CN202587712U - An energy-saving double circulation system in a machine room - Google Patents

Abstract

The utility model relates to an energy-saving double circulation system in a machine room. The system comprises a heat exchanger, a heat exchanging cabinet, and energy-saving cabinets. The energy-saving cabinet comprises a cabinet upper wind cavity, an equipment installing unit, a cabinet lower wind cavity, a temperature-controlled wind-exhausting unit, and a temperature-controlled wind-supplying unit. A plurality of energy-saving cabinets are connected with one another in series and then is connected with the heat exchanging cabinet. The cabinet lower wind cavity passes cold wind with the lower wind cavity of the heat exchanging cabinet, and having been heat exchanged by the equipment installing unit, the cold wind in the cabinet lower wind cavity forms hot wind in the upper wind cavity of the heat exchanging cabinet. The cabinet upper wind cavity passes hot wind with the upper wind cavity of the heat exchanging cabinet, and thus an enclosed internal circulation wind channel is formed. An indoor evaporator is connected with an outdoor condenser of the heat exchanger outside the machine room through a refrigerant pipeline so as to form an external circulation pipeline. The beneficial effects of the energy-saving double circulation system are that the system is a refrigeration internal circulation of accurate equipment temperature control which just aims at the temperature-controlled equipment, that special control can be achieved according to temperature heat dissipation requirement needed by different devices, and that each energy-saving cabinet can be controlled independently.

Description

Energy-saving double circulation system in the computer room

technical field

The utility model relates to the energy-saving field of electric equipment in a machine room, in particular to an energy-saving double-cycle system for a machine room. the

Background technique

The main features of the electrical equipment room are: there are a large number of electrical equipment built in the machine room, and the electrical equipment runs unattended for a long time. The time for personnel in the computer room to actually enter the computer room for equipment maintenance is very short. In order to ensure that the electrical equipment in the computer room works normally in a suitable environment, an air conditioner is installed in the computer room to adjust the ambient temperature in the computer room and ensure that all kinds of electrical equipment in the computer room are in a suitable working environment temperature. Since the electrical equipment in the computer room runs 24 hours a day and the air conditioner is turned on all the year round, the power consumption of the computer room air conditioner accounts for a high proportion of the overall power consumption of the computer room. With the rapid development of the economy, the number of electrical equipment rooms is also increasing, and human requirements for energy and environmental protection are also increasing. Therefore, the energy consumption of air conditioners has increasingly attracted people's attention. the

According to the existing thermal insulation standards for building design, about 40% of the power consumption of the air conditioners used for the environmental temperature control of the computer room is used for heat preservation and heat dissipation of the house, and 60% of the heat and cold energy generated by the computer room air conditioner will be lost. It is used in the process of passing through the open space of the room to reach the surface of the equipment cabinet shell. In the traditional computer room indoor layout, electrical equipment is placed in a closed cabinet, and the equipment absorbs energy from the computer room air conditioner through the open space through the pores on the cabinet panel. Since the computer room is unattended all the year round, the temperature control power consumption of the computer room air conditioner in the open space of the computer room caused by the building design insulation standards becomes invalid temperature control power consumption. The environmental temperature control status of the traditional computer room is: 1. The cooling redundancy caused by the high temperature in the local area caused by the dead angle of the temperature control air circulation in the computer room; 3. Cooling capacity caused by radiant heat caused by imperfect building insulation. The traditional computer room temperature control system equipment temperature control circulation method is not directly aimed at the temperature-controlled equipment, but an open circulation method for the overall space of the computer room. the

Utility model content

The purpose of this utility model is to overcome the deficiencies of the existing technology, and provide an energy-saving dual-circulation system in the computer room, which changes the temperature control method of the traditional computer room air conditioner for the entire space of the computer room, and directly supplies energy to the energy-saving cabinet for installation at the first time. The equipment unit realizes local temperature control, which improves the utilization rate of power resources for the temperature control of the computer room, reduces the power consumption of the temperature control of the computer room, and realizes that the cooling capacity of the temperature control of the equipment in the computer room is less than the heat generated by the equipment. the

