CN218348889U - Air conditioning system of frequency conversion machine room - Google Patents
Air conditioning system of frequency conversion machine room Download PDFInfo
- Publication number
- CN218348889U CN218348889U CN202221532092.4U CN202221532092U CN218348889U CN 218348889 U CN218348889 U CN 218348889U CN 202221532092 U CN202221532092 U CN 202221532092U CN 218348889 U CN218348889 U CN 218348889U
- Authority
- CN
- China
- Prior art keywords
- compressor
- pressure
- inlet
- flow device
- conditioning system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The application discloses an air conditioning system of a frequency conversion machine room, which is characterized in that an exhaust port of a compressor in the system is communicated with an inlet of a condenser, an outlet of the condenser is communicated with an inlet of a flow device, an outlet of the flow device is communicated with an inlet of an evaporator, and an outlet of the evaporator is communicated with an air suction port of the compressor; the first pressure sensor is arranged at an air suction port of the compressor and used for collecting the pressure of the air suction port of the compressor, the second pressure sensor is arranged at an air exhaust port of the compressor and used for collecting the pressure of the air exhaust port of the compressor, and the third pressure sensor is arranged at an inlet of the flow device and used for collecting the pressure of the inlet of the flow device; the control unit is used for controlling the rotating speed of the outer fan according to the pressure at the inlet of the flow device, the pressure of the air suction port and the pressure of the air exhaust port of the compressor; by additionally arranging the pressure sensor, a corresponding pressure value is provided for the control unit to regulate and control the rotating speed of the outer fan, and the energy efficiency of the air conditioning system is improved.
Description
Technical Field
The utility model belongs to the technical field of the air conditioning technique and specifically relates to a frequency conversion computer lab air conditioning system is related to.
Background
With the promotion and promotion of a series of informatization projects such as ' internet + ' big data application ', the scale and the quantity of data centers are rapidly developed and become power utilization consumers of an information society. The data center provides great convenience for the development of the modern society, but the power consumption of the data center is high.
The working condition of long piping, high drop often appears in the computer lab air conditioner in the in-service use, and the pipeline pressure loss of computer lab air conditioning system can be very big under this kind of working condition, and the compressor consumption also can increase along with the increase of piping length simultaneously, can lead to the whole consumption of computer lab air conditioner to increase by a wide margin like this, and is not energy-conserving enough.
In order to reduce the energy consumption of the air conditioner, a machine room air conditioner with high energy efficiency ratio is needed. In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art: the energy efficiency of the air conditioner can be improved by adopting an efficient and energy-saving compressor and a fan in a device type selection mode, but an energy efficiency bottleneck exists.
SUMMERY OF THE UTILITY MODEL
The application provides a frequency conversion computer lab air conditioning system through addding pressure sensor to provide corresponding pressure value and be used for the rotational speed of outer fan of the control unit regulation and control, and then can realize outer fan control logic, improve the air conditioning system efficiency.
In a first aspect, an air conditioning system of an inverter machine room is provided, the system includes a compressor, a condenser, a flow device, an evaporator, a first pressure sensor, a second pressure sensor, a third pressure sensor and a control unit, wherein:
the air outlet of the compressor is communicated with the inlet of the condenser, the outlet of the condenser is communicated with the inlet of the flow device, the outlet of the flow device is communicated with the inlet of the evaporator, and the outlet of the evaporator is communicated with the air suction port of the compressor;
the first pressure sensor is arranged at an air suction port of the compressor and used for collecting the pressure of the air suction port of the compressor, the second pressure sensor is arranged at an air exhaust port of the compressor and used for collecting the pressure of the air exhaust port of the compressor, and the third pressure sensor is arranged at an inlet of the flow device and used for collecting the pressure at the inlet of the flow device;
the control unit is respectively in communication connection with the first pressure sensor, the second pressure sensor and the third pressure sensor and is used for controlling the rotating speed of the outer fan according to the pressure at the inlet of the flow device, the pressure at the suction port of the compressor and the pressure at the exhaust port of the compressor.
Optionally, the length of the first connecting air pipe is longer than that of the second connecting air pipe; the length of the first connecting liquid pipe is longer than that of the second connecting liquid pipe.
Optionally, the control unit is specifically configured to:
calculating the difference value of the pressure of the exhaust port and the pressure at the inlet of the flow device, the pressure of the air suction port and the sum of a first set threshold value to obtain a first target pressure;
and controlling the rotating speed of the outer fan through the first target pressure.
Optionally, the system further comprises a first temperature sensor for detecting an outdoor temperature;
the control unit is in communication connection with the first temperature sensor; the control unit is further configured to:
when the outdoor temperature is within a preset temperature range and the rotating speed of the outer fan is greater than a preset rotating speed, acquiring a second target pressure, wherein the second target pressure is the sum of the first target pressure and a second set threshold;
and controlling the rotating speed of the outer fan through the second target pressure.
Optionally, the compressor is an inverter compressor, including but not limited to one of a rotor compressor, a scroll compressor, a screw compressor, and a centrifugal compressor.
Optionally, the system further comprises an oil separator disposed between the compressor and the condenser.
Optionally, the system further includes a dry filter and a gas-liquid separator, a separation inlet of the gas-liquid separator is connected to an outlet side of the evaporator, an inlet of the dry filter is connected to a separation outlet of the gas-liquid separator, and an outlet of the dry filter is connected to a suction port of the compressor.
Optionally, the system further includes a sight glass disposed between the condenser and the flow device.
Optionally, the flow device is an electronic expansion valve, and the external fan is disposed above the condenser.
Frequency conversion computer lab air conditioning system in this application includes compressor, condenser, flow device, evaporimeter, first pressure sensor, second pressure sensor, third pressure sensor and the control unit, wherein: the air outlet of the compressor is communicated with the inlet of the condenser, the outlet of the condenser is communicated with the inlet of the flow device, the outlet of the flow device is communicated with the inlet of the evaporator, and the outlet of the evaporator is communicated with the air suction port of the compressor; the first pressure sensor is arranged at an air suction port of the compressor and used for collecting the pressure of the air suction port of the compressor, the second pressure sensor is arranged at an air exhaust port of the compressor and used for collecting the pressure of the air exhaust port of the compressor, and the third pressure sensor is arranged at an inlet of the flow device and used for collecting the pressure at the inlet of the flow device; the control unit is respectively in communication connection with the first pressure sensor, the second pressure sensor and the third pressure sensor and is used for controlling the rotating speed of the external fan according to the pressure at the inlet of the flow device, the pressure at the air suction port of the compressor and the pressure at the air exhaust port of the compressor; the pressure sensor is arranged at a specific position of the machine room air conditioning system, so that a corresponding pressure value is provided for the control unit to regulate and control the rotating speed of the outer fan, a new outer fan control logic is realized, the energy efficiency of the system is improved, and the energy-saving operation of the air conditioning system is realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the background art of the present application, the drawings required to be used in the embodiments or the background art of the present application will be described below.
Fig. 1 is a schematic structural diagram of an air conditioning system of an inverter room according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of an air conditioning system of a long-piping inverter room according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein may be combined with other embodiments.
The embodiments of the present application are described below with reference to the drawings.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an inverter room air conditioning system provided in an embodiment of the present application, and as shown in fig. 1, the inverter room air conditioning system 100 includes:
an exhaust port of the compressor 110 is communicated with an inlet of the condenser 120, an outlet of the condenser 120 is communicated with an inlet of the flow device 130, an outlet of the flow device 130 is communicated with an inlet of the evaporator 140, and an outlet of the evaporator 140 is communicated with an intake port of the compressor 110;
the first pressure sensor 150 is disposed at a suction port of the compressor 110 to collect a suction port pressure of the compressor 110, the second pressure sensor 160 is disposed at a discharge port of the compressor 110 to collect a discharge port pressure of the compressor 110, and the third pressure sensor 170 is disposed at an inlet of the flow device 130 to collect an inlet pressure of the flow device 130;
the control unit 180 is communicatively connected to the first pressure sensor 150, the second pressure sensor 160, and the third pressure sensor 170, respectively, and controls the rotation speed of the external blower based on the inlet pressure of the flow device 130, the suction pressure of the compressor 110, and the discharge pressure.
The control unit 180 may communicate with the pressure sensors through a wired connection or a wireless connection, or may communicate with other units (such as the compressor 110 and the condenser 120), and the connection relationship between the control unit 180 and the other units is not shown in fig. 1. The control unit 180 may be any type of controller or processor that can obtain information from other units, perform data processing and system control.
In the embodiment of the present application, pressure sensors are respectively disposed on the exhaust port of the compressor 110, in front of the flow device 130, and on the suction port of the compressor 110, and the machine set is connected into a closed loop to collect pressure values at various places.
The compressor may be an inverter compressor, such as a rotor compressor, a scroll compressor, a screw compressor, or a centrifugal compressor, and the like, which is not limited in this application.
In an alternative embodiment, the exhaust port of the compressor 110 is communicated with the inlet of the condenser 120 through a first connection pipe, the outlet of the condenser 120 is communicated with the inlet of the flow device 130 through a first connection pipe, the outlet of the evaporator 140 is communicated with the suction port of the compressor 110 through a second connection pipe, and the inlet of the evaporator 140 is communicated with the outlet of the flow device 130 through a second connection pipe.
Further optionally, the length of the first connecting air pipe is longer than that of the second connecting air pipe; the length of the first connection liquid pipe is longer than that of the second connection liquid pipe.
Specifically, a schematic structural diagram of an inverter room air conditioning system with a long pipe shown in fig. 2 may be seen, where the inverter room air conditioning system includes:
the condenser 2, the flow device 3, the evaporator 4, the pressure sensor 5 (including the second pressure sensor 5-a, the third pressure sensor 5-b, and the first pressure sensor 5-c), the first connecting gas pipe 6, and the first connecting liquid pipe 7, and the second connecting gas pipe, and the second connecting liquid pipe. The control unit is not shown here, and the outer fan speed control can be realized based on the system structure and the control unit.
An exhaust port of the compressor 1 is communicated with an inlet of the condenser 2 through a long first connecting air pipe 6, an outlet of the condenser 2 is communicated with an inlet of the flow device 3 through a long first connecting liquid pipe 7, an outlet of the flow device 3 is communicated with an inlet of the evaporator 4, an outlet of the evaporator 4 is communicated with an air suction port of the compressor 1, an outlet of the evaporator 4 is communicated with the air suction port of the compressor 1 through a second connecting air pipe, an inlet of the evaporator 4 is communicated with an outlet of the flow device 2 through the second connecting air pipe, wherein the length of the first connecting air pipe 6 is longer than that of the second connecting air pipe; the length of the first connecting liquid pipe 7 is longer than the length of the second connecting liquid pipe;
a pressure sensor 5-a is arranged at the exhaust port of the compressor 1, a pressure sensor 5-b is arranged at the inlet of the flow device, and a pressure sensor 5-c is arranged at the suction port of the compressor.
In an optional implementation manner, the control unit is specifically configured to:
calculating the difference between the pressure of the exhaust port and the pressure at the inlet of the flow device, the pressure of the air suction port and the sum of a first set threshold value to obtain a first target pressure;
and controlling the rotating speed of the outer fan through the first target pressure.
The calculation of the first target pressure by the control unit in the embodiment of the present application is actually obtained by calculating the sum of the difference between the pressure at the exhaust port and the pressure at the inlet of the flow device, the current evaporation pressure, and the first set threshold. In the embodiment of the application, the pressure of the air suction port of the compressor in the air conditioning system is approximate to the evaporation pressure, so that the pressure Pe of the air suction port obtained by real-time measurement through a pressure sensor arranged at the air suction port of the compressor is selected to represent the current evaporation pressure, and the current evaporation pressure is provided for the control unit to calculate the corresponding first target pressure.
Specifically, the inlet pressure (suction port pressure) Pb of the flow device and the outlet pressure (discharge port pressure) Pa of the compressor may be collected by providing sensors at corresponding positions, and the control unit may calculate a difference between the outlet pressure Pa of the compressor and the inlet pressure Pb of the flow device to obtain a pressure difference (Pa-Pb).
In the embodiment of the application, a first set threshold of the air conditioning system can be further obtained, a first target pressure is confirmed according to the pressure difference, the pressure of the air suction port and the first set threshold, and the rotating speed of an outer fan of the air conditioning system is controlled through the target pressure value. The first set threshold is a parameter value set for calculating the first target pressure, and may be set as needed, which is not limited in the embodiment of the present application.
Specifically, the sum of the suction port pressure Pe, the pressure difference (Pa-Pb), and the first set threshold a may be calculated to obtain a first target pressure Pc, so as to control the rotation speed of the external fan at the first target pressure Pc, where the rotation speed of the external fan corresponding to the first target pressure Pc is the first target rotation speed. I.e. can be understood as: and setting a value of Pc = Pe + (Pa-Pb) + A, so as to control the outer fan to operate at a first target rotating speed corresponding to Pc.
In one embodiment, the first set threshold a in the embodiment of the present application has a value range of 1 to 3bar.
The pressure set value of the conventional variable frequency air conditioner for controlling the rotating speed of the outer fan is generally 18-21 bar, so that the rotating speed of the outer fan is low, and in the embodiment of the application, the pressure sensor is arranged at a specific position to provide a corresponding pressure value for the control unit to regulate and control the rotating speed of the outer fan, and a smaller first set threshold value A is arranged in combination to determine a target pressure value which is relatively lower than the conventional set value so as to control the rotating speed of the outer fan, so that the rotating speed of the outer fan is improved, the rotating speed of the compressor is reduced, the energy efficiency of the whole machine is greatly improved, and the purpose of saving energy is achieved.
In an optional embodiment, the system further comprises a first temperature sensor for detecting an outdoor temperature;
the control unit is in communication connection with the first temperature sensor; the control unit is further configured to:
when the outdoor temperature is within a preset temperature range and the rotating speed of the outer fan is greater than a preset rotating speed, acquiring a second target pressure, wherein the second target pressure is the sum of the first target pressure and a second set threshold;
and controlling the rotating speed of the outer fan through the second target pressure.
Specifically, a first temperature sensor, i.e., an outdoor temperature sensor, may be provided in the air conditioning system to collect the outdoor temperature. On the basis of the foregoing embodiment, the first temperature sensor may provide the current outdoor temperature to the control unit. When the control unit detects that the outdoor temperature T is within the preset temperature range (e.g., T1 is greater than or equal to T2 is satisfied), and the current rotation speed of the outer fan is greater than the preset rotation speed (AA% rotation speed), different control logics may be employed, that is, a second target pressure is calculated, so as to control the outer fan to operate at a corresponding second target rotation speed by the second target pressure.
Wherein the second target pressure may be derived on the basis of the first target pressure. The specific calculation method of the second target pressure may be set as needed, such as setting a parameter value (which may be a second set threshold value) set for calculating the second target pressure. Optionally, a specific value may be increased or decreased on the basis of the first target pressure, or the first target pressure may be adjusted by a weight parameter to obtain a second target pressure, and the like, which is not limited in the embodiment of the present application.
Specifically, the first target pressure may be Pc, and the second set threshold is N, so that the second target pressure is (Pc + N).
The T1 and the T2 can be adjusted and controlled according to a specific model, and the preset rotating speed and the second set threshold value N are also adjusted and set according to a specific external fan. In some embodiments, the preset rotation speed may be set to 80%, because the power of the external fan is proportional to the rotation speed of the external fan by the power of 3, when the rotation speed of the external fan is higher than a certain rotation speed, the wind volume increase amplitude is smaller than the power increase amplitude, and at this time, although the rotation speed of the external fan is increased to reduce the rotation speed of the compressor, the decrease amplitude is not as great as the power increase amplitude of the external fan, so that in this embodiment of the present application, the outdoor temperature is detected by the first temperature sensor, so as to control the external fan by adopting a higher pressure setting value of the external fan under this condition, thereby achieving overall energy saving. Specifically, in the variable frequency machine room air conditioning system in the embodiment of the application, the first temperature sensor is additionally arranged to detect the outdoor temperature and provide the outdoor temperature to the control unit for controlling the outer fan, different logics can be adopted in different temperature areas, and when T1 is not less than T and not more than T2, the target pressure value for controlling the outer fan can be further increased to control the reduction of the rotating speed and the power of the outer fan, so that the overall energy conservation is realized.
The air conditioning system of the inverter room in the embodiment of the application can be further configured with components such as an oil separator, a drying filter, a liquid viewing mirror, a gas-liquid separator and the like according to actual conditions, and the components are not limited here.
Optionally, the system further comprises an oil separator disposed between the exhaust port of the compressor and the inlet of the condenser.
Optionally, the system further includes a dry filter and a gas-liquid separator, a separation inlet of the gas-liquid separator is connected to an outlet side of the evaporator, an inlet of the dry filter is connected to a separation outlet of the gas-liquid separator, and an outlet of the dry filter is connected to an air suction port of the compressor.
Optionally, the system further includes a liquid observation mirror, and the liquid observation mirror is disposed between the condenser and the flow device.
In an alternative embodiment, the flow device is an electronic expansion valve, and the external fan is disposed above the condenser.
In the embodiment of the present application, devices or modules in the system may also be adjusted or added as needed to implement corresponding functions, which is not limited herein. In addition, in the embodiment of the application, a sensor in the system may be adjusted or added as needed to achieve required data acquisition and monitoring, so as to provide reasonable control for the system or the control unit, which is not limited herein.
In one embodiment, the control method involved in the embodiment of the present application may be implemented on the basis of a system as shown in fig. 1 or fig. 2.
The working conditions of long tubing and high fall often appear in the actual application of the air conditioner in the machine room, the pressure loss of the pipeline of the air conditioning system in the machine room under the working conditions can be very large, and meanwhile, the power consumption of the compressor can also be increased along with the increase of the length of the tubing, so that the whole power consumption of the air conditioner in the machine room is greatly increased, and the energy is not saved enough.
And frequency conversion computer lab air conditioning system in this application can be through addding pressure sensor to provide corresponding pressure value and be used for the rotational speed of outer fan of the control unit regulation and control, and then can realize outer fan control logic, improve air conditioning system efficiency.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the division of the module is only one logical division, and other divisions may be possible in actual implementation, for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not performed. The shown or discussed mutual coupling, direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
Modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When it comes to the implementation in software, it may be partly implemented in the form of a computer program product, e.g. the functionality implemented by the control unit described above. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are wholly or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on or transmitted over a computer-readable storage medium. The computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)), or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more of the available media. The usable medium may be a read-only memory (ROM), or a Random Access Memory (RAM), or a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape, a magnetic disk, or an optical medium, such as a Digital Versatile Disk (DVD), or a semiconductor medium, such as a Solid State Disk (SSD).
Claims (10)
1. The utility model provides a frequency conversion computer lab air conditioning system which characterized in that, the system includes compressor, condenser, flow device, evaporimeter, first pressure sensor, second pressure sensor, third pressure sensor and the control unit, wherein:
the exhaust port of the compressor is communicated with the inlet of the condenser, the outlet of the condenser is communicated with the inlet of the flow device, the outlet of the flow device is communicated with the inlet of the evaporator, and the outlet of the evaporator is communicated with the air suction port of the compressor;
the first pressure sensor is arranged at an air suction port of the compressor and used for collecting the pressure of the air suction port of the compressor, the second pressure sensor is arranged at an air exhaust port of the compressor and used for collecting the pressure of the air exhaust port of the compressor, and the third pressure sensor is arranged at an inlet of the flow device and used for collecting the pressure at the inlet of the flow device;
the control unit is respectively in communication connection with the first pressure sensor, the second pressure sensor and the third pressure sensor and is used for controlling the rotating speed of the outer fan according to the pressure at the inlet of the flow device, the pressure of the air suction port of the compressor and the pressure of the air exhaust port of the compressor.
2. The inverter room air conditioning system of claim 1, wherein the exhaust port of the compressor is communicated with the inlet of the condenser through a first connecting air pipe, the outlet of the condenser is communicated with the inlet of the flow device through a first connecting liquid pipe, the outlet of the evaporator is communicated with the suction port of the compressor through a second connecting air pipe, and the inlet of the evaporator is communicated with the outlet of the flow device through a second connecting liquid pipe.
3. The inverter room air conditioning system of claim 2, wherein the length of the first connecting air pipe is longer than the length of the second connecting air pipe; the length of the first connecting liquid pipe is longer than that of the second connecting liquid pipe.
4. The inverter room air conditioning system of claim 3, wherein the control unit is specifically configured to:
calculating the difference value of the pressure of the exhaust port and the pressure at the inlet of the flow device, the pressure of the air suction port and the sum of a first set threshold value to obtain a first target pressure;
and controlling the rotating speed of the outer fan through the first target pressure.
5. The inverter room air conditioning system of claim 4, further comprising a first temperature sensor for detecting an outdoor temperature;
the control unit is in communication connection with the first temperature sensor; the control unit is further configured to:
when the outdoor temperature is within a preset temperature range and the rotating speed of the outer fan is greater than a preset rotating speed, acquiring a second target pressure, wherein the second target pressure is the sum of the first target pressure and a second set threshold;
and controlling the rotating speed of the outer fan through the second target pressure.
6. The inverter room air conditioning system of claim 1, wherein the compressor is an inverter compressor, including but not limited to one of a rotor compressor, a scroll compressor, a screw compressor, and a centrifugal compressor.
7. The inverter room air conditioning system of claim 1, further comprising an oil separator disposed between the compressor and the condenser.
8. The inverter room air conditioning system of claim 7, further comprising a dry filter and a gas-liquid separator, wherein a separation inlet of the gas-liquid separator is connected with an outlet side of the evaporator, an inlet of the dry filter is connected with a separation outlet of the gas-liquid separator, and an outlet of the dry filter is connected with a suction port of the compressor.
9. The inverter room air conditioning system of claim 8, further comprising a sight glass disposed between the condenser and the flow device.
10. The inverter room air conditioning system of claim 1, wherein the flow device is an electronic expansion valve, and the external fan is disposed above the condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221532092.4U CN218348889U (en) | 2022-06-17 | 2022-06-17 | Air conditioning system of frequency conversion machine room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221532092.4U CN218348889U (en) | 2022-06-17 | 2022-06-17 | Air conditioning system of frequency conversion machine room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218348889U true CN218348889U (en) | 2023-01-20 |
Family
ID=84912350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221532092.4U Active CN218348889U (en) | 2022-06-17 | 2022-06-17 | Air conditioning system of frequency conversion machine room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218348889U (en) |
-
2022
- 2022-06-17 CN CN202221532092.4U patent/CN218348889U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101101239B (en) | Apparatus and method for testing air conditioner | |
| CN109869867B (en) | Control method and device of electric appliance, storage medium and electric appliance | |
| CN100523635C (en) | Intelligent cluster control system of central air-conditioning | |
| CN105004002B (en) | Energy-saving control system and method for central air conditioning cooling water system | |
| WO2016065874A1 (en) | Method for controlling constant air volume of electrical device with air exhaust or air supply function | |
| CN109751727A (en) | A kind of air conditioning control method, device and air conditioner | |
| CN201003835Y (en) | Energy saving controller for central air conditioner | |
| CN108489011B (en) | Operation control method and device, air-conditioning water machine system and storage medium | |
| CN106979717B (en) | The control method and device of cooling tower supply water temperature setting value | |
| CN104792072B (en) | Air-conditioner set and its control method of refrigerant flow | |
| CN110207316A (en) | Defrosting control method, device and air conditioner | |
| CN107917516A (en) | A kind of control method and device of outdoor fan of air-conditioner rotating speed | |
| CN111089406A (en) | Fan coil air-out control method and device, controller and air conditioning unit | |
| CN114459133A (en) | Energy-saving control method and energy-saving control system for central air-conditioning system | |
| CN115682453A (en) | Operation control method and device of water chilling unit, electronic equipment and medium | |
| CN114279046B (en) | Defrosting control method and controller suitable for modular multi-split air conditioning system and air conditioner | |
| CN201547915U (en) | Central air-conditioning energy-saving device | |
| CN106949611A (en) | A kind of air-conditioner managing device and the air-conditioner with the managing device | |
| CN102384558B (en) | Capacity control method for direct-expansion-type variable air conditioner system | |
| CN218348889U (en) | Air conditioning system of frequency conversion machine room | |
| CN112032938B (en) | Air conditioning system | |
| CN105026855B (en) | The method and system that the control shakiness caused by impeller stall is detected and recovered | |
| CN105571089A (en) | Energy-saving intelligent ecological central air conditioning device | |
| CN217109938U (en) | Air conditioner energy efficiency analysis and adjustment system | |
| CN203024338U (en) | Energy-saving control device of central air conditioner and central air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |