CN220062061U - Fresh air control system of air conditioning unit - Google Patents
Fresh air control system of air conditioning unit Download PDFInfo
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- CN220062061U CN220062061U CN202320260252.2U CN202320260252U CN220062061U CN 220062061 U CN220062061 U CN 220062061U CN 202320260252 U CN202320260252 U CN 202320260252U CN 220062061 U CN220062061 U CN 220062061U
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- conditioning unit
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- valve
- fresh air
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 68
- 230000001105 regulatory effect Effects 0.000 claims abstract description 27
- 238000005265 energy consumption Methods 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000007704 transition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Air Conditioning Control Device (AREA)
Abstract
The utility model relates to a fresh air control system of an air conditioning unit, which comprises a fresh air electric regulation air valve, a fixed air volume valve and the air conditioning unit, wherein an air inlet of the air conditioning unit is respectively connected with a fresh air pipe and an air return pipe of the air conditioning unit, an air outlet of the air conditioning unit is connected with an air supply pipe of the air conditioning unit, and the fresh air electric regulation air valve and the fixed air volume valve are arranged at an inlet of the fresh air pipe in parallel. The utility model can ensure the minimum fresh air quantity required by indoor personnel in air conditioning seasons, control the electric regulating air valve to run with fresh air or mixed air in transitional seasons, effectively reduce the energy consumption of the air conditioner, solve the problem of valve control precision of long-time low air quantity running of the traditional single electric regulating air valve, and always ensure that the fresh air quantity of the air conditioner is not less than the minimum fresh air quantity.
Description
Technical Field
The utility model belongs to the field of building air conditioners, and relates to a fresh air control system of an air conditioning unit.
Background
According to the requirements of the 3.0.6 th item of the heating ventilation and air conditioning design specifications of civil buildings, the minimum fresh air quantity of the air conditioning system needs to meet the requirements of fresh air quantity required by indoor personnel, and for a general comfort air conditioning system, the fresh air ratio of an air conditioning unit is generally changed between 5% and 50% along with different fresh air load ratios.
The air conditioning system is important energy consumption equipment in a building, so that a plurality of measures can be taken in the design of the air conditioning system, the energy consumption of the air conditioner is effectively reduced on the premise of ensuring comfort and safety, one of the green energy-saving measures is to operate the air conditioning unit at 50% -100% fresh air ratio in transitional seasons, and outdoor fresh and cool air is directly introduced into a room through the air conditioning unit.
When the requirements of the two aspects are met, the fresh air quantity of the air conditioning unit needs to be adjusted between 5% and 100% of fresh air ratio. If a conventional single electric regulating air valve is adopted to control the change of fresh air quantity, the valve control precision in a lower fresh air ratio interval of 5% -10% is difficult to ensure, and the air conditioning unit is set to be the minimum fresh air ratio for running in summer and winter in air conditioning seasons. Therefore, the valve is in a lower control precision for a long time under the condition, the adjusting performance of the valve is not fully exerted, and the economic benefit is low.
Disclosure of Invention
The utility model aims to solve the problem of providing a fresh air control system of an air conditioning unit, which can ensure the minimum fresh air quantity required by indoor personnel of the air conditioning unit in air conditioning seasons and control an electric control air valve to perform full fresh air or mixed air operation in transitional seasons, so that the energy consumption of the air conditioner is effectively reduced.
The technical scheme provided by the utility model is as follows: the utility model provides an air conditioning unit new trend control system, includes new trend electric control blast gate, decides blast volume valve, air conditioning unit, and air conditioning unit's air intake connects new tuber pipe and air conditioner return air pipe respectively, and air conditioning unit's air outlet is connected the air conditioner blast pipe, and new trend electric control blast gate and decide blast volume valve parallelly connected the setting at the new trend pipe entry.
And an air return electric adjusting air valve is arranged on the air conditioner air return pipe.
And the fresh air pipe and the air conditioner return air pipe are respectively provided with an air quantity sensor, a temperature sensor and a humidity sensor.