The purpose of this utility model is accomplished through the following technical solutions. This machine room energy-saving double circulation system includes a heat exchanger arranged outside the machine room, a heat exchange cabinet and an energy-saving cabinet arranged in the machine room, and the energy-saving cabinet includes an upper air cavity of the cabinet, an equipment installation unit, a lower air cavity of the Exhaust unit and temperature-controlled air supply unit. The upper side plate of the energy-saving cabinet is provided with an upper air volume transmission port, and the lower part of the side plate is provided with an air volume lower transmission port. The temperature-controlled exhaust unit is located above the equipment installation unit for The heat emitted by the equipment unit is discharged to the upper air chamber of the cabinet in a controlled manner; the temperature-controlled air supply unit is arranged under the equipment installation unit to send the cold air in the lower air chamber of the cabinet to the equipment installation unit in a controlled manner; multiple energy-saving cabinets After being connected in series, it is connected with the heat exchange cabinet. The heat exchange cabinet includes an upper air cavity, a heat exchange equipment unit and a lower air cavity. The indoor evaporator of the heat exchanger is installed in the heat exchange equipment unit, and the hot air in the upper air cavity of the heat exchange cabinet passes through the indoor After heat exchange by the evaporator, cold air is formed in the lower air chamber. The lower air chamber of each energy-saving cabinet and the lower air chamber of the heat exchange cabinet are connected to each other through the lower air transmission port and transmit cold air. The cold air in the lower air chamber of each cabinet is heat exchanged through the equipment installation unit. Finally, hot air is formed in the upper air chamber of the heat exchange cabinet, and the upper air chamber of each energy-saving cabinet and the upper air chamber of the heat exchange cabinet communicate with each other through the air volume upper transmission port and transfer hot air, thereby forming a closed internal circulation air channel; indoor evaporator The external circulation pipe of the heat exchange system is formed by connecting the refrigerant pipe with the outdoor condenser of the heat exchanger outside the machine room. the

As a preference, an air-conditioning evaporator is installed in the heat exchange equipment unit, and the air-conditioning evaporator is arranged on one side of the indoor evaporator of the heat exchanger. Circulation pipes for heat dissipation. the

Preferably, the temperature-controlled exhaust unit includes a main exhaust fan, at least one temperature-controlled air outlet, and at least one air volume controller A associated with the temperature-controlled air outlet to control the air volume. the

Preferably, the temperature-controlled air supply unit includes a main blower, at least one temperature-controlled air supply port, and at least one air volume controller B associated with the temperature-controlled air supply port for air volume control. the

As a preference, the control panel of the temperature-controlled exhaust unit is respectively provided with maintenance air outlets A. the

As a preference, the control panel of the temperature-controlled air supply unit is respectively provided with maintenance air supply ports B. the

The beneficial effects of the utility model are: the utility model is only for the precise temperature-controlled refrigeration internal circulation of the temperature-controlled equipment, which can be specially controlled according to the temperature and heat dissipation requirements of different equipment, and each energy-saving cabinet can be independently controlled; Specifically: 1. Eliminate the transmission loss of air-conditioning cold energy in the computer room space, and do not need to refrigerate the entire room on a large scale; 2. Reduce the diffuse release of high-temperature heat emitted by the equipment in the computer room indoor space; Equipment temperature control redundancy caused by uneven heat; 4. Eliminates the dead angle of temperature control air circulation in the computer room. the

Description of drawings

Fig. 1 is the indoor plane layout of the machine room of the utility model embodiment 1;

Fig. 2 is the indoor plane layout of the machine room of the utility model embodiment 2;

Fig. 3 is the side view structural representation of energy-saving cabinet in the utility model;

Fig. 4 is the structural representation of temperature control exhaust unit in the utility model;

Fig. 5 is a schematic structural view of the temperature-controlled air supply unit in the present invention. the

The numbers in the drawings are: heat exchanger 1, indoor evaporator 1-1, energy-saving cabinet 2, cabinet upper air cavity 2-1, equipment installation unit 2-2, cabinet lower air cavity 2-3, temperature-controlled exhaust unit 2-4, main exhaust fan 2-4-1, temperature control exhaust port 2-4-2, air volume controller A2-4-3, maintenance air supply port A2-4-4, air volume upper transmission port 2-5, Lower air volume transmission port 2-6, temperature control air supply unit 2-7, main air supply fan 2-7-1, temperature control air supply port 2-7-2, air volume controller B2-7-3, maintenance air supply port B2-7 -4, heat exchange cabinet 3, upper air cavity 3-1, heat exchange equipment unit 3-2, lower air cavity 3-3, air conditioner 4, air conditioner evaporator 4-1, machine room 5. the

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and embodiments:

Embodiment 1: As shown in the figure, this machine room energy-saving dual-circulation system includes a heat exchanger 1 arranged outside the machine room 5, a heat exchange cabinet 3 and an energy-saving cabinet 2 arranged in the machine room 5, and the energy-saving cabinet 2 is It includes the upper air cavity 2-1 of the cabinet, the equipment installation unit 2-2, the lower air cavity 2-3 of the cabinet, the temperature control exhaust unit 2-4 and the temperature control air supply unit 2-7, and the temperature control exhaust unit 2- 4 including the main exhaust fan 2-4-1, at least one temperature-controlled air outlet 2-4-2, maintenance air outlet A2-4-4, and the air outlet associated with the temperature-controlled air outlet 2-4-2 At least one air volume controller A2-4-3 for air volume control. The temperature-controlled air supply unit 2-7 includes a main air blower 2-7-1, at least one temperature-controlled air supply port 2-7-2, an inspection air supply port B2-7-4 and the temperature-controlled air supply port 2-7-4. 7-2 Associated at least one air volume controller B2-7-3 for air volume control. The temperature-controlled exhaust unit 2-4 is arranged above the equipment installation unit 2-2, and is used to discharge the heat emitted by the equipment unit to the upper air chamber 2-1 of the cabinet in a controlled manner; the temperature-controlled air supply unit 2-7 is arranged on the equipment The bottom of the installation unit 2-2 is used to send the cold air in the lower air chamber 2-3 of the cabinet to the equipment installation unit 2-2 in a controlled manner. According to the monitoring data of the temperature sensor in the cabinet, the air volume is controlled automatically or manually, and the energy is more accurately distributed to each equipment installation unit in the cabinet according to the demand, so as to reduce the energy waste of air conditioning energy in the energy-saving cabinet with less equipment installed in the equipment unit . The temperature-controlled discharge unit can be an independent single unit or be composed of multiple separate units in the cabinet. The equipment installation unit 2-2 is used to place the electrical equipment in the computer room that requires ambient temperature, such as storage batteries, transmission equipment, cable TV equipment, wireless transmission equipment, rectifying power supplies, server hosts, routers and other electrical equipment. the

The upper part of the side plate of the energy-saving cabinet 2 is provided with an upper air volume transmission port 2-5, and the lower part of the side plate is provided with an air volume lower transmission port 2-6. Before the equipment is used, it is confined inside the energy-saving cabinet, which reduces the loss of energy in the free space of the equipment room. Multiple energy-saving cabinets 2 are connected in series to form a row of energy-saving cabinets, and multiple rows of energy-saving cabinets are connected in parallel to form a group of energy-saving cabinets. The heat exchange cabinet 3 includes an upper wind cavity 3-1, a heat exchange equipment unit 3-2 and a lower wind cavity 3-3, the indoor evaporator 1-1 of the heat exchanger 1 is installed in the heat exchange equipment unit 3-2, and the heat exchange cabinet The hot air in the upper air chamber 3-1 of 3 passes through the indoor evaporator 1-1 to form cold air in the lower air chamber 3-3, and the lower air chamber 2-3 of each energy-saving cabinet 2 and the lower air chamber 3-3 of the heat exchange cabinet 3 3. The lower transmission ports 2-6 of the air volume communicate with each other and transmit the cold air. The cold air in the lower air chamber 2-3 of each cabinet is heat-exchanged by the equipment installation unit 2-2 to form hot air in the upper air chamber 3-1 of the heat exchange cabinet 3. The cabinet upper air cavity 2-1 of an energy-saving cabinet 2 and the upper air cavity 3-1 of the heat exchange cabinet 3 communicate with each other through the air volume upper transmission port 2-5 and transfer hot air, thereby forming a closed internal circulation air channel; the indoor evaporator 1 -1 is connected with the outdoor condenser of the heat exchanger 1 outside the machine room through the refrigerant pipeline to form the external circulation pipeline of the heat exchange system. the

