CN201021837Y

CN201021837Y - A home central air conditioner with wind variable end

Info

Publication number: CN201021837Y
Application number: CNU2006200445222U
Authority: CN
Inventors: 陈武
Original assignee: Individual
Current assignee: XIAMEN TONLEED ENERGY CONSERVATION CO Ltd
Priority date: 2006-08-03
Filing date: 2006-08-03
Publication date: 2008-02-13
Anticipated expiration: 2016-08-03

Abstract

An indoor central air-conditioner with an air-variable terminal belongs to air tube indoor central air-conditioner, comprising a fresh air adjusting valve (1), a reflux adjusting valve (2), an air filter purifier (3), a direct expansion air conditioning coil tube (4), an outdoor machine (5), an air feeder (6), and an air-variable terminal (9) or the like, which are connected via air tubes. In the indoor central air-conditioner, each room is provided with an air-variable terminal to continuously adjust the air quantity fed into each room, and the air feeding total tube is provided with an air temperature sensor (7) and an air pressure difference sensor (8), which respectively adjust the abilities of the air conditioner and the air feeder (6) to hold constant air temperature and air pressure. The utility model can realize flexible and independent control of single room temperature, while each room temperature can be freely set accurately.

Description

A kind of residential central air-that has vav terminal

Affiliated technical field

The utility model relates to a kind of airduct type residential central air-; It can be applicable in villa, household suite and the small commercial building.

Background technology

At present, residential central air-can be divided into three major types; Both cold water type residential central air-s, refrigerant multi-joint (drag many) type residential central air-and airduct type residential central air-.In airduct type residential central air-, deliver in each room via airduct and air diffuser by pressure fan through the air that air conditioner focused on, air of handling and the air in the room directly carry out the wet exchange of heat, realize the adjusting to aerial temperature and humidity in the room.Compare with other two class residential central air-s, airduct type residential central air-system is simple, be convenient to realize indoor fresh air supply and winter air humidification, cost is lower, be easy to safeguard; But existing airduct type residential central air-can only be controlled the average air temperature or the return air temperature of whole air conditioning area, and promptly each room of whole air conditioning area can only be conditioned and be controlled at same temperature; It is difficult to according in the air conditioning area separately the load needs in room or variations in temperature regulate continuously and send into the air quantity in room separately, each room temperature can not realize independently accurately controlling in the air conditioning area.

Summary of the invention

Can't realize that in order to overcome existing airduct type residential central air-the independence of each room temperature is accurately controlled in the air conditioning area; The utility model provides a kind of airduct type residential central air-; It allows the user freely to set the temperature in each room; It can regulate the air output in each room continuously, realizes the independent control of each room temperature in the air conditioning area, and the temperature-controlled precision height.

The technical scheme that its technical problem that solves the utility model adopts is: in this airduct type residential central air-, for each air-conditioned room independently is equipped with a vav terminal; This vav terminal can be according to the variation of the deviation of room actual temperature and design temperature, according to certain control algolithm regulate terminal in the size of throttle opening, thereby the size of regulating the air output that enters each room; Simultaneously in order to ensure each room temperature being realized independently high accuracy control, in the header pipe of this airduct type residential central air-, be equipped with an air pressure difference sensor and an air temperature sensor, by regulating the ability of pressure fan, control the air-supply static pressure that keeps certain; By regulating the ability of air conditioner, control the wind pushing temperature that keeps certain.

The beneficial effects of the utility model are, this airduct type residential central air-can be realized the independently control flexibly of each indoor air temperature in air conditioned building, each room temperature can freely be set, and the temperature-controlled precision height, helps satisfying the user to the difference requirement of thermal comfort and the energy-saving run under the realization sub-load.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Accompanying drawing is a schematic diagram of structure of the present utility model;

Among the figure, 1. new wind control valve, 2. return air control valve, 3. air filtration and purification apparatus, (when air conditioner was in refrigerating operaton, work was evaporimeter to 4. direct expansion formula air-conditioning coil pipe; When air conditioner was in heating operation, then working was condenser), 5. outdoor unit (comprising compressor, throttling arrangement, heat exchanger and blower fan), 6. pressure fan, 7. air temperature sensor, 8. air pressure difference sensor, 9. header pipe, 10. blowpipe, 11. vav terminals, 12. air diffuser, 13. temperature controller, 14. return air arms, 15. return air house stewards, 16. the air-treatment case, 17. fresh wind tubes.

