CN201812631U - Cooling device of dry-type transformer - Google Patents

Cooling device of dry-type transformer Download PDF

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Publication number
CN201812631U
CN201812631U CN2010205602762U CN201020560276U CN201812631U CN 201812631 U CN201812631 U CN 201812631U CN 2010205602762 U CN2010205602762 U CN 2010205602762U CN 201020560276 U CN201020560276 U CN 201020560276U CN 201812631 U CN201812631 U CN 201812631U
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CN
China
Prior art keywords
air
dry
transformer
type transformer
cooling device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2010205602762U
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Chinese (zh)
Inventor
陈辉荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUANGDONG JINGDALIYA SPECIAL ENAMELED WIRE CO Ltd
Original Assignee
GUANGDONG JINGDALIYA SPECIAL ENAMELED WIRE CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GUANGDONG JINGDALIYA SPECIAL ENAMELED WIRE CO Ltd filed Critical GUANGDONG JINGDALIYA SPECIAL ENAMELED WIRE CO Ltd
Priority to CN2010205602762U priority Critical patent/CN201812631U/en
Application granted granted Critical
Publication of CN201812631U publication Critical patent/CN201812631U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a cooling device of a dry-type transformer, which is characterized by comprising a fan (1), an air duct (2) and an air cover (3), wherein the air cover (3) is in a trumpet shape, the large end of the air cover (3) is a mounting end connected with the dry-type transformer, and the small end of the air cover (3) is communicated with one end of the air duct (2); and the other end of the air duct (2) is an air outlet communicated with the outside, and the fan (1) is arranged at the air outlet of the air duct (2). In the utility model, the negative pressure can be formed inside the transformer, so that the inside of the transformer and external ambient air form convection to speed up the flow of air so as to achieve the purpose of fast and effectively reducing the temperature of the transformer and ensure that the large-capacity dry-type transformers safely runs in the operation state of full load; and because the indoor hot air is pumped to the outside, the situation that the indoor air temperature fast rises due to continuous temperature accumulation can be avoided, and the cooling effect is further improved.

Description

A kind of dry-type transformer cooling device
Affiliated technical field
The utility model relates to a kind of dry-type transformer cooling device, specifically be a kind of can situation for the high-power transformer oepration at full load under, effectively reduce the dry-type transformer temperature, guarantee the cooling device of its safe operation.
Background technology
Rely on air to flow to be in contact with it naturally when existing dry-type transformer moves and carry out heat exchange, realize cooling purpose.But dry-type transformer is an a kind of transformer that is applicable to indoor (being generally power distribution room), and room air is difficult to form convection current, hot-air accumulate in easily dry-type transformer around, radiating effect is poor; And because the obstruct of body of wall all around, indoor air only relies on the nature circulation to be difficult to dispel the heat to outdoor, yet along with the dry-type transformer increase of running time, the indoor air temperature that carries out heat exchange with it constantly raises, be difficult to guarantee the cooling effect of dry-type transformer, influence the normal operation of dry-type transformer; Especially for big capacity dry-type transformer (as 1250KVA or more than), under the situation of its oepration at full load, dry-type transformer is owing to there being reasons such as copper loss, iron loss, self-heating, temperature is higher, it is little himself to carry radiator fan power, does not reach cooling-down effect; When room temperature reached more than 37 ℃, the transformer temperature can reach more than 100 ℃, approached the transformer alarm temperature, brought great safety in production hidden danger to production.
The utility model content
The technical problems to be solved in the utility model provide a kind of can situation for the high-power transformer oepration at full load under, effectively reduce the dry-type transformer temperature, guarantee the cooling device of its safe operation.
The technical problems to be solved in the utility model, can realize by following technical scheme: a kind of dry-type transformer cooling device, it is characterized in that: comprise blower fan 1, air channel 2 and fan housing 3,3 one-tenth of described fan housings are horn-like, its big end is the installation end that is connected with dry-type transformer, small end is communicated with an end in described air channel 2, and the other end in described air channel 2 is and the outdoor air outlet that is communicated with that described blower fan 1 is arranged on the air outlet place in described air channel 2.
When using the cooling device that the utility model provides, the big end of fan housing is connected with dry-type transformer, and the air outlet in air channel is fixed by the body of wall of power distribution room, and the air outlet in air channel is communicated with outdoor.When dry-type transformer is started working, start the blower fan of this cooling device, indoor air enters into the inside through dry-type transformer case, and after carrying out heat exchange with the coil of dry-type transformer, be extracted into outdoorly by blower fan, the inner negative pressure that forms of transformer this moment forces that transformer is inner to form convection current with ambient air outside, accelerate flowing of air, reach the purpose of cooling; And because blower fan constantly is extracted into indoor hot-air outdoorly, the constantly accumulation and raising fast of the temperature of also having avoided room air further improves the effect of cooling.
On the basis of the above, air channel 2 described in the utility model is bent into L shaped.After installed in L shaped air channel, its air outlet was positioned on the sidewall of power distribution room, can prevent that rainwater or dust from falling into infringement blower fan and dry-type transformer in the air channel.
On the basis of the above, the big end of fan housing 3 described in the utility model is provided with the surrounding edge 31 that can be socketed on the dry-type transformer case; During installation, directly the surrounding edge of the big end of fan housing is enclosed within on the shell of dry-type transformer and gets final product, simple and convenient.
On the basis of the above, blower fan 1 described in the utility model be positioned at described air channel 2 air opening end end face with the position; The outer wall in air channel can block blower fan, plays the effect of protection.
Compared with prior art, the utility model can make the inner negative pressure that forms of transformer, force the inner and ambient air outside formation convection current of transformer, accelerate flowing of air, reach the purpose that fast, effectively reduces the transformer temperature, guarantee that big capacity dry-type transformer is in the safe operation of oepration at full load situation; And because blower fan constantly is extracted into indoor hot-air outdoorly, the constantly accumulation and raising fast of the temperature of also having avoided room air further improves the effect of cooling.
Description of drawings
Fig. 1 is a user mode schematic diagram of the present utility model.
Embodiment
As shown in Figure 1 be embodiment of the present utility model, it has comprised blower fan 1, air channel 2 and fan housing 3, wherein air channel 2 is bent into L shaped, 3 one-tenth of fan housings are horn-like, the big end of fan housing 3 is the installation end that is connected with dry-type transformer, and this installation end is provided with the surrounding edge 31 that can be socketed on the dry-type transformer case, and the small end of fan housing 3 is communicated with an end in air channel 2, the other end in air channel 2 is and the outdoor air outlet that is communicated with, blower fan 1 be positioned at air channel 2 air opening end end face with the position.
When using the cooling device that the utility model provides, the surrounding edge of the big end of fan housing is enclosed within on the shell of dry-type transformer 4, and the air outlet in air channel is fixed on the sidewall 5 of power distribution room, and guarantee that the air outlet in air channel is communicated with outdoor.When dry-type transformer is started working, start the blower fan of this cooling device, indoor air enters into the inside through dry-type transformer case, and after carrying out heat exchange with the coil of dry-type transformer, be extracted into outdoorly by blower fan, the inner negative pressure that forms of transformer this moment forces that transformer is inner to form convection current with ambient air outside, accelerate flowing of air, reach the purpose of cooling; And because blower fan constantly is extracted into indoor hot-air outdoorly, the constantly accumulation and raising fast of the temperature of also having avoided room air further improves the effect of cooling.

