3) and described new wind demand setting apparatus (4) is electrically connected with described new wind flow controller (10), described new wind flow controller (10) is electrically connected with the control end of described Electric air valve (9), described Electric air valve (9) and new wind flow sensor (3) are located on the new wind air intake airduct of every group of air-treatment unit, described new wind CO2 concentration sensor (2) is located on the new wind airduct, described air flow rate sensor (6) is located on the air-supply airduct, and described return air CO2 concentration sensor (8) is arranged on the air-conditioning return air duct or in the air-conditioning key area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103071031A CN101650066B (en) | 2009-09-16 | 2009-09-16 | Fresh air flow control device for central air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103071031A CN101650066B (en) | 2009-09-16 | 2009-09-16 | Fresh air flow control device for central air-conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101650066A CN101650066A (en) | 2010-02-17 |
| CN101650066B true CN101650066B (en) | 2011-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103071031A Expired - Fee Related CN101650066B (en) | 2009-09-16 | 2009-09-16 | Fresh air flow control device for central air-conditioning system |
Country Status (1)
| Country | Link |
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| CN (1) | CN101650066B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840651B (en) * | 2012-09-28 | 2014-12-24 | 魏正金 | Intelligent wind volume control valve |
| CN104728930A (en) * | 2013-12-23 | 2015-06-24 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN107560119B (en) * | 2017-09-26 | 2020-02-04 | 深圳达实智能股份有限公司 | Hospital ward air quality on-demand control method and device thereof |
| CN113548070B (en) * | 2020-04-26 | 2022-10-25 | 中车青岛四方机车车辆股份有限公司 | Air volume control method and system and air valve controller |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2733215Y (en) * | 2004-09-29 | 2005-10-12 | 山东哈帕尔空调有限公司 | Intelligent fresh air exchange draught fan coil pipe unit |
| CN201497124U (en) * | 2009-09-16 | 2010-06-02 | 湖南大学 | Fresh air amount control device of central air conditioning system |
-
2009
- 2009-09-16 CN CN2009103071031A patent/CN101650066B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2733215Y (en) * | 2004-09-29 | 2005-10-12 | 山东哈帕尔空调有限公司 | Intelligent fresh air exchange draught fan coil pipe unit |
| CN201497124U (en) * | 2009-09-16 | 2010-06-02 | 湖南大学 | Fresh air amount control device of central air conditioning system |
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| Publication number | Publication date |
|---|---|
| CN101650066A (en) | 2010-02-17 |
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| SE01 | Entry into force of request for substantive examination | ||
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Granted publication date: 20110323 Termination date: 20130916 |