JPH08148344A - Radiator for stationary induction machine - Google Patents

Abstract

PURPOSE: To obtain a radiator for stationary induction machine in which noise is suppressed by reducing vibration and noise of the radiation panel in a panel type radiator. CONSTITUTION: A plurality of radiation panels 2 are arranged at a predetermined interval while being coupled, at the upper and lower parts thereof, with a header 3 communicating the upper and lower parts of a tank. Insulating cooling medium in the tank is circulated between the tank and the radiation panel thus cooling the body of a stationary induction machine. In such radiator 1, the radiation panels 2 are supported by bands of resilient body 5 surrounding the radiation panels 2 thus damping vibration of the radiation panels 2 by means of the resilient body 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel radiator device for stationary induction equipment such as transformers and reactors.

[0002]

2. Description of the Related Art Generally, in static induction equipment such as transformers and reactors, the contents of the iron core and windings are housed inside a tank (container) together with an insulating cooling medium (insulating oil, insulating gas, etc.). The heat generated in the main body of the contents such as wires is transferred to the insulating cooling medium, and the insulating cooling medium is circulated between the tank and the radiator provided outside the tank by convection cooling or forced cooling, and the heat is released from the radiator to the outside air. It dissipates heat to cool the contents.

In a small transformer, heat is dissipated through a pleated pleated outside the tank side plate or a corrugated heat sink welded to the outer surface of the tank. In the case of a transformer of about 1000 kVA or more, a panel type radiator in which two steel plates are seam welded to expand the inside and then welded to a header is used. For a transformer of about 10,000 kVA or more, a pipe radiator in which dozens of drawn steel pipes having a round or circular cross section are welded to upper and lower box-shaped headers is used. Tens of thousands kV
For transformers of about A or higher, install a large number of erotic fin tubes with fins around the pipes, or U-fin tubes with spiral wire coils around the pipes between the upper and lower headers, and attach a blower to the front. Place it
A unit cooler with an oil pump is used.

A conventional panel-type radiator of a static induction device is constructed as shown in FIG. In FIG.
The radiator 1 is composed of a radiator panel 2, upper and lower headers 3 and fixing steel plates 4. A plurality of radiator panels 2 are arranged side by side at a predetermined interval, and the upper and lower portions of the radiator panel 2 are respectively headers. 3, an insulating cooling medium such as insulating oil flows from the upper part of the tank to the lower header 3, and then flows from the upper header 3 to the inside of each heat dissipation panel 2 to collect in the lower header 3 and It is configured to return from the header 3 to the inside of the tank to cool the content main body. The periphery of the side surface of the radiator panel 2 of the radiator 1 is fixed by a welded steel plate 4. In this case, the heat radiation panel 2 fixed by the iron plate 4 attenuates large vibrations transmitted from the tank, but does not block small vibrations and becomes a secondary sound source of noise.

[0005]

However, in such a structure, although the steel plate can suppress the large vibration of the heat dissipation panel, it cannot suppress even the small vibrations, and the heat dissipation device itself becomes a secondary sound source, which causes noise. Will occur. Therefore, there is a problem that the noise reduction is insufficient.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a heat dissipation device with less noise by reducing vibration and noise generation of the heat dissipation panel of the panel type radiator. .

[0007]

Means for Solving the Problems In the present invention, a means for solving the above-mentioned problems is to arrange a plurality of heat radiating panels side by side at a predetermined interval, and connect the upper and lower parts of the heat radiating panels to a header respectively. A radiator for communicating the header to the upper and lower parts of a tank that houses the main body of the stationary induction device, cooling the heated insulating cooling medium in the tank, and circulating the cooling medium to cool the main body of the contents. In the above, the entire circumference of the heat dissipation panels arranged side by side is surrounded by an elastic body in a strip shape, and both side ends of each heat dissipation panel are
The elastic body is fitted into a groove portion to support the entire heat dissipation panel and suppress vibration of the heat dissipation panel.