Claims (4)

1. dry-type transformer cooling device, it is characterized in that: comprise blower fan (1), air channel (2) and fan housing (3), it is horn-like that described fan housing (3) becomes, its big end is the installation end that is connected with dry-type transformer, small end is communicated with an end of described air channel (2), the other end in described air channel (2) is and the outdoor air outlet that is communicated with that described blower fan (1) is arranged on the air outlet place in described air channel (2).
2. cooling device according to claim 1 is characterized in that: described air channel (2) are bent into L shaped.
3. cooling device according to claim 2 is characterized in that: the big end of described fan housing (3) is provided with the surrounding edge that can be socketed on the dry-type transformer case.
4. cooling device according to claim 3 is characterized in that: described blower fan (1) be positioned at described air channel (2) air opening end end face with the position.
CN2010205602762U 2010-10-13 2010-10-13 Cooling device of dry-type transformer Expired - Lifetime CN201812631U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205602762U CN201812631U (en) 2010-10-13 2010-10-13 Cooling device of dry-type transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205602762U CN201812631U (en) 2010-10-13 2010-10-13 Cooling device of dry-type transformer

Publications (1)

Publication Number Publication Date
CN201812631U true CN201812631U (en) 2011-04-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205602762U Expired - Lifetime CN201812631U (en) 2010-10-13 2010-10-13 Cooling device of dry-type transformer

Country Status (1)

Country Link
CN (1) CN201812631U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105161253A (en) * 2015-10-23 2015-12-16 广州供电局有限公司 Air-cooling dry type air-core reactor structure
CN105977852A (en) * 2016-06-17 2016-09-28 凯地(广东)电业设备有限公司 Landscape buried box-type substation with ventilation cooling system
WO2021110255A1 (en) * 2019-12-04 2021-06-10 Siemens Aktiengesellschaft Cooling apparatus for an electric choke

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105161253A (en) * 2015-10-23 2015-12-16 广州供电局有限公司 Air-cooling dry type air-core reactor structure
CN105161253B (en) * 2015-10-23 2018-03-27 广州供电局有限公司 Wind-cooling type dry-type air-core reactor structure
CN105977852A (en) * 2016-06-17 2016-09-28 凯地(广东)电业设备有限公司 Landscape buried box-type substation with ventilation cooling system
WO2021110255A1 (en) * 2019-12-04 2021-06-10 Siemens Aktiengesellschaft Cooling apparatus for an electric choke

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Granted publication date: 20110427