CN211739333U - VRV air conditioning system suitable for equipment room - Google Patents
VRV air conditioning system suitable for equipment room Download PDFInfo
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- CN211739333U CN211739333U CN201922303499.4U CN201922303499U CN211739333U CN 211739333 U CN211739333 U CN 211739333U CN 201922303499 U CN201922303499 U CN 201922303499U CN 211739333 U CN211739333 U CN 211739333U
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Abstract
The utility model relates to a VRV air conditioning system suitable for equipment room, it includes circulation refrigeration subsystem, outdoor VRV air conditioning refrigeration subsystem, at least one indoor VRV air conditioning refrigeration subsystem and with circulation refrigeration subsystem, outdoor VRV air conditioning refrigeration subsystem, indoor VRV air conditioning refrigeration subsystem intercommunication pipe-line system; the indoor VRV air-conditioning refrigeration subsystem comprises a humidifying module and a heating module. Set up humidification module and heating module in every indoor VRV air conditioner refrigeration subsystem to the circulation refrigeration subsystem, outdoor VRV air conditioner refrigeration subsystem that the cooperation communicated through pipe-line system, make every terminal indoor set all can control humidification and the heating of humidification module and heating module according to the humiture demand of self, have the air supply humiture of nimble, accurately adjusting computer lab equipment operation, avoid excessive humidification and heating and cause the extravagant effect of energy.
Description
Technical Field
The utility model belongs to the technical field of subway station air conditioning system's technique and specifically relates to a VRV air conditioning system suitable for equipment room is related to.
Background
At present, with the increasing demands of energy conservation and emission reduction and environmental protection in various fields, especially for efficient and energy-saving data center rooms, subway station rooms and the like, it is urgent to continuously and efficiently reduce the energy consumption and the operation cost of the data center and the subway station rooms. For a subway station, an indoor unit at the tail end of a traditional multi-split air conditioning system does not have heating and humidifying functions, and cannot accurately regulate the temperature and humidity of a subway station equipment room.
For example, in the existing CN 106871293A-machine room heat pipe air conditioner adopting the VRV system, by controlling the refrigerant charge rate in the circulation loop, the air conditioner operates at the optimal refrigerant charge rate in the variable frequency vapor compression cycle refrigeration and heat pipe cycle refrigeration states, and the working mode of the machine room heat pipe air conditioner is adjusted according to the difference of the outdoor temperature to meet the indoor cold and heat load requirements.
The above prior art solutions have the following drawbacks: the terminal indoor unit in every computer lab does not have solitary humidification heating function for the unable accurate adjustment of air supply humiture of indoor unit leads to the humiture in the computer lab to hang down and influences the performance of computer lab equipment and leads to equipment trouble even.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing a VRV air conditioning system suitable for equipment computer lab has the effect that air supply humiture can the accurate regulation.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the VRV air conditioning system suitable for the equipment room comprises a circulating refrigeration subsystem, an outdoor VRV air conditioning refrigeration subsystem, at least one indoor VRV air conditioning refrigeration subsystem and a pipeline system for communicating the circulating refrigeration subsystem, the outdoor VRV air conditioning refrigeration subsystem and the indoor VRV air conditioning refrigeration subsystem; the indoor VRV air-conditioning refrigeration subsystem comprises a humidifying module and a heating module.
Through adopting above-mentioned technical scheme, set up humidification module and heating module in every indoor VRV air conditioner refrigeration subsystem to the circulation refrigeration subsystem that the cooperation was linked together through pipe-line system, outdoor VRV air conditioner refrigeration subsystem, make every terminal indoor set all can control the humidification and the heating of humidification module and heating module according to the humiture demand of self, adjust the air supply humiture of computer lab equipment operation in a flexible way, accurately, avoid excessive humidification and heating and cause the energy waste, and reduced air conditioning system's energy consumption.
The present invention may be further configured in a preferred embodiment as: the indoor VRV air-conditioning refrigeration subsystem further comprises an evaporator coil and an indoor fan; the humidifying module and the heating module are arranged between the evaporator coil and the indoor fan.
