CN104456968A - Intelligent draught fan unloading, adjusting and controlling method - Google Patents
Intelligent draught fan unloading, adjusting and controlling method Download PDFInfo
- Publication number
- CN104456968A CN104456968A CN201410627466.4A CN201410627466A CN104456968A CN 104456968 A CN104456968 A CN 104456968A CN 201410627466 A CN201410627466 A CN 201410627466A CN 104456968 A CN104456968 A CN 104456968A
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- blower fan
- unloading
- pressure
- control
- draught fan
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Abstract
The invention discloses an intelligent draught fan unloading, adjusting and controlling method. The method includes the following steps of firstly, detecting the environment temperature, stopping the unloading function of a draught fan when the environment temperature is lower than an environment temperature protection point, and otherwise starting the unloading function of the draught fan; secondly, detecting the pressure of a heat pump system under the condition that the unloading function of the draught fan is started; thirdly, controlling a pressure relief pressure switch to act to stop protection when the pressure of the heat pump system exceeds the pressure relief pressure, and switching off a null line of the draught fan. By arranging the environment temperature protection point, the unloading of the draught fan is controlled through the combination of the environment temperature and the system pressure together, the unnecessary misoperation is reduced, and the unloading function of the unloading draught fan is more accurate; through the common use of multiple unloading modes, the universality and flexibility are improved in the use process, and the application range is wider. The intelligent draught fan unloading, adjusting and controlling method can be widely applied to the field of heat pump control.
Description
Technical field
The present invention relates to heat pump control field, especially a kind of intelligent blower fan unloading regulate and control method.
Background technology
When environment temperature height, the heat that heat pump provides is often what supply exceed demand, and longtime running can cause system pressure too high, in order to ensure system safety operation, needs to unload blower fan.
Teat pump boiler was by release pressure switch detection system pressure to blower fan unloading in the past, when system pressure exceed unload pressure pressure time, the action of release pressure switch disconnects protection, and when system pressure is lower than release pressure switch recovery value, release pressure switch closes; Such blower fan offload scheme belongs to Purely mechanical unloading, in use, there will be following problem:
1), mechanical operation is easily influenced by ambient temperature, occurs misoperation, makes unloading blower fan offloading functions inaccurate;
2), mechanical load versatility by force, does not use dumb, narrow application range.
Summary of the invention
In order to solve the problems of the technologies described above, the object of the invention is: a kind of intelligent blower fan unloading regulate and control method that can realize according to varying environment temperature is provided.
The technical solution adopted in the present invention is: a kind of intelligent blower fan unloading regulate and control method, comprises the following steps:
A, testing environment temperature, if environment temperature is protected a little lower than environment temperature, then close blower fan offloading functions; Otherwise open blower fan offloading functions;
B, under the condition of opening blower fan offloading functions, detect heat pump pressure;
If C heat pump pressure exceedes unload pressure pressure, then control the action of release pressure switch and disconnect protection, disconnect the zero line of blower fan.
Further, in described step C, control disconnection that release pressure switch directly controls blower fan zero line and be connected, when heat pump pressure exceed unload pressure pressure time, control release pressure switch and disconnect protection, directly the zero line of disconnection blower fan.
Further, in described step C, control release pressure switch by the disconnection of Control blower fan zero line be connected, when heat pump pressure exceed unload pressure pressure time, control release pressure switch action protection, disconnected the zero line of blower fan by Control.
Further, also include step D: when heat pump pressure is lower than release pressure switch recovery value, release pressure switch closes.
Further, in described step D, release pressure switch is directly communicated with blower fan zero line.
Further, in described step D, release pressure switch is communicated with blower fan zero line by Control.
The invention has the beneficial effects as follows: the present invention, by arranging environment temperature protection point, realizes combining environmental temperature and the unloading of system pressure co-controlling blower fan, decreases unnecessary maloperation, makes the offloading functions of unloading blower fan more accurate; And sharing by multiple unloading manner, add universal and flexibility during use, the scope of application is wider.
Accompanying drawing explanation
Fig. 1 is the flow chart of steps of the inventive method.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
With reference to Fig. 1, a kind of intelligent blower fan unloading regulate and control method, comprises the following steps:
A, testing environment temperature, if environment temperature is protected a little lower than environment temperature, then close blower fan offloading functions; Otherwise open blower fan offloading functions;
B, under the condition of opening blower fan offloading functions, detect heat pump pressure;
If C heat pump pressure exceedes unload pressure pressure, then control the action of release pressure switch and disconnect protection, disconnect the zero line of blower fan.
Above-mentioned environment temperature protection point experimentally draws, only has when environment temperature is protected a little higher than environment temperature, and simultaneity factor pressure exceedes when unloading pressure pressure, and the action of release pressure switch disconnects protection; When environment temperature is lower than environment temperature protection point, do not enable blower fan offloading functions.
