CN114640043A - Large power supply unit heat regulation and control device and regulation and control method - Google Patents
Large power supply unit heat regulation and control device and regulation and control method Download PDFInfo
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- CN114640043A CN114640043A CN202210435014.0A CN202210435014A CN114640043A CN 114640043 A CN114640043 A CN 114640043A CN 202210435014 A CN202210435014 A CN 202210435014A CN 114640043 A CN114640043 A CN 114640043A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
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Abstract
本发明提供了一种大型供电单元热量调控装置及调控方法，包括制冷箱、气液压缩机以及若干个液气转换机，制冷箱用于设置于电气箱的底部；气液压缩机设置于制冷箱内，气液压缩机的出口端连接有第一管路；若干个液气转换机并联连接于第一管路的出口端，液气转换机的出口端连接有第二管路，第二管路的出口端与气液压缩机相连。本发明提供的大型供电单元热量调控装置，利用气液压缩机将空气从气体状态压缩为液体状态，并将液体气体经第一管路送至液气转换机内转化为气态气体，在液态气体向气态气体转化的过程吸收电气箱内的热能，有效地降低了电气箱内的温度，保证了电气箱内设备的正常运行。
The invention provides a large-scale power supply unit heat control device and control method, including a refrigeration box, a gas-liquid compressor and several liquid-gas converters. The refrigeration box is arranged at the bottom of the electrical box; the gas-liquid compressor is arranged at the refrigeration In the box, the outlet end of the gas-liquid compressor is connected with a first pipeline; several liquid-gas converters are connected in parallel to the outlet end of the first pipeline, and the outlet end of the liquid-gas converter is connected with a second pipeline, and the second pipeline is connected to the outlet end of the liquid-gas converter. The outlet end of the pipeline is connected with the gas-liquid compressor. The large-scale power supply unit heat control device provided by the present invention utilizes a gas-liquid compressor to compress air from a gaseous state to a liquid state, and sends the liquid gas to the liquid-gas converter through the first pipeline to convert it into a gaseous gas. The process of converting to gaseous gas absorbs the heat energy in the electrical box, effectively reduces the temperature in the electrical box, and ensures the normal operation of the equipment in the electrical box.
Description
Technical Field
The invention belongs to the technical field of large power supply heat regulation and control, and particularly relates to a large power supply unit heat regulation and control device and a large power supply unit heat regulation and control method.
Background
With the development of science and technology, the supply capacity of a power supply system is greatly improved. In the construction of a large-scale power grid, in order to save space and facilitate management and maintenance, a plurality of chips and electronic components are integrated on the same circuit board in an electric box, and because the power supply equipment has very high power consumption and needs to work for a long time without stopping, a large amount of heat energy can be emitted in the use process of the electric box, and a large amount of static electricity can be generated.
In actual use, equipment generally dispels the heat through opening the cabinet door in order to cool down, but above-mentioned method makes the inside static of equipment adsorb the dust particle in the air easily, further reduces the heat dispersion of equipment, leads to electronic components's the burnout when serious, causes the paralysis of electric wire netting.
Disclosure of Invention
The invention aims to provide a large power supply unit heat regulating device and a regulating method, which can conveniently cool an electrical box, enable an electrical element to be in a proper environment temperature and ensure the normal operation of the electrical element.
In order to achieve the purpose, the invention adopts the technical scheme that: provided is a large power supply unit heat regulating device, including:
the refrigeration box is arranged at the bottom of the electric box;
the gas-liquid compressor is arranged in the refrigeration box and used for compressing and converting gaseous gas into liquid gas, and the outlet end of the gas-liquid compressor is connected with a first pipeline extending into the electric box;
the liquid-gas converters are connected to the outlet end of the first pipeline in parallel and used for converting liquid gas into gaseous gas so as to absorb heat energy in the electric box, the outlet ends of the liquid-gas converters are connected with a second pipeline, and the outlet end of the second pipeline is connected with a gas-liquid compressor;
wherein, the first pipeline is provided with a pressure regulating valve to control the conversion amount from liquid gas to gaseous gas.