[0008]

As described above, according to the present invention, since the entire heat dissipation panel is surrounded by the elastic body in a band shape to integrally support all the heat dissipation panels, the vibration of each heat dissipation panel is suppressed by the elastic body and the noise is reduced. It is possible to prevent the radiator from becoming a secondary sound source, and to reduce noise.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings. Since the radiator 1 itself of the present invention is the same as that of FIG. 4, the same portions or corresponding portions as those in FIG. 4 are denoted by the same reference numerals and the description thereof will be omitted.

FIG. 1 is a perspective view of an embodiment of a heat dissipation device for a static induction device of the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is an embodiment of a supporting elastic body used in the present invention. FIG.

The radiator 1 is a radiator panel 2,
The upper and lower headers 3 and the fixing steel plate 4 are arranged, and a plurality of heat radiating panels 2 are arranged side by side at a predetermined interval. The upper and lower parts of the heat radiating panel 2 are connected to the header 3 respectively, and the header 3 is Insulating cooling medium such as insulating oil in the tank communicates with the upper and lower parts of the tank accommodating the main body of the stationary induction device, and flows from the upper part of the tank to the lower header 3, and from the upper header 3 to each heat dissipation panel 2 It is configured so as to be dispersed and flow inside and collect in the lower header 3, and then return to the inside of the tank from the lower header 3 to cool the content main body.

In the present invention, the radiator 1 is mounted on the radiator 1 to form a radiator.

As shown in FIG. 3, the supporting elastic body 5 has a groove portion 5a into which both side ends of each heat radiating panel 2 are fitted, and a holding portion 5b for pressing side surfaces on both sides of the heat radiating panel 2 arranged in parallel. And is integrally formed. Then, when mounting this, as shown in FIG. 2, both side ends of each radiator panel 2 are fitted into the groove portions 5a from the upper side and the lower side of the radiator 1, and they are adjusted to appropriate positions, and are placed at two positions above and below. Surround the entire heat dissipation panel in a strip shape and support it with the whole band clamped.

The groove width of the groove portion 5a of the supporting elastic body 5 is made slightly narrower than the thickness of the heat radiating panel to support the end portion of the heat radiating panel by the elasticity of the elastic body, or is adhered assuming that it is almost the same as the thickness of the heat radiating panel. Fix with adhesive.

As the material of the supporting elastic body 5, an elastic material such as a plastic material or a vibration proof rubber is used.

As described above, since the whole heat dissipation panel is surrounded by the elastic body in a band shape, and both side ends of each heat dissipation panel are fitted into and supported by the grooves of the elastic body, the vibration of the heat dissipation panel is caused by this elastic body. It is suppressed and can be prevented from becoming the secondary sound source of the radiator.

[0017]

As described above, in the heat dissipation device of the static induction device according to the present invention, the entire circumference of the heat dissipation panel is surrounded by the elastic material such as the plastic material or the vibration-proof rubber so as to be supported. The vibration of the panel is suppressed, the radiator is prevented from becoming a secondary sound source of noise, the vibration and noise of the entire static induction device are reduced, and a low noise static induction device can be provided.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a plan sectional view of FIG.

FIG. 3 is a plan view of a supporting elastic body of the present invention.

FIG. 4 is a perspective view showing an example of a radiator of a conventional static induction device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Radiator 2 ... Radiation panel 3 ... Header 4 ... Steel plate 5 ... Elastic body for support

Claims (1)

[Claims] 1. A plurality of heat radiating panels are arranged side by side at a predetermined interval, the upper and lower parts of the heat radiating panels are respectively connected to headers, and the headers are respectively placed on the upper and lower parts of a tank for accommodating the main body of the contents of the stationary induction device. In a heat dissipation device that communicates and cools the heated insulating cooling medium in the tank and circulates it to cool the main body of the contents, the entire circumference of the heat dissipation panels arranged side by side is surrounded by a band with an elastic body. A heat dissipation device for a static induction device, characterized in that both ends of each heat dissipation panel are fitted into grooves provided in the elastic body to support the entire heat dissipation panel and suppress vibration of the heat dissipation panel.