CN105807806A - Temperature monitoring method for electric power cabinet and electric power cabinet - Google Patents
Temperature monitoring method for electric power cabinet and electric power cabinet Download PDFInfo
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- CN105807806A CN105807806A CN201610255930.0A CN201610255930A CN105807806A CN 105807806 A CN105807806 A CN 105807806A CN 201610255930 A CN201610255930 A CN 201610255930A CN 105807806 A CN105807806 A CN 105807806A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
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- Automation & Control Theory (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a temperature monitoring method for an electric power cabinet.The temperature monitoring method includes the following steps that S1, the temperature in the electric power cabinet is close to a critical warning threshold value, and the method proceeds the step S2; S2, a first cooling device in the electric power cabinet is controlled to be started; S3, the temperature of the electric power cabinet is monitored, when the temperature of the electric power cabinet is below the range of the safe temperature value, the method proceeds the step S4, and when the temperature of the electric power cabinet is not below the range of the safe temperature value, the method proceeds the step S6; S4, operating of all the cooling devices is suspended, and the temperature rising rate and the temperature of the electric power cabinet are monitored; S5, when the temperature rising rate of the electric power cabinet is higher than a preset temperature-rising-rate threshold value, or when the temperature in the electric power cabinet is close to the critical warning threshold value, and the method proceeds the step S2; S6, operating of a second cooling device is started.The invention further discloses the electric power cabinet.By means of the temperature monitoring method for the electric power cabinet, the temperature in the electric power cabinet can be effectively monitored; the cooling effect is good, and meanwhile energy consumption can be reduced.
Description
Technical field
The present invention relates to a kind of power equipment, the temperature monitoring method of especially a kind of electric power cabinet and electric power cabinet.
Background technology
Electric power cabinet is a kind of conventional power infrastructures, equipped with substantial amounts of power components inside it；When working due to electric power cabinet, inside will produce amount of heat, the too high easy normal operation affecting electrical equipment of internal temperature.People can find, and discloses a lot of electric power cabinet on the website of State Intellectual Property Office, such electric power cabinet as patent 201310370187.X, 201310315992.2,201510766091.4 etc. Suo Gongkai.Such patent does not disclose effective temperature monitoring method.
Summary of the invention
The temperature monitoring method of the electric power cabinet of a kind of good heat dissipation effect that the invention aims to solve the deficiency of above-mentioned technology and design.
The temperature monitoring method of a kind of electric power cabinet designed by the present invention, it comprises the steps:
S1, the temperature judged in the electric power cabinet whether critical threshold value of warning of convergence；When the critical threshold value of warning of convergence, jump to step S2, otherwise continue waiting for and judge；
S2, the first heat sink controlled in electric power cabinet start, and electric power cabinet is lowered the temperature；
S3, wait the first Preset Time after the temperature of monitoring power electric cabinet whether reach below safe temperature value scope, when the temperature of electric power cabinet reaches below safe temperature value scope, jump to step S4；In the temperature of electric power cabinet not up to time below safe temperature value scope, jump to step S6；
S4, suspend the operation of all of heat sink, and the programming rate of monitoring power electric cabinet judges the whether critical threshold value of warning of convergence of the temperature in electric power cabinet simultaneously；
During the critical threshold value of warning of S5, temperatures approach when the programming rate of electric power cabinet exceedes preset heating rate threshold value or in electric power cabinet, jump to step S2；During programming rate at electric power cabinet threshold value of warning critical not less than the non-convergence of temperature in preset heating rate threshold value simultaneously electric power cabinet, jump to step S4；
S6, keep the first heat sink continuous service simultaneously, increase the operation starting the second heat sink, and jump to step S3.
Further scheme is that described step S3 includes:
After waiting the first Preset Time, whether the temperature of monitoring power electric cabinet reaches below safe temperature value scope, when the temperature of electric power cabinet reaches below safe temperature value scope, jumps to step S4；
In the temperature of electric power cabinet not up to time below safe temperature value scope, continue to judge whether the cooling rate of electric power cabinet exceedes default cooling rate threshold value, when the cooling rate at electric power cabinet exceedes default cooling rate threshold value, jump to step S4；When not heating up in the cooling rate of electric power cabinet is not less than default cooling rate threshold value and electric power cabinet, jump to step S2；When heating up in electric power cabinet, jump to step S6.Such scheme, in the temperature of electric power cabinet not up to time below safe temperature value scope, having incorporated cooling rate is foundation for referencial use, cooling rate is big, although being that temperature is not up to, below safe temperature value scope, still not starting heat sink, such mode, can more reasonably utilize heat sink, further up to energy-conservation and cooling effect；
Further scheme is that described step S5 includes:
Described preset heating rate threshold value includes the first preset heating rate threshold value and the second preset heating rate threshold value；First preset heating rate threshold value is less than the second preset heating rate threshold value；
During the critical threshold value of warning of temperatures approach in electric power cabinet, or electric power cabinet programming rate more than the first preset heating rate threshold value and and during not less than the second preset heating rate threshold value, jump to step S2；
When the programming rate of electric power cabinet is more than the second preset heating rate threshold value, increases the operation starting the second heat sink, and jump to step S2；
When the programming rate of electric power cabinet is not less than the first preset heating rate threshold value simultaneously the critical threshold value of warning of the non-convergence of temperature in electric power cabinet time, jump to step S4.