And manual air regulating valves are respectively arranged on the new air pipe and the air conditioner return air pipe.
The air conditioning unit is a constant air volume air conditioning unit. Or the air conditioning unit is a variable air volume air conditioning unit.
The utility model combines the design of the fixed air valve and the electric regulation air valve, the inlet of the fresh air pipe of the air conditioning unit is provided with the fixed air valve and the electric regulation air valve which are connected in parallel, and the air conditioning return pipe is provided with the electric regulation air valve. The fixed air quantity valve is opened for a long time, and the opening and the closing and the opening of the fresh air electric regulating air valve and the return air electric regulating air valve are regulated according to the indoor and outdoor air temperature and humidity. The fresh air main pipe and the return air main pipe are respectively provided with temperature, humidity and air quantity sensors, and the air supply main pipe is provided with the air quantity sensors, so that the fresh air quantity and the temperature and the humidity can be detected in real time.
In order to reduce the energy consumption of the air conditioner in the air conditioning season, the fresh air quantity of the air conditioning unit keeps the minimum fresh air quantity required indoors to operate, at the moment, the fresh air electric regulating air valve is kept closed, the return air electric regulating air valve is kept fully opened, and the fresh air quantity of the air conditioning unit is accurately controlled by the fresh air control system through the fixed air quantity valve.
During the transition season, the cold and hot water valves of the air conditioning unit are closed, the fresh air of the air conditioning unit runs, and the fresh air quantity is controlled by adjusting the fresh air electric regulating air valve. When outdoor fresh air temperature is too low and cannot be directly fed into a room, the air conditioning unit enters a mixed air working condition, the return air electric regulating air valve is used as auxiliary regulation, and the opening of the return air electric air valve and the opening of the fresh air electric regulating air valve can be regulated simultaneously to control the air supply temperature in a comfortable range
The fresh air control system of the air conditioning unit can ensure the minimum fresh air quantity required by indoor personnel in the air conditioning season, control the electric regulating air valve to run with fresh air or mixed air in the transitional season, effectively reduce the energy consumption of the air conditioner, solve the problem of the valve control precision of the long-time low air quantity running of the traditional single electric regulating air valve, respectively improve the valve control precision of the fresh air quantity in the air conditioning season and the fresh air quantity in the transitional season, and always ensure that the fresh air quantity of the air conditioner is not smaller than the minimum fresh air quantity required.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
FIG. 2 is a schematic diagram of the mechanical air supply control of the present utility model.
Description of the embodiments
Referring to fig. 1 and 2, the utility model comprises a fresh air electric regulation air valve 1, a return air electric regulation air valve 2, a fixed air volume valve 3 and an air conditioning unit 5, wherein an air inlet of the air conditioning unit 5 is respectively connected with a fresh air pipe 9 and an air conditioning return air pipe 10, an air outlet of the air conditioning unit 5 is connected with an air conditioning air supply pipe 11, the fresh air electric regulation air valve 1 and the fixed air volume valve 3 are arranged at an inlet of the fresh air pipe 9 of the air conditioning unit 5 in parallel, and the return air electric regulation air valve 2 is arranged on the air conditioning return air pipe 10; an air quantity sensor 6, a temperature sensor 7 and a humidity sensor 8 are arranged on the fresh air pipe 9 and the air conditioner return air pipe 10; the air-conditioning air supply pipes 11 are provided with air quantity sensors 6.
And the fresh air pipe 9 and the air conditioner return air pipe 10 are respectively provided with a manual adjusting air valve 4.
The air conditioning unit 5 can be a constant air volume air conditioning unit or a variable air volume air conditioning unit.
The utility model can realize fresh air control under three working conditions. The air quantity sensor 6, the temperature sensor 7 and the humidity sensor 8 are respectively arranged on the fresh air main pipe and the return air main pipe, and the air quantity sensor 6 is arranged on the air supply main pipe, so that the fresh air quantity, the return air quantity and the air temperature and humidity can be detected in real time.
