CN205208990U - Rotor compressing and condensing unit - Google Patents
Rotor compressing and condensing unit Download PDFInfo
- Publication number
- CN205208990U CN205208990U CN201520500571.1U CN201520500571U CN205208990U CN 205208990 U CN205208990 U CN 205208990U CN 201520500571 U CN201520500571 U CN 201520500571U CN 205208990 U CN205208990 U CN 205208990U
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- pressure
- rotor
- compressor
- rotor compressor
- pressure switch
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Abstract
The utility model provides a rotor compressing and condensing unit, rotor compressor mouth connects gradually condenser, reservoir, drier -filter, sight glass, the export of high -pressure liquid pipe through the pipeline, behind solenoid valve and the capillary serial connectivity, one end communicates the pipeline between drier -filter and the export of high -pressure liquid pipe, another intercommunication rotor compressor induction port, set up temperature switch and high -pressure pressure switch on the exhaust pipe of rotor compressor mouth, connect the low -pressure pressure switch on the breathing pipe way of rotor compressor induction port. When the low -pressure pressure switch broke off, the rotor compressor outage was shut down, and solenoid valve powered off closes. When the low -pressure pressure switch closure, solenoid valve powered on opens, realizes high, low pressure balance via the capillary, and the compressor circular telegram starts. When exhaust temperature was lower, solenoid valve powered off closed, and when exhaust temperature was higher, solenoid valve powered on opened, through the capillary to the breathing pipe hydrojet. The unit is worked under good environment, has effectively improved compressor life.
Description
Technical field
The utility model relates to a kind of rotor compression condensation unit.
Background technology
At present, because rotor compressor is with low cost, come into operation in freezing field gradually, occurred a lot of rotor compression condensation unit, be combined into a system with the air-cooler etc. in refrigerator or freezer and use.Move to compressor to reduce cold-producing medium, a lot of system adopts this control mode that circulates of finding time, and namely temperature controller directly controls the liquid pipe magnetic valve in refrigerator or air-cooler, instead of compressor.Like this, during shutdown there is higher differential pressure in system high and low pressure, and most of rotor compressor needs high and low pressure pressure balance to start, and causes compressor normally not start thus.In addition, when compressor start final vacuum temperature is higher, system can not carry out Liquid injection cooling in time, reduces the service life of compressor, causes compressor premature deterioration.
Utility model content
The utility model discloses a kind of rotor compression condensation unit, under the control of its control system, by same magnetic valve and capillary, not only achieve the high and low pressure dynamic balance before compressor start, and when compressor start final vacuum temperature is higher, also achieve Liquid injection cooling, whole unit is worked under good environment, strengthen while condensation effect, improve compressor service life.It is large that the utility model effectively overcomes the high and low pressure reduction of compressor that prior art exists, and can not normally start, and the drawback such as service life is short.
Technical solutions of the utility model are achieved in that
A kind of rotor compression condensation unit, comprises rotor compressor, condenser, reservoir, device for drying and filtering, liquid-sighting glass, magnetic valve, capillary, high-pressure switch, low pressure switch, temperature switch; Be characterized in: rotor compressor exhaust outlet connects condenser, reservoir, device for drying and filtering, liquid-sighting glass, high-pressure liquid tube outlet successively by pipeline; Condenser is dispelled the heat by condensation fan; After magnetic valve and capillary serial communication, the pipeline between a connection device for drying and filtering and the outlet of unit high-pressure liquid tube, other end is communicated with rotor compressor air entry; Gas exhaust piping between rotor compressor exhaust outlet and condenser sets gradually temperature switch and high-pressure switch; Rotor compressor air entry with intercapillary suction line are connected low pressure switch.
A kind of rotor compression freezing machine set control system, comprising: external single phase power source, contactor KM, circuit breaker Q F, thermal overload relay FR, delayed time relay KT, be characterized in:
A) external single phase power source live wire, zero line enter terminal block U1, N1, U2, N2 respectively through circuit breaker Q F;
B) U1, N1 access major loop: U1, N1 access contactor KM often opens main contacts, and then connect thermal overload relay FR, then access rotor compressor MC, condensation fan FM;
C) U2, N2 Access Control loop: after the normally opened contact of time relay KT and contactor KM coils connected in series, access U2, N2 respectively; Low pressure switch normally-closed contact SP1, high-pressure switch normally-closed contact SP2, thermal overload relay FR normally-closed contact and delayed time relay KT coil access U2, N2 after connecting successively respectively;
D) normally-closed contact of delayed time relay KT, the normally opened contact of temperature switch ST are connected in parallel, then the circuit after series electrical magnet valve YV coil, are connected with delayed time relay KT coils from parallel connection of coils.
