CN201401884Y - Self-adapted antifreeze fresh air unit - Google Patents
Self-adapted antifreeze fresh air unit Download PDFInfo
- Publication number
- CN201401884Y CN201401884Y CN2009201473793U CN200920147379U CN201401884Y CN 201401884 Y CN201401884 Y CN 201401884Y CN 2009201473793 U CN2009201473793 U CN 2009201473793U CN 200920147379 U CN200920147379 U CN 200920147379U CN 201401884 Y CN201401884 Y CN 201401884Y
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- heat exchanger
- antifreeze
- blower fan
- fan group
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Abstract
The utility model discloses a self-adapted antifreeze fresh air unit; a coiled tube and an air blower are sequentially arranged between an inlet and an outlet of the unit; and a heat exchanger is alsoarranged between the inlet of the unit and the coiled tube. When being operated in winter, as the heat exchanger is also arranged between the inlet of the unit and the coiled tube, the self-adapted antifreeze fresh air unit transmits the heating output of the coiled tube to the new fresh air at the inlet of the unit by the heat exchanger, so as to carry out pre-heating to the fresh air and lead the temperature thereof to be higher than 0 DEG C, thus being capable of achieving the antifreeze purpose without the need of additional energy, saving energy sources and reducing the operating cost ofthe unit in winter.
Description
Technical field
The utility model relates to the air-conditioning system field, is the antifreeze new blower fan group of a kind of self adaptation specifically.
Background technology
In central air conditioner system, new blower fan group is to be responsible for ensureing the air conditioner end equipment of indoor air quality and comfort level constantly to indoor conveying fresh air.New blower fan group is also being born summer simultaneously to the task of giving new wind heating, humidification in new wind cooling, dehumidifying, winter.
As shown in Figure 1, in the new blower fan group of existing conventional,, all realize usually by same group of coil pipe 2 in the unit to cooling, dehumidifying and the heat treated of air.In summer,,, can realize cooling and dehumidifying to new wind by the effect of coil pipe 2 by the chilled water of concentrating low-temperature receiver to provide; In winter, then the hot water that is provided by central heat source carries out heat treated by 2 pairs of new wind of coil pipe.Since summer, winter shared coil pipe 2, therefore coil pipe 2 is pressed the bigger summer condition design of Capability Requirement usually, and in the winter time the time, the heating efficiency of coil pipe 2 is just serious superfluous, need control heating load by reducing hot water flow, the problem that causes thus is, hot water might be lower than 0 ℃ through the leaving water temperature behind the coil pipe 2, thus cause coil pipe 2 in the winter time run duration by bursting by freezing.Therefore, have the new blower fan group of using at cold district now, the operation freeze injury occurs in order to prevent coil pipe, usually need new wind be heated to earlier more than 0 ℃ with electric heater 6, such antifreezing measures need to consume a large amount of secondary energy sources-electric energy, cause severe energy waste.
The utility model content
The utility model purpose is, provides a kind of self adaptation antifreeze new blower fan group, utilizes the heat of coil pipe self, prevents the coil pipe bursting by freezing effectively, and energy savings reduces use cost.
For solving above technical problem, the utility model provides a kind of self adaptation antifreeze new blower fan group, is provided with coil pipe, pressure fan successively between unit import and outlet, also is provided with heat exchanger between unit import and coil pipe.In the winter time, flow into hot water in the coil pipe, heat exchanger utilizes the heating load of unit inner coil pipe itself, preheats newly going into new wind.Newly go into new wind when this heat exchanger, and between the new wind after the coil pipe heating, carry out exchange heat, make and newly go into new wind and be heated to more than the antifreeze safe temperature of coil pipe, can effectively prevent coil pipe run duration generation bursting by freezing in the winter time.In summer, coil pipe flows into cold water, carries out cooling and dehumidifying to newly going into new wind.
Preferably, the antifreeze new blower fan group of described self adaptation also comprises:
The air channel transfer valve is arranged between the outlet and described pressure fan of described heat exchanger, be used for changing new distinguished and admirable to; When described air channel transfer valve is positioned at closure state, make new wind after described heat exchanger and described coil pipe, flow to described pressure fan; When described air channel transfer valve is positioned at opening, make new wind directly flow to described pressure fan;
The bracket panel pipe is arranged between the outlet of described air channel transfer valve and unit.In transition season and summer, when new wind does not need to heat, can carry out new distinguished and admirable with transfer valve to switching, make new wind carry out the antifreeze processing of self adaptation without heat exchanger, and switch to the air channel of bracket panel pipe place one side, new wind cools off, dehumidification treatments to newly going into by the bracket panel pipe, to reduce the machine internal loss of new blower fan group, reaches the energy-conservation purpose of fan operation.