In one possible implementation mode, an air inlet grille which is communicated from inside to outside is arranged on one side wall of the refrigeration box, an air outlet hole which is arranged opposite to the air inlet grille is arranged on the other side wall of the refrigeration box, the air inlet grille is arranged close to the bottom of the refrigeration box, and the air outlet hole is arranged close to the top of the refrigeration box;
a negative pressure fan positioned at the inner side of the air inlet grille and an air supply fan arranged close to the air outlet hole are also arranged in the refrigeration box;
the air supply fans are arranged on two sides of the air supply direction respectively, and air outlets of the air supply fans are arranged towards the air outlet holes.
In some embodiments, the air inlet grille comprises a plurality of air inlet holes which are vertically arranged at intervals, the air inlet holes are elongated holes extending along the horizontal direction, and the upper edges of the air inlet holes are provided with grille eaves extending towards the outer lower part of the refrigeration box;
the venthole is the rectangular hole that extends along the horizontal direction, is equipped with the filter screen in the venthole, and the venthole is greater than the inlet port in the ascending width of up-down side from top to bottom, and the reason goes up on the venthole is equipped with the eaves that shelters from that extend to the outer below of refrigeration case.
In one possible implementation, the heat regulating device of the large power supply unit further includes a natural cooling unit, and the natural cooling unit includes:
the auxiliary box is arranged at the back of the electric box, a cooler for supplying cold air into the electric box is arranged in the auxiliary box, and the auxiliary box is communicated with the electric box through an air inlet;
the external cooling box is internally provided with a natural heat exchanger, the external cooling box and the auxiliary box are arranged at intervals and are connected through a first medium pipe and a second medium pipe, the first medium pipe is used for conveying media from the auxiliary box to the external cooling box, and the second medium pipe is used for conveying media from the external cooling box to the auxiliary box;
the cooling fan is arranged in the auxiliary box and used for blowing the cold air generated by the cooler into the electric box;
the high-efficiency filter is embedded in the air passing opening and used for filtering cold air.
In some embodiments, the middle part of the natural heat exchanger arches towards the bending part close to one side of the auxiliary box and forms an air receiving cavity with an outward opening at one side departing from the auxiliary box, an air supply opening is arranged on one side wall of the external cooling box adjacent to the air receiving cavity, and an enhanced fan used for supplying cold air to the air receiving cavity is arranged in the air supply opening.
In some embodiments, the first medium pipe is provided with a feeding pump, the electric box is internally provided with a first temperature measuring instrument, and the external cooling box is internally provided with a second temperature measuring instrument;
the large power supply unit heat regulating and controlling device also comprises a controller, wherein the controller is electrically connected with the first temperature measuring instrument to receive a first temperature parameter of the first temperature measuring instrument;
the controller is electrically connected with the second temperature measuring instrument to receive the second temperature parameter of the first temperature measuring instrument.
In some embodiments, a first control part is arranged on the gas-liquid compressor, a second control part is arranged on the liquid-gas converter, a third control part is arranged on the natural cooling unit, the controller is electrically connected with the first control part to control the gas-liquid compressor to be started and stopped, the controller is electrically connected with the second control part to control the liquid-gas converter to be started and stopped, and the controller is electrically connected with the third control part to control the natural cooling unit to be started and stopped.
In some embodiments, the liquid-gas converters are disposed on the top of the electrical box and spaced apart along the long side direction of the electrical box, the auxiliary box is disposed at the bottom of the back side of the electrical box, and the auxiliary box is disposed near the middle of the long side direction of the electrical box.
Compared with the prior art, the scheme shown in the embodiment of the application has the advantages that the large power supply unit heat regulation and control device provided by the embodiment of the application compresses air into a liquid state from a gas state by using the gas-liquid compressor, liquid gas is conveyed into the liquid-gas converter through the first pipeline, the heat energy in the electrical box is absorbed by the process of converting the liquid gas into the gaseous gas, the temperature of the electrical component concentrated region in the electrical box is effectively reduced, and the normal operation of equipment is ensured.
