CN101916970A - Indoor ventilation system of transformer substation and design method thereof - Google Patents
Indoor ventilation system of transformer substation and design method thereof Download PDFInfo
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Abstract
The invention provides a design method of an indoor ventilation system of a transformer substation. The ventilation system comprises at least one of the following devices: an air inlet, a heat radiator, an air outlet and a cooling fan. The design method comprises the following steps of: firstly, setting boundary conditions, wherein the boundary conditions at least comprise one of the following parameters: the heat flow boundary of the heat radiator, the effective area and the inlet air temperature of the air inlet and the air quantity of an exhaust fan; simulating at least one ventilation system physical model by using CFD (Computational Fluid Dynamics) according to the boundary conditions; analyzing the simulation results of the ventilation system physical model through the CFD; and determining the optimal ventilation system physical model according to the simulation results. The invention also provides an indoor ventilation system designed by the design method. In the invention, the reasonableness of various indoor ventilation systems can be analyzed, so that a reasonable indoor ventilation system can be designed.
Description
Technical field
The present invention relates to the room ventilation field of transformer station, relate in particular to the method for designing of the indoor ventilation system of transformer station.
Background technology
When the indoor ventilation system of design transformer station, normally settle ventilation equipment in the position of thinking fit at present, whether rationally then can't predict for the arrangement of ventilation equipment according to people's experience.
In addition, when the ventilation effect of the ventilation equipment settled is analyzed, normally carry out the calculating of exhaust air rate and intake, calculate air-admitting surface and exhaust blower air quantity again with traditional mathematical tool.But calculate ventilation effect like this and have following problem: 1, traditional mathematical tool only is the state analysis of an equalization, for the details in the concrete engineering, is difficult to carry out deep analysis.2, the means of present calculating ventilation effect cannot be visual, detailsization, no powerful design theory foundation.3. the different designs scheme can not compare technically.4. just qualitative research of traditional mathematical tool research can not realize quantification, and cost control, deep design are caused adverse effect.
Summary of the invention
The invention provides a kind of indoor ventilation system method for designing of transformer station, can simulate rational indoor ventilation system, and can analyze the reasonability of various indoor ventilation systems.
The present invention also provides a kind of indoor ventilation system, and it can reach good ventilation effect.
The invention provides a kind of indoor ventilation system of transformer station, comprising:
Outside blinds air inlet is positioned at the student portion at main transformer room gate;
Indoor blinds air inlet is positioned at the transformer chamber body of wall bottom relative with described main transformer room gate;
Exhaust outlet is positioned at described main transformer room top;
Two radiators are installed on the both sides of described main transformer respectively;
Four cooling blowers, wherein, two described cooling blowers are installed in every described radiator bottom.
The present invention also provides a kind of indoor ventilation system method for designing of transformer station, and described ventilating system comprises at least a following equipment: air inlet, radiator, exhaust outlet and cooling blower; Comprise step:
Boundary condition is set, and described boundary condition comprises at least with the next one: with effective area, the inlet temperature of the hot-fluid border of described radiator, described air inlet; The air quantity of exhaust blower;
Utilize CFD to simulate at least a ventilating system physical model according to described boundary condition;
Analyze the analog result of described ventilating system physical model by CFD;
Determine optimal ventilation system physical model according to described analog result.
Utilize the indoor ventilation system method for designing of transformer station provided by the invention can design rational draft type, and utilize the indoor ventilation system of the transformer station provided by the invention that this method for designing designs, main transformer radiator heat-dissipation efficient height, temperature of outgoing air is even, the main transformer indoor temperature more evenly, lower, thereby main transformer can higher load move, and does not need to have a power failure and transforms transformer chamber's Design of ventilation, makes it Energy Efficiency Ratio and reaches the highest.The secondary improvement expenses is less in addition: a large amount of heats that irrational Design of ventilation can not produce main transformer normal loss are effectively discharged outdoor, thereby the main transformer room temperature is sharply raise, cause the main transformer can only underrun or can not normally move, this just needs to transform the Design of ventilation of main transformer room; Transform transformer chamber's Design of ventilation thereby cause needs to have a power failure, need more ventilating fan, the civil engineering aspect need drive into again, air outlet, and distribution box and cable also will be changed again.
Description of drawings
Fig. 1 is the flow chart of the indoor ventilation system method for designing of transformer station of the present invention;
Fig. 2 is the ventilating system physical model of setting up by CFD;
Fig. 3-1 is the vertical temperature color range figure of exhaust outlet place that analyzes the first kind of ventilating system physical model that obtains by CFD;
Fig. 3-2 is an exhaust outlet place vertical velocity arrow plot;
Fig. 3-3 is the middle part temperature color range figure of transformer chamber;
Fig. 3-4 is transformer chamber's middle part speed arrow plot;
Fig. 3-5 is the temperature color range figure of transformer chamber 2m place;
The vertical temperature color range figure of Fig. 4-1 exhaust outlet place
Fig. 4-2 exhaust outlet place vertical velocity arrow plot
The middle part temperature color range figure of Fig. 4-3 transformer chamber
Fig. 4-4 transformer chamber middle part speed arrow plot
The vertical temperature color range figure of Fig. 4-5 exhaust outlet place
The vertical temperature color range figure of Fig. 5-1 exhaust outlet place
Fig. 5-2 exhaust outlet place vertical velocity arrow plot
The middle part Temperature Distribution color range figure of Fig. 5-3 transformer chamber
Fig. 5-4 transformer chamber middle part speed arrow plot
Fig. 5-5 2m of transformer chamber height Temperature Distribution
The vertical temperature color range figure of Fig. 6-1 exhaust outlet place
Fig. 6-2 exhaust outlet place vertical velocity arrow plot
The middle part Temperature Distribution color range figure of Fig. 6-3 transformer chamber
Fig. 6-4 transformer chamber middle part speed arrow plot
Fig. 6-5 2m of transformer chamber height Temperature Distribution
The vertical temperature color range figure of Fig. 7-1 exhaust outlet place
Fig. 7-2 exhaust outlet place vertical velocity arrow plot
The middle part Temperature Distribution color range figure of Fig. 7-3 transformer chamber
Fig. 7-4 transformer chamber middle part speed arrow plot
Fig. 7-5 2m of transformer chamber height Temperature Distribution
The vertical temperature color range figure of Fig. 8-1 exhaust outlet place
Fig. 8-2 exhaust outlet place vertical velocity arrow plot
The middle part Temperature Distribution color range figure of Fig. 8-3 transformer chamber
Fig. 8-4 transformer chamber middle part speed arrow plot
Fig. 8-5 2m of transformer chamber height Temperature Distribution
Embodiment
The invention provides a kind of indoor ventilation system method for designing of transformer station, by CFD (Computational Fluid Dynamics, the core technology of numerical simulation is a computational fluid dynamics) set up the model of multiple indoor ventilating system, and calculate the ventilation effect of various indoor ventilation system models by CFD, compare, obtain the indoor ventilation system of best indoor ventilation system model as the transformer station of reality.The ventilating system of transformer station generally includes: one or more equipment in air inlet, radiator and the cooling blower etc., the ventilation equipment that the present invention selects during as design ventilating system model with one or more in these equipment.
The indoor ventilation system method for designing of transformer station provided by the invention as shown in Figure 1, comprise step: boundary condition (S1) at first is set, these boundary conditions can be according to the existing of various ventilation equipment and the parameter setting that has calculated, and boundary condition comprises following a kind of at least: the exhaust air rate of the hot-fluid border of radiator, the effective area of air inlet, inlet temperature, exhaust blower etc.; Design the position of various ventilation equipment then according to the boundary condition that sets, utilize CFD to simulate at least a ventilating system physical model (S2); Then analyze the analog result (S3) of various ventilating system physical models by CFD; Determine optimal ventilation system physical model (S4) according to described analog result at last.
Simulated six kinds of ventilating system physical models in the present invention, first kind of ventilating system physical model comprises a radiator and an air inlet, and radiator is installed on main transformer one side; Air inlet is an outside blinds air inlet, is arranged at bottom, main transformer room gate;
Second kind of ventilating system physical model comprises a radiator and two air inlets, and radiator is installed on described main transformer one side; Air inlet comprises outside blinds air inlet and indoor blinds air inlet, and outside blinds air inlet is arranged at bottom, main transformer room gate; Indoor blinds air inlet is arranged at relative transformer chamber body of wall bottom, transformer chamber gate;
The third ventilating system physical model comprises a radiator and an air inlet; Radiator is installed on main transformer one side; Air inlet is a main transformer below air inlet;
The 4th kind of ventilating system physical model comprises two radiators and four cooling blowers and outside blinds air inlet, and radiator is installed on the main transformer both sides; Two described cooling blowers are installed in every described radiator bottom;
The 5th kind of ventilating system physical model comprises two radiators and four cooling blowers and main transformer below air inlet; Radiator is installed on the main transformer both sides respectively; Wherein, two described cooling blowers are installed in every described radiator bottom;
The 6th kind of ventilating system physical model comprises two radiators, four cooling blowers and two air inlets, and radiator is installed on the main transformer both sides respectively; Wherein, two described cooling blowers are installed in every described radiator bottom; Air inlet comprises outside blinds air inlet and indoor blinds air inlet.
According to above method for designing, by CFD above six kinds of ventilating system models are carried out sunykatuib analysis successively, the 6th kind of ventilating system model is defined as best ventilating system model the most at last.A kind of indoor ventilation system of transformer station is provided in the present invention simultaneously, and this indoor ventilation system is with the indoor ventilation system of the ventilation equipment in above-mentioned the 6th kind of ventilating system model as this transformer station.Specifically comprise: outside blinds air inlet is positioned at the student portion at main transformer room gate; Indoor blinds air inlet is positioned at the transformer chamber body of wall bottom relative with described main transformer room gate; Exhaust outlet is positioned at described main transformer room top; Two radiators are installed on the both sides of described main transformer respectively; Four cooling blowers, wherein, two described cooling blowers are installed in every described radiator bottom.
In order more clearly to understand the present invention, below enumerate the application example of a method for designing of the present invention, and pass through the ventilation effect of proof of analog result indoor ventilation system of the present invention.
Should use in the example, boundary condition is provided with as follows: the main boundary condition of model is provided with as follows:
Radiator: radiator is set to the hot-fluid border, and density of heat flow rate is identical with the main transformer wastage in bulk or weight;
Air inlet: effective area is 8m altogether
2, according to different arrangement, 32 ℃ of the inlet temperature adjusted of scheme;
Exhaust outlet: air quantity 86800CMH;
Main transformer cooling fan: FAN border, air quantity 12500CMH, 4;
Fig. 2 is the ventilating system physical model of setting up by CFD.
As follows according to six kinds of ventilating system physical models that above-mentioned boundary condition is set up:
First kind: one-sided radiator, radiator heat current density are 300KW; Outside blinds air inlet, air-admitting surface 8m
2
Second kind: one-sided radiator, radiator heat current density are 300KW; Outside blinds air inlet, indoor blinds air inlet; Each 4m of incoming air area
2
The third: one-sided radiator, radiator heat current density are 300KW; Main transformer below air inlet, incoming air area 8m
2
The 4th kind: the bilateral radiator, every radiator heat current density is 150KW, joins two cooling blowers, totally four; Outside blinds air inlet, incoming air area 8m
2
The 5th kind: the bilateral radiator, every radiator heat current density is 150KW, joins two cooling blowers, totally four; Main transformer below air inlet, incoming air area 8m
2, each air port is 4m
2
The 6th kind: the bilateral radiator, every radiator heat current density is 150KW, joins two cooling blowers, totally four; Outside blinds air inlet, indoor blinds air inlet; Each 4m of incoming air area
2
Below be above-mentioned six kinds of schemes, analog result:
Fig. 3-1 to Fig. 3-5 be the design sketch of first kind of ventilating system physical model, carry out CFD by ventilation condition and analyze this physical model, draw as drawing a conclusion:
Adopt the air current composition mode of a radiator, air inlet, mechanical exhaust, its radiator top temperature is low than natural draft, and is evenly distributed;
Radiator top air themperature is still even inadequately, and regional area surpasses 45 ℃;
2m place air themperature is lower, and only the radiator part temperature occurs and surpasses 40 ℃, and this is relevant with the air port air-flow, but temperature distributing disproportionation is even, and the inlet side temperature is lower.
Fig. 4-1 to Fig. 4-5 be the design sketch of second kind of ventilating system physical model, carry out CFD by ventilation condition and analyze this physical model, draw as drawing a conclusion:
Adopt the air current composition mode of a radiator, two air inlets, mechanical exhaust, the overhead temperature homogeneity of its radiator makes moderate progress, but still has the subregion temperature to surpass 45 ℃;
2m place air themperature distribute than single admission evenly and temperature lower.
Fig. 5-1 to Fig. 5-5 be the design sketch of the third ventilating system physical model, carry out CFD by ventilation condition and analyze this physical model, draw as drawing a conclusion:
Adopt the air current composition of one-sided radiator, main transformer below air inlet, radiator top temperature of outgoing air is lower, and the temperature field uniformity is better, does not have temperature to surpass 45 ℃ of zones;
2m place air themperature is higher, but good uniformity does not surpass 40 ℃ of zones.
Fig. 6-1 to Fig. 6-5 be the design sketch of the 4th kind of ventilating system physical model, carry out CFD by ventilation condition and analyze this physical model, draw as drawing a conclusion:
Adopt air current composition, the radiator top temperature of outgoing air of bilateral radiator, a side air inlet higher,
The temperature field uniformity is not good, and temperatures at localized regions surpasses 45 ℃;
2m place air themperature is higher, and uniformity is bad, and no inlet side temperatures at localized regions surpasses 40 ℃.
Fig. 7-1 to Fig. 7-5 be the design sketch of the 5th kind of ventilating system physical model, carry out CFD by ventilation condition and analyze this physical model, draw as drawing a conclusion:
Adopt air current composition, the temperature of outgoing air of bilateral radiator, main transformer below air inlet even, the zone that does not have temperature to surpass 45 ℃;
2m place air themperature is higher, and the uniformity is general, does not surpass 40 ℃ of zones but have.
This scheme main transformer room floor height need increase, thereby the building height will increase, and construction cost increases; Increase on the main transformer basis, and the main transformer transport difficulty strengthens; Be not easy to implement.
Fig. 8-1 to Fig. 8-5 be the design sketch of the 6th kind of ventilating system physical model, carry out CFD by ventilation condition and analyze this physical model, draw as drawing a conclusion:
The air current composition of bilateral radiator, bilateral air inlet, radiator top temperature homogeneity makes moderate progress than single admission.
2m place air themperature is lower, and uniformity is better.
This scheme need not increase the building floor height, and building, structure are not all had influence, and transportation does not have influence yet to main transformer, is easy to implement.
By to six kinds of program analysis, draw as drawing a conclusion:
1, compare with natural draft, mechanical draft has improved indoor temperature uniformity and thermal environment greatly, and temperature of outgoing air significantly reduces;
2, compare with natural draft, mechanical draft can suitably reduce incoming air area;
3, compare with one-sided radiator, the bilateral radiator is set more helps radiator heat-dissipation;
4, the air intake mode of air intake is the most favourable to radiator heat-dissipation down;
5, for one-sided radiator, should suitably blow in no heat sink side, help improving the indoor temperature uniformity like this;
6, for the bilateral radiator, the single admission mode should not be set, it is higher to understand the guide rule local temperature like this, as being provided with, should increase air quantity;
7, the air intake mode is lowered the temperature owing to entering radiator very soon down, its radiating efficiency height, and temperature of outgoing air is even, and is favourable to main transformer stable operation, need increase but build floor height, and the main transformer transportation is difficulty, is not easy to implement.
8. the air current composition of bilateral radiator, bilateral air intake, radiator top temperature homogeneity is better, the radiating efficiency height, temperature of outgoing air is even, only has main transformer top temperatures at localized regions to surpass 45 ℃, but does not influence the personnel activity; This scheme need not increase the building floor height, and building, structure are not all had influence, does not influence the main transformer transportation, is easy to implement.
Above-described embodiment of the present invention does not constitute the qualification to protection range of the present invention.Any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection range of the present invention.
Claims (3)
1. the indoor ventilation system of a transformer station is characterized in that, comprising:
Outside blinds air inlet is positioned at the student portion at main transformer room gate;
Indoor blinds air inlet is positioned at the transformer chamber body of wall bottom relative with described main transformer room gate;
Exhaust outlet is positioned at described main transformer room top;
Two radiators are installed on the both sides of described main transformer respectively;
Four cooling blowers, wherein, two described cooling blowers are installed in every described radiator bottom.
2. the indoor ventilation system method for designing of a transformer station, described ventilating system comprises at least a following equipment: air inlet, radiator, exhaust outlet and cooling blower; It is characterized in that, comprise step:
Boundary condition is set, and described boundary condition comprises at least with the next one: with effective area, the inlet temperature of the hot-fluid border of described radiator, described air inlet; The air quantity of exhaust blower;
Utilize CFD to simulate at least a ventilating system physical model according to described boundary condition;
Analyze the analog result of described ventilating system physical model by CFD;
Determine optimal ventilation system physical model according to described analog result.
3. the indoor ventilation system method for designing of transformer station according to claim 2 is characterized in that, at least a ventilating system physical model of described CFD simulation:
The radiator of first kind of ventilating system physical model is installed on main transformer one side; Described air inlet is an outside blinds air inlet;
The radiator of second kind of ventilating system physical model is installed on described main transformer one side; Described air inlet comprises outside blinds air inlet and indoor blinds air inlet;
The radiator of the third ventilating system physical model is installed on described main transformer; Described air inlet comprises main transformer below air inlet;
The radiator of the 4th kind of ventilating system physical model is installed on described main transformer both sides; Described cooling blower has four, and wherein, two described cooling blowers are installed in every described radiator bottom; Described air inlet comprises outside blinds air inlet;
The radiator of the 5th kind of ventilating system physical model is installed on described main transformer both sides; Described cooling blower has four, and wherein, two described cooling blowers are installed in every described radiator bottom; Described air inlet comprises main transformer below air inlet;
The radiator of the 6th kind of ventilating system physical model is installed on described main transformer both sides; Four cooling blowers, wherein, two described cooling blowers are installed in every described radiator bottom; Described air inlet comprises outside blinds air inlet and indoor blinds air inlet.
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| CN 201010240824 CN101916970A (en) | 2010-07-29 | 2010-07-29 | Indoor ventilation system of transformer substation and design method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545078A (en) * | 2010-12-20 | 2012-07-04 | 上海市电力公司 | Radiating and ventilation control method for underground substation equipment |
| CN107092764A (en) * | 2017-06-14 | 2017-08-25 | 成都智建新业建筑设计咨询有限公司 | A kind of concrete assembled construction method based on BIM |
| CN107255981A (en) * | 2017-06-14 | 2017-10-17 | 成都智建新业建筑设计咨询有限公司 | A kind of super high rise building transport of materials management system based on BIM |
| CN107292012A (en) * | 2017-06-14 | 2017-10-24 | 成都智建新业建筑设计咨询有限公司 | It is a kind of based on method from BIM to skyscraper transported material |
| CN108541191A (en) * | 2018-05-07 | 2018-09-14 | 广东省电信规划设计院有限公司 | Equipment cooling structural parameter assignment method and system based on big data analysis |
| CN109540564A (en) * | 2018-12-25 | 2019-03-29 | 南方电网科学研究院有限责任公司 | Indoor transformer substation heat dispersion test system |
| CN111710034A (en) * | 2020-06-24 | 2020-09-25 | 四川长虹空调有限公司 | Method and system for simulating air output quantity in louver of outdoor unit of air conditioner |
| CN111985026A (en) * | 2020-07-27 | 2020-11-24 | 西安建筑科技大学 | High-efficiency natural ventilation design method for building based on thermal stratification height |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545078A (en) * | 2010-12-20 | 2012-07-04 | 上海市电力公司 | Radiating and ventilation control method for underground substation equipment |
| CN107092764A (en) * | 2017-06-14 | 2017-08-25 | 成都智建新业建筑设计咨询有限公司 | A kind of concrete assembled construction method based on BIM |
| CN107255981A (en) * | 2017-06-14 | 2017-10-17 | 成都智建新业建筑设计咨询有限公司 | A kind of super high rise building transport of materials management system based on BIM |
| CN107292012A (en) * | 2017-06-14 | 2017-10-24 | 成都智建新业建筑设计咨询有限公司 | It is a kind of based on method from BIM to skyscraper transported material |
| CN108541191A (en) * | 2018-05-07 | 2018-09-14 | 广东省电信规划设计院有限公司 | Equipment cooling structural parameter assignment method and system based on big data analysis |
| CN108541191B (en) * | 2018-05-07 | 2020-05-01 | 广东省电信规划设计院有限公司 | Method and system for configuring parameters of equipment heat dissipation structure based on big data analysis |
| CN109540564A (en) * | 2018-12-25 | 2019-03-29 | 南方电网科学研究院有限责任公司 | Indoor transformer substation heat dispersion test system |
| CN111710034A (en) * | 2020-06-24 | 2020-09-25 | 四川长虹空调有限公司 | Method and system for simulating air output quantity in louver of outdoor unit of air conditioner |
| CN111710034B (en) * | 2020-06-24 | 2022-06-21 | 四川长虹空调有限公司 | Method and system for simulating air output quantity in louver of outdoor unit of air conditioner |
| CN111985026A (en) * | 2020-07-27 | 2020-11-24 | 西安建筑科技大学 | High-efficiency natural ventilation design method for building based on thermal stratification height |
| CN111985026B (en) * | 2020-07-27 | 2024-02-09 | 西安建筑科技大学 | High-efficiency natural ventilation design method for building based on thermal stratification height |
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Application publication date: 20101215 |