CN218469331U - Air suspension centrifugal chiller unit continuous and stable liquid storage system - Google Patents
Air suspension centrifugal chiller unit continuous and stable liquid storage system Download PDFInfo
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- CN218469331U CN218469331U CN202222317156.5U CN202222317156U CN218469331U CN 218469331 U CN218469331 U CN 218469331U CN 202222317156 U CN202222317156 U CN 202222317156U CN 218469331 U CN218469331 U CN 218469331U
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Abstract
The utility model relates to the technical field of air suspension centrifugal chiller units, and discloses a continuous and stable liquid storage system of an air suspension centrifugal chiller unit, which comprises an air suspension compressor, an evaporator and a condenser; the gas suspension compressor is connected with the evaporator, the other end of the evaporator is respectively connected with a condenser and an evaporator liquid taking electromagnetic valve, and one end of the condenser, which is far away from the evaporator, is connected with the gas suspension compressor; the dry filter is respectively connected with a condenser liquid taking electromagnetic valve and an evaporator liquid taking one-way valve, the other end of the condenser liquid taking electromagnetic valve is connected with the condenser, and the other end of the evaporator liquid taking one-way valve is connected with the evaporator liquid taking electromagnetic valve; the continuous and stable liquid storage system of the air suspension centrifugal chiller can provide continuous and stable liquid refrigerant for the air suspension centrifugal compressor, and further ensure that the air suspension centrifugal compressor is always in a stable and reliable air supply state.
Description
Technical Field
The utility model relates to a centrifugal cooling water set field of gas suspension specifically is a centrifugal cooling water set of gas suspension lasts stable stock solution system.
Background
The air suspension centrifugal water chilling unit is a speed regulation type oil-free refrigerating unit. The motor rotor of the air suspension compressor is suspended through the air suspension technology, lubricating oil lubrication is not needed between the motor and the bearing, and therefore the air suspension centrifugal water chilling unit has the advantages of high energy efficiency, high stability, convenience in maintenance and the like.
The liquid storage system in the air supply loop of the air suspension centrifugal compressor is the key point for stable operation of the air suspension centrifugal compressor. When the liquid storage system can continuously provide liquid refrigerant for the gas supply system, the gas supply system can continuously provide gas required by suspension for the gas suspension compressor by controlling the electric heater, the electromagnetic valve and other components, and the gas suspension compressor can normally and stably operate. When the gas supply system can not provide gas required by suspension, the gas suspension compressor can not be started to operate. In extreme cases, an abnormality of the air supply system during the operation of the compressor can lead to an irreversible and serious damage of the compressor.
The common liquid storage schemes of the air suspension centrifugal chiller on the market at present mostly adopt liquid taking from the bottom of a condenser. In the normal operation process of the unit, the heat of the gaseous refrigerant in the condenser can be taken away by the cooling water in the condenser, and the gaseous refrigerant is condensed into a liquid refrigerant in the condenser. The scheme has higher reliability and stability under the condition of normal operation of the unit. However, when the unit is shut down or power off suddenly, the compressor stops suddenly, the exhaust stop valve is closed, most of the refrigerant in the system stays in the evaporator, only a small amount of liquid refrigerant or even no liquid refrigerant exists in the condenser, and at the moment, the liquid refrigerant cannot be pumped from the condenser to the air supply tank. In conclusion, the liquid storage system cannot be applied to the condition that the condenser has no liquid refrigerant.
In addition, a few liquid storage schemes are available in the market, and an additional liquid storage device is arranged in the system, namely, enough liquid refrigerant in the liquid storage device is guaranteed under any condition. When the unit receives a shutdown command, storing enough liquid refrigerant into the liquid storage device, and stopping running; when the compressor is started next time, the liquid refrigerant stored in the liquid storage device can provide an air source for the operation of the compressor. The system has higher reliability and stability, but additionally increases the unit cost and increases a certain amount of refrigerant perfusion.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome current defect and the centrifugal cooling water set of gas suspension that provides lasts stable stock solution system can provide the liquid refrigerant that lasts stable for gas suspension centrifugal compressor, and then ensures that gas suspension compressor is in reliable and stable air feed state always.
The technical scheme for realizing the purpose is as follows: a continuous and stable liquid storage system of an air suspension centrifugal chiller comprises an air suspension compressor, an evaporator and a condenser; the gas suspension compressor is connected with the evaporator, the other end of the evaporator is respectively connected with a condenser and an evaporator liquid taking electromagnetic valve, and one end of the condenser, which is far away from the evaporator, is connected with the gas suspension compressor; the dry filter is respectively connected with a condenser liquid taking electromagnetic valve and an evaporator liquid taking one-way valve, the other end of the condenser liquid taking electromagnetic valve is connected with the condenser, and the other end of the evaporator liquid taking one-way valve is connected with the evaporator liquid taking electromagnetic valve; the dry filter is far away from one end of the condenser liquid taking electromagnetic valve and one end of the evaporator liquid taking one-way valve are connected with a refrigerant pump, the other end of the refrigerant pump is connected with a gas supply tank, and the gas supply tank is connected with the gas suspension compressor.
Preferably, the system further comprises a condenser liquid level sensor, and the condenser is further connected with the condenser liquid level sensor and forms a loop.
Preferably, an exhaust check valve is arranged between the condenser and the gas suspension compressor.
Preferably, an air supply check valve is arranged between the refrigerant pump and the air supply tank.
Preferably, a throttle valve is arranged between the condenser and the evaporator.
The utility model has the advantages that: the evaporator is connected with the condenser and the evaporator liquid taking electromagnetic valve respectively by arranging the gas suspension compressor, and the condenser is connected with the gas suspension compressor; the dry filter is respectively connected with a condenser liquid taking electromagnetic valve and an evaporator liquid taking one-way valve, the condenser liquid taking electromagnetic valve is connected with a condenser, and the evaporator liquid taking one-way valve is connected with an evaporator liquid taking electromagnetic valve; one end of the dry filter, which is far away from the liquid taking electromagnetic valve of the condenser and the liquid taking one-way valve of the evaporator, is connected with a refrigerant pump, the other end of the refrigerant pump is connected with a gas supply tank, and the gas supply tank is connected with the gas suspension compressor. The mode can continuously and stably provide a liquid storage function for the air suspension centrifugal chiller, and ensures continuous and stable operation of the air supply system, thereby ensuring continuous and reliable operation of the air suspension centrifugal chiller.
Drawings
Fig. 1 is a schematic diagram of the present invention.
In the figure: 1. a gas suspension compressor; 2. an evaporator; 3. a throttle valve; 4. a condenser; 5. an exhaust check valve; 6. an air supply tank; 7. a gas supply one-way valve; 8. a refrigerant pump; 9. a dry filter; 10. a liquid taking electromagnetic valve of the condenser; 11. a liquid taking one-way valve of the evaporator; 12. an evaporator liquid-taking electromagnetic valve; 13. a condenser liquid level sensor.
Detailed Description
The technical solution of the present invention will be clearly and completely described with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, a continuous and stable liquid storage system of an air suspension centrifugal chiller comprises an air suspension compressor 1, an evaporator 2 and a condenser 4; the gas suspension compressor 1 is connected with the evaporator 2, the other end of the evaporator 2 is respectively connected with the condenser 4 and the evaporator liquid taking electromagnetic valve 12, and one end of the condenser 4, which is far away from the evaporator 2, is connected with the gas suspension compressor 1; the dry filter 9 is respectively connected with a condenser liquid taking electromagnetic valve 10 and an evaporator liquid taking one-way valve 11, the other end of the condenser liquid taking electromagnetic valve 10 is connected with the condenser 4, and the other end of the evaporator liquid taking one-way valve 11 is connected with an evaporator liquid taking electromagnetic valve 12; one end of the dry filter 9, which is far away from the condenser liquid taking electromagnetic valve 10 and the evaporator liquid taking one-way valve 11, is connected with the refrigerant pump 8, the other end of the refrigerant pump 8 is connected with the air supply tank 6, and the air supply tank 6 is connected with the air suspension compressor 1. A condenser liquid level sensor 13 is also included, and the condenser 4 is also connected with the condenser liquid level sensor 13 and forms a loop. An exhaust check valve 5 is arranged between the condenser 4 and the gas suspension compressor 1. An air supply one-way valve 7 is arranged between the refrigerant pump 8 and the air supply tank 6. A throttle valve 3 is provided between the condenser 4 and the evaporator 2. A liquid taking electromagnetic valve 10 of the condenser from the bottom of the condenser 4 to a dry filter 9, a refrigerant pump 8 to a gas supply one-way valve 7 and a gas supply tank 6 for storing liquid refrigerant. The air supply loop of the air suspension compressor 1 is operated in a reasonable interval through the air supply tank 6. An evaporator liquid-taking electromagnetic valve 12 and an evaporator liquid-taking one-way valve 11 which are arranged at the bottom of the evaporator 2 go to a dry filter 9, then go to an air-supply one-way valve 7 by a refrigerant pump 8 and then go to an air-supply tank 6 for storing liquid refrigerant. The air supply loop of the air suspension compressor is operated in a reasonable interval through the air supply tank 6. The condenser 4 liquid level is monitored in real time by a condenser liquid level sensor 13. When the actual liquid level of the condenser 4 is > = L0 (the value can be set, and the optimal set point is obtained through testing), it is indicated that enough liquid refrigerant exists in the condenser 4, at this time, the condenser liquid-taking electromagnetic valve 10 is opened, the evaporator liquid-taking electromagnetic valve 12 is closed, and the liquid refrigerant in the air supply tank 6 comes from the bottom of the condenser 4; when the actual liquid level of the condenser 4 is less than L0, no liquid refrigerant exists in the condenser 4, the condenser liquid-taking electromagnetic valve 10 is closed, the evaporator liquid-taking electromagnetic valve 12 is opened, and the liquid refrigerants in the air supply tank 6 come from the bottom of the evaporator 2. Through the scheme, continuous and stable liquid storage under the conditions of all working conditions, various start-up and shut-down states, unit alarm protection, sudden power failure and the like can be realized, an effective guarantee is provided for a gas supply system of the gas suspension compressor 1, and an extremely important foundation is laid for stable and reliable operation of the centrifugal water chilling unit.
The working principle is as follows: the condenser 4 liquid level is monitored in real time by a condenser liquid level sensor 13. When the actual liquid level of the condenser 4 is > = L0 (the value can be set, and the optimal set point is obtained through testing), it is indicated that enough liquid refrigerant exists in the condenser 4, at this time, the condenser liquid-taking electromagnetic valve 10 is opened, the evaporator liquid-taking electromagnetic valve 12 is closed, and the liquid refrigerant in the air supply tank 6 comes from the bottom of the condenser 4; when the actual liquid level of the condenser 4 is less than L0, no liquid refrigerant exists in the condenser 4, the condenser liquid-taking electromagnetic valve 10 is closed, the evaporator liquid-taking electromagnetic valve 12 is opened, and the liquid refrigerants in the air supply tank 6 come from the bottom of the evaporator 2. Through the scheme, continuous and stable liquid storage under the conditions of all working conditions, various start-up and shut-down states, unit alarm protection, sudden power failure and the like can be realized, an effective guarantee is provided for a gas supply system of the gas suspension compressor 1, and an extremely important foundation is laid for stable and reliable operation of the centrifugal water chilling unit.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (5)
1. A continuous and stable liquid storage system of an air suspension centrifugal water chilling unit is characterized by comprising an air suspension compressor (1), an evaporator (2) and a condenser (4); the gas suspension compressor (1) is connected with the evaporator (2), the other end of the evaporator (2) is respectively connected with a condenser (4) and an evaporator liquid taking electromagnetic valve (12), and one end, far away from the evaporator (2), of the condenser (4) is connected to the gas suspension compressor (1); the dry filter (9) is respectively connected with a condenser liquid taking electromagnetic valve (10) and an evaporator liquid taking one-way valve (11), the other end of the condenser liquid taking electromagnetic valve (10) is connected with the condenser (4), and the other end of the evaporator liquid taking one-way valve (11) is connected with an evaporator liquid taking electromagnetic valve (12); the air-conditioning system is characterized in that the dry filter (9) is far away from one end of the condenser liquid-taking electromagnetic valve (10) and one end of the evaporator liquid-taking one-way valve (11) are connected with the refrigerant pump (8), the other end of the refrigerant pump (8) is connected with the air supply tank (6), and the air supply tank (6) is connected with the air suspension compressor (1).
2. The continuous stable liquid storage system of the air suspension centrifugal chiller according to claim 1 further comprising a condenser liquid level sensor (13), wherein the condenser (4) is further connected with the condenser liquid level sensor (13) and forms a loop.
3. A continuous and stable liquid storage system of an air suspension centrifugal chiller according to claim 1, characterized in that a discharge check valve (5) is arranged between the condenser (4) and the air suspension compressor (1).
4. The continuous and stable liquid storage system of the air suspension centrifugal chiller according to claim 1, characterized in that a gas supply check valve (7) is arranged between the refrigerant pump (8) and the gas supply tank (6).
5. A continuous stable liquid storage system of air-suspending centrifugal chiller according to claim 1 wherein a throttle valve (3) is provided between the condenser (4) and the evaporator (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222317156.5U CN218469331U (en) | 2022-08-31 | 2022-08-31 | Air suspension centrifugal chiller unit continuous and stable liquid storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222317156.5U CN218469331U (en) | 2022-08-31 | 2022-08-31 | Air suspension centrifugal chiller unit continuous and stable liquid storage system |
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| CN218469331U true CN218469331U (en) | 2023-02-10 |
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| CN202222317156.5U Active CN218469331U (en) | 2022-08-31 | 2022-08-31 | Air suspension centrifugal chiller unit continuous and stable liquid storage system |
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- 2022-08-31 CN CN202222317156.5U patent/CN218469331U/en active Active
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