The specific embodiment

In the accompanying drawing illustrated embodiment, the applied air conditioning area of this airduct type residential central air-only has two rooms, so only be equipped with two vav terminals; But the utility model is equally applicable to institute's band room number greater than plural air conditioning area, and each air-conditioned room is equipped with a vav terminal with each.

In the accompanying drawings, the new wind that is imported by fresh wind tube (17) enters air-treatment case (16) after via new wind control valve (1), also enter air-treatment case (16) from the return air of each air-conditioned room after via return air control valve (2) by what return air house steward (15) led back, new wind fully mixes in air-treatment case (16) with return air; After mixed air carries out purified treatment via air filtration and purification apparatus (3), the cold-producing medium generation heat exchange in direct expansion formula air-conditioning coil pipe (4) is located and managed; When the air conditioner that is made of direct expansion formula air-conditioning coil pipe (4) and outdoor unit (5) was in refrigerating operaton, the conditioner disk plumber was as evaporimeter, and mixing air is handled by cool-down dehumidification herein; When air conditioner was in heating operation, the conditioner disk plumber was as condenser, and mixing air then is heated hyperthermic treatment herein; Be assigned to the blowpipe (10) in each room by pressure fan (6), header pipe (9) via the air after handling, be installed in room temperature that each vav terminal (11) on the blowpipe (10) then sensed according to the temperature controller (13) in the pairing room separately and with the size of the deviation of its setting room temperature, regulate the size of its terminal interior throttle opening continuously according to certain control algolithm, control and regulation enter the size of the air quantity of air-conditioned room via vav terminal (11) and air diffuser (12), thereby realize the independent control of each room temperature.In addition, accurate independent control in order to ensure each room temperature, header pipe (9) at this airduct type residential central air-goes up an outfit air temperature sensor (7) and an air pressure difference sensor (8), the variation of temperature of this place's air (air-supply) that the air conditioner that is made of direct expansion formula air-conditioning coil pipe (4) and outdoor unit (5) can be sensed according to this air temperature sensor (7), the ability of regulating air conditioner automatically according to certain control algolithm is to keep required wind pushing temperature value; Simultaneously, the variation of the static pressure of this place's air (air-supply) that pressure fan (6) can be sensed according to air pressure difference sensor (8), the ability of regulating pressure fan (6) automatically according to certain control algolithm is to keep required air-supply static pressure.The return air in each room is pooled to return air house steward (15) after via return air arm (14) separately, is led by return air house steward (15) and gets back to air-treatment case (16).

Claims

A kind of airduct type residential central air-that has vav terminal, it is characterized in that direct expansion formula air-conditioning coil pipe, pressure fan, vav terminal, new wind control valve and return air control valve, air filtration and purification apparatus, airduct that it comprises outdoor unit, is connected by refrigerant line with outdoor unit; Wherein, new wind control valve, return air control valve, air filtration and purification apparatus, air-conditioning coil pipe and pressure fan all are installed in the air-treatment case; Return air control valve, new wind control valve lay respectively at the junction of return air house steward, fresh wind tube and air-treatment case; Along air supply direction, before the air-conditioning coil pipe, air filtration and purification apparatus is installed, behind the air-conditioning coil pipe, pressure fan is installed; The outlet of pressure fan connects the header pipe; Air temperature sensor and air pressure difference sensor are installed in the header pipe successively; Each blowpipe to each air-conditioned room air-supply is connected with the header pipe, and on each blowpipe vav terminal is installed.