And then, conveying the gas carrying heat energy into the gas-liquid compressor again from the second pipeline, recompressing the gaseous gas under the action of the gas-liquid compressor to form liquid gas, and then, re-entering the liquid-gas converter through the first pipeline to absorb heat and cool the electric box, and circulating the steps to realize the effect of continuous cooling.
The liquid-gas conversion machines are connected in parallel, can be uniformly distributed in the electric box, absorb heat and cool different areas of the electric box, are convenient to improve cooling efficiency, can achieve the effect of balanced cooling of the electric box, and are beneficial to prolonging the service life of an electric element. The invention also provides a regulation and control method suitable for the large power supply unit heat regulation and control device, which comprises the following steps:
the controller collects a first temperature parameter of the first temperature measuring instrument, and calculates an actual basic difference value of the first temperature parameter and a preset basic temperature parameter according to a preset program;
if the actual basic difference value is larger than the preset basic difference value, the controller sends a control instruction to the first control piece to start the gas-liquid compressor, and sends a control instruction to the second control piece to start the gas-liquid conversion machine.
In a possible implementation manner, after the controller collects the first temperature parameter of the first temperature measuring instrument,
the controller acquires a second temperature parameter of the second temperature measuring instrument and obtains an actual internal and external temperature difference value of the first temperature parameter and the second temperature parameter through an auxiliary preset program;
and if the actual internal and external temperature difference value is greater than the preset internal and external difference value, the controller sends a control instruction to a third control element to start the natural cooling unit.
Compared with the prior art, the large-scale power supply unit heat regulation and control device that this embodiment provided, the controller obtains first temperature parameter and second temperature parameter through first predetermined degree, and obtain the inside and outside difference of reality, when the inside and outside difference of reality is greater than the inside and outside difference of presetting, be fit for adopting the natural cooling unit to cool down, after cooling for a certain time, gather first temperature parameter once more, if the cooling effect is not enough, then start gas-liquid compressor and liquid gas conversion machine, further cool down the cooling to the electric box, the realization is to the abundant cooling in the electric box, so that satisfy electric elements's normal operating requirement.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the embodiments or the prior art description will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings may be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic sectional view of a front view of a heat regulation and control device of a large power supply unit according to an embodiment of the present invention;
fig. 2 is a schematic top view partially cross-sectional structural diagram of a heat regulation device of a large power supply unit according to an embodiment of the present invention;
FIG. 3 is a schematic top sectional view of the cooling box of FIG. 1 according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1. a refrigeration case; 11. an air inlet grille; 111. an air inlet; 112. a grid eave; 12. an air outlet; 121. a filter screen; 122. covering the eaves; 13. a negative pressure fan; 14. an air supply fan; 2. a gas-liquid compressor; 21. a first pipeline; 22. a second pipeline; 23. a pressure regulating valve; 3. a liquid-gas converter; 4. an electric box; 41. an air passing port; 42. a first temperature measuring instrument; 5. a natural cooling unit; 51. an auxiliary tank; 511. a second temperature measuring instrument; 52. an external cooling box; 53. a high efficiency filter; 54. a cooler; 55. a natural heat exchanger; 551. a wind receiving cavity; 56. a first medium pipe; 561. a feed pump; 57. a second medium pipe; 58. a cooling fan; 59. and (4) enhancing the fan.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or be indirectly on the other element. It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be constructed in a particular operation, and are therefore not to be considered limiting.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or several of that feature. In the description of the present invention, "a number" means two or more unless specifically limited otherwise.
Referring to fig. 1 to fig. 3, a heat regulation device and a heat regulation method for a large power supply unit according to the present invention will now be described. The large power supply unit heat regulation and control device comprises a refrigeration box 1, a gas-liquid compressor 2 and a plurality of gas-liquid converters 3;
the refrigeration box 1 is arranged at the bottom of the electric box 4;
the gas-liquid compressor 2 is arranged in the refrigeration box 1 and used for compressing and converting gaseous gas into liquid gas, and the outlet end of the gas-liquid compressor 2 is connected with a first pipeline 21 extending into the electric box 4;
the plurality of liquid-gas converters 3 are connected in parallel to the outlet end of the first pipeline 21 and used for converting liquid gas into gaseous gas to absorb heat energy in the electric box 4, the outlet end of the liquid-gas converter 3 is connected with a second pipeline 22, and the outlet end of the second pipeline 22 is connected with the gas-liquid compressor 2;
wherein, the first pipeline 21 is provided with a pressure regulating valve 23 to control the conversion amount of the liquid gas to the gaseous gas.
