CN110996611B - Control method of irregular heat rack - Google Patents
Control method of irregular heat rack Download PDFInfo
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- CN110996611B CN110996611B CN201911127172.4A CN201911127172A CN110996611B CN 110996611 B CN110996611 B CN 110996611B CN 201911127172 A CN201911127172 A CN 201911127172A CN 110996611 B CN110996611 B CN 110996611B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20836—Thermal management, e.g. server temperature control
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20381—Thermal management, e.g. evaporation control
Abstract
The invention discloses a control method of an irregular heat rack, wherein the irregular heat rack comprises a controller, a conveying unit, a cold quantity supply unit and a heat exchanger; the control method of the irregular heat rack mainly comprises the following steps: the actual outlet air temperature of the heating equipment is detected, and compared with an outlet air temperature set value and outlet air temperature control precision which are preset by a controller; according to the comparison result, the controller sends an instruction to adjust the working states of the conveying unit and the cold quantity supply unit, so that the automatic adjustment of the air outlet temperature of the heating equipment is realized; the problem of local heat dissipation can be solved through the matching of the conveying unit and the cold quantity supply unit, and the aims of energy conservation and environmental protection are achieved; in addition, the working state of the cold quantity supply unit can be adjusted, the phenomenon of surface condensation of the heat exchanger is avoided, and the heat exchanger is ensured to be in a normal working state.
Description
Technical Field
The invention relates to the technical field of rack heat dissipation, in particular to a control method of an irregular heat rack.
Background
With the development of mobile communication technology and the arrival of the 5G era, the demand of the modern society on data transmission is higher and higher, and the construction of a transmission machine room is more and more intensive to realize the aims of wide coverage and low delay; in order to reduce the energy consumption increase caused by the density of the transmission machine room, attention is paid to the energy consumption of the transmission machine room heat dissipation system.
The existing machine room is generally arranged by increasing the traditional air conditioner to reduce the heat productivity of the transmission equipment, but effective heat dissipation airflow cannot be established only by adopting the traditional air conditioner for heat dissipation, so that the problem of local high temperature exists, the problem that the heat dissipation of the existing machine room of the transmission equipment cannot be solved still is caused, and meanwhile, the energy consumption of a heat dissipation system is high.
In addition, when the temperature of the refrigerant of the heat exchanger is too low, the heat exchanger is easy to generate the phenomenon of surface condensation, and the working state of the heat exchanger is influenced.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a control method of an irregular heat rack, which automatically controls the working states of a conveying unit and a cold quantity supply unit through a controller, realizes the automatic adjustment of the air outlet temperature of heating equipment, can solve the problem of local heat dissipation, and realizes the aims of energy conservation and environmental protection.
In order to achieve the purpose, the invention adopts the following technical scheme:
a control method of an irregular heat rack comprises a controller, a conveying unit, a cold quantity supply unit and a heat exchanger; the control method comprises the following steps:
s100, inputting an air outlet temperature set value T1 and air outlet temperature control accuracy T2 of heating equipment in advance into a controller of the irregular heat rack;
s200, detecting the actual air outlet temperature T3 of the heating equipment by a first temperature sensor arranged at an air outlet of the heating equipment, and feeding back the detection result to the controller; the controller compares the actual outlet air temperature T3 of the heat-generating equipment with T1+ T2 and T1-T2, if T3 is greater than T1+ T2, the step S300 is executed, if T3 is less than T1-T2, the step S400 is executed, and if TI-T2 is less than or equal to T3 and less than or equal to T1+ T2, the step S500 is executed;
s300, the controller respectively sends corresponding instructions to control the working states of the conveying unit and the cold quantity supply unit until the actual air outlet temperature T3 of the heating equipment is equal to T1;
s400, the controller respectively sends corresponding instructions to control the working states of the conveying unit and the cold quantity supply unit until the actual air outlet temperature T3 of the heating equipment is equal to T1;
and S500, the controller controls the conveying unit and the cold energy supply unit to keep the working state unchanged.
In the method for controlling an irregular heat rack, the step S300 specifically includes the following steps:
s301, controlling a conveying unit to increase conveying air volume by a controller;
and S302, the controller controls the cold supply unit to improve the supply of cold energy of the cold source.
In the method for controlling an irregular heat rack, the step S400 specifically includes the following steps:
s401, the controller controls the cold supply unit to reduce the supply of cold energy of the cold source;
s402, the controller controls the conveying unit to reduce the conveying air volume.
