CN205156208U - Air conditioning system - Google Patents
Air conditioning system Download PDFInfo
- Publication number
- CN205156208U CN205156208U CN201520786562.3U CN201520786562U CN205156208U CN 205156208 U CN205156208 U CN 205156208U CN 201520786562 U CN201520786562 U CN 201520786562U CN 205156208 U CN205156208 U CN 205156208U
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- CN
- China
- Prior art keywords
- indoor set
- compressor
- conditioning system
- cold
- producing medium
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- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses an air conditioning system, the utility model discloses a go into whether overlength or short excessively of length that the pipe temperature determined the connecting pipe according to the refrigerant of indoor set to be adapted to the change of the connecting pipe length between indoor set and the off -premises station, and dynamic control air conditioning system, guarantee air conditioning system's refrigeration effect and energy -conservation nature simultaneously.
Description
Technical field
The utility model relates to air-conditioning technical, is specifically related to a kind of air-conditioning system.
Background technology
Existing air-conditioning system, when freezing, is all generally control compressor according to given target low-pressure to export.When compressor admission pressure height, just control compressor loads; When admission pressure is low, just control compressor unloading.Thus ensure the refrigeration of indoor set.And target low-pressure is all fixed value given in advance or number range.
But in Practical Project, the tube connector length between indoor set and off-premises station can change with the change of mounting condition.If tube connector length is long, the crushing of the refrigerant pressure that tube connector causes is comparatively large, and this can make the admission pressure of compressor too low, thus compressor output is dragged down, and then affects refrigeration.On the other hand, if tube connector length is too short, then crushing can be caused lower than expected design, thus cause compressor admission pressure higher, make compressor export thereupon and improve, unit power consumption is increased.
Utility model content
In view of this, the utility model provides a kind of air-conditioning system, to be adapted to the change of the tube connector length between indoor set and off-premises station, and Dynamic controlling air-conditioning system, ensure refrigeration and the energy saving of air-conditioning system simultaneously.
Air-conditioning system of the present utility model comprises:
At least one indoor set, described indoor set comprises indoor set expansion valve, enters pipe temperature-sensitive bag and evaporimeter;
Compressor, is connected with the cold-producing medium escape pipe of described indoor set;
Outdoor heat exchanger, is connected between described compressor and described indoor set;
Control device, the cold-producing medium detected for entering pipe temperature-sensitive bag described in basis enters pipe temperature and controls described compressor.
Preferably, described air-conditioning system also comprises:
Low pressure sensor, for detecting the admission pressure of the cold-producing medium that described compressor sucks;
Described control device is used for entering to manage according to described cold-producing medium Temperature cycling regulating target low-pressure, and controls described compressor and make described admission pressure trend towards described target low-pressure.
Preferably, when described control device is less than first threshold for entering pipe temperature at described cold-producing medium, increase described target low-pressure, described cold-producing medium enter pipe temperature be greater than Second Threshold time, reduce described target low-pressure, enter when pipe temperature is less than or equal to Second Threshold and is more than or equal to first threshold to keep described target low-pressure constant at described cold-producing medium.
Preferably, when described control device is less than first threshold for entering pipe temperature at described cold-producing medium, described target low-pressure is increased X-T1, and wherein X is described first threshold, and T1 is that described cold-producing medium enters pipe temperature.
Preferably, when described control device is greater than Second Threshold for entering pipe temperature at described cold-producing medium, described target low-pressure is reduced T1-Y, and wherein Y is described Second Threshold, and T1 is that described cold-producing medium enters pipe temperature.
Preferably, described air-conditioning system comprises multiple indoor set, and described cold-producing medium enters the temperature entering the detection of pipe temperature-sensitive bag that pipe temperature is predetermined indoor set, or the average entering the temperature that pipe temperature-sensitive bag detects of all indoor sets.
Judge that whether the length of tube connector is long or too short by entering pipe temperature according to the cold-producing medium of indoor set, make air-conditioning system can be adapted to the change of the tube connector length between indoor set and off-premises station and run, ensure refrigeration and energy saving simultaneously.
Accompanying drawing explanation
By referring to the description of accompanying drawing to the utility model embodiment, above-mentioned and other objects, features and advantages of the present utility model will be more clear, in the accompanying drawings:
Fig. 1 is the schematic diagram of the air-conditioning system of the utility model first embodiment.
Detailed description of the invention
Based on embodiment, the utility model is described below, but the utility model is not restricted to these embodiments.In hereafter details of the present utility model being described, detailedly describe some specific detail sections.Do not have the description of these detail sections can understand the utility model completely for a person skilled in the art yet.In order to avoid obscuring essence of the present utility model, known method, process, flow process, element and circuit do not describe in detail.