Compared with the prior art, the heat regulation and control device for the large power supply unit provided by the embodiment compresses air into a liquid state from a gas state by using the gas-liquid compressor 2, and sends the liquid gas into the liquid-gas converter 3 through the first pipeline 21, and absorbs heat energy in the electrical box 4 by using the process of converting the liquid gas into the gaseous gas, so that the temperature of the electrical element concentrated region in the electrical box 4 is effectively reduced, and the normal operation of equipment is ensured.
Then, the gas carrying the heat energy is conveyed into the gas-liquid compressor 2 again from the second pipeline 22, the gaseous gas is compressed again under the action of the gas-liquid compressor 2 to form liquid gas, and then enters the liquid-gas converter 3 again through the first pipeline 21 to absorb heat and cool the electric box 4, and the above steps are circulated, so that the effect of continuous cooling is realized.
A plurality of liquid gas conversion machines 3 adopt parallel connection's form, can be in electric box 4 evenly distributed, carry out the heat absorption cooling to the different regions of electric box 4, are convenient for improve cooling efficiency, also can reach the effect to the balanced cooling of electric box 4 simultaneously, help improving electrical elements's life.
In some possible implementations, the refrigeration case 1 of the above-described character adopts the structure shown in fig. 1 and 3. Referring to fig. 1 and 3, an air inlet grille 11 which is through inside and outside is arranged on one side wall of the refrigeration box 1, an air outlet 12 which is arranged opposite to the air inlet grille 11 is arranged on the other side wall of the refrigeration box 1, the air inlet grille 11 is arranged near the bottom of the refrigeration box 1, and the air outlet 12 is arranged near the top of the refrigeration box 1;
a negative pressure fan 13 positioned at the inner side of the air inlet grille 11 and an air supply fan 14 arranged close to the air outlet 12 are also arranged in the refrigeration box 1;
the number of the air supply fans 14 is two, the two air supply fans 14 are respectively arranged on two sides of the air supply direction, and the air outlet of the air supply fan 14 faces the air outlet 12.
Can release a large amount of heats in the 2 working processes of gas-liquid compressor in refrigeration case 1, in this embodiment, carry above-mentioned heat to refrigeration case 1 outside with the help of gas, set up and make and form the negative pressure environment in refrigeration case 1 at 11 inboard negative-pressure air fan 13 of air-inlet grille, make the lower gas of outside temperature get into fast in refrigeration case 1, accelerated the flow of gas in refrigeration case 1, make gas-liquid compressor 2 steady operation, in order to guarantee the normal operating of electric wire netting equipment.
On this basis, the air current in the refrigeration case 1 receives the effect of the air supply fan 14 of venthole 12 one side, is delivered to the refrigeration case 1 outside fast, has improved the circulation rate of air current in the refrigeration case 1 for the regional cooling efficiency of gas-liquid compressor 2 has guaranteed the steady operation of equipment.
In some embodiments, the air inlet grille 11 includes a plurality of air inlet holes 111 arranged at intervals in the vertical direction, the air inlet holes 111 are elongated holes extending along the horizontal direction, and a grille ledge 112 extending toward the outer lower portion of the refrigeration case 1 is provided on the upper edge of the air inlet holes 111;
the air outlet 12 is a rectangular hole extending along the horizontal direction, a filter screen 121 is arranged in the air outlet 12, the width of the air outlet 12 in the up-down direction is larger than that of the air inlet 111 in the up-down direction, and a shielding eave 122 extending towards the outer lower side of the refrigeration box 1 is arranged on the upper edge of the air outlet 12.