Working principle: when working in the exhaust mode, it starts and controls the speed of the main exhaust fan 2-4-1 accordingly according to the equipment temperature setting requirements in the equipment installation unit 2-2. Discharge the high-temperature heat in the equipment installation unit 2-2 to the exhaust channel on the upper part of the energy-saving cabinet. When working in the air supply mode, it correspondingly starts and controls the rotating speed of the main air supply fan 2-7-1 according to the equipment temperature requirement in the equipment installation unit 2-2. The low-temperature cold air from the air supply channel area at the bottom of the energy-saving cabinet is sent to the equipment installation unit 2-2 to cool the equipment installation unit 2-2. When working in the manual inspection mode, the temperature-controlled exhaust unit 2-4 and the temperature-controlled air supply unit 2-7 send cold air to the cabinet from the inspection air supply port A2-4-4 and inspection air supply port B2-7-4 on the panel Send out directly in front to improve the working environment temperature of maintenance personnel. the

Embodiment 2: As shown in Figure 2, the difference from Embodiment 1 is that: the air-conditioning evaporator 4-1 is installed in the heat exchange equipment unit 3-2, and the air-conditioning evaporator 4-1 is arranged in the heat exchange One side of the indoor evaporator 1-1 of the air conditioner, the air conditioner evaporator 4-1 is connected with the outdoor condenser of the air conditioner 4 outside the machine room 5 through a pipeline to form a circulating pipeline for auxiliary heat dissipation. When the heat exchange efficiency is not high, the air conditioner 4 acts as an auxiliary refrigeration system to perform auxiliary refrigeration treatment on the wind entering the lower wind chamber 3-3 in the heat exchange equipment unit 3-2. the

Principle analysis of equipment energy saving system:

Laboratory environmental equipment temperature control test report

Equipment Name: Mobile Communication Base Station

Equipment model: ERICSSON: RBS 2206

Equipment nominal working environment temperature: indoor base station working environment temperature +5~40℃

The actual temperature test report when the equipment is fully loaded:

Indoor ambient temperature outside the cabinet Temperature of the air outlet on the top of the cabinet

25°C 40°C

30°C 45°C

35°C 50°C

40°C 55°C

50°C 68°C

*Conclusion When the equipment is fully loaded, the temperature difference between the outside of the cabinet and the exhaust outlet of the cabinet is △=15°C. the

Since the input heat source of the heat exchanger of the energy-saving system is taken from the energy-saving cabinet instead of the machine room, the inlet air temperature of the heat exchanger is as high as 40 degrees, and the average maximum outdoor temperature in summer is only more than 30 degrees, which greatly improves the heat transfer. The heat exchange efficiency of the device can make the heat exchange energy-saving and work all year round. the

It can be seen from the above technical scheme that the energy-saving dual-circulation system of the computer room of the present invention can provide cold and heat energy to the equipment installation unit in the energy-saving cabinet in a targeted manner, and control the temperature of the application equipment in the area of the equipment installation unit, that is, to realize "internal cooling". "type" temperature control process. The utility model saves the power consumption required for inactive temperature control in non-equipment areas. Therefore, the utility model improves the utilization rate of the temperature control power resources in the computer room, reduces the ineffective power consumption of the air conditioner, and reduces the temperature control cost of the computer room. Furthermore, the energy-saving cabinet of the utility model has the advantages of strong adaptability to the installation of applied electrical equipment, easy standardized production, and easy replacement of traditional cabinets. the

Except for the above-mentioned embodiments, all technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present utility model. the

Claims (6)