In addition, it should be understood by one skilled in the art that the accompanying drawing provided at this is all for illustrative purposes, and accompanying drawing is not necessarily drawn in proportion.
Unless the context clearly requires otherwise, similar words such as " comprising ", " comprising " otherwise in whole description and claims should be interpreted as the implication that comprises instead of exclusive or exhaustive implication; That is, be the implication of " including but not limited to ".
In description of the present utility model, it is to be appreciated that term " first ", " second " etc. are only for describing object, and instruction or hint relative importance can not be interpreted as.In addition, in description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.
Fig. 1 is the schematic diagram of the air-conditioning system of the utility model first embodiment.As shown in Figure 1, described air-conditioning system comprises at least one indoor set 1, compressor 2, outdoor heat exchanger 3 and control device 4.Wherein indoor set 1 is arranged at indoor, and compressor 2, outdoor heat exchanger 3 and control device 4 are arranged at outdoor at least partly.
Indoor set 1 comprises indoor set expansion valve 11, enters pipe temperature-sensitive bag 12 and evaporimeter 13.Preferably, indoor set 1 also comprises indoor environment temperature-sensitive bag 15 and goes out pipe temperature-sensitive bag 14.Indoor environment temperature-sensitive bag 15 goes out the detection of pipe temperature with the cold-producing medium going out detection and indoor set that pipe temperature-sensitive bag 14 can be used for carrying out indoor environment.These parameters detected may be used for control air-conditioning system being carried out to other side.
Wherein, indoor set expansion valve 11 is for carrying out throttling to cold-producing medium.Enter pipe temperature-sensitive bag 12 for entering the temperature T1 of the cold-producing medium of evaporimeter 13 after detecting throttling, also, cold-producing medium enters pipe temperature.If this temperature is too low, illustrate that tube connector is too short, the output of compressor is bigger than normal, and this temperature is too high, then illustrate that tube connector is long, the output of compressor is less than normal.Thus, pipe temperature can be entered according to the cold-producing medium of indoor set 1 and judge that whether tube connector is too short or long.
Compressor 2 is connected with the cold-producing medium escape pipe of indoor set 1.
Outdoor heat exchanger 3 is connected between compressor 2 and indoor set 1, is input to indoor set 1 for after the refrigerant cools of HTHP that exported by compressor 2.
Control device 4 is connected with indoor set 1, compressor 2, the cold-producing medium detected for entering pipe temperature-sensitive bag described in basis enters pipe temperature T1 and controls compressor 2 load, to make the adaptive load of compressor 2 adjust in the length variations of tube connector, ensure refrigeration and the energy saving of air-conditioning system.
Particularly, in the present embodiment, with the admission pressure of compressor for controling parameter controls, thus, air-conditioning system comprises low pressure sensor 5, and it is for detecting the admission pressure of the cold-producing medium introducing described compressor.Low pressure sensor 5 can be connected in the air inlet pipe of compressor 2.Meanwhile, air-conditioning system can also comprise the gas-liquid separator 6 be connected with compressor 2 air inlet pipe, and it carries out gas-liquid separation for the refrigerant vapour of discharging indoor set, and low pressure sensor 5 can be connected to the air inlet side of gas-liquid separator 6 or side of giving vent to anger.
With admission pressure Te for controling parameter time, control device 4 periodically regulates described target low-pressure Tet for entering pipe temperature T1 according to cold-producing medium, and controls compressor 2 and make admission pressure Te trend towards target low-pressure Tet.Thus, by the target load regulating target low-pressure Tet to regulate compressor 2, thus the change making compressor 2 be adapted to tube connector length increases or reduces to export.
Further, control device 4 periodically regulates target low-pressure Tet as follows:
Enter (also, during T1<X) when pipe temperature T1 is less than first threshold X at cold-producing medium, increase target low-pressure Tet.
Enter (also, during T1>Y) when pipe temperature T1 is greater than Second Threshold Y at cold-producing medium, reduce the low Tet of target.
Enter (also, during X≤T1≤Y) when pipe temperature T1 is less than or equal to Second Threshold Y and is more than or equal to first threshold X at cold-producing medium, keep target low-pressure Tet constant.
Also namely, in each control cycle, enter pipe temperature T1 according to cold-producing medium and target low-pressure is once adjusted, make target low-pressure increase relative to the value in a upper cycle, reduce or remain unchanged.Meanwhile, after target low-pressure has adjusted, the operation controlling compressor has trended towards the target low-pressure Tet after adjusting to make admission pressure Te.Thus, the adjustment through one or more cycle controls to make pipe temperature T1 remain between first threshold X and Second Threshold Y.Now, remain on preset range because cold-producing medium enters pipe temperature T1, therefore, the refrigeration of indoor set is guaranteed.Meanwhile, compressor not with the operation of the scope of surpassing the expectation, its power consumption control, achieves the efficiency utilization to compressor in the reasonable scope.