The utility model unit adopts rotor compressor, only has a magnetic valve, a capillary in unit.When unit uses, only need to provide power supply and ground protection, do not need have wiring to be connected between other parts (as temperature controller).When low pressure switch disconnects, rotor compression tester in power-down state is shut down, and magnetic valve power-off is closed.When low pressure switch closes, solenoid valves is opened, and realizes high and low pressure dynamic balance via capillary, and after certain hour, compressor energising starts.After compressor start, when delivery temperature is lower (75 DEG C), magnetic valve power-off is closed, and when delivery temperature is higher (95 DEG C), solenoid valves is opened, and by capillary to air intake duct hydrojet, reduces the delivery temperature of compressor, maintains compressor and normally runs.In control, realized by contactor, low pressure switch, the delayed time relay, temperature switch etc.
The utility model adopts unique refrigeration system and control system, by same magnetic valve and capillary, not only achieve the high and low pressure dynamic balance before compressor start, and when compressor start final vacuum temperature is higher, also achieve Liquid injection cooling, whole unit is worked under good environment, strengthens while condensation effect, improve compressor service life.
Accompanying drawing explanation
Fig. 1 is the utility model rotor compression condensation Crew Cooling System schematic diagram;
Fig. 2 is the utility model rotor compression condensation unit electronic schematic diagram.
1, rotor compressor, 2, condensation fan, 3, condenser, 4 reservoirs, 5, device for drying and filtering, 6, liquid-sighting glass, 7, magnetic valve, 8, capillary, 9, high-pressure switch, 10, low pressure switch, 11, temperature switch, 12, rotor compressor exhaust outlet, 13, rotor compressor air entry, 14, high-pressure liquid tube outlet, 15, low pressure air suction import.
Detailed description of the invention
Below in conjunction with accompanying drawing and example, the present invention is described in detail.
A kind of rotor compression condensation unit, as shown in Figure 1: comprise rotor compressor 1, condensation fan 2, condenser 3, reservoir 4, device for drying and filtering 5, liquid-sighting glass 6, magnetic valve 7, capillary 8, high-pressure switch 9, low pressure switch 10, temperature switch 11.Rotor compressor exhaust outlet 12 connects condenser 3, reservoir 4, device for drying and filtering 5, liquid-sighting glass 6, high-pressure liquid tube outlet 14 successively by pipeline; After magnetic valve 7 and capillary 8 serial communication, the pipeline between a connection device for drying and filtering 5 and unit high-pressure liquid tube outlet 14, other end is communicated with rotor compressor air entry 13; Gas exhaust piping between rotor compressor exhaust outlet 12 and condenser 3 sets gradually temperature switch 11 and high-pressure switch 9; Suction line between rotor compressor air entry 13 and capillary 8 connects low pressure switch 10.
A kind of rotor compression freezing machine set control system, as shown in Figure 2: external single phase power source, contactor KM, circuit breaker Q F, thermal overload relay FR, delayed time relay KT.
E) external single phase power source live wire, zero line enter terminal block U1, N1, U2, N2 respectively through circuit breaker Q F;
F) U1, N1 access major loop: U1, N1 access contactor KM often opens main contacts, and then connect thermal overload relay FR, then access rotor compressor MC, condensation fan FM;
G) U2, N2 Access Control loop: after the normally opened contact of time relay KT and contactor KM coils connected in series, access U2, N2 respectively; Low pressure switch normally-closed contact SP1, high-pressure switch normally-closed contact SP2, thermal overload relay FR normally-closed contact and delayed time relay KT coil access U2, N2 after connecting successively respectively;
H) normally-closed contact of delayed time relay KT, the normally opened contact of temperature switch ST are connected in parallel, then the circuit after series electrical magnet valve YV coil, are connected with delayed time relay KT coils from parallel connection of coils.
