CN214701339U - Oil return system of data center air conditioner compressor, compressor and air conditioning system - Google Patents
Oil return system of data center air conditioner compressor, compressor and air conditioning system Download PDFInfo
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- CN214701339U CN214701339U CN202023329635.6U CN202023329635U CN214701339U CN 214701339 U CN214701339 U CN 214701339U CN 202023329635 U CN202023329635 U CN 202023329635U CN 214701339 U CN214701339 U CN 214701339U
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Abstract
The utility model provides an oil return system, compressor and air conditioning system of data center air condition compressor, the compressor has input port and delivery outlet, and the oil return system of data center air condition compressor includes the oil return circuit that condenser, liquid storage pot, fluorine pump, throttling element and the evaporimeter connected gradually formed, first detection piece and second detection piece; a condenser in the oil return loop is connected with an output port of the compressor, and an evaporator in the oil return loop is connected with an input port of the compressor; the first detection member is disposed on the compressor to detect a level of a refrigeration oil of the compressor; the second detection piece is arranged on the liquid storage tank to detect the liquid level in the liquid storage tank. The utility model provides a data center air condition compressor's oil return system can provide sufficient oil return volume to the compressor when starting the compressor.
Description
Technical Field
The utility model belongs to the technical field of the air conditioner refrigeration, more specifically say, relate to an oil return system, compressor and air conditioning system of data center air condition compressor.
Background
The fluorine pump air conditioner can adjust the environmental temperature of a data center, and comprises three circulation modes, namely a compressor circulation mode, a mixed circulation mode in which a fluorine pump circulation mode and a fluorine pump of a compressor operate together, wherein when the fluorine pump circulation mode is switched to the compressor circulation mode or the mixed circulation mode, the oil return quantity of the compressor is easy to be small, the oil quantity in the compressor is insufficient, the effect that devices in the compressor cannot obtain refrigeration oil, so that faults are easy to occur, and the reliable operation of the compressor is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an oil return system, compressor and air conditioning system of data center air condition compressor, when aiming at solving the start-up compressor, the not enough problem of oil return volume of compressor.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides an oil return system of data center air conditioner compressor, the compressor has input port and delivery outlet, data center air conditioner compressor's oil return system includes:
the condenser, the liquid storage tank, the fluorine pump, the throttling element and the evaporator are connected in sequence to form an oil return loop, a first detection piece and a second detection piece;
a condenser in the oil return loop is connected with an output port of the compressor, and an evaporator in the oil return loop is connected with an input port of the compressor;
the first detection piece is used for being arranged on the compressor to detect the oil level of the refrigeration oil of the compressor;
the second detection piece is used for being arranged on the liquid storage tank to detect the liquid level in the liquid storage tank.
Optionally, the first detection element comprises a liquid level sensor.
Optionally, the second detection element comprises a liquid level sensor.
Optionally, the oil return system of the data center air conditioner compressor further includes a first temperature sensor and a second temperature sensor;
the first temperature sensor is arranged at the input port of the evaporator to detect the temperature of the medium flowing into the input port of the evaporator;
the second temperature sensor is used for being arranged at an output port of the evaporator to detect the temperature of the medium flowing out of the output port of the evaporator.
Optionally, the restriction element comprises an electronic expansion valve.
Optionally, the liquid in the liquid storage tank comprises refrigeration oil and refrigerant.
Optionally, the compressor is connected in parallel with a first check valve.
Optionally, the fluorine pump is connected in parallel with a second check valve.
The utility model discloses the second aspect provides a compressor, the compressor includes as above arbitrary data center air condition compressor's oil return system.
The utility model discloses the third aspect provides an air conditioning system, air conditioning system include the compressor and as above any data center air condition compressor's oil return system.
The utility model provides a data center air condition compressor's oil return system and air conditioning system's beneficial effect lies in: compared with the prior art, the utility model discloses a data center air condition compressor's oil return system is provided with the first detection piece that detects its oil level on the compressor, the oil mass condition in the compressor of acquireing that can be timely can be when the compressor oil level is lower, and the aperture of throttling element is increaseed, makes the oil mass that flows in the compressor increase to when having avoided starting the compressor, the not enough problem of oil return volume of compressor.