Preferably, described antifreeze new blower fan group also is provided with automatic control unit, comprising:
Temperature sensor is arranged on the unit outlet, is used for detecting and output wind pushing temperature value signal;
Controller is used to receive the wind pushing temperature value signal, wind pushing temperature value and preset value compared, and greater than preset value the time, output forward control signal; Less than preset value the time, the output reverse control signal;
Main flow control valve is arranged on the described coil pipe, according to the direction and the big or small flow of regulating described coil pipe of described control signal;
The secondary flow control valve is arranged on the described bracket panel pipe, according to the direction and the big or small flow of regulating described bracket panel pipe of described control signal.By automaton is set, the variation of new wind air intake operating mode be adjusted and be adapted to new blower fan group can automatically according to the setting to new wind leaving air temp, guarantees that antifreezing effect is not affected.
Preferably, also be provided with filter in unit import department.
Preferably, described antifreeze new blower fan group inside also is provided with surface cooler.
Preferably, described antifreeze new blower fan group inside also is provided with humidifier.
Preferably, described heat exchanger is a plate type heat exchanger.
Preferably, described heat exchanger is rotary-type sensible heat exchanger or rotary-type air-to-air total heat exchanger.
Preferably, described heat exchanger is an intermediate medium formula heat exchanger.
Preferably, described heat exchanger is a heat-pipe heat exchanger.
Compared with prior art, the antifreeze new blower fan group of the self adaptation that the utility model provides, when moving in the winter time, owing between unit import and coil pipe, be provided with heat exchanger, newly go into new wind with what the heating load of coil pipe itself reached unit import department by heat exchanger, new wind is preheated, make its temperature be higher than 0 ℃, thereby need not consume extra energy, can reach antifreeze purpose, energy savings reduces unit operating cost in the winter time.
In addition, as a kind of optimized technical scheme, the utility model also is provided with bracket panel pipe and air channel transfer valve, unit is when summer operation, by the air channel transfer valve, make and newly go into of the antifreeze processing of new wind, and directly flow to pressure fan and bracket panel pipe without heat exchanger, to reduce the machine internal loss of new blower fan group, reach the energy-conservation purpose of unit operation.
Description of drawings
Fig. 1 is the structural representation of existing antifreeze new blower fan group;
Fig. 2 is the structural representation of the utility model first embodiment;
Fig. 3 is the structural representation of the utility model second embodiment;
Fig. 4 is the structural representation of the utility model the 3rd embodiment;
Fig. 5 is the structural representation of the utility model the 4th embodiment.
Reference numeral is as follows:
1-heat exchanger 2-coil pipe
3-air channel transfer valve 4-pressure fan
5-filter 6-electric heater
The specific embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
Embodiment one
See also accompanying drawing 2, in the present embodiment, be provided with coil pipe 2, pressure fan 4 successively between unit import and outlet, be provided with heat exchanger 1 between unit import and coil pipe 2, this heat exchanger is a plate type heat exchanger.
Described blower fan also is provided with air channel transfer valve 3, is arranged between the outlet and described pressure fan of described heat exchanger, be used for changing new distinguished and admirable to; When unit moves in the winter time, when described air channel transfer valve 3 is positioned at closure state, make new wind after described heat exchanger 1 and described coil pipe 2, flow to described pressure fan; When described air channel transfer valve 3 is positioned at opening, make new wind directly flow to described pressure fan; Described unit also comprises bracket panel pipe (not shown), is arranged between the outlet of described air channel transfer valve 3 and unit.
Described unit also is provided with the automatic control unit (not shown), comprises temperature sensor, and it is arranged on the unit outlet, is used for detecting and output wind pushing temperature value signal; Controller is used to receive the wind pushing temperature value signal, wind pushing temperature value and preset value compared, and greater than preset value the time, output forward control signal; Less than preset value the time, the output reverse control signal; Main flow control valve is arranged on the described coil pipe 2, according to the direction and the big or small flow of regulating described coil pipe 2 of described control signal; The secondary flow control valve is arranged on the described bracket panel pipe, according to the direction and the big or small flow of regulating described bracket panel pipe of described control signal.
Described unit also comprises filter 5, is arranged on unit import department, filters newly going into new wind, purifies new wind.
Described blower fan inside also is provided with surface cooler (not shown) and humidifier (not shown).