Air conditioner working conditions in season: when the enthalpy value of the outdoor air in summer is higher than the return air enthalpy value or the temperature of the outdoor air is higher than the return air temperature, the cold water valve of the air conditioner is opened, the fresh air electric regulating air valve 1 is kept closed, the return air electric regulating air valve 2 is kept fully opened, and the fresh air control system maintains the minimum fresh air quantity to operate by utilizing the fixed air quantity valve 3; when the air-conditioning return air temperature in winter is lower than the indoor design temperature in winter, the air-conditioning hot water valve is opened, the fresh air electric regulating air valve 1 is kept closed, the return air electric regulating air valve 2 is kept fully opened, and the fresh air control system maintains the minimum fresh air quantity to operate by utilizing the fixed air quantity valve 3.
Full fresh air working condition in transition season: when the outdoor air enthalpy value is smaller than the return air enthalpy value and the outdoor air temperature is lower than the return air temperature, the return air electric regulating air valve 2 is closed, the fresh air electric regulating air valve 1 is kept fully open, the air conditioning system runs with fresh air, and the fresh air quantity of the air conditioner can be always ensured to be not smaller than the necessary minimum fresh air quantity.
Transitional season air mixing working condition: when the outdoor air temperature is lower than the set air supply temperature of the air conditioner, the opening of the return air electric regulating air valve 2 and the opening of the fresh air electric regulating air valve 1 are regulated by the system, the fresh air ratio is regulated to control the air supply temperature to be in a comfortable range, and the fresh air quantity of the air conditioner can be always ensured to be not smaller than the necessary minimum fresh air quantity.
Claims (6)
1. A fresh air control system of an air conditioning unit is characterized in that: the air conditioner comprises a fresh air electric regulation air valve, a fixed air quantity valve and an air conditioner unit, wherein an air inlet of the air conditioner unit is respectively connected with a fresh air pipe and an air conditioner return air pipe, an air outlet of the air conditioner unit is connected with an air conditioner air supply pipe, and the fresh air electric regulation air valve and the fixed air quantity valve are arranged at an inlet of the fresh air pipe in parallel.
2. The air conditioning unit fresh air control system according to claim 1, wherein: an electric return air regulating air valve is arranged on the return air pipe of the air conditioner.
3. The fresh air control system for an air conditioning unit according to claim 1 or 2, wherein: and the fresh air pipe and the air conditioner return air pipe are respectively provided with an air quantity sensor, a temperature sensor and a humidity sensor.
4. The fresh air control system for an air conditioning unit according to claim 1 or 2, wherein: manual air regulating valves are respectively arranged on the new air pipe and the air conditioning return air pipe.
5. The fresh air control system for an air conditioning unit according to claim 1 or 2, wherein: the air conditioning unit is a constant air volume air conditioning unit.
6. The fresh air control system for an air conditioning unit according to claim 1 or 2, wherein: the air conditioning unit is a variable air volume air conditioning unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320260252.2U CN220062061U (en) | 2023-02-20 | 2023-02-20 | Fresh air control system of air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320260252.2U CN220062061U (en) | 2023-02-20 | 2023-02-20 | Fresh air control system of air conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220062061U true CN220062061U (en) | 2023-11-21 |
Family
ID=88749452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320260252.2U Active CN220062061U (en) | 2023-02-20 | 2023-02-20 | Fresh air control system of air conditioning unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220062061U (en) |
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2023
- 2023-02-20 CN CN202320260252.2U patent/CN220062061U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240624 Address after: 430000 No. 8, Siwei Road, Jiang'an District, Wuhan City, Hubei Province Patentee after: CITIC GENERAL INSTITUTE OF ARCHITECTURAL DESIGN AND RESEARCH Co.,Ltd. Country or region after: China Patentee after: CITIC Corporation of China Address before: 430014 No. four, No. 8, Lu Lu, Jiang'an District, Hubei, Wuhan Patentee before: CITIC GENERAL INSTITUTE OF ARCHITECTURAL DESIGN AND RESEARCH Co.,Ltd. Country or region before: China |