In this embodiment, the air inlet holes 111 are elongated holes extending in the horizontal direction, the horizontal length of the air inlet holes 111 is smaller than the vertical height, and the air inlet holes 111 are arranged at intervals in the vertical direction, so that the air inlet area can be increased, and external impurities can be effectively blocked.
On this basis, still set up grid eaves 112 on the upper reason of venthole 12, grid eaves 112 can realize the effect of blockking to debris on the one hand, and on the other hand can also avoid rainwater or snow water to get into in the refrigeration case 1, avoids causing the damage of equipment.
The air outlet 12 is a rectangular hole structure, and has a large passing area, and under the action of the air supply fan 14, air flow can be smoothly discharged from the air outlet 12. Further, the air outlet 12 is arranged at a position close to the upper part of the refrigeration box 1, and the hot air flow with higher temperature can be positioned at a higher position in the refrigeration box 1, so that the air outlet 12 is arranged at the upper part of the refrigeration box 1, and the hot air flow can be smoothly discharged, so that the heat in the refrigeration box 1 can be taken out.
The air inlet holes 111 are arranged at the lower position of the lower part of the refrigerating box 1, can effectively absorb gas with lower heat in the external environment, and can absorb heat in the refrigerating box 1 by utilizing the lower self temperature of the gas so as to carry more heat out in a portable mode.
The shielding eaves 122 disposed on the upper edge of the air outlet 12 can prevent rain and snow from entering, and in addition, under the blowing action of the blower fan 14, the entry of impurities and rain and snow at the position of the air outlet 12 can be prevented.
In some possible implementations, referring to fig. 2, the large power supply unit heat regulating device further includes a natural cooling unit 5, the natural cooling unit 5 includes an auxiliary tank 51, an external cooling tank 52 and a high efficiency filter 53,
the auxiliary box 51 is arranged at the back of the electrical box 4, a cooler 54 for supplying cold air into the electrical box 4 is arranged in the auxiliary box 51, and the auxiliary box 51 is communicated with the electrical box 4 through an air inlet 41;
a natural heat exchanger 55 is arranged inside the external cooling box 52, the external cooling box 52 and the auxiliary box 51 are arranged at intervals, the external cooling box 52 and the cooler 54 are connected through a first medium pipe 56 and a second medium pipe 57, the first medium pipe 56 is used for conveying a medium from the auxiliary box 51 into the external cooling box 52, and the second medium pipe 57 is used for conveying a medium from the external cooling box 52 into the auxiliary box 51;
a cooling fan 58 disposed in the auxiliary box 51 for blowing the cold air generated by the cooler 54 into the electrical box 4;
the high efficiency filter 53 is embedded in the air inlet 41 for filtering cold air, and the high efficiency filter 53 is mainly used for trapping particle dust and various suspended matters above 0.5um, and can effectively filter the cold air entering the electric box 4.
In addition to cooling the electric box 4 by the gas-liquid compressor 2 and the gas-liquid converter 3, a natural cooling unit 5 is provided. When the external environment temperature is low, such as in autumn and winter seasons, the electrical box 4 can be cooled by the external low environment temperature.
The auxiliary box 51 is directly communicated with the inside of the electric box 4 through the air passing opening 41, and heat exchange is performed between the cooler 54 in the auxiliary box 51 and the natural heat exchanger 55 in the external cooling box 52 through heat exchange. The medium is cooled in the natural heat exchanger 55 and then sent to the cooler 54 in the auxiliary box 51, the cooling fan 58 blows the cold air in the auxiliary box 51 to the air inlet 41, and the cold air is filtered by the high-efficiency filter 53 and then enters the air box 4, so that the effective cooling of the electric box 4 is realized.
The auxiliary box 51 is disposed at the back of the electrical box 4, and facilitates the operation of electrical components on the front of the electrical box 4. The high-speed filter is embedded in the air passing opening 41, so that cold air entering the electric box 4 can be effectively filtered, external impurities are prevented from entering the electric box 4, the interior of the electric box 4 is kept clean, and the influence on electrical elements is avoided.
In some embodiments, the above-described features of the natural heat exchanger 55 may be configured as shown in fig. 2. Referring to fig. 2, the middle portion of the natural heat exchanger 55 is curved and arched towards one side close to the auxiliary box 51, and an air receiving cavity 551 with an outward opening is formed at one side away from the auxiliary box 51, an air supply opening is arranged on one side wall of the external cooling box 52 adjacent to the air receiving cavity 551, and an enhancement fan 59 for supplying cold air into the air receiving cavity 551 is installed in the air supply opening.
The natural heat exchanger 55 is of a bent structure, the air receiving cavity 551 formed inside the natural heat exchanger corresponds to the air supply opening in the external cooling box 52, air is supplied into the external cooling box 52 through the reinforcing fan 59, the inner wall of the air receiving cavity 551 has a larger contact area with low-temperature gas, and the natural heat exchanger 55 has a better cooling effect on internal media.
In some embodiments, referring to fig. 2, the first medium pipe 56 is provided with a supply pump 561, the electrical box 4 is provided with a first temperature measuring instrument 42, and the external cooling box 52 is provided with a second temperature measuring instrument 511;
the large power supply unit heat regulating device further comprises a controller, wherein the controller is electrically connected with the first temperature measuring instrument 42 to receive a first temperature parameter of the first temperature measuring instrument 42;
the controller is electrically connected to the second temperature gauge 511 to receive the second temperature parameter of the first temperature gauge 42.
In this embodiment, the first medium pipe 56 is provided with a feeding pump 561 and a pressure regulator, the feeding pump 561 enables the medium to have a certain feeding pressure in the first medium pipe 56, and the pressure regulator can keep the flow rate of the medium constant, so as to ensure the orderly circulation of the medium in the whole pipeline. The first temperature measuring instrument 42 arranged in the electric box 4 can monitor the temperature in the electric box 4 at any time, the second temperature measuring instrument 511 arranged in the external cooling box 52 can effectively monitor the external environment temperature, whether the natural cooling unit 5 is started or not is judged by comparing the temperature difference between the external environment temperature and the temperature in the electric box 4, the energy consumption of the gas-liquid compressor 2 and the liquid-gas converter 3 can be effectively reduced by means of the cooling effect of the natural cooling unit 5, and the reasonable utilization of resources is realized.
The controller receives the first temperature parameter and the second temperature parameter, calculates a difference value between the two temperature parameters according to a preset program, and starts the natural cooling unit 5 when the difference value is large enough to meet a condition of cooling by using the natural cooling unit 5, so as to realize effective cooling in the electrical box 4.
In some embodiments, a first control part is disposed on the gas-liquid compressor 2, a second control part is disposed on the liquid-gas converter 3, a third control part is disposed on the natural cooling unit 5, the controller is electrically connected to the first control part to control the opening and closing of the gas-liquid compressor 2, the controller is electrically connected to the second control part to control the opening and closing of the liquid-gas converter 3, and the controller is electrically connected to the third control part to control the opening and closing of the natural cooling unit 5.
In order to realize the automatic control of the equipment, a first control element is arranged on the gas-liquid compressor 2, and a second control element is arranged on the liquid conversion machine. On the premise that the cooling condition is satisfied, the controller preferentially activates the third control part to turn on the natural cooling unit 5. When it is difficult to satisfy the internal cooling of the electric box 4 by the natural cooling unit 5, the gas-liquid compressor 2 and the liquid-gas converter 3 are started by the controller.
In some embodiments, the hydro-pneumatic converter 3 described above may be configured as shown in fig. 1. Referring to fig. 1, the liquid-gas converter 3 is disposed on the top of the electrical box 4 and distributed at intervals along the long-side direction of the electrical box 4, the auxiliary box 51 is disposed at the bottom of the back side of the electrical box 4, and the auxiliary box 51 is disposed near the middle of the electrical box 4 in the long-side direction.
The hydro-pneumatic transducer 3 is arranged on top of the electrical box 4, and radiation coverage of the headspace of the electrical box 4 is achieved by a plurality of hydro-transducers. The liquid-gas converter 3 can absorb heat energy in the electrical box 4 when converting liquid gas into gaseous gas, so that the temperature at the top of the electrical box 4 is effectively reduced, at the moment, low-temperature gas at the top in the electrical box 4 tends to move downwards and sinks from the upper part to the bottom of the electrical box 4, and the inside of the electrical box 4 is fully cooled.
The auxiliary box 51 is disposed at the back of the electrical box 4 and near the lower portion of the electrical box 4, and the corresponding air passing opening 41 is also disposed near the lower portion of the electrical box 4, so as to effectively cool the lower region of the electrical box 4.
Based on the same inventive concept, the embodiment of the application also provides a regulation and control method suitable for the heat regulation and control device of the large power supply unit, which comprises the following steps:
the controller collects a first temperature parameter of the first temperature measuring instrument 42, collects a second temperature parameter of the second temperature measuring instrument 511, and obtains an actual internal and external temperature difference value of the first temperature parameter and the second temperature parameter through an auxiliary preset program;
if the actual internal and external temperature difference value is larger than the preset internal and external difference value, the controller sends a control instruction to the third control part to start the natural cooling unit 5, after the operation is carried out for a certain time, the controller collects the first temperature parameter of the first temperature measuring instrument 42, and the actual basic difference value between the first temperature parameter and the preset basic temperature parameter is calculated according to a preset program;
if the actual basic difference is larger than the preset basic difference, the controller sends a control command to the first control element to start the gas-liquid compressor 2 and sends a control command to the second control element to start the gas-liquid converter 3.
Compared with the prior art, the large power supply unit heat regulation and control device provided by the embodiment has the advantages that the controller obtains the first temperature parameter and the second temperature parameter through the first preset degree, obtains the actual internal and external difference value, and when the actual internal and external difference value is greater than the preset internal and external difference value, the gas-liquid compressor 2 and the gas-liquid converter 3 are started to further cool the electric box 4, so that the electric box 4 is fully cooled, and the normal working requirements of electric elements are met.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Large-scale power supply unit heat regulation and control device, its characterized in that includes:
the refrigeration box is arranged at the bottom of the electric box;
the gas-liquid compressor is arranged in the refrigeration box and used for compressing and converting gaseous gas into liquid gas, and the outlet end of the gas-liquid compressor is connected with a first pipeline extending into the electric box;
the liquid-gas converters are connected to the outlet end of the first pipeline in parallel and used for converting liquid gas into gaseous gas so as to absorb heat energy in the electrical box, the outlet end of the liquid-gas converters is connected with a second pipeline, and the outlet end of the second pipeline is connected with the gas-liquid compressor;
wherein, a pressure regulating valve is arranged on the first pipeline to control the conversion amount from the liquid gas to the gaseous gas.
2. The large power supply unit heat regulating device according to claim 1, wherein an air inlet grille is provided on one side wall of the refrigeration box, the inside and outside of the air inlet grille being through, an air outlet hole provided opposite to the air inlet grille is provided on the other side wall of the refrigeration box, the air inlet grille is provided near the bottom of the refrigeration box, and the air outlet hole is provided near the top of the refrigeration box;
a negative pressure fan positioned on the inner side of the air inlet grille and an air supply fan arranged close to the air outlet hole are also arranged in the refrigeration box;
the air supply fan is provided with two, two the air supply fan sets up respectively in the both sides of air supply wind direction, just the air outlet orientation of air supply fan the venthole sets up.
3. The large power supply unit heat regulating device according to claim 2, wherein the air inlet grille comprises a plurality of air inlet holes arranged at intervals in the vertical direction, the air inlet holes are elongated holes extending along the horizontal direction, and the upper edge of each air inlet hole is provided with a grille ledge extending towards the outer lower part of the refrigeration box;
the air outlet is a rectangular hole extending along the horizontal direction, a filter screen is arranged in the air outlet, the width of the air outlet in the vertical direction is larger than that of the air inlet in the vertical direction, and a shielding eave extending towards the outer lower part of the refrigeration box is arranged on the upper edge of the air outlet.
4. The large scale power supply unit heat management apparatus according to any one of claims 1 to 3, further comprising a free cooling unit, the free cooling unit comprising:
the auxiliary box is arranged at the back of the electrical box, a cooler for supplying cold air into the electrical box is arranged in the auxiliary box, and the auxiliary box is communicated with the electrical box through an air inlet;
the external cooling box is internally provided with a natural heat exchanger, the external cooling box and the auxiliary box are arranged at intervals and are connected through a first medium pipe and a second medium pipe, the first medium pipe is used for conveying a medium from the auxiliary box into the external cooling box, and the second medium pipe is used for conveying a medium from the external cooling box into the auxiliary box;
the cooling fan is arranged in the auxiliary box and used for blowing the cold air generated by the cooler into the electrical box;
and the high-efficiency filter is embedded in the air passing opening and used for filtering the cold air.
5. The large power supply unit heat regulating device according to claim 4, wherein the middle portion of the natural heat exchanger is curved and arched towards a side close to the auxiliary box, and an air receiving cavity with an outward opening is formed at a side away from the auxiliary box, an air supply opening is formed in a side wall of the external cooling box adjacent to the air receiving cavity, and an enhanced fan for supplying cold air into the air receiving cavity is installed in the air supply opening.
6. The large power supply unit heat regulating device according to claim 4, wherein a supply pump is provided on said first medium pipe, a first temperature measuring instrument is provided in said electric box, and a second temperature measuring instrument is provided in said external cooling box;
the large power supply unit heat regulation and control device further comprises a controller, wherein the controller is electrically connected with the first temperature measuring instrument to receive a first temperature parameter of the first temperature measuring instrument;
the controller is electrically connected with the second temperature measuring instrument to receive the second temperature parameter of the first temperature measuring instrument.
7. The large power supply unit heat regulating device according to claim 6, wherein a first control member is provided on the gas-liquid compressor, a second control member is provided on the liquid-gas converter, a third control member is provided on the natural cooling unit, the controller is electrically connected to the first control member to control the gas-liquid compressor to be turned on and off, the controller is electrically connected to the second control member to control the liquid-gas converter to be turned on and off, and the controller is electrically connected to the third control member to control the natural cooling unit to be turned on and off.
8. The large power supply unit heat regulating device according to claim 4, wherein the liquid-gas converters are disposed on the top of the electrical box and spaced apart from each other along the long side direction of the electrical box, the auxiliary box is disposed at the bottom of the back side of the electrical box, and the auxiliary box is disposed near the middle of the electrical box along the long side direction.
9. A regulation and control method of a large power supply unit heat regulation and control device suitable for any one of claims 1-8, characterized by comprising the following steps:
the method comprises the steps that a controller collects a first temperature parameter of a first temperature measuring instrument, and an actual basic difference value of the first temperature parameter and a preset basic temperature parameter is calculated according to a preset program;
and if the actual basic difference value is larger than the preset basic difference value, the controller sends a control instruction to a first control element to start the gas-liquid compressor and sends a control instruction to a second control element to start the gas-liquid conversion machine.
10. The large power supply unit heat regulating method according to claim 9, further comprising, after the controller collects the first temperature parameter of the first temperature gauge:
the controller acquires a second temperature parameter of a second temperature measuring instrument and obtains an actual internal and external temperature difference value of the first temperature parameter and the second temperature parameter through an auxiliary preset program;
and if the actual internal and external temperature difference value is larger than the preset internal and external difference value, the controller sends a control instruction to a third control part to start the natural cooling unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210435014.0A CN114640043A (en) | 2022-04-24 | 2022-04-24 | Large power supply unit heat regulation and control device and regulation and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210435014.0A CN114640043A (en) | 2022-04-24 | 2022-04-24 | Large power supply unit heat regulation and control device and regulation and control method |
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| CN114640043A true CN114640043A (en) | 2022-06-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119726445A (en) * | 2025-02-28 | 2025-03-28 | 国网电动汽车服务湖北有限公司 | A box-type power supply control cabinet |
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