The course of work of the antifreeze new blower fan group of the self adaptation of present embodiment is as follows:
When moving in the winter time, flow into hot water in the coil pipe 2, air channel transfer valve 3 is in closure state, outdoor new wind is flowed into by the unit import, when flowing through heat exchanger 1, carry out exchange heat, thereby utilize the heating load of coil pipe 2 self with new wind after coil pipe 2 heating, make and newly go into new wind and be heated on the antifreeze safe temperature of coil pipe 2, make coil pipe 2 not be damaged by frost.In unit running process, temperature sensor in the automatic control unit detects and transmits the wind pushing temperature value signal of blower fan, after controller receives this signal, compare with the wind pushing temperature value of presetting, when the time greater than preset value, output forward control signal, after main flow control valve is received the forward control signal, regulate the aperture of self, reduce the hot water flow of coil pipe, to reduce leaving air temp, make it reach preset value; When less than preset value, the output reverse control signal after main flow control valve is received reverse control signal, is regulated the aperture of self, adds the hot water flow of big coils, with the rising leaving air temp, makes it reach preset value.
When summer operation, flow into cold water in the bracket panel pipe, open air channel transfer valve 3, outdoor new wind is without heat exchanger 1 and coil pipe 2, and directly flows to pressure fan 4 by import, cools off, dehumidify through the bracket panel pipe again, exports from unit and sends.This mode can reduce the machine internal loss of new blower fan group, reaches the energy-conservation purpose of fan operation.In the fan operation process, temperature sensor in the automatic control unit detects and transmits the wind pushing temperature value signal of blower fan, after controller receives this signal, compare with the wind pushing temperature value of presetting, when the time greater than preset value, output forward control signal, after the secondary flow control valve is received the forward control signal, regulate the aperture of self, the cold water flow of rising bracket panel pipe, to reduce leaving air temp, make it reach preset value; When less than preset value, the output reverse control signal after the secondary flow control valve is received reverse control signal, is regulated the aperture of self, reduces the cold water flow of bracket panel pipe, with the rising leaving air temp, makes it reach preset value.
Embodiment two
Referring to accompanying drawing 3, the difference of present embodiment and embodiment one is that the heat exchanger in the present embodiment is a thermal wheel, and all the other structures and the course of work are all identical with embodiment one, repeat no more herein.
Embodiment three
Referring to accompanying drawing 4, in the present embodiment, between unit import and outlet, be provided with coil pipe 2, pressure fan 4 successively, between unit import and coil pipe 2, be provided with heat exchanger 1, this heat exchanger 1 is an intermediate medium formula heat exchanger.
Described unit also comprises filter 5, and described filter 5 is arranged on unit import department, filters newly going into new wind, purifies new wind.
Described unit inside also is provided with surface cooler and humidifier.
The course of work of the antifreeze new blower fan group of the self adaptation of present embodiment is as follows: when moving in the winter time, flow into hot water in the coil pipe 2, outdoor new wind is flowed into by the unit import, when flowing through heat exchanger 1, carry out exchange heat with the new wind after coil pipe 2 heating, thereby utilize the heating load of coil pipe 2 self, make and newly go into new wind and be heated on the antifreeze safe temperature of coil pipe 2, make coil pipe 2 not be damaged by frost.
When summer operation, flow into cold water in the coil pipe 2, outdoor new distinguished and admirable through heat exchanger 1 and coil pipe 2,2 pairs of outdoor new wind of coil pipe are sent by pressure fan after cooling off, dehumidifying.
Embodiment four
Referring to accompanying drawing 5, the difference part of present embodiment and embodiment three is that the heat exchanger in the present embodiment is a heat-pipe heat exchanger, and all the other structures are all identical with embodiment three with the course of work, repeat no more herein.
Only be preferred implementation of the present utility model below, should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection domain of the present utility model should be as the criterion with claim institute restricted portion.For those skilled in the art, in not breaking away from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1, the antifreeze new blower fan group of a kind of self adaptation is provided with coil pipe, pressure fan successively between unit import and outlet, it is characterized in that, also is provided with heat exchanger between unit import and coil pipe.
2, antifreeze new blower fan group as claimed in claim 1 is characterized in that, also comprises:
The air channel transfer valve is arranged between the outlet and described pressure fan of described heat exchanger, be used for changing new distinguished and admirable to; When described air channel transfer valve is positioned at closure state, make new wind after described heat exchanger and described coil pipe, flow to described pressure fan; When described air channel transfer valve is positioned at opening, make new wind directly flow to described pressure fan;
The bracket panel pipe is arranged between the outlet of described air channel transfer valve and unit.
3, antifreeze new blower fan group as claimed in claim 2 is characterized in that, also is provided with automatic control unit, comprising:
Temperature sensor is arranged on the unit outlet, is used for detecting and output wind pushing temperature value signal;
Controller is used to receive the wind pushing temperature value signal, wind pushing temperature value and preset value compared, and greater than preset value the time, output forward control signal; Less than preset value the time, the output reverse control signal;
Main flow control valve is arranged on the described coil pipe, according to the direction and the big or small flow of regulating described master pipe of described control signal;
The secondary flow control valve is arranged on the described bracket panel pipe, according to the direction and the big or small flow of regulating described bracket panel pipe of described control signal.