In a preferred embodiment of the present embodiment, cold-producing medium enter pipe temperature T1 be less than first threshold X time, by target low-pressure Tet increase X-T1, also, Tet
n=Tet
n-1+ (X-T1).
Meanwhile, cold-producing medium enter pipe temperature T1 be greater than Second Threshold Y time, by target low-pressure Tet reduce T1-Y, also, Tet
n=Tet
n-1-(T1-Y).
Thus, the adjusting range of target low-pressure and cold-producing medium are entered pipe temperature associate with the difference of first threshold or Second Threshold, when gap is larger, target low-pressure is significantly adjusted, when gap is less, fine tune is carried out to target low-pressure, target low-pressure can be made to be readily adjusted optimum value.
In another preferred embodiment of the present embodiment, described air-conditioning system comprises multiple indoor set, putting before this, the temperature entering the detection of pipe temperature-sensitive bag that pipe temperature T1 is predetermined indoor set is entered for carrying out adjusting the cold-producing medium used, or the average entering the temperature that pipe temperature-sensitive bag detects of all indoor sets.
Should be understood that as shown in Figure 1, in air-conditioning system, other parts can also be comprised, such as: the cross valve 7 connecting compressor 2 air inlet pipe, blast pipe, indoor set 1 blast pipe and outdoor heat exchanger 4 air inlet pipe; The expansion valve 8 be connected with outdoor heat exchanger 3 blast pipe, and the stop valve 9 be arranged on cold-producing medium tracheae and liquid pipe and A.Other parameter detecting parts can also be comprised simultaneously in air-conditioning system, such as, be arranged at blast pipe temperature-sensitive bag B and the high pressure sensor C of compressor 2 exhaust outlet; The outdoor environment temperature-sensitive bag D etc. be set together with outdoor heat exchanger 3.The collaborative work under the control of control device 4 of above-mentioned parts, to realize other function of air-conditioning system, does not repeat them here.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, to those skilled in the art, the utility model can have various change and change.All do within spirit of the present utility model and principle any amendment, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. an air-conditioning system, comprising:
At least one indoor set, described indoor set comprises indoor set expansion valve, enters pipe temperature-sensitive bag and evaporimeter;
Compressor, is connected with the cold-producing medium escape pipe of described indoor set;
Outdoor heat exchanger, is connected between described compressor and described indoor set;
Control device, the cold-producing medium detected for entering pipe temperature-sensitive bag described in basis enters pipe temperature and controls described compressor.
2. air-conditioning system according to claim 1, is characterized in that, described air-conditioning system also comprises:
Low pressure sensor, for detecting the admission pressure of the cold-producing medium that described compressor sucks;
Described control device is used for entering to manage according to described cold-producing medium Temperature cycling regulating target low-pressure, and controls described compressor and make described admission pressure trend towards described target low-pressure.
3. air-conditioning system according to claim 1, it is characterized in that, described air-conditioning system comprises multiple indoor set, and described control device is used for the temperature entering the detection of pipe temperature-sensitive bag according to predetermined indoor set, or compressor described in the mean control entering the temperature that pipe temperature-sensitive bag detects of all indoor sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520786562.3U CN205156208U (en) | 2015-10-10 | 2015-10-10 | Air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520786562.3U CN205156208U (en) | 2015-10-10 | 2015-10-10 | Air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205156208U true CN205156208U (en) | 2016-04-13 |
Family
ID=55691894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520786562.3U Withdrawn - After Issue CN205156208U (en) | 2015-10-10 | 2015-10-10 | Air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205156208U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299827A (en) * | 2015-10-10 | 2016-02-03 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN113739337A (en) * | 2021-09-13 | 2021-12-03 | 南京天加环境科技有限公司 | Multi-split control method suitable for different pipe lengths |
-
2015
- 2015-10-10 CN CN201520786562.3U patent/CN205156208U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299827A (en) * | 2015-10-10 | 2016-02-03 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN105299827B (en) * | 2015-10-10 | 2018-11-02 | 珠海格力电器股份有限公司 | Air-conditioning system and its control method |
| CN113739337A (en) * | 2021-09-13 | 2021-12-03 | 南京天加环境科技有限公司 | Multi-split control method suitable for different pipe lengths |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160413 Effective date of abandoning: 20181102 |
|
| AV01 | Patent right actively abandoned |