Further scheme is that described first heat sink is in the fan can outwards bled in cabinet top；Described second heat sink includes orifice plate, cold air cavity, refrigerator pipe, communicating pipe and cold air valve；Described orifice plate is located at bottom of cabinet bulk, and orifice plate is provided with the first through hole that can inwardly ventilate and the second through hole communicated with communicating pipe, the first through hole and the second through hole are all multiple；Described communicating pipe also communicates with cold air cavity；Described cold air cavity connects air-conditioning cabinet by described refrigerator pipe, is provided with air-conditioning in air-conditioning cabinet；Described cold air valve is located on refrigerator pipe.
The present invention have also been devised a kind of electric power cabinet adopting said temperature monitoring method, including cabinet, bottom of cabinet bulk is provided with leg, and described cabinet is provided with the first heat sink and the second heat sink, it is characterized in that described first heat sink is in the fan can outwards bled in cabinet top；Described second heat sink includes orifice plate, cold air cavity, refrigerator pipe, communicating pipe and cold air valve；Described orifice plate is located at bottom of cabinet bulk, and orifice plate is provided with the first through hole that can inwardly ventilate and the second through hole communicated with communicating pipe, the first through hole and the second through hole are all multiple；Described communicating pipe also communicates with cold air cavity；Described cold air cavity connects air-conditioning cabinet by described refrigerator pipe, is provided with air-conditioning in air-conditioning cabinet；Described cold air valve is located on refrigerator pipe
The invention has the beneficial effects as follows: the temperature in electric power cabinet can be effectively monitored；When the critical threshold value of warning of the temperatures approach in electric power cabinet, the first heat sink cooling can be started, and follow-up judgement can be done, when the first heat sink cooling-down effect is undesirable, the first heat sink can be started and lower the temperature together, improve cooling-down effect, step-wise execution cooling, reduces energy consumption；After temperature lowers, using programming rate as monitoring parameter, it is prevented that too fast intensification, temperature is made to be in reasonable interval all the time；The temperature fall time of heat sink can be efficiently controlled.
Accompanying drawing explanation
Fig. 1 be embodiment 1 electric power cabinet structural representation；
Fig. 2 be embodiment 4 electric power cabinet structural representation；
Fig. 3 is the enlarged drawing at A place in Fig. 2；
Fig. 4 is the schematic diagram that 4 two electric power cabinets of embodiment share an air-conditioning cabinet；
Fig. 5 be embodiment 5 electric power cabinet structural representation；
In figure: cabinet 1, leg the 2, first heat sink the 3, second heat sink 4, orifice plate 41, cold air cavity 42, refrigerator pipe 43, communicating pipe 44, cold air valve the 45, first through hole the 46, second through hole 47, air-conditioning cabinet 48, air-conditioning 49, supporting plate 410, lifting drive 411, extendable temple members 412.
Detailed description of the invention
In conjunction with accompanying drawing, the invention will be further described by the examples below.
Embodiment 1:
The temperature monitoring method of a kind of electric power cabinet described by the present embodiment, it comprises the steps:
S1, the temperature judged in the electric power cabinet whether critical threshold value of warning of convergence；When the critical threshold value of warning of convergence, jump to step S2, otherwise continue waiting for and judge；" convergence " mentioned here, those skilled in the art can oneself be arranged according to general knowledge, and such as critical threshold value of warning is 80 DEG C, can be considered convergence when temperature reaches 79 DEG C, and this technology is prior art, does not specifically describe in detail；
S2, the first heat sink 3 controlled in electric power cabinet start, and electric power cabinet is lowered the temperature；
S3, wait the first Preset Time after the temperature of monitoring power electric cabinet whether reach below safe temperature value scope, when the temperature of electric power cabinet reaches below safe temperature value scope, jump to step S4；In the temperature of electric power cabinet not up to time below safe temperature value scope, jump to step S6；
S4, suspend the operation of all of heat sink, and the programming rate of monitoring power electric cabinet judges the whether critical threshold value of warning of convergence of the temperature in electric power cabinet simultaneously；
During the critical threshold value of warning of S5, temperatures approach when the programming rate of electric power cabinet exceedes preset heating rate threshold value or in electric power cabinet, jump to step S2；During programming rate at electric power cabinet threshold value of warning critical not less than the non-convergence of temperature in preset heating rate threshold value simultaneously electric power cabinet, jump to step S4；Preset heating rate those skilled in the art can do conventional selection, can elect as every 5 minutes such as programming rate threshold value and heat up 1 DEG C；This preset heating rate threshold value is more little, and heat sink starts more frequent, but good cooling effect；Preset heating rate threshold value is more big, and heat sink starts more infrequently, but more energy-conservation；
S6, keep the first heat sink 3 continuous service simultaneously, increase the operation starting the second heat sink 4, and jump to step S3.
As it is shown in figure 1, the first heat sink 3 and the second heat sink 4 can be disposed on two fans at electric power cabinet cabinet top, the first heat sink 3 adopts lower-powered fan, and the second heat sink 4 adopts the fan that power is bigger.Air inlet is set bottom electric power cabinet.
Embodiment 2:
The temperature monitoring method of the electric power cabinet described by the present embodiment, step S3 is increasingly complex as different from Example 1, and namely described step S3 includes:
After waiting the first Preset Time, whether the temperature of monitoring power electric cabinet reaches below safe temperature value scope, when the temperature of electric power cabinet reaches below safe temperature value scope, jumps to step S4；
In the temperature of electric power cabinet not up to time below safe temperature value scope, continue to judge whether the cooling rate of electric power cabinet exceedes default cooling rate threshold value, when the cooling rate at electric power cabinet exceedes default cooling rate threshold value, jump to step S4；When not heating up in the cooling rate of electric power cabinet is not less than default cooling rate threshold value and electric power cabinet, jump to step S2；When heating up in electric power cabinet, jump to step S6.Such scheme, in the temperature of electric power cabinet not up to time below safe temperature value scope, having incorporated cooling rate is foundation for referencial use, cooling rate is big, although being that temperature is not up to, below safe temperature value scope, still not starting heat sink, such mode, can more reasonably utilize heat sink, further up to energy-conservation and cooling effect.
Embodiment 3:
The temperature monitoring method of the electric power cabinet described by the present embodiment, step S5 is more reasonable as different from Example 1, and namely described step S5 includes:
Described preset heating rate threshold value includes the first preset heating rate threshold value and the second preset heating rate threshold value；First preset heating rate threshold value is less than the second preset heating rate threshold value；
During the critical threshold value of warning of temperatures approach in electric power cabinet, or electric power cabinet programming rate more than the first preset heating rate threshold value and and during not less than the second preset heating rate threshold value, jump to step S2；This step is " heated up or temperature is high, this process "；
When the programming rate of electric power cabinet is more than the second preset heating rate threshold value, increases the operation starting the second heat sink 4, and jump to step S2；This step is " heating up too fast, acceleration processes "；
When the programming rate of electric power cabinet is not less than the first preset heating rate threshold value simultaneously the critical threshold value of warning of the non-convergence of temperature in electric power cabinet time, jump to step S4；This step is " heating up slow, wouldn't process ".
Step S5 described by the present embodiment is equally applicable to embodiment 2.
Embodiment 4:
As shown in Figure 2,3, the present embodiment describes a kind of electric power cabinet, including cabinet 1, is provided with leg 2 bottom cabinet 1, described cabinet 1 is provided with the first heat sink 3 and the second heat sink 4, it is characterized in that described first heat sink 3 is in the fan can outwards bled in cabinet 1 top；Described second heat sink 4 includes orifice plate 41, cold air cavity 42, refrigerator pipe 43, communicating pipe 44 and cold air valve 45；Described orifice plate 41 is located at bottom cabinet 1, and orifice plate 41 is provided with the first through hole 46 that can inwardly ventilate and the second through hole 47 communicated with communicating pipe 44, and the first through hole 46 and the second through hole 47 are all multiple；Described communicating pipe 44 also communicates with cold air cavity 42；Described cold air cavity 42 connects air-conditioning cabinet 48 by described refrigerator pipe 43, is provided with air-conditioning 49 in air-conditioning cabinet 48；Described cold air valve 45 is located on refrigerator pipe 43.
The present embodiment describes the temperature monitoring method of a kind of electric power cabinet, with several embodiments above the difference is that: the first heat sink 3 and the second heat sink 4 adopt the structure described in the present embodiment；
The effect of the first heat sink 3 is outside convulsion, heat loss through convection；
The startup of the second heat sink 4 is to open cold air valve 45, such air-conditioning cabinet 48 communicates with orifice plate 41, under the effect of the first heat sink 3, the Quilt with air conditioning of air-conditioning cabinet 48 is pumped into cabinet 1, the first through hole 46 on orifice plate 41 still can from bottom air inlet simultaneously, can obtaining the wind regime of comparatively low temperature after the mixing of this two-part gas, such cooling effect is just better, plays the effect accelerating cooling.Cold air cavity 42 then can play cushioning effect.
The shape of its second through hole 47 is preferably made Y shape, in order to the mixing of cold wind and bottom air inlet；
In the present embodiment, air-conditioning cabinet 48 can a corresponding electric power cabinet, it is preferred that a corresponding multiple stage electric power cabinet of air-conditioning cabinet 48, as shown in Figure 4；Described electric power cabinet is multiple stage, and described air-conditioning cabinet 48 is one and is positioned at the center of multiple stage electric power cabinet distributed areas, and the refrigerator pipe 43 bottom each electric power cabinet all communicates with this air-conditioning cabinet 48；So may insure that the cooling-down effect of electric power cabinet group in whole power distribution station, but in not increasing cost.
It is apparent that the electric power cabinet described in the present embodiment, it would however also be possible to employ other temperature monitoring method, namely when the critical threshold value of warning of temperatures approach in electric power cabinet, until dropping to below safe temperature simultaneously when the first heat sink 3 and the second heat sink 4 start.First heat sink 3 and the second heat sink 4 start simultaneously, and what enter from bottom is mixed cold wind, and cooling-down effect is better.
Embodiment 5:
As shown in Figure 5, the present embodiment describes a kind of electric power cabinet, with embodiment 4 electric power cabinet structure the difference is that: described cold air cavity 42 is liftable, it is provided with supporting plate 410 in cold air cavity 42 both sides, it can be push-rod electric machine or cylinder that described supporting plate 410 is connected with lifting drive 411(), it is that extendable temple members 412(is as adopted fold plastic tube that described refrigerator pipe 43 is positioned at the part below cold air cavity 42), described second through hole 47 and communicating pipe 44 are separable.
When the second heat sink 4 does not start, second through hole 47 and communicating pipe 44 separate, increase the intake of orifice plate 41, when the second heat sink 4 starts, cold air cavity 42 is held up and makes the second through hole 47 contact with communicating pipe 44 by lifting drive 411, after cold air valve 45 is opened simultaneously, it is possible to enter cold wind inside electric power cabinet.
Above-described embodiment is only the design explanation for example to the present invention, it will be apparent that, the protection domain of this patent is not limited to above-described embodiment.
The various equivalent modifications or supplementary that above-described embodiment is made by those skilled in the art, all should fall into the protection domain of this patent.
Claims (5)
1. the temperature monitoring method of an electric power cabinet, it is characterised in that it comprises the steps:
S1, the temperature judged in the electric power cabinet whether critical threshold value of warning of convergence；When the critical threshold value of warning of convergence, jump to step S2, otherwise continue waiting for and judge；
S2, the first heat sink (3) controlled in electric power cabinet start, and electric power cabinet is lowered the temperature；
S3, wait the first Preset Time after the temperature of monitoring power electric cabinet whether reach below safe temperature value scope, when the temperature of electric power cabinet reaches below safe temperature value scope, jump to step S4；In the temperature of electric power cabinet not up to time below safe temperature value scope, jump to step S6；
S4, suspend the operation of all of heat sink, and the programming rate of monitoring power electric cabinet judges the whether critical threshold value of warning of convergence of the temperature in electric power cabinet simultaneously；
During the critical threshold value of warning of S5, temperatures approach when the programming rate of electric power cabinet exceedes preset heating rate threshold value or in electric power cabinet, jump to step S2；During programming rate at electric power cabinet threshold value of warning critical not less than the non-convergence of temperature in preset heating rate threshold value simultaneously electric power cabinet, jump to step S4；
S6, keep the first heat sink (3) continuous service simultaneously, increase the operation starting the second heat sink (4), and jump to step S3.
2. the temperature monitoring method of a kind of electric power cabinet as claimed in claim 1, it is characterised in that described step S3 includes:
After waiting the first Preset Time, whether the temperature of monitoring power electric cabinet reaches below safe temperature value scope, when the temperature of electric power cabinet reaches below safe temperature value scope, jumps to step S4；
In the temperature of electric power cabinet not up to time below safe temperature value scope, continue to judge whether the cooling rate of electric power cabinet exceedes default cooling rate threshold value, when the cooling rate at electric power cabinet exceedes default cooling rate threshold value, jump to step S4；When not heating up in the cooling rate of electric power cabinet is not less than default cooling rate threshold value and electric power cabinet, jump to step S2；When heating up in electric power cabinet, jump to step S6.
3. the temperature monitoring method of a kind of electric power cabinet as claimed in claim 1 or 2, it is characterised in that described step S5 includes:
Described preset heating rate threshold value includes the first preset heating rate threshold value and the second preset heating rate threshold value；First preset heating rate threshold value is less than the second preset heating rate threshold value；
During the critical threshold value of warning of temperatures approach in electric power cabinet, or electric power cabinet programming rate more than the first preset heating rate threshold value and and during not less than the second preset heating rate threshold value, jump to step S2；
When the programming rate of electric power cabinet is more than the second preset heating rate threshold value, increases the operation starting the second heat sink (4), and jump to step S2；
When the programming rate of electric power cabinet is not less than the first preset heating rate threshold value simultaneously the critical threshold value of warning of the non-convergence of temperature in electric power cabinet time, jump to step S4.
4. the temperature monitoring method of a kind of electric power cabinet as claimed in claim 1, it is characterised in that described first heat sink (3) is in the fan can outwards bled in cabinet (1) top；Described second heat sink (4) includes orifice plate (41), cold air cavity (42), refrigerator pipe (43), communicating pipe (44) and cold air valve (45)；Described orifice plate (41) is located at cabinet (1) bottom, and orifice plate (41) is provided with the first through hole (46) that can inwardly ventilate and the second through hole (47) communicated with communicating pipe (44), and the first through hole (46) and the second through hole (47) are all multiple；Described communicating pipe (44) also communicates with cold air cavity (42)；Described cold air cavity (42) connects air-conditioning cabinet (48) by described refrigerator pipe (43), is provided with air-conditioning in air-conditioning cabinet (48)；Described cold air valve (45) is located on refrigerator pipe (43).
5. the electric power cabinet adopting temperature monitoring method described in claim 1, including cabinet (1), cabinet (1) bottom is provided with leg (2), described cabinet (1) is provided with the first heat sink (3) and the second heat sink (4), it is characterized in that described first heat sink (3) is in the fan can outwards bled in cabinet (1) top；Described second heat sink (4) includes orifice plate (41), cold air cavity (42), refrigerator pipe (43), communicating pipe (44) and cold air valve (45)；Described orifice plate (41) is located at cabinet (1) bottom, and orifice plate (41) is provided with the first through hole (46) that can inwardly ventilate and the second through hole (47) communicated with communicating pipe (44), and the first through hole (46) and the second through hole (47) are all multiple；Described communicating pipe (44) also communicates with cold air cavity (42)；Described cold air cavity (42) connects air-conditioning cabinet (48) by described refrigerator pipe (43), is provided with air-conditioning (49) in air-conditioning cabinet (48)；Described cold air valve (45) is located on refrigerator pipe (43).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610255930.0A CN105807806B (en) | 2016-04-21 | 2016-04-21 | The temperature monitoring method and electric power cabinet of a kind of electric power cabinet |
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| CN201610255930.0A CN105807806B (en) | 2016-04-21 | 2016-04-21 | The temperature monitoring method and electric power cabinet of a kind of electric power cabinet |
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Cited By (5)
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| CN109101050A (en) * | 2018-08-17 | 2018-12-28 | 绍兴上虞杭协热电有限公司 | A kind of heat supply network instrument cabinet with heating and heat-insulating device |
| CN110989739A (en) * | 2019-11-22 | 2020-04-10 | 浙江中控西子科技有限公司 | Energy-saving frequency conversion industrial electric appliance control cabinet |
| CN113137735A (en) * | 2021-03-10 | 2021-07-20 | 海信（山东）空调有限公司 | Air conditioner and control method for outdoor fan of air conditioner |
| CN114738920A (en) * | 2022-03-14 | 2022-07-12 | 青岛海尔空调器有限总公司 | Air conditioner control method and device, air conditioner and electronic equipment |
| CN115639862A (en) * | 2022-11-02 | 2023-01-24 | 江苏拓米洛环境试验设备有限公司 | Test box temperature control method, device and system |
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| CN115639862A (en) * | 2022-11-02 | 2023-01-24 | 江苏拓米洛环境试验设备有限公司 | Test box temperature control method, device and system |
| CN115639862B (en) * | 2022-11-02 | 2023-09-29 | 江苏拓米洛高端装备股份有限公司 | Method, device and system for controlling temperature of test box |
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