After rotor compression condensation unit and refrigerator that liquid pipe magnetic valve and throttling arrangement are housed or air-cooler pipeline exact connect ion, system accesses power supply again.When temperature controller temperature sensor is higher, liquid pipe magnetic valve in refrigerator or air-cooler is opened, low pressure rises, and low pressure switch normally-closed contact closes, in rotor compression condensation unit control loop, the delayed time relay is energized, owing to there being power-on time time delay, time relay normally-closed contact still closes, and in rotor compression condensation unit, solenoid valves is opened, via capillary, realize high and low pressure dynamic balance.After the delayed time arrives, time relay normally opened contact closes, contactor powers on, compressor is energized, now because high and low pressure balances, compressor start, work, and time relay normally-closed contact disconnects, the break-make of magnetic valve is now decided by the switch of the temperature switch that gas exhaust piping is installed.When delivery temperature is lower, temperature switch normally opened contact disconnects, magnetic valve power-failure close, and capillary is obstructed; When delivery temperature is higher, temperature switch normally opened contact closes, and magnetic valve powers on and opens, and via capillary hydrojet, to suction line cooling, reduces the suction superheat of compressor, thus reduces compressor exhaust temperature.
When refrigerator or freezer design temperature arrive, temperature controller controls the liquid pipe closed electromagnetic valve in refrigerator or air-cooler, because compressor still runs in energising, low pressure continues to reduce, until low pressure switch motion: normally-closed contact disconnects, thus compressor power-off in Condensing units is out of service, magnetic valve power-off is closed.
Delayed time relay KT, also has the function preventing high frequent from starting, particularly when high-pressure switch, low pressure switch, thermal overload relay are frequently reported to the police and reset.
Claims (1)
1. a rotor compression condensation unit, comprises rotor compressor, condensation fan, condenser, reservoir, device for drying and filtering, liquid-sighting glass, magnetic valve, capillary, high-pressure switch, low pressure switch, temperature switch; It is characterized in that: rotor compressor exhaust outlet connects condenser, reservoir, device for drying and filtering, liquid-sighting glass, high-pressure liquid tube outlet successively by pipeline; Condenser is dispelled the heat by condensation fan; After magnetic valve and capillary serial communication, the pipeline between a connection device for drying and filtering and high-pressure liquid tube outlet, other end is communicated with rotor compressor air entry; Gas exhaust piping between rotor compressor exhaust outlet and condenser sets gradually temperature switch and high-pressure switch; Rotor compressor air entry with intercapillary suction line are connected low pressure switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520500571.1U CN205208990U (en) | 2015-07-13 | 2015-07-13 | Rotor compressing and condensing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520500571.1U CN205208990U (en) | 2015-07-13 | 2015-07-13 | Rotor compressing and condensing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205208990U true CN205208990U (en) | 2016-05-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520500571.1U Expired - Fee Related CN205208990U (en) | 2015-07-13 | 2015-07-13 | Rotor compressing and condensing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205208990U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525218A (en) * | 2017-07-27 | 2017-12-29 | 奥克斯空调股份有限公司 | A kind of self-adaptation control method and system of A/C pressure switch wiring |
| CN108528165A (en) * | 2017-12-06 | 2018-09-14 | 广西柳工机械股份有限公司 | The guard method of car air-conditioner high-low pressure and protection system |
| CN115451595A (en) * | 2022-08-22 | 2022-12-09 | 广东精益运输制冷设备有限公司 | Refrigerating unit and refrigerator car with same |
-
2015
- 2015-07-13 CN CN201520500571.1U patent/CN205208990U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525218A (en) * | 2017-07-27 | 2017-12-29 | 奥克斯空调股份有限公司 | A kind of self-adaptation control method and system of A/C pressure switch wiring |
| CN107525218B (en) * | 2017-07-27 | 2019-10-18 | 奥克斯空调股份有限公司 | A kind of self-adaptation control method and system of A/C pressure switch wiring |
| CN108528165A (en) * | 2017-12-06 | 2018-09-14 | 广西柳工机械股份有限公司 | The guard method of car air-conditioner high-low pressure and protection system |
| CN115451595A (en) * | 2022-08-22 | 2022-12-09 | 广东精益运输制冷设备有限公司 | Refrigerating unit and refrigerator car with same |
| CN115451595B (en) * | 2022-08-22 | 2023-07-28 | 广东精益运输制冷设备有限公司 | Refrigerating unit and refrigerator car with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201300 Shanghai city Pudong New Area Xuanqiao town Sanzao Metropolitan Industrial Park Road No. 138 Xuan -A region Patentee after: Shanghai source information environment Polytron Technologies Inc Address before: 201300 Shanghai city Pudong New Area Xuanqiao town Sanzao Metropolitan Industrial Park Road No. 138 Xuan -A region Patentee before: SHANGHAI YUANZHI ENVIRONMENTAL TECHNOLOGY CO., LTD. |
|
| 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: 20160504 Termination date: 20190713 |