By adopting the technical scheme, the humidifying module and the heating module are arranged between the evaporator coil and the indoor fan, so that the air supply temperature and humidity can be further adjusted conveniently to meet the air supply requirement of equipment in a machine room.
The present invention may be further configured in a preferred embodiment as: the humidifying module comprises a humidifier and a humidifying sprayer, and the humidifying sprayer is connected with the humidifier.
Through adopting above-mentioned technical scheme, the humidifier is used for producing the moisture, then carries out humidification processing with the amount of wind that the moisture provided for above-mentioned indoor fan through the humidification shower nozzle of being connected with the humidifier, prevents to cross the static that leads to between the equipment too big and take place short circuit trouble because of the air supply humidity of equipment computer lab.
The present invention may be further configured in a preferred embodiment as: the heating module includes an electric heater.
Through adopting above-mentioned technical scheme, adopt electric heater to carry out the heat treatment for the amount of wind that above-mentioned indoor fan provided, can avoid leading to the computer lab equipment to be in the low temperature state because of computer lab air supply temperature is low excessively to influence the performance of equipment.
The present invention may be further configured in a preferred embodiment as: the circulating refrigeration subsystem comprises a variable-frequency compressor, an oil-gas separator, a liquid-gas separator and a sensor which are communicated through the pipeline system, and the variable-frequency compressor is arranged between the oil-gas separator and the liquid-gas separator.
By adopting the technical scheme, the variable frequency compressor can pressurize the circulating refrigerant in the pipeline system, and then the oil and the moisture in the refrigerant are separated through the oil-gas separator and the liquid-gas separator, so that the purity of the refrigerant is improved, and the refrigeration efficiency is higher.
The present invention may be further configured in a preferred embodiment as: the liquid-gas separator is arranged between the variable-frequency compressor and an evaporator coil of the indoor VRV air-conditioning refrigeration subsystem, and the oil-gas separator is arranged between the variable-frequency compressor and the outdoor VRV air-conditioning refrigeration subsystem.
By adopting the technical scheme, the liquid-gas separator is used for separating moisture contained in the circulating refrigerant flowing out of the terminal indoor unit before entering the variable-frequency compressor, so that the circulating refrigerant is dried; the oil-gas separator can separate oil contained in the circulating refrigerant output from the inverter compressor before the circulating refrigerant is sent to the outdoor VRV air-conditioning refrigeration subsystem for cooling, so that the purity of the refrigerant is improved, and the refrigeration efficiency is higher.
The present invention may be further configured in a preferred embodiment as: the sensor includes high pressure sensor, low pressure sensor, humidity transducer and temperature sensor, high pressure sensor and low pressure sensor set up respectively frequency conversion compressor's high-pressure side and low pressure side, temperature sensor is including setting up terminal indoor set temperature sensor in the indoor VRV air conditioner refrigeration subsystem with set up in frequency conversion compressor with outdoor temperature sensor between the outdoor VRV air conditioner refrigeration subsystem, humidity transducer sets up in the indoor VRV air conditioner refrigeration subsystem.
By adopting the technical scheme, the pressure of the circulating refrigerants on the two sides of the variable frequency compressor is detected through the high-low pressure sensors, and then the pressure of the pipeline system is adjusted by changing the frequency of the variable frequency compressor, so that the pressure is prevented from being too high or too low; the tail end indoor unit temperature sensor is used for detecting the air supply temperature of the tail end indoor unit, the outdoor temperature sensor can monitor the temperature of circulating refrigerants output by the variable frequency compressor, the humidity sensor is arranged in the indoor VRV air-conditioning refrigeration subsystem and can detect the air supply humidity of the tail end indoor unit, and then the humidifying module and the heating module can be conveniently controlled to finely adjust the temperature and the humidity of air supply.
The present invention may be further configured in a preferred embodiment as: an electronic expansion valve is arranged between the outdoor VRV air-conditioning refrigeration subsystem and the indoor VRV air-conditioning refrigeration subsystem.
By adopting the technical scheme, the electronic expansion valve can adjust the flow of the circulating refrigerant entering the indoor VRV air-conditioning refrigeration subsystem according to the air supply temperature of the indoor unit collected by the temperature sensor of the tail end indoor unit, and has wide adjustment range and quick response, thereby being capable of adjusting the air supply temperature of the tail end indoor unit more quickly.
The present invention may be further configured in a preferred embodiment as: the outdoor VRV air-conditioning refrigeration subsystem is arranged outside the machine room, and the indoor VRV air-conditioning refrigeration subsystem is arranged in the machine room; the outdoor VRV air-conditioning refrigeration subsystem comprises a condenser coil and an outdoor fan.
Through adopting above-mentioned technical scheme, a plurality of outdoor VRV air conditioner refrigeration subsystems can be installed outside the computer lab with cascaded mode to be linked together with a plurality of indoor VRV air conditioner refrigeration subsystems of installing in the computer lab, and the quantity of indoor VRV air conditioner refrigeration subsystem can be confirmed according to the number of computer lab, make the utility model discloses an air conditioning system is nimble high-efficient, the elasticity is good.
To sum up, the utility model discloses a following at least one useful technological effect:
1. each terminal indoor unit can control the humidification and heating of the humidification module and the heating module according to the temperature and humidity requirements of the terminal indoor unit, flexibly and accurately adjusts the temperature and humidity of air supply of the machine room equipment, prevents the performance of the machine room equipment from being influenced even to cause equipment failure due to too low temperature and humidity of the air supply, and reduces the energy consumption of an air conditioning system.
2. The humidification module can prevent that the air supply humidity of equipment computer lab is crossed lowly and is leaded to the static electricity between the equipment too big and take place short circuit fault.
3. The heating module can avoid that the service performance of equipment is influenced because the air supply temperature of the machine room is too low and the machine room equipment is in a low-temperature state.
Drawings
Fig. 1 is the utility model discloses a VRV air conditioning system's schematic structure diagram suitable for equipment computer lab.
In the figure, 1, an evaporator coil; 2. an indoor fan; 3. a humidifier; 4. a humidifying spray head; 5. an electric heater; 6. a variable frequency compressor; 7. an oil-gas separator; 8. a liquid-gas separator; 9. a high pressure sensor; 10. a low pressure sensor; 11. a terminal indoor unit temperature sensor; 12. an outdoor temperature sensor; 13. an electronic expansion valve; 14. a condenser coil; 15. an outdoor fan.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a VRV air conditioning system suitable for equipment computer lab, this VRV air conditioning system includes circulation refrigeration subsystem, outdoor VRV air conditioning refrigeration subsystem, at least one indoor VRV air conditioning refrigeration subsystem and the pipe-line system that communicates circulation refrigeration subsystem, outdoor VRV air conditioning refrigeration subsystem, indoor VRV air conditioning refrigeration subsystem; the indoor VRV air conditioner refrigeration subsystem comprises a humidification module, a heating module, an evaporator coil 1 and an indoor fan 2, wherein the humidification module and the heating module are arranged between the evaporator coil 1 and the indoor fan 2, the indoor fan 2 is used for supplying air volume to an equipment room, the humidification module and the evaporator coil 1 are used for humidifying and cooling the air volume supplied by the indoor fan 2, and the heating module is used for heating the air volume. The VRV (variable Refrigerant volume) air-conditioning refrigeration system, namely a variable Refrigerant flow multiple air-conditioning system (multiple on-line for short), is a direct evaporative refrigeration system which timely meets the requirements of indoor cold and heat loads by controlling the Refrigerant circulation quantity of a compressor and the Refrigerant flow entering an indoor heat exchanger, and generally comprises an outdoor unit, an indoor unit and a Refrigerant pipe; the outdoor unit can be connected to the indoor units through the refrigerant pipes, and controls the flow and the state of the refrigerant conveyed to the indoor units according to signals fed back by the indoor units, so that the cold and heat output requirements of different machine rooms are met; the refrigerant pipe is a pipeline through which a refrigerant (such as Freon) flows and is connected with main refrigeration components such as a heat exchanger, a valve, a compressor and the like in the refrigeration air-conditioning system, usually adopts a copper pipe, and has the function of connecting the circulating refrigeration subsystem, the outdoor VRV air-conditioning refrigeration subsystem and the indoor VRV air-conditioning refrigeration subsystem into a circulating refrigeration loop, which is a medium for heat exchange of a machine room.
Example one
The humidifying module comprises a humidifier 3 and a humidifying spray head 4, and the humidifying spray head 4 is connected with the humidifier 3.
The implementation principle of the embodiment is as follows: the humidifier 3 is used for generating moisture, and then the moisture is humidified by the air volume provided by the indoor fan 2 through the humidifying nozzle 4 which is in flexible connection with the humidifier 3, so that short-circuit fault caused by overlarge static electricity among equipment due to too low air supply humidity of an equipment room is prevented.
Example two
The heating module comprises an electric heater 5.
The implementation principle of the embodiment is as follows: the air quantity provided by the indoor fan 2 is heated by the electric heater 5, so that the situation that the equipment in the machine room is in a low-temperature state due to too low air supply temperature of the machine room can be avoided, and the use performance of the equipment is influenced. Further, the electric heater 5 is a PTC heater, the PTC heater is in a U shape formed by a PTC ceramic heating element and an aluminum pipe, has the advantages of small thermal resistance and high heat exchange efficiency, is rapid in temperature rise, can automatically control the temperature when meeting a fan fault, and is long in service life.
EXAMPLE III
The circulating refrigeration subsystem comprises a variable frequency compressor 6, an oil-gas separator 7, a liquid-gas separator 8 and a sensor which are communicated through the pipeline system, wherein the variable frequency compressor 6 is arranged between the oil-gas separator 7 and the liquid-gas separator 8.
The implementation principle of the embodiment is as follows: the inverter compressor 6 can pressurize the circulating refrigerant in the pipeline system, and then the oil and moisture in the refrigerant are separated through the oil-gas separator 7 and the liquid-gas separator 8, so that the purity of the refrigerant is improved, and the refrigeration efficiency is higher. Furthermore, the variable frequency compressor 6 can adjust the working frequency of the variable frequency compressor to adjust the rotating speed of the compressor according to the temperature collected by the temperature sensor, and controls the flow rate of the refrigerant and the flow speed in the pipeline system, so that the temperature of the terminal indoor unit can be rapidly controlled according to the temperature change, more electric energy is consumed by continuously turning on and off the variable frequency compressor to adjust the indoor temperature, and the variable frequency compressor is more efficient and energy-saving compared with the traditional air conditioner compressor.
Example four
The liquid-gas separator 8 in the third embodiment is arranged between the inverter compressor 6 and the evaporator coil 1 of the indoor VRV air-conditioning refrigeration subsystem, and the oil-gas separator 7 is arranged between the inverter compressor 6 and the outdoor VRV air-conditioning refrigeration subsystem.
The implementation principle of the embodiment is as follows: the liquid-gas separator 8 is used for separating moisture contained in the circulating refrigerant flowing out of the tail end indoor unit before entering the variable-frequency compressor 6, so as to dry the circulating refrigerant; the oil-gas separator 7 can separate the oil contained in the circulating refrigerant output from the inverter compressor 6 before the circulating refrigerant is sent to an outdoor VRV air-conditioning refrigeration subsystem for cooling, so that the purity of the refrigerant is improved, and the refrigeration efficiency is higher.
EXAMPLE five
The sensors in the third embodiment include a high-pressure sensor 9, a low-pressure sensor 10, a humidity sensor and a temperature sensor, the high-pressure sensor 9 and the low-pressure sensor 10 are respectively arranged on the high-pressure side and the low-pressure side of the inverter compressor 6, the temperature sensor includes a terminal indoor unit temperature sensor 11 arranged in the indoor VRV air-conditioning refrigeration subsystem and an outdoor temperature sensor 12 arranged between the inverter compressor 6 and the outdoor VRV air-conditioning refrigeration subsystem, and the humidity sensor is arranged in the indoor VRV air-conditioning refrigeration subsystem.
The implementation principle of the embodiment is as follows: the high-pressure sensor 9 and the low-pressure sensor 10 can be used for detecting the pressure of the circulating refrigerant at two sides of the inverter compressor 6, and then the pressure of the pipeline system is adjusted by changing the frequency of the inverter compressor 6 to prevent the pressure from being too high or too low; the tail end indoor unit temperature sensor 11 is used for detecting the air supply temperature of the tail end indoor unit, so that the indoor VRV air-conditioning refrigeration subsystem can control the humidification module and the heating module to finely adjust the temperature and humidity of the supplied air according to the temperature; the outdoor temperature sensor 12 can monitor the temperature of the circulating refrigerant output by the inverter compressor 6; the humidity sensor is arranged in the indoor VRV air-conditioning refrigeration subsystem and can detect the air supply humidity of the terminal indoor unit.
EXAMPLE six
An electronic expansion valve 13 is arranged between the outdoor VRV air-conditioning refrigeration subsystem and the indoor VRV air-conditioning refrigeration subsystem.
The implementation principle of the embodiment is as follows: an electronic expansion valve 13 is arranged between the outdoor VRV air-conditioning refrigeration subsystem and the indoor VRV air-conditioning refrigeration subsystem, the flow of the circulating refrigerant entering the indoor VRV air-conditioning refrigeration subsystem can be adjusted according to the air supply temperature of the indoor unit collected by the tail end indoor unit temperature sensor 11 in the fifth embodiment, the adjusting range is wide, the response is fast, and therefore the air supply temperature of the tail end indoor unit can be adjusted more quickly.
EXAMPLE seven
The outdoor VRV air-conditioning refrigeration subsystem is arranged outside the machine room, and the indoor VRV air-conditioning refrigeration subsystem is arranged in the machine room; the outdoor VRV air conditioning refrigeration subsystem includes a condenser coil 14 and an outdoor fan 15.
The implementation principle of the embodiment is as follows: a plurality of outdoor VRV air conditioner refrigeration subsystems can be installed outside the computer lab with cascaded mode to be linked together with a plurality of indoor VRV air conditioner refrigeration subsystems of installing in the computer lab, and the quantity of indoor VRV air conditioner refrigeration subsystem can be confirmed according to the number of computer lab, make the utility model discloses an air conditioning system is nimble high-efficient, the elasticity is good.
Further, synthesize above-mentioned each embodiment, the utility model discloses an air conditioning system's every terminal indoor VRV air conditioner refrigeration subsystem has all configured heating module and humidification module, convenient installation alone and later maintenance, and every terminal indoor set all can come the nimble air supply humiture of adjusting suitable computer lab equipment operation according to the humiture demand of self. For example, when the air supply temperature T of a certain terminal indoor unit is less than T1 (T1 can be about 10 ℃ in general), the PTC electric heater of the indoor VRV air-conditioning refrigeration subsystem at this terminal is turned on to heat the air supply temperature of the terminal indoor unit, the air supply temperature is continuously detected, when the air supply temperature reaches the set temperature T2 (T2 can be about 14 ℃ in general), the PTC electric heater at the terminal is turned off, and when the air supply temperature is lower than T1 again, the PTC electric heater is turned on again to heat; because the temperature difference between T2 and T1 (such as 4 ℃) exists between the start and stop of the PTC electric heater in the process, the energy waste caused by frequent start and stop of the PTC electric heater can be avoided. In addition, when the multi-split VRV air conditioning system is in operation, sometimes the control precision of an electronic expansion valve at a certain terminal is insufficient, for example, the control opening degree of the electronic expansion valve is small, so that the throttling is too large, when indoor return air passes through an evaporator, a large amount of condensed water is generated, so that the air supply humidity of the indoor unit at the terminal is low, generally, when the air supply humidity RH of the indoor unit is lower than RH1 (RH 1 is generally 40% RH), the humidification module of the indoor VRV air conditioning refrigeration subsystem at the terminal needs to be opened to electrically humidify the air supply of the indoor unit at the terminal, and an isothermal humidification mode is generally adopted, so that the humidification effect is better; when the air supply humidity RH of the tail end indoor unit is higher than RH2 (RH 2 is 60% RH generally), the electric humidifier of the humidification module is closed, and when the air supply humidity reaches the opening condition of the electric humidifier again, the electric humidifier is opened to humidify the air supply of the tail end indoor unit; the humidifier can maintain the air supply humidity of the terminal indoor unit in the optimal operation range interval of the equipment of 40-60% RH, thereby ensuring the reliable and accurate operation of the equipment. Through set up humidification module and heating module in every terminal indoor set to cooperation temperature and humidity sensor and electronic expansion valve, make every terminal indoor set all can come the air supply humiture of nimble, accurately adjusting computer lab equipment operation according to the humiture demand of self, prevent that the humiture of air supply is low excessively and influence the performance of computer lab equipment and lead to equipment trouble even, further avoid excessive humidification and heating and cause the energy extravagant, air conditioning system's energy consumption has been reduced, its efficiency has been improved.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. The utility model provides a VRV air conditioning system suitable for equipment computer lab which characterized in that: the VRV air-conditioning refrigeration system comprises a circulating refrigeration subsystem, an outdoor VRV air-conditioning refrigeration subsystem, at least one indoor VRV air-conditioning refrigeration subsystem and a pipeline system for communicating the circulating refrigeration subsystem, the outdoor VRV air-conditioning refrigeration subsystem and the indoor VRV air-conditioning refrigeration subsystem; the indoor VRV air-conditioning refrigeration subsystem comprises a humidifying module and a heating module.
2. The VRV air conditioning system applicable to equipment rooms according to claim 1, characterized in that: the indoor VRV air-conditioning refrigeration subsystem further comprises an evaporator coil and an indoor fan; the humidifying module and the heating module are arranged between the evaporator coil and the indoor fan.
3. The VRV air conditioning system applicable to equipment rooms according to claim 2, characterized in that: the humidifying module comprises a humidifier and a humidifying sprayer, and the humidifying sprayer is connected with the humidifier.
4. The VRV air conditioning system applicable to equipment rooms according to claim 1, characterized in that: the heating module includes an electric heater.
5. The VRV air conditioning system applicable to equipment rooms according to claim 1, characterized in that: the circulating refrigeration subsystem comprises a variable-frequency compressor, an oil-gas separator, a liquid-gas separator and a sensor which are communicated through the pipeline system, and the variable-frequency compressor is arranged between the oil-gas separator and the liquid-gas separator.
6. The VRV air conditioning system applicable to equipment rooms according to claim 5, characterized in that: the liquid-gas separator is arranged between the variable-frequency compressor and an evaporator coil of the indoor VRV air-conditioning refrigeration subsystem, and the oil-gas separator is arranged between the variable-frequency compressor and the outdoor VRV air-conditioning refrigeration subsystem.
7. The VRV air conditioning system applicable to equipment rooms according to claim 6, characterized in that: the sensor includes high pressure sensor, low pressure sensor, humidity transducer and temperature sensor, high pressure sensor and low pressure sensor set up respectively frequency conversion compressor's high-pressure side and low pressure side, temperature sensor is including setting up terminal indoor set temperature sensor in the indoor VRV air conditioner refrigeration subsystem with set up in frequency conversion compressor with outdoor temperature sensor between the outdoor VRV air conditioner refrigeration subsystem, humidity transducer sets up in the indoor VRV air conditioner refrigeration subsystem.
8. The VRV air conditioning system applicable to equipment rooms according to claim 1, characterized in that: an electronic expansion valve is arranged between the outdoor VRV air-conditioning refrigeration subsystem and the indoor VRV air-conditioning refrigeration subsystem.
9. The VRV air conditioning system applicable to equipment rooms according to claim 8, characterized in that: the outdoor VRV air-conditioning refrigeration subsystem is arranged outside the machine room, and the indoor VRV air-conditioning refrigeration subsystem is arranged in the machine room; the outdoor VRV air-conditioning refrigeration subsystem comprises a condenser coil and an outdoor fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922303499.4U CN211739333U (en) | 2019-12-19 | 2019-12-19 | VRV air conditioning system suitable for equipment room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922303499.4U CN211739333U (en) | 2019-12-19 | 2019-12-19 | VRV air conditioning system suitable for equipment room |
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| Publication Number | Publication Date |
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| CN211739333U true CN211739333U (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922303499.4U Active CN211739333U (en) | 2019-12-19 | 2019-12-19 | VRV air conditioning system suitable for equipment room |
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