CN205047400U - Air conditioning unit oil temperature control system - Google Patents
Air conditioning unit oil temperature control system Download PDFInfo
- Publication number
- CN205047400U CN205047400U CN201520667515.7U CN201520667515U CN205047400U CN 205047400 U CN205047400 U CN 205047400U CN 201520667515 U CN201520667515 U CN 201520667515U CN 205047400 U CN205047400 U CN 205047400U
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- oil
- temperature
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- control system
- compressor
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Abstract
The utility model provides an air conditioning unit oil temperature control system for the temperature of control compressor lubrication oil, include: oil cooler has oil inlet and oil -out, and the oil inlet is connected with the oil separator's of compressor oil drain port through first pipeline, and the oil -out passes through the second pipeline and is connected with the oil return opening of compressor, oil heater sets up in the oil separator of compressor or on the first pipeline for heat lubricating oil, by -pass line sets up with oil cooler is parallelly connected, the control valve sets up on first pipeline and by -pass line. The utility model discloses a set up the by -pass line parallelly connected with oil cooler to correspond the device control valve, thereby can open by -pass line shutting down and the start -up initial stage, make lubricating oil not pass through oil cooler, thereby solved the problem that lubricating oil heats earlier the postcooling, reduce the energy consumption.
Description
Technical field
The utility model relates to airconditioning control field, in particular to a kind of air-conditioner set Oil-temperature control system.
Background technique
Low temperature refrigerator group is because evaporating temperature is low, the high delivery temperature that causes of pressure ratio is high, and the lubricant oil of corresponding higher temperature needs configuration oil cooler to carry out independence cooling just can get back to compressor.And when starting at low ambient temperatures, compressor can be affected because oil temperature is low normal, need to fill electric heater on oil separator (the built-in oil content that external oil content or compressor carry), just open electric heating heating oil temperature when compressor shutdown.But at low ambient temperatures; when the compressor is shut down; oil temperature can be reduced near ambient temperature; certain flow must be kept to the cooling water that oil cooler cools in order to antifreeze simultaneously; even if compressor open before oil temperature be electrically heated device and be heated to uniform temperature and reach starting condition; oil is got back to compressor through oil cooler and to be cooled again reduction temperature; this is very unfavorable to the operation of compressor; and to oil temperature be heated on the one hand when starting; on the one hand again can cooling oil temperature, also can increase energy consumption.
Model utility content
The utility model aims to provide a kind of air-conditioner set Oil-temperature control system reducing energy consumption.
The utility model provides a kind of air-conditioner set Oil-temperature control system, for controlling the temperature of compressor lubricant oil, comprise: oil cooler, there is filler opening and oil outlet, filler opening is connected with the oil drain out of the oil separator of compressor by the first pipeline, and oil outlet is connected with the return opening of compressor by the second pipeline; Oil heater, is arranged in the oil separator of compressor or on the first pipeline, for heating lubricant oil; Bypass line, is arranged in parallel with oil cooler; Control valve, is arranged on the first pipeline and bypass line.
Further, air-conditioner set Oil-temperature control system also comprises the first temperature-detecting device, and the first temperature-detecting device is arranged on the bottom of oil separator.
Further, air-conditioner set Oil-temperature control system also comprises the second temperature-detecting device, and the second temperature-detecting device is arranged on the second pipeline.
Further, control valve comprises bypass control valve (BCV) and refrigeration control valve, and bypass control valve (BCV) is arranged on bypass line, and refrigeration control valve is arranged on the first pipeline.
Further, bypass control valve (BCV) comprises bypass solenoid valve and the bypass hand valve of series connection mutually; Refrigeration control valve comprises refrigeration solenoid valve and the refrigeration hand valve of series connection mutually.
Further, oil heater is multiple, is arranged on the bottom of oil separator.
According to air-conditioner set Oil-temperature control system of the present utility model; by arranging the bypass line in parallel with oil cooler; and correspondence arranges control valve; thus can in shutdown and initial start stage; bypass line is opened; make lubricant oil without oil cooler, thus solve the problem that lubricant oil first heats rear cooling, reduce energy consumption.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the principle schematic according to air-conditioner set Oil-temperature control system of the present utility model;
Fig. 2 is the principle schematic of the controlling method according to air-conditioner set Oil-temperature control system of the present utility model;
Description of reference numerals:
10, oil cooler; 11, the first pipeline; 12, the second pipeline; 13, bypass line; 14, the first temperature-detecting device; 15, the second temperature-detecting device; 20, oil separator; 30, oil heater.
Embodiment
Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
As shown in Figure 1, according to air-conditioner set Oil-temperature control system of the present utility model, for controlling the temperature of compressor lubricant oil, comprise: oil cooler 10, there is filler opening and oil outlet, filler opening is connected with the oil drain out of the oil separator 20 of compressor by the first pipeline 11, and oil outlet is connected with the return opening of compressor by the second pipeline 12; Oil heater 30, is arranged in the oil separator 20 of compressor or on the first pipeline 11, for heating lubricant oil; Bypass line 13, is arranged in parallel with oil cooler 10; Control valve, is arranged on the first pipeline 11 and bypass line 13.The utility model is by arranging the bypass line 13 in parallel with oil cooler 10, and correspondence arranges control valve, thus can in shutdown and initial start stage; bypass line 13 is opened; make lubricant oil without oil cooler 10, thus solve the problem that lubricant oil first heats rear cooling, reduce energy consumption.
Preferably, oil heater 30 is multiple, as two or three, one or more can be adopted normally to work, set-up mode for subsequent use in addition.Oil heater 30 is arranged on the bottom of oil separator 20, thus heats lubricant oil; Oil heater 30 also can be arranged on bypass line 13, can realize lubricant oil heating function equally, and heating can be rapider.Usually, oil heater 30 adopts Electric heating.
Usually, air-conditioner set Oil-temperature control system also comprises the bottom that the first temperature-detecting device 14, first temperature-detecting device 14 is arranged on oil separator 20, thus detects oil temperature, and then controls oil heater 30.Preferably, air-conditioner set Oil-temperature control system also comprises the second temperature-detecting device 15, second temperature-detecting device 15 and is arranged on the second pipeline 12, detects the temperature entering the lubricant oil of compressor, thus controls oil temperature more accurately.
Usually, control valve comprises bypass control valve (BCV) and refrigeration control valve, and bypass control valve (BCV) is arranged on bypass line 13, and refrigeration control valve is arranged on the first pipeline 11, thus controls the first pipeline 11 and bypass line 13 respectively.More preferably, bypass control valve (BCV) comprises bypass solenoid valve SV1 and the bypass hand valve V1 of series connection mutually; Refrigeration control valve comprises refrigeration solenoid valve SV2 and the refrigeration hand valve V2 of series connection mutually.Normal condition, bypass hand valve V1 and refrigeration hand valve V2 is in opening state all the time, bypass hand valve V1 and refrigeration hand valve V2 also can manual tune to certain aperture, to change the flow through oil cooler 10 and bypass line 13, or substitute its work when urgencies such as bypass solenoid valve SV1 and refrigeration solenoid valve SV2 faults.
Composition graphs 2 illustrates the controlling method of the utility model air-conditioner set Oil-temperature control system, lubricating oil temperature Ta and compressor oil-supplying temperature Tb is detected respectively by the first temperature-detecting device 14 and the second temperature-detecting device 15, then the running state of unit is judged by master controller, and control bypass line 13 and the first pipeline 11 respectively by bypass solenoid valve SV1 and refrigeration solenoid valve SV2, thus automatically by Oil-temperature control in rational temperature province.
Particularly, illustrate in conjunction with unit different conditions:
1) when unit is in outage state: bypass solenoid valve SV1 opens, refrigeration solenoid valve SV2 closes, and cooling water (in Fig. 1 shown in arrow A, B) does not affect oil temperature through oil cooler 10.Now detect lubricating oil temperature Ta, as Ta< setting value T1, oil heater 30 leaves; As Ta> setting value T2, oil heater 30 closes; As T1≤Ta≤T2, oil heater 30 state remains unchanged.
2) when unit prepares to open: detect and keep bypass solenoid valve SV1 to open, refrigeration solenoid valve SV2 closes.Now detect compressor oil-supplying temperature Tb, as Tb >=T3, oil heater 30 closes, and prepares start; As Tb<T3, now detect lubricating oil temperature Ta, work as Ta<T4, then drive oil heater 30, until meet Ta >=T4, then close oil heater 30, prepare start.
3) when unit is in open state: oil heater 30 keeps closed condition.Now detect compressor oil-supplying temperature Tb, as Tb<T5, bypass solenoid valve SV1 opens, and refrigeration solenoid valve SV2 closes; As T5≤Tb<T6, bypass solenoid valve SV1 opens, and refrigeration solenoid valve SV2 opens; As T6≤Tb≤T7, bypass solenoid valve SV1, refrigeration solenoid valve SV2 state remain unchanged; As Tb>T7, bypass solenoid valve SV1 closes, and refrigeration solenoid valve SV2 opens.
4) when unit prepares to shut down: meet halt condition and shut down, shut down, bypass solenoid valve SV1 opens, refrigeration solenoid valve SV2 closes.Then outage state is entered.
It should be noted that, parameter T1 ~ T7 is predefined value, can arrange in the controller.
As can be seen from the above description, the utility model the above embodiments achieve following technique effect:
According to air-conditioner set Oil-temperature control system of the present utility model; by arranging the bypass line in parallel with oil cooler; and correspondence arranges control valve; thus can in shutdown and initial start stage; bypass line is opened; make lubricant oil without oil cooler, thus solve the problem that lubricant oil first heats rear cooling, reduce energy consumption.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. an air-conditioner set Oil-temperature control system, for controlling the temperature of compressor lubricant oil, is characterized in that, comprising:
Oil cooler (10), there is filler opening and oil outlet, described filler opening is connected with the oil drain out of the oil separator (20) of described compressor by the first pipeline (11), and described oil outlet is connected with the return opening of described compressor by the second pipeline (12);
Oil heater (30), is arranged in the oil separator (20) of described compressor or on described first pipeline (11), for heating lubricant oil;
Bypass line (13), is arranged in parallel with described oil cooler (10);
Control valve, is arranged on described first pipeline (11) and described bypass line (13).
2. air-conditioner set Oil-temperature control system according to claim 1, is characterized in that,
Described air-conditioner set Oil-temperature control system also comprises the first temperature-detecting device (14), and described first temperature-detecting device (14) is arranged on the bottom of described oil separator (20).
3. air-conditioner set Oil-temperature control system according to claim 1, is characterized in that,
Described air-conditioner set Oil-temperature control system also comprises the second temperature-detecting device (15), and described second temperature-detecting device (15) is arranged on described second pipeline (12).
4. air-conditioner set Oil-temperature control system according to claim 1, is characterized in that,
Described control valve comprises bypass control valve (BCV) and refrigeration control valve, and described bypass control valve (BCV) is arranged on described bypass line (13), and described refrigeration control valve is arranged on described first pipeline (11).
5. air-conditioner set Oil-temperature control system according to claim 4, is characterized in that,
Described bypass control valve (BCV) comprises bypass solenoid valve and the bypass hand valve of series connection mutually;
Described refrigeration control valve comprises refrigeration solenoid valve and the refrigeration hand valve of series connection mutually.
6. air-conditioner set Oil-temperature control system according to claim 1, is characterized in that,
Described oil heater (30), for multiple, is arranged on the bottom of described oil separator (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520667515.7U CN205047400U (en) | 2015-08-31 | 2015-08-31 | Air conditioning unit oil temperature control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520667515.7U CN205047400U (en) | 2015-08-31 | 2015-08-31 | Air conditioning unit oil temperature control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205047400U true CN205047400U (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520667515.7U Expired - Fee Related CN205047400U (en) | 2015-08-31 | 2015-08-31 | Air conditioning unit oil temperature control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205047400U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570088A (en) * | 2015-08-31 | 2016-05-11 | 珠海格力电器股份有限公司 | Air conditioning unit oil temperature control system and method |
| CN105952621A (en) * | 2016-05-16 | 2016-09-21 | 广东芬尼克兹节能设备有限公司 | Compressor coil heating control method and system |
| CN112325519A (en) * | 2020-11-25 | 2021-02-05 | 珠海格力电器股份有限公司 | Oil storage device and air conditioning unit with same |
-
2015
- 2015-08-31 CN CN201520667515.7U patent/CN205047400U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570088A (en) * | 2015-08-31 | 2016-05-11 | 珠海格力电器股份有限公司 | Air conditioning unit oil temperature control system and method |
| CN105570088B (en) * | 2015-08-31 | 2018-08-03 | 珠海格力电器股份有限公司 | Air-conditioner set Oil-temperature control system and control method |
| CN105952621A (en) * | 2016-05-16 | 2016-09-21 | 广东芬尼克兹节能设备有限公司 | Compressor coil heating control method and system |
| CN112325519A (en) * | 2020-11-25 | 2021-02-05 | 珠海格力电器股份有限公司 | Oil storage device and air conditioning unit with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20210831 |