CN202747541U - Fresh air handling unit anti-freezing device - Google Patents
Fresh air handling unit anti-freezing device Download PDFInfo
- Publication number
- CN202747541U CN202747541U CN 201220334341 CN201220334341U CN202747541U CN 202747541 U CN202747541 U CN 202747541U CN 201220334341 CN201220334341 CN 201220334341 CN 201220334341 U CN201220334341 U CN 201220334341U CN 202747541 U CN202747541 U CN 202747541U
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- Prior art keywords
- air
- temperature sensor
- valve
- air inlet
- access door
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- Expired - Lifetime
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Abstract
The utility model discloses a fresh air handling unit anti-freezing device which comprises an air inlet, primary filters and a heating coil pipe. The device is provided with a first overhauling door, the primary filters, the heating oil pipe, a temperature sensor, a second overhauling door, an air supply unit and a third overhauling door sequentially from left to right; the air inlet is arranged above the first overhauling door, and an electric regulating air valve is arranged at the air inlet; an air outlet is arranged above the third overhauling door; an electric regulating hot water valve is arranged below the heating coil pipe; the electric regulating air valve, the electric regulating hot water valve, the temperature sensor and a motor in the air supply unit are respectively communicated with a local control cabinet in sequence; and the local control cabinet is communicated with a program control chamber. The fresh air handling unit anti-freezing device provided by the utility model is convenient to install, is concise in system, and is safe and reliable; an air outlet section of the heating coil pipe is provided with the temperature sensor; when the temperature sensor detects that the air outlet temperature is lower than a set temperature, the local control cabinet give a sound-light alarm, and meanwhile, an alarm signal is sent to the program control chamber; and the safety and normal operation of a fresh air handling unit is ensured.
Description
Technical field:
The utility model relates to new blower fan group defroster.
Background technology:
New blower fan group provides a kind of apparatus of air conditioning of fresh air.Its operation principle is: indoor through delivering to by blower fan after filtration, dehumidifying or the processing such as humidification, cooling or intensification at outdoor extraction fresh air.New blower fan group is the subject matter that affects its operation the antifreeze of cold district.Winter the northern area of China, traditional medium that ventilation and air conditioning system heats new wind is hot water or steam, when outside air temperature is crossed when low, perhaps heat heat medium temperature excessively low, new blower fan group internal temperature occurs and be lower than 0 ℃, water freezing in the heat(ing) coil is split up heat(ing) coil, causes new blower fan group normally to move.At present domestic new blower fan group anti-frost protection is on the heat(ing) coil surface one frost prevention switch is installed, and crosses when low when coil temperature, and the frost prevention switch action stops new blower fan group operation, prevents coil frost broken.But the capillary of frost prevention switch is very easily damaged when mounted, and after the simultaneously frost prevention switch action, new blower fan group heat(ing) coil leaving air temp is crossed when hanging down, and can not transmit alarm signal to on-site control and program control chamber.
Summary of the invention;
The purpose of this utility model will provide a kind of new blower fan group defroster exactly, and it can overcome the above problem that existing equipment exists.The purpose of this utility model is to realize like this, new blower fan group defroster, comprise air inlet, primarily efficient filter, heat(ing) coil, it is characterized in that: in this device, be disposed with from left to right access door, primarily efficient filter, heat(ing) coil, temperature sensor, access door, air-supply unit, access door; Above first access door, be provided with air inlet, be provided with the motorized adjustment air-valve at the air inlet place; In the end an access door top is provided with air outlet; Described heat(ing) coil below is provided with the motorized adjustment hot water valve; Motor in described motorized adjustment air-valve, motorized adjustment hot water valve, temperature sensor and the air-supply unit communicates with on-site control respectively successively; Described on-site control communicates with program control chamber.The utility model is easy for installation, and system is succinct, and is safe and reliable.At heat(ing) coil wind outlet section set temperature sensor; When temperature sensor detected leaving air temp and is lower than design temperature, on-site control sent sound and light alarm, simultaneously alarm signal is sent to program control chamber.The motorized adjustment air-valve cuts out, and pressure fan is out of service simultaneously.Through site inspection, after dealing with problems, the manual reset operation guarantees that the safety of new blower fan group is normally moved.
Description of drawings;
Fig. 1 is the utility model device schematic diagram;
1. motorized adjustment air-valve, 2. air inlet, 3. primarily efficient filter, 4. heat(ing) coil, 5. temperature sensor, 6. air-supply unit, 7. air outlet, 8. motorized adjustment hot water valve, 9. on-site control, 10. program control chamber.
The specific embodiment: the utility model is described in further detail below in conjunction with accompanying drawing;
New blower fan group defroster, comprise air inlet 2, primarily efficient filter 3, heat(ing) coil 4, it is characterized in that: in this device, be disposed with from left to right access door, primarily efficient filter 3, heat(ing) coil 4, temperature sensor 5, access door, air-supply unit 6, access door; Be provided with air inlet 2 above first access door, 2 places are provided with motorized adjustment air-valve 1 at air inlet; In the end an access door top is provided with air outlet 7; Described heat(ing) coil 4 belows are provided with motorized adjustment hot water valve 8; Motor in described motorized adjustment air-valve 1, motorized adjustment hot water valve 8, temperature sensor 5 and the air-supply unit 6 communicates with on-site control 9 respectively successively; Described on-site control 9 communicates with program control chamber 10.During implementation, be provided with the motorized adjustment air-valve at the air inlet place, be provided with temperature sensor at the heat(ing) coil wind outlet section; When temperature sensor detected leaving air temp and is lower than design temperature, on-site control sent sound and light alarm, simultaneously alarm signal is sent to program control chamber.The motorized adjustment air-valve cuts out, and the unit of blowing simultaneously is out of service.Site inspection, after dealing with problems, the manual reset operation guarantees that the safety of new blower fan group is normally moved.
Claims (1)
1. new blower fan group defroster, comprise air inlet (2), primarily efficient filter (3), heat(ing) coil (4), it is characterized in that: in this device, be disposed with from left to right access door, primarily efficient filter (3), heat(ing) coil (4), temperature sensor (5), access door, air-supply unit (6), access door; Above first access door, be provided with air inlet (2), locate to be provided with motorized adjustment air-valve (1) at air inlet (2); In the end an access door top is provided with air outlet (7); Described heat(ing) coil (4) below is provided with motorized adjustment hot water valve (8); Motor in described motorized adjustment air-valve (1), motorized adjustment hot water valve (8), temperature sensor (5) and the air-supply unit (6) communicates with on-site control (9) respectively successively; Described on-site control (9) communicates with program control chamber (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220334341 CN202747541U (en) | 2012-07-11 | 2012-07-11 | Fresh air handling unit anti-freezing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220334341 CN202747541U (en) | 2012-07-11 | 2012-07-11 | Fresh air handling unit anti-freezing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202747541U true CN202747541U (en) | 2013-02-20 |
Family
ID=47706927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220334341 Expired - Lifetime CN202747541U (en) | 2012-07-11 | 2012-07-11 | Fresh air handling unit anti-freezing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202747541U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676815A (en) * | 2015-03-06 | 2015-06-03 | 安明 | Haze-preventing environment-friendly type fresh air ventilator unit and haze-preventing method |
| 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 |
-
2012
- 2012-07-11 CN CN 201220334341 patent/CN202747541U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676815A (en) * | 2015-03-06 | 2015-06-03 | 安明 | Haze-preventing environment-friendly type fresh air ventilator unit and haze-preventing method |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |
|
| CX01 | Expiry of patent term |