4, antifreeze new blower fan group as claimed in claim 1 is characterized in that, also is provided with filter in unit import department.
5, antifreeze new blower fan group as claimed in claim 1 is characterized in that, described antifreeze new blower fan group inside also is provided with surface cooler.
6, antifreeze new blower fan group as claimed in claim 1 is characterized in that, described antifreeze new blower fan group inside also is provided with humidifier.
7, as each described antifreeze new blower fan group of claim 1-6, it is characterized in that described heat exchanger is a plate type heat exchanger.
8, as each described antifreeze new blower fan group of claim 1-6, it is characterized in that described heat exchanger is rotary-type sensible heat exchanger or rotary-type air-to-air total heat exchanger.
9, as each described antifreeze new blower fan group of claim 1-6, it is characterized in that described heat exchanger is an intermediate medium formula heat exchanger.
10, as each described antifreeze new blower fan group of claim 1-6, it is characterized in that described heat exchanger is a heat-pipe heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201473793U CN201401884Y (en) | 2009-04-24 | 2009-04-24 | Self-adapted antifreeze fresh air unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201473793U CN201401884Y (en) | 2009-04-24 | 2009-04-24 | Self-adapted antifreeze fresh air unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201401884Y true CN201401884Y (en) | 2010-02-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201473793U Expired - Fee Related CN201401884Y (en) | 2009-04-24 | 2009-04-24 | Self-adapted antifreeze fresh air unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201401884Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388857A (en) * | 2013-08-19 | 2013-11-13 | 苏州惠林节能材料有限公司 | Heat pipe self-temperature returning preheat type heating fresh air handling unit |
| CN103398440A (en) * | 2013-08-19 | 2013-11-20 | 苏州惠林节能材料有限公司 | Self-temperature-recovery preheating heat supply fresh air unit |
| CN104728999A (en) * | 2013-12-23 | 2015-06-24 | 珠海格力电器股份有限公司 | Anti-freezing control method and device for heat exchanger of air conditioner |
| CN107062555A (en) * | 2017-05-11 | 2017-08-18 | 广东申菱环境系统股份有限公司 | A kind of Central air-conditioning unit preheating coil pipe winterization system and its control method |
| CN108954746A (en) * | 2018-08-10 | 2018-12-07 | 机械工业第六设计研究院有限公司 | Exposure degree formula fresh air preheating defroster |
| CN116007133A (en) * | 2022-12-20 | 2023-04-25 | 珠海格力电器股份有限公司 | Fresh air conditioner anti-freezing control method and device and fresh air conditioner |
-
2009
- 2009-04-24 CN CN2009201473793U patent/CN201401884Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388857A (en) * | 2013-08-19 | 2013-11-13 | 苏州惠林节能材料有限公司 | Heat pipe self-temperature returning preheat type heating fresh air handling unit |
| CN103398440A (en) * | 2013-08-19 | 2013-11-20 | 苏州惠林节能材料有限公司 | Self-temperature-recovery preheating heat supply fresh air unit |
| CN104728999A (en) * | 2013-12-23 | 2015-06-24 | 珠海格力电器股份有限公司 | Anti-freezing control method and device for heat exchanger of air conditioner |
| CN104728999B (en) * | 2013-12-23 | 2018-07-17 | 珠海格力电器股份有限公司 | anti-freezing control method and device for heat exchanger of air conditioner |
| CN107062555A (en) * | 2017-05-11 | 2017-08-18 | 广东申菱环境系统股份有限公司 | A kind of Central air-conditioning unit preheating coil pipe winterization system and its control method |
| CN108954746A (en) * | 2018-08-10 | 2018-12-07 | 机械工业第六设计研究院有限公司 | Exposure degree formula fresh air preheating defroster |
| CN116007133A (en) * | 2022-12-20 | 2023-04-25 | 珠海格力电器股份有限公司 | Fresh air conditioner anti-freezing control method and device and fresh air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGZHOU TONGFANG REFINE AIR-CONDITIONING CO., LT Free format text: FORMER NAME: GUANGZHOU TAHOOREFINE AIR CONDITION TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 511400, room 6, Shek Mo Ling Building, Xin Guang road, Panyu District new town, Guangzhou, Guangdong, 01 Patentee after: Guangzhou Tongfang Refine Air-Conditioning Co., Ltd. Address before: 511400 D 605B, international business incubator, Science City, Guangdong, Guangzhou Patentee before: Guangzhou TahooRefine Air Conditioning Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100210 Termination date: 20160424 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |