CN1314565A - Method and device for mixing wind and anti-freezing of ventilator units - Google Patents
Method and device for mixing wind and anti-freezing of ventilator units Download PDFInfo
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- CN1314565A CN1314565A CN 01110637 CN01110637A CN1314565A CN 1314565 A CN1314565 A CN 1314565A CN 01110637 CN01110637 CN 01110637 CN 01110637 A CN01110637 A CN 01110637A CN 1314565 A CN1314565 A CN 1314565A
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- blower fan
- air
- freezing
- wind
- fan group
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- 238000007710 freezing Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 18
- 230000008014 freezing Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000002528 anti-freeze Effects 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 5
- 238000013016 damping Methods 0.000 description 4
- 230000009172 bursting Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 206010060904 Freezing phenomenon Diseases 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000012857 repacking Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The present invention relates to the structure and anti-freezing method of ventilator units in air conditioner and features that one wind mixing loop with wind valve is set between the wind outlet channel and the wind inlet channel and heated air is utilized to preheat inlet air at low temperature, raise the temperature of air flow through coiler and the temperature of water inside the coiler and prevent freezing. Compared with available electric air preheating method, the method and device of antifreezing of ventilator unit has greatly lowered operation cost. It addition, the present invention makes it easy to calculate the regulating water amount of heating coiler and the design of controller.
Description
The invention belongs to a kind of Air Regulation ﹠ Ventilation equipment, a kind of new blower fan group of particularly using in the air-conditioning system.
New blower fan group is the indispensable equipment of employed central air-conditioning system in industry and the civil buildings.Be to be used for obtaining fresh air (below be referred to as new wind), and it carried out hot wet process, by pipeline new wind is delivered to indoor device then according to certain requirement from outdoor.It is responsible for providing necessary fresh air on people's physiology, and bears the hot humidity load of part air-conditioning.From present building situation, nearly all heavy construction all is equipped with new blower fan group, and in the future that can predict, new blower fan group will be an indispensable part in most large and medium-sized air conditioning systems.
Because outside air temperature often changes, and the air themperature of sending into the room wishes to maintain in a certain temperature range usually, therefore newly the blower fan group normally according to the water yield of required wind pushing temperature adjusting heat(ing) coil.
At north cold area, the problem that present new blower fan group ubiquity easily is damaged by frost winter.Promptly when winter, outdoor temperature was low, be used to add hot-water coil pipe in the new blower fan group of hot-air often by bursting by freezing.Reason is that the water in the coil pipe can not be evenly distributed in each passage usually, when especially relatively poor or water is dirtier when water quality, more be easy to generate clogging, cause water flow velocity reduction in the pipe, water congeals into ice when the low excessively inlet air of temperature will make during through these loops, volume increases, and bursts coil pipe.
Antifreeze problem to new blower fan group in the prior art has following four kinds of solutions usually: the one, and keep the backwater of coil pipe to be not less than certain level, promptly when the return water temperature of coil pipe is lower than a certain temperature, just no longer reduce the water yield of coil pipe.The deficiency of this kind scheme is still the bursting by freezing phenomenon can occur when coil circuit obstruction or assignment of traffic inequality (this is the phenomenon that air-conditioning system often occurs); The 2nd, the temperature of measurement coil pipe tube wall just no longer reduces the water yield of coil pipe when tube wall temperature is lower than a certain value.This method is difficult to determine that the tube wall temperature of which root coil pipe is minimum, can only rule of thumb determine, still the bursting by freezing phenomenon can not occur when the tube wall of being surveyed is not temperature minimum point; The 3rd, adopt electric heating (or other heating) mode with air preheat, make its temperature be higher than a certain setting value, this kind method needs bigger capacitance, and operating cost is also very high, is difficult to apply; The 4th, adopt the multifunctional pump mode, make the water yield of the coil pipe of flowing through bigger, have only less temperature drop when carrying out heat exchange with air.But needing increases investment, and the control algolithm complexity, also seldom is used in real system.
Deficiency and defective at the prior art existence, purpose of the present invention and task provide a kind of mixing wind and anti-freezing of ventilator units method and device thereof, make it can not only thoroughly solve the antifreeze problem of new blower fan group coil pipe in winter, and have that operating cost is low, the water yield of heat(ing) coil regulates the simple more advantage of algorithm.
Purpose of the present invention and task are achieved by the following technical solution: a kind of method of mixing wind and anti-freezing of ventilator units, it is characterized in that the part air that new blower fan group was heated draws the air intlet section that is back to new blower fan group from the place ahead of blower fan outlet, makes it mix with the Cryogenic air that enters new blower fan group.
Adopt the device of a kind of mixing wind and anti-freezing of ventilator units of said method, it is mainly by air inlet duct, the heat(ing) coil, blower fan and the air delivery duct that are placed in the new blower fan group casing are formed, it is characterized in that between air inlet duct and air delivery duct, being provided with the mixed wind loop of a band air-valve, the air intlet in this loop is arranged on the place ahead of blower fan outlet, and its outlet is arranged on the air intlet section of new blower fan group.Like this, cross when low when outdoor temperature, the hot-air after the part heating just can mix with the intake air of low temperature by mixing the wind loop, makes the air themperature raising of the coil pipe of flowing through, and prevents that the water temperature in the coil pipe is low excessively, thereby reaches antifreeze purpose.
Fig. 1 represents that the air inlet and outlet in mixed wind loop are directly installed on the situation on the new blower fan group casing.
Fig. 2 represents that the air intlet that mixes the wind loop is arranged on the air delivery duct, and its outlet is arranged on the casing of new blower fan group.
Fig. 3 represents that the air intlet that mixes the wind loop is arranged on the casing of new blower fan group, and its outlet is arranged on the air inlet duct.
Fig. 4 represents that the air intlet that mixes the wind loop is arranged on the air delivery duct, and its outlet is arranged on the air inlet duct.
Fig. 5 represents to mix the situation that the wind loop is set directly at box house.
Fig. 6 represents to have the situation that the air intlet in its mixed wind loop of new blower fan group of damping device is provided with.
Among the figure: 1-air inlet duct 2-heat(ing) coil two grades of blower fans of 3-high/low speed or frequency conversion fan 4-coil pipe advances,
The new blower fan group of outlet pipe 5-casing 6-air delivery duct 7-mixes the air outlet slit 11-damping device that wind loop 8-air-valve 9-mixes the mixed wind loop of air intlet 10-in wind loop
Describe principle of the present invention, concrete structure, the course of work and preferred forms in detail below in conjunction with accompanying drawing:
Means to prevent freezing of the present invention is that the part air that new blower fan group heated is drawn the air intlet section that is back to new blower fan group from the place ahead of blower fan outlet, and it is mixed with the Cryogenic air that enters new blower fan group.Promptly come the intake air of preheating low temperature, prevent that by the flow through air themperature of coil pipe of raising the water temperature in the coil pipe is low excessively, to reach antifreeze purpose with the hot-air that heated.The specific embodiments of device of the present invention is the mixed wind loop 7 that a band air-valve 8 is set between the air inlet duct 1 of new blower fan group and air delivery duct 6, the air intlet 9 in this loop is arranged on the place ahead (be made as new wind flow direction before) of blower fan outlet, and its outlet is arranged on the air intlet section of new blower fan group.
For air output is remained unchanged substantially, the blower fan 3 of new blower fan group can adopt two grades of blower fans of high/low speed or frequency conversion fan.When outdoor temperature just often, be arranged on the air-valve 8 that mixes in the wind loop and close, this loop is obstructed, blower fan moves with low or first gear.Cross when low when outdoor temperature, air-valve 8 is opened, and mixes wind loop 7 and opens, and blower fan 3 is with the top gear operation, and a part of hot-air mixes with the Cryogenic air that enters new blower fan group by mixing wind loop stream to the rear of heat(ing) coil 2.
Concrete design and repacking can be carried out according to use and installation situation in above-mentioned mixed wind loop 7, following several different embodiment is generally arranged: for winter outdoor temperature than the new blower fan group of cryogenic region, can be when manufacturing and designing mixing the casing outside or inner (as Fig. 1, shown in Figure 5) that the wind loop is directly installed on new blower fan group, as parts of new blower fan group; Also can carry out the scene repacking on the basis of common new blower fan group, the air intlet that mixes the wind loop is connected with the air delivery duct, its outlet is connected (as Fig. 2) with the casing of new blower fan group; The air intlet that perhaps will mix the wind loop is connected with casing, and its outlet is connected (as Fig. 3) with air inlet duct; Also the air intlet that mixes the wind loop can be connected with the air delivery duct, its outlet is connected (as Fig. 4) with air inlet duct.For the new blower fan group that has damping device, produce knot mist phenomenon in order to prevent to mix wind, (as Fig. 6) is advisable in the back that the air intlet 9 in described mixed wind loop 7 should be arranged on damping device 11.
The present invention compared with prior art has the following advantages and beneficial effect: the method and device can not only thoroughly be separated The antifreeze problem of new blower fan group coil pipe in winter of determining, and compare than electrothermal method preheated air, its operating cost can fall greatly Low, simultaneously when regulating algorithm and CONTROLLER DESIGN, the water yield of establishment heat(ing) coil do not need to consider again that the antifreeze of coil pipe ask Topic makes the water yield of heat(ing) coil regulate algorithm and controller's design and becomes and be more prone to and simple.
Claims (6)
1, a kind of method of mixing wind and anti-freezing of ventilator units is characterized in that the part air that new blower fan group was heated draws the air intlet section that is back to new blower fan group from the place ahead of blower fan outlet, makes it mix with the Cryogenic air that enters new blower fan group.
2, adopt a kind of mixing wind and anti-freezing of ventilator units device of method according to claim 1, it is mainly by air inlet duct, the heat(ing) coil, blower fan and the air delivery duct that are placed in the new blower fan group casing are formed, it is characterized in that between air inlet duct and air delivery duct, being provided with the mixed wind loop of a band air-valve, the air intlet in this loop is arranged on the place ahead of blower fan outlet, and its outlet is arranged on the air intlet section of new blower fan group.
3,, it is characterized in that described blower fan adopts frequency conversion fan according to the described a kind of mixing wind and anti-freezing of ventilator units device of claim 2.
4,, it is characterized in that described blower fan adopts two grades of blower fans of high/low speed according to the described a kind of mixing wind and anti-freezing of ventilator units device of claim 2.
5, require 2,3 or 4 described a kind of mixing wind and anti-freezing of ventilator units devices according to profit, it is characterized in that described mixed wind loop is arranged on the outside of new blower fan group casing.
6,, it is characterized in that described mixed wind loop is arranged on the inside of new blower fan group casing according to claim 2,3 or 4 described a kind of mixing wind and anti-freezing of ventilator units devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01110637 CN1123742C (en) | 2001-04-13 | 2001-04-13 | Method and device for mixing wind and anti-freezing of ventilator units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01110637 CN1123742C (en) | 2001-04-13 | 2001-04-13 | Method and device for mixing wind and anti-freezing of ventilator units |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1314565A true CN1314565A (en) | 2001-09-26 |
| CN1123742C CN1123742C (en) | 2003-10-08 |
Family
ID=4658720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01110637 Expired - Fee Related CN1123742C (en) | 2001-04-13 | 2001-04-13 | Method and device for mixing wind and anti-freezing of ventilator units |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1123742C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629741A (en) * | 2012-08-27 | 2014-03-12 | 比亚迪股份有限公司 | Heating air conditioner system, heating method and automobile |
| CN103912932A (en) * | 2014-03-03 | 2014-07-09 | 永升建设集团有限公司 | Anti-freezing construction method of ceiling fresh air unit in severe cold area |
| CN107651154A (en) * | 2017-09-20 | 2018-02-02 | 珠海格力电器股份有限公司 | Air conditioner |
| 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 |
| WO2019110628A1 (en) * | 2017-12-07 | 2019-06-13 | Starklab | System and method for cooling a gas stream by means of an evaporator |
| CN110260500A (en) * | 2019-06-18 | 2019-09-20 | 兰舍通风系统有限公司 | The frost protection air mixing device of fresh air host |
| CN114838413A (en) * | 2022-03-04 | 2022-08-02 | 青岛海尔空调器有限总公司 | Control method and device for air conditioner and air conditioner |
-
2001
- 2001-04-13 CN CN 01110637 patent/CN1123742C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629741A (en) * | 2012-08-27 | 2014-03-12 | 比亚迪股份有限公司 | Heating air conditioner system, heating method and automobile |
| CN103912932A (en) * | 2014-03-03 | 2014-07-09 | 永升建设集团有限公司 | Anti-freezing construction method of ceiling fresh air unit in severe cold area |
| CN107651154A (en) * | 2017-09-20 | 2018-02-02 | 珠海格力电器股份有限公司 | Air conditioner |
| WO2019110628A1 (en) * | 2017-12-07 | 2019-06-13 | Starklab | System and method for cooling a gas stream by means of an evaporator |
| FR3074889A1 (en) * | 2017-12-07 | 2019-06-14 | Starklab | SYSTEM AND METHOD FOR COOLING A GAS STREAM USING A EVAPORATOR |
| 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 |
| CN110260500A (en) * | 2019-06-18 | 2019-09-20 | 兰舍通风系统有限公司 | The frost protection air mixing device of fresh air host |
| CN110260500B (en) * | 2019-06-18 | 2024-05-28 | 兰舍通风系统有限公司 | Frost-proof air mixing device of fresh air host |
| CN114838413A (en) * | 2022-03-04 | 2022-08-02 | 青岛海尔空调器有限总公司 | Control method and device for air conditioner and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1123742C (en) | 2003-10-08 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 1110637.9 of the invention patents in this issue as a notice of authorization, and at the same time corresponding to the 1219469.7 utility model patent to be given up, and in the 19 volume of the 41 issue of the new type of communique on the patent right to abandon the announcement. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031008 |