1. An energy-saving dual-circulation system for a computer room, characterized in that it includes a heat exchanger (1) arranged outside the computer room (5), a heat exchange cabinet (3) and an energy-saving cabinet (2) arranged in the computer room (5) , the energy-saving cabinet (2) includes a cabinet upper air cavity (2-1), an equipment installation unit (2-2), a cabinet lower air cavity (2-3), a temperature control exhaust unit (2-4) and a temperature control The air supply unit (2-7), the upper side plate of the energy-saving cabinet (2) is provided with the air volume upper transmission port (2-5), the lower part of the side plate is provided with the air volume lower transmission port (2-6), the temperature control exhaust unit (2-4) is set above the equipment installation unit (2-2), and is used to discharge the heat emitted by the equipment unit to the upper air cavity (2-1) of the cabinet in a controlled manner; the temperature-controlled air supply unit (2-7) It is arranged under the equipment installation unit (2-2), and is used to send the cold air in the lower air cavity (2-3) of the cabinet to the equipment installation unit (2-2) in a controlled manner; multiple energy-saving cabinets (2) are connected in series After being connected, it is connected with the heat exchange cabinet (3). The heat exchange cabinet (3) includes the upper air cavity (3-1), the heat exchange equipment unit (3-2) and the lower air cavity (3-3). The heat exchange equipment unit ( 3-2) The indoor evaporator (1-1) with the heat exchanger (1) installed inside, the hot air in the upper wind chamber (3-1) of the heat exchange cabinet (3) is heat exchanged through the indoor evaporator (1-1) Finally, cold air is formed in the lower air cavity (3-3), and the lower air cavity (2-3) of each energy-saving cabinet (2) and the lower air cavity (3-3) of the heat exchange cabinet (3) pass through the air volume lower transmission port (2 -6) communicate with each other and transfer cold air, the cold air in the lower air cavity (2-3) of each cabinet passes through the equipment installation unit (2-2) after heat exchange, and forms hot air in the upper air cavity (3-1) of the heat exchange cabinet (3) , the cabinet upper air cavity (2-1) of each energy-saving cabinet (2) and the upper air cavity (3-1) of the heat exchange cabinet (3) communicate with each other through the air volume upper transmission port (2-5) and transfer hot air, thus A closed internal circulation air duct is formed; the indoor evaporator (1-1) is connected with the outdoor condenser of the heat exchanger (1) outside the machine room through a refrigerant pipeline to form an external circulation pipeline of the heat exchange system. 2. The energy-saving dual-circulation system of the computer room according to claim 1, characterized in that: the heat exchange equipment unit (3-2) is equipped with an air-conditioning evaporator (4-1), and the air-conditioning evaporator (4-1 ) is installed on the side of the indoor evaporator (1-1) of the heat exchanger, and the air conditioner evaporator (4-1) is connected to the outdoor condenser of the external air conditioner (4) in the machine room (5) through pipes to form an auxiliary cooling cycle pipeline. 3. The energy-saving dual-circulation system for a computer room according to claim 1, characterized in that: the temperature-controlled exhaust unit (2-4) includes a main exhaust fan (2-4-1), at least one temperature-controlled exhaust fan outlet (2-4-2), and at least one air volume controller A (2-4-3) associated with the temperature-controlled air outlet (2-4-2) for air volume control. 4. The energy-saving dual-circulation system for a computer room according to claim 1, characterized in that: the temperature-controlled air supply unit (2-7) includes a main blower (2-7-1), at least one temperature-controlled air supply outlet ( 2-7-2), and at least one air volume controller B (2-7-3) associated with the temperature-controlled air supply port (2-7-2) for air volume control. 5. The energy-saving dual-circulation system of the computer room according to claim 3, characterized in that: the control panel of the temperature-controlled exhaust unit (2-4) is respectively provided with an inspection air supply port A (2-4-4) . 6. The energy-saving dual-circulation system of the computer room according to claim 4, characterized in that: the control panel of the temperature-controlled air supply unit (2-7) is respectively provided with an inspection air supply port B (2-7-4) . the

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