Be further used as preferred embodiment, further, in described step C; control disconnection that release pressure switch directly controls blower fan zero line and be connected; when heat pump pressure exceed unload pressure pressure time, control release pressure switch and disconnect protection, directly the zero line of disconnection blower fan.
Be further used as preferred embodiment; in described step C, control release pressure switch by the disconnection of Control blower fan zero line be connected, when heat pump pressure exceed unload pressure pressure time; control release pressure switch action protection, disconnected the zero line of blower fan by Control.
Be further used as preferred embodiment, also include step D: when heat pump pressure is lower than release pressure switch recovery value, release pressure switch closes.
Be further used as preferred embodiment, in described step D, release pressure switch is directly communicated with blower fan zero line.
Be further used as preferred embodiment, in described step D, release pressure switch is communicated with blower fan zero line by Control.
More than that better enforcement of the present invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art can also make all equivalents or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent distortion or replacement are all included in the application's claim limited range.
Claims (6)
1. an intelligent blower fan unloading regulate and control method, is characterized in that: comprise the following steps:
A, testing environment temperature, if environment temperature is protected a little lower than environment temperature, then close blower fan offloading functions; Otherwise open blower fan offloading functions;
B, under the condition of opening blower fan offloading functions, detect heat pump pressure;
If C heat pump pressure exceedes unload pressure pressure, then control release pressure switch and disconnect protection, disconnect the zero line of blower fan.
2. one according to claim 1 intelligent blower fan unloading regulate and control method; it is characterized in that: in described step C; control disconnection that release pressure switch directly controls blower fan zero line and be connected; when heat pump pressure exceed unload pressure pressure time; control release pressure switch and disconnect protection, directly disconnect the zero line of blower fan.
3. one according to claim 1 intelligent blower fan unloading regulate and control method; it is characterized in that: in described step C; control release pressure switch by the disconnection of Control blower fan zero line be connected; when heat pump pressure exceed unload pressure pressure time; control release pressure switch action protection, disconnected the zero line of blower fan by Control.
4. the intelligent blower fan unloading of the one according to Claims 2 or 3 regulate and control method, it is characterized in that: also include step D: when heat pump pressure is lower than release pressure switch recovery value, release pressure switch closes.
5. one according to claim 1 intelligent blower fan unloading regulate and control method, it is characterized in that: in described step D, release pressure switch is directly communicated with blower fan zero line.
6. one according to claim 1 intelligent blower fan unloading regulate and control method, it is characterized in that: in described step D, release pressure switch is communicated with blower fan zero line by Control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410627466.4A CN104456968B (en) | 2014-11-06 | 2014-11-06 | A kind of intelligent blower fan unloading regulation and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410627466.4A CN104456968B (en) | 2014-11-06 | 2014-11-06 | A kind of intelligent blower fan unloading regulation and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104456968A true CN104456968A (en) | 2015-03-25 |
| CN104456968B CN104456968B (en) | 2017-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410627466.4A Active CN104456968B (en) | 2014-11-06 | 2014-11-06 | A kind of intelligent blower fan unloading regulation and control method |
Country Status (1)
| Country | Link |
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| CN (1) | CN104456968B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388925A (en) * | 2015-10-10 | 2016-03-09 | 广东芬尼克兹节能设备有限公司 | Draught fan unloading method and system based on system pressure signal |
| CN108775711A (en) * | 2018-05-28 | 2018-11-09 | 广东芬尼克兹节能设备有限公司 | A kind of high pressure unloading control method, system and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH05264107A (en) * | 1992-03-24 | 1993-10-12 | Mitsubishi Electric Corp | Air conditioner |
| JPH10122674A (en) * | 1996-10-18 | 1998-05-15 | Fujitsu General Ltd | Method for controlling air conditioner |
| CN2401854Y (en) * | 1999-11-05 | 2000-10-18 | 海尔集团公司 | Easy continuous starting air conditioner |
| KR20030040332A (en) * | 2003-04-30 | 2003-05-22 | 엘지전자 주식회사 | Operation controlling apparatus and its method for outdoor unit |
| CN2837745Y (en) * | 2005-09-10 | 2006-11-15 | 海尔集团公司 | Air conditioner with decompression protection mechanism |
| CN101220983A (en) * | 2007-01-09 | 2008-07-16 | 葛建民 | Forced heat-exchanging method of air source heat pump hot water units |
| CN101893310A (en) * | 2010-08-31 | 2010-11-24 | 四川长虹空调有限公司 | Control method for preventing overload of compressor under heating mode of heat pump air conditioner |
| CN102128529A (en) * | 2011-03-31 | 2011-07-20 | Tcl空调器(中山)有限公司 | Split air-source heat pump water heater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388925A (en) * | 2015-10-10 | 2016-03-09 | 广东芬尼克兹节能设备有限公司 | Draught fan unloading method and system based on system pressure signal |
| CN108775711A (en) * | 2018-05-28 | 2018-11-09 | 广东芬尼克兹节能设备有限公司 | A kind of high pressure unloading control method, system and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104456968B (en) | 2017-08-15 |
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