Drawings
Fig. 1 is a schematic structural diagram of an oil return system of an air conditioner compressor in a data center according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an oil return system of an air conditioner compressor in a data center according to another embodiment of the present invention.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, an oil return system of a data center air conditioner compressor according to the present invention will now be described. The oil return system of the data center air conditioner compressor comprises an input port and an output port, and comprises an oil return loop, a first detection piece 6 and a second detection piece 7, wherein the oil return loop is formed by a condenser 1, a liquid storage tank 2, a fluorine pump 3, a throttling element 4 and an evaporator 5 which are sequentially connected;
the condenser 1 in the oil return loop is connected with the output port of the compressor, and the evaporator 5 in the oil return loop is connected with the input port of the compressor;
the first detecting member 6 is provided to the compressor to detect a refrigerant oil level of the compressor;
the second detection piece 7 is arranged on the liquid storage tank to detect the liquid level in the liquid storage tank 2.
The utility model discloses an among the concrete implementation way, when using, first detection piece 6 sets up on the compressor, and the refrigeration oil level of acquireing the compressor that can be timely when the oil level is lower in the compressor, adjusts large throttling element's aperture, can make the oil mass that flows into the compressor increase.
When the aperture of throttling element leads to the liquid level in the liquid storage pot to reduce more too greatly, can cause the refrigerant state in the fluorine pump 3 to be gas-liquid two attitude or gaseous state, cause the idle running and the cavitation of pump, the utility model discloses set up second detection piece 7 on liquid storage pot 2, the liquid level in acquireing liquid storage pot 2 that can be timely, when liquid is lower in liquid storage pot 2, turn down throttling element's aperture, and then reduce the speed that liquid descends in the liquid storage pot 2, can progressively increase the height of liquid level in the liquid storage pot 2, until reacing certain liquid level.
The utility model provides an oil return system of data center air condition compressor compares with prior art, the utility model discloses an oil return system of data center air condition compressor is provided with the first detection piece that detects its oil level on the compressor, the oil mass condition in the compressor of acquireing that can be timely, can be when the compressor oil level is lower, and the aperture of throttling element is transferred big, makes the oil mass that flows into the compressor increase to when having avoided starting the compressor, the not enough problem of oil return volume of compressor.
Optionally, please refer to fig. 1, as a specific implementation manner of the oil return system of the data center air conditioner compressor provided by the present invention, the first detecting element 6 includes a liquid level sensor.
In a specific embodiment of the present invention, the first detecting member 6 may include a liquid level sensor to detect a liquid level of the refrigerant oil of the compressor.
Optionally, please refer to fig. 1, as a specific implementation manner of the oil return system of the data center air conditioner compressor provided by the present invention, the second detecting element 7 includes a liquid level sensor.
In a specific embodiment of the present invention, the second detecting member 7 may include a liquid level sensor to detect a liquid level height in the liquid storage tank 2.
Optionally, please refer to fig. 1, as a specific implementation manner of the oil return system of the data center air conditioner compressor provided by the present invention, the oil return system of the data center air conditioner compressor further includes a first temperature sensor and a second temperature sensor;
the first temperature sensor is arranged at the input port of the evaporator 5 and used for detecting the temperature of the medium flowing into the input port of the evaporator 5;
the second temperature sensor is arranged at the output port of the evaporator 5 to detect the temperature of the medium flowing out of the output port of the evaporator 5.
The utility model discloses an among the concrete implementation mode, because the aperture of throttling element 4 is too big, can be when the fluorine pump air conditioner carries out circulation mode switch and start the compressor, lead to getting into the compressor gas and take liquid, cause the liquid hammer to take place, arouse the compressor trouble, therefore, when using, set up first temperature sensor at the input port of evaporimeter 5, first temperature sensor can detect the temperature of evaporimeter 5 input port inflow medium, set up the delivery outlet of second temperature sensor at evaporimeter 5, the temperature of the delivery outlet outflow medium of second temperature sensor can detect evaporimeter 5, the difference of the temperature of outflow medium and the temperature of input port inflow medium through the delivery outlet, reflect throttling element's aperture size. For example, when the temperature difference is smaller than a certain value, the opening degree of the throttling element is adjusted to be smaller, so that the gas flowing into the compressor is reduced.
The utility model discloses an among the concrete implementation mode, with first temperature sensor setting at the input port of evaporimeter 5, with second temperature sensor setting at the delivery outlet of evaporimeter 5, detection that can be timely obtains the temperature difference, adjusts throttling element's aperture, avoids the liquid to hit the harm to the compressor.
Optionally, as the utility model provides a data center air condition compressor's an embodiment of oil return system, throttling element includes electronic expansion valve.
The utility model discloses an among the embodiment, the throttling element includes electronic expansion valve, and is exemplary, and electronic expansion valve is the component of having set for the parameter before dispatching from the factory, when the input liquid level value, can confirm the voltage of this liquid level value according to the liquid level value, adjusts the valve opening according to the voltage value. Or inputting temperature values, obtaining a temperature difference value according to a preset corresponding relation between the two temperature values and the difference value, determining a voltage value according to the relation between the temperature difference value and the voltage, and adjusting the opening of the valve according to the voltage value.
For example, the first detecting member, the second detecting member, the first sensor and the second sensor may be respectively connected to the electronic expansion valve.
The first detection piece detects that the frozen oil level of the compressor is lower than a set first level value, and the electronic expansion valve is opened until the frozen oil level of the compressor is higher than the set first level value.
The liquid level in the liquid storage pot that the second detection piece detected is less than the second liquid level value of setting for, and electronic expansion valve reduces the aperture until the liquid level in the liquid storage pot is greater than the second liquid level value of setting for.
The temperature difference between the first temperature sensor and the second temperature sensor is smaller than the set temperature difference, and the opening degree of the electronic expansion valve is reduced until the temperature difference is larger than the set temperature difference.
Before the electronic expansion valve leaves a factory, related parameters are set, and when the electronic expansion valve is used, the opening degree of the valve can be determined according to the liquid level value by inputting the corresponding liquid level value or by inputting two temperature values. The electronic expansion valve belongs to the existing device, and does not belong to the invention point of the utility model, and is not described herein again.
The throttling element may also be an element that manually controls the valve opening.
Optionally, as the utility model provides a data center air condition compressor's oil return system's a specific implementation mode, the liquid in the liquid storage pot includes refrigeration oil and refrigerant.
In a specific embodiment of the present invention, in the oil return circuit, the circulating medium is the refrigeration oil and the refrigerant, and the refrigeration oil is completely dissolved in the refrigerant and circulates in the refrigeration system together with the refrigerant.
Optionally, please refer to fig. 2, as a specific implementation manner of the oil return system of the data center air conditioner compressor provided by the present invention, the compressor is connected in parallel with a first check valve 8.
In the specific embodiment of the present invention, the first check valve 8 is opened, and the medium flows in the loop toward the condenser 1. When the circulation mode of the fluorine pump air conditioner is switched, if the compressor is not selected, that is, the fluorine pump circulation mode is selected, the first check valve 8 is opened, so that the medium in the loop flows into the condenser 1 from the evaporator 5 through the first check valve 8. And the mode switching is carried out by utilizing the first one-way valve 8, so that the operation is simple.
Optionally, referring to fig. 2, as a specific embodiment of the oil return system of the data center air conditioner compressor provided in the present invention, the fluorine pump 3 is connected in parallel with a second check valve 9.
In a special embodiment of the invention, the second non return valve 9 is opened and the medium in the circuit flows in the direction of the restriction element 4. When the circulation mode of the fluorine pump air conditioner is switched, if the fluorine pump 3 is not selected, namely, the compressor circulation mode is selected, the second one-way valve 9 can be opened, so that the medium in the loop flows into the throttling element 4 from the liquid storage tank 2 through the second one-way valve 9. And the mode switching is carried out by utilizing the second one-way valve 9, so that the operation is simple.
The utility model provides a compressor is regarded as the utility model provides a concrete implementation of compressor, including as above arbitrary data center air condition compressor's oil return system.
The utility model discloses an among the embodiment, in using data center air condition compressor's oil return system to the compressor, be provided with the first detection piece that detects its oil level on the compressor, the oil mass condition in the compressor of acquireing that can be timely can be when the compressor oil level is lower, and the aperture of enlarging throttling element makes the oil mass that flows into the compressor increase to when having avoided starting the compressor, the not enough problem of oil return volume of compressor.
The utility model also provides an air conditioning system, conduct the utility model provides an air conditioning system's a concrete implementation mode, including compressor and as above arbitrary data center air condition compressor's oil return system.
The utility model discloses an among the concrete implementation manner, air conditioning system includes compressor and as above arbitrary data center air condition compressor's oil return system, is provided with the first detection piece that detects its oil level on the compressor, the oil mass condition in the compressor of acquireing that can be timely, can be when the compressor oil level is lower, and the aperture of enlarging throttling element makes the oil mass that flows into the compressor increase to when having avoided the start-up compressor, the not enough problem of oil return volume of compressor. Thereby prolonging the service life of the air conditioning system.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The oil return system of the data center air conditioner compressor is characterized by comprising an oil return loop, a first detection piece and a second detection piece, wherein the oil return loop is formed by a condenser, a liquid storage tank, a fluorine pump, a throttling element and an evaporator which are sequentially connected;
a condenser in the oil return loop is connected with an output port of the compressor, and an evaporator in the oil return loop is connected with an input port of the compressor;
the first detection piece is used for being arranged on the compressor to detect the oil level of the refrigeration oil of the compressor;
the second detection piece is used for being arranged on the liquid storage tank to detect the liquid level in the liquid storage tank.
2. The oil return system of a data center air conditioning compressor of claim 1, wherein the first detection member comprises a liquid level sensor.
3. The oil return system of a data center air conditioning compressor of claim 1, wherein the second detection member comprises a liquid level sensor.
4. The oil return system of a data center air conditioning compressor of claim 1, further comprising a first temperature sensor and a second temperature sensor;
the first temperature sensor is arranged at the input port of the evaporator to detect the temperature of the medium flowing into the input port of the evaporator;
the second temperature sensor is used for being arranged at an output port of the evaporator to detect the temperature of the medium flowing out of the output port of the evaporator.
5. The oil return system of a data center air conditioner compressor as recited in any one of claims 1 to 4 wherein the throttling element comprises an electronic expansion valve.
6. The oil return system of a data center air conditioning compressor of claim 5, wherein the liquid in the liquid storage tank comprises refrigeration oil and refrigerant.
7. The oil return system of a data center air conditioning compressor of claim 5 wherein the compressor is connected in parallel with a first check valve.
8. The oil return system of a data center air conditioner compressor as recited in claim 5 wherein the fluorine pump is coupled in parallel with a second check valve.
9. A compressor comprising an oil return system for a data center air conditioning compressor according to any one of claims 1 to 8.
10. An air conditioning system comprising a compressor and an oil return system for a data center air conditioning compressor as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023329635.6U CN214701339U (en) | 2020-12-30 | 2020-12-30 | Oil return system of data center air conditioner compressor, compressor and air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023329635.6U CN214701339U (en) | 2020-12-30 | 2020-12-30 | Oil return system of data center air conditioner compressor, compressor and air conditioning system |
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| CN214701339U true CN214701339U (en) | 2021-11-12 |
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| CN202023329635.6U Active CN214701339U (en) | 2020-12-30 | 2020-12-30 | Oil return system of data center air conditioner compressor, compressor and air conditioning system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811999A (en) * | 2022-05-24 | 2022-07-29 | 珠海格力电器股份有限公司 | Oil return system of double-mode fluorine pump refrigerating device, control method of oil return system and machine room air conditioner |
| CN114992929A (en) * | 2022-06-08 | 2022-09-02 | 珠海格力电器股份有限公司 | Dual-mode refrigeration system and control method thereof |
-
2020
- 2020-12-30 CN CN202023329635.6U patent/CN214701339U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811999A (en) * | 2022-05-24 | 2022-07-29 | 珠海格力电器股份有限公司 | Oil return system of double-mode fluorine pump refrigerating device, control method of oil return system and machine room air conditioner |
| CN114992929A (en) * | 2022-06-08 | 2022-09-02 | 珠海格力电器股份有限公司 | Dual-mode refrigeration system and control method thereof |
| CN114992929B (en) * | 2022-06-08 | 2023-09-12 | 珠海格力电器股份有限公司 | Dual-mode refrigerating system and control method thereof |
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