In the control method of the irregular heat rack, the conveying unit is composed of a plurality of energy-saving fans, and the energy-saving fans are used for conveying heating equipment in an air inlet and outlet mode.
The control method of the irregular heat rack further comprises the following steps:
s600, detecting the temperature T4 and the humidity phi 1 of an external environment where the heating equipment is located by a second temperature sensor and a first humidity sensor which are arranged on the irregular heat rack, feeding back the detection result to the controller, and calculating an environment dew point temperature D1 by the controller according to the temperature T4 and the humidity phi 1 of the external environment;
s700, a third temperature sensor arranged in the heat exchanger detects the temperature T5 of the refrigerant in the heat exchanger, the controller compares the temperature T5 of the refrigerant with the ambient dew point temperature D1, and the controller sends an instruction to control the working state of the cooling capacity supply unit according to the comparison result.
In the method for controlling an irregular heat rack, the step S700 specifically includes the steps of:
s701, when T5 is smaller than D1, the controller controls the cold supply unit to reduce the supply of cold energy of the cold source, and the temperature of a refrigerant in the heat exchanger is increased;
s702, when T5 is more than or equal to D1, the cold energy supply unit keeps the working state unchanged.
In the method for controlling the irregular heat rack, the refrigerant is R134 a.
Has the advantages that:
the invention provides a control method of an irregular heat rack, which has the following advantages:
(1) the working states of the conveying unit and the cold energy supply unit are automatically controlled by the controller, so that the air outlet temperature of the heating equipment is automatically adjusted;
(2) through reasonable matching of the conveying unit and the cold energy supply unit, a heat dissipation mode of only adopting an air conditioner for cooling in the prior art is replaced, effective heat dissipation airflow can be established, the problem of local heat dissipation is solved, and the effects of energy conservation and environmental protection are achieved;
(3) by comparing the temperature of the refrigerant of the heat exchanger with the ambient dew point temperature, the phenomenon of condensation on the surface of the heat exchanger is avoided, and the normal working state of the heat exchanger is ensured.
Drawings
FIG. 1 is a control flow diagram of a method for controlling an irregular heat rack according to the present invention;
fig. 2 is a block diagram illustrating the control principle of the irregular heat rack according to the present invention.
Detailed Description
The invention provides a control method of an irregular heat rack, and in order to make the purpose, technical scheme and effect of the invention clearer and clearer, the invention is further described in detail below by referring to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounted," "connected," and the like are to be construed broadly, and those skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations.
In the description of the present invention, the irregular heat rack refers to a device in a network data transmission and convergence machine room, the device includes a network switch, a router and other transmission devices, and the air inlets and the air outlets of the network switch, the router and other transmission devices are irregularly arranged to form an irregularity of the emitted heat.
Referring to fig. 1 and 2, the present invention provides a method for controlling an irregular heat rack, which includes a controller, a transport unit, a cooling capacity supply unit, and a heat exchanger; the control method of the irregular heat rack mainly comprises the following steps:
s100, inputting an air outlet temperature set value T1 and air outlet temperature control accuracy T2 of heating equipment in advance into a controller of the irregular heat rack;
s200, detecting the actual air outlet temperature T3 of the heating equipment by a first temperature sensor arranged at an air outlet of the heating equipment, and feeding back the detection result to the controller; the controller compares the actual outlet air temperature T3 of the heat-generating equipment with T1+ T2 and T1-T2, if T3 is greater than T1+ T2, the step S300 is executed, if T3 is less than T1-T2, the step S400 is executed, and if TI-T2 is less than or equal to T3 and less than or equal to T1+ T2, the step S500 is executed;
s300, the controller respectively sends corresponding instructions to control the working states of the conveying unit and the cold quantity supply unit until the actual air outlet temperature T3 of the heating equipment is equal to T1;
s400, the controller respectively sends corresponding instructions to control the working states of the conveying unit and the cold quantity supply unit until the actual air outlet temperature T3 of the heating equipment is equal to T1;
and S500, the controller controls the conveying unit and the cold energy supply unit to keep the working state unchanged.
The controller automatically controls the working states of the conveying unit and the cold quantity supply unit, so that the air outlet temperature of the heating equipment is automatically adjusted, and the automation degree is improved; the conveying unit is used for taking away hot air emitted by the heating equipment, an effective heat dissipation channel is established, the air circulation effect in the rack is improved, and uniform heat dissipation and cooling of each area in the rack are realized; the cold energy supply unit is used for adjusting the supply of cold energy of a cold source of the heat exchanger, so that the temperature of a refrigerant in the heat exchanger is adjusted, and the heat exchange effect of the heat exchanger is adjusted; through the reasonable collocation of the conveying unit and the cold quantity supply unit, effective heat dissipation airflow can be established, the problem of local heat dissipation is solved, and the effects of energy conservation and environmental protection are achieved.
Further, referring to fig. 1, the step S300 specifically includes the following steps:
s301, the controller controls the conveying unit to increase conveying air volume; when the heat exchanger is contacted with heat at higher temperature, a better cooling effect cannot be achieved, the conveying air quantity is increased through the conveying unit, the heat emitted by the heating equipment is taken away, the air flowing effect in the rack is improved, and the pre-cooling of the heating equipment is realized;
s302, the controller controls the cold supply unit to improve the supply of cold of the cold source, reduce the temperature of a refrigerant in the heat exchanger, improve the cooling effect of the heat exchanger, and can effectively reduce the air outlet temperature of the heating equipment by matching with the conveying unit with increased conveying air quantity.
Further, referring to fig. 1, the step S400 specifically includes the following steps:
s401, the controller controls the cold supply unit to reduce the supply of cold of the cold source; because the heat exchanger plays a main cooling role, when the actual outlet air temperature is lower than T1-T2, the supply of cold energy of a cold source is firstly reduced, so that the temperature of a refrigerant of the heat exchanger is improved, the cooling effect of the heat exchanger is weakened, the heat emitted by heating equipment cannot be effectively reduced, and the actual outlet air temperature of the heating equipment is improved;
s402, the controller controls the conveying unit to reduce the conveying air volume; after the air quantity conveyed is reduced, the air flow effect of the rack is weakened, the heat of the heating equipment cannot be taken away in time, and the heat accumulation of the heating equipment is facilitated, so that the air outlet temperature is improved.
Furthermore, the conveying unit consists of a plurality of energy-saving fans, and the energy-saving fans are used for air inlet and outlet conveying of the heating equipment; when the conveying unit needs to increase the conveying air quantity, the rotating speed of the energy-saving fan is increased, so that the air circulation effect in the rack is improved; when the conveying unit needs to reduce the conveying air quantity, the rotating speed of the energy-saving fan is reduced, so that the circulation effect of air in the rack is weakened.
Further, referring to fig. 1, the method for controlling the irregular heat rack further includes the following steps:
s600, detecting the temperature T4 and the humidity phi 1 of an external environment where the heating equipment is located by a second temperature sensor and a first humidity sensor which are arranged on the irregular heat rack, feeding back the detection result to the controller, and calculating an environment dew point temperature D1 by the controller according to the temperature T4 and the humidity phi 1 of the external environment;
s700, a third temperature sensor arranged in the heat exchanger detects the temperature T5 of the refrigerant in the heat exchanger, the controller compares the temperature T5 of the refrigerant with the ambient dew point temperature D1, and the controller sends an instruction to control the working state of the cooling capacity supply unit according to the comparison result.
Further, referring to fig. 1, the step S700 specifically includes the following steps:
s701, when T5 is smaller than D1, the controller controls the cold supply unit to reduce the supply of cold energy of the cold source, and the temperature of a refrigerant in the heat exchanger is increased;
s702, when T5 is more than or equal to D1, the cold energy supply unit keeps the working state unchanged.
Through comparing the refrigerant temperature T5 and the environment dew point temperature D1, the supply of cold energy of the cold source is controlled, the phenomenon that surface condensation occurs in the heat exchanger is avoided, the working state of the heat exchanger is prevented from being influenced, and the heat dissipation effect of the irregular heat rack is further influenced.
Preferably, the refrigerant is R134a, and R134a is an environment-friendly refrigerant, so that the burden on the environment is reduced, the environmental pollution is reduced, and the environment-friendly production concept is compounded.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the protective scope of the present invention.
Claims (5)
1. A method of controlling an irregular heat rack comprising a controller, a transport unit, a refrigeration delivery unit and a heat exchanger, the method comprising the steps of:
s100, inputting an air outlet temperature set value T1 and air outlet temperature control accuracy T2 of heating equipment in advance into a controller of the irregular heat rack;
s200, detecting the actual air outlet temperature T3 of the heating equipment by a first temperature sensor arranged at an air outlet of the heating equipment, and feeding back the detection result to the controller; the controller compares the actual outlet air temperature T3 of the heat-generating equipment with T1+ T2 and T1-T2, if T3 is greater than T1+ T2, the step S300 is executed, if T3 is less than T1-T2, the step S400 is executed, and if TI-T2 is less than or equal to T3 and less than or equal to T1+ T2, the step S500 is executed;
s300, the controller respectively sends corresponding instruction control transport unit and cold volume supply unit' S operating condition until the actual air-out temperature T3 of the equipment that generates heat is T1, specifically is:
s301, controlling a conveying unit to increase conveying air volume by a controller;
s302, the controller controls the cold supply unit to improve the supply of cold of the cold source;
s400, the controller sends corresponding instruction control transport unit and cold volume supply unit' S operating condition respectively until the actual air-out temperature T3 of the equipment that generates heat T1, specifically is:
s401, the controller controls the cold supply unit to reduce the supply of cold energy of the cold source;
s402, controlling a conveying unit to reduce conveying air volume by a controller;
and S500, the controller controls the conveying unit and the cold energy supply unit to keep the working state unchanged.
2. The method for controlling the irregular heat rack according to claim 1, wherein the conveying unit is composed of a plurality of energy-saving fans, and the energy-saving fans are used for air inlet and outlet conveying of the heating equipment.
3. A method of controlling an irregular heat rack as claimed in claim 1, further comprising the steps of:
s600, detecting the temperature T4 and the humidity phi 1 of an external environment where the heating equipment is located by a second temperature sensor and a first humidity sensor which are arranged on the irregular heat rack, feeding back the detection result to the controller, and calculating an environment dew point temperature D1 by the controller according to the temperature T4 and the humidity phi 1 of the external environment;
s700, a third temperature sensor arranged in the heat exchanger detects the temperature T5 of the refrigerant in the heat exchanger, the controller compares the temperature T5 of the refrigerant with the ambient dew point temperature D1, and the controller sends an instruction to control the working state of the cooling capacity supply unit according to the comparison result.
4. The method as claimed in claim 3, wherein the step S700 includes the steps of:
s701, when T5 is smaller than D1, the controller controls the cold supply unit to reduce the supply of cold energy of the cold source, and the temperature of a refrigerant in the heat exchanger is increased;
s702, when T5 is more than or equal to D1, the cold energy supply unit keeps the working state unchanged.
5. The method as claimed in claim 4, wherein the coolant is R134 a.
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|---|---|---|---|
| CN201911127172.4A CN110996611B (en) | 2019-11-18 | 2019-11-18 | Control method of irregular heat rack |
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| CN201911127172.4A CN110996611B (en) | 2019-11-18 | 2019-11-18 | Control method of irregular heat rack |
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| CN110996611B true CN110996611B (en) | 2021-11-16 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206919154U (en) * | 2017-04-28 | 2018-01-23 | 青岛海尔空调器有限总公司 | Air-conditioning device |
| CN108541186A (en) * | 2018-03-22 | 2018-09-14 | 东莞理工学院 | intelligent cooling system |
| CN109827302A (en) * | 2019-01-28 | 2019-05-31 | 广州大学 | The control method of Public Areas Associated with Metro Station water cooling straight-expansion type air conditioner unit |
| CN110337223A (en) * | 2019-07-11 | 2019-10-15 | 国网新疆电力有限公司信息通信公司 | A kind of control method and system for wind volume of communication room |
| CN110430722A (en) * | 2019-07-20 | 2019-11-08 | 中国船舶重工集团公司第七二四研究所 | A kind of device and its self-adaptation control method having humiture control ability |
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2019
- 2019-11-18 CN CN201911127172.4A patent/CN110996611B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206919154U (en) * | 2017-04-28 | 2018-01-23 | 青岛海尔空调器有限总公司 | Air-conditioning device |
| CN108541186A (en) * | 2018-03-22 | 2018-09-14 | 东莞理工学院 | intelligent cooling system |
| CN109827302A (en) * | 2019-01-28 | 2019-05-31 | 广州大学 | The control method of Public Areas Associated with Metro Station water cooling straight-expansion type air conditioner unit |
| CN110337223A (en) * | 2019-07-11 | 2019-10-15 | 国网新疆电力有限公司信息通信公司 | A kind of control method and system for wind volume of communication room |
| CN110430722A (en) * | 2019-07-20 | 2019-11-08 | 中国船舶重工集团公司第七二四研究所 | A kind of device and its self-adaptation control method having humiture control ability |
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