CN211405425U - Be used for secret cable pit cooling system - Google Patents

Abstract

The utility model relates to a heat dissipation system for an underground cable trench. The cable trench is provided with several air inlets and several air outlets along its extending direction, the air inlets are provided with air inlet devices, and the air inlet devices pass through pipes and along the edge The air outlet duct extending along the extension direction of the cable trench is connected, and the air outlet duct is fixedly connected with a number of disk-shaped cable supports that are coaxial with the air outlet and arranged along the extension direction of the cable trench, and a plurality of phase cables are opened on the cable support. Corresponding to the perforations for the cables to pass through, a plurality of through holes facing the cables are opened on the circumferential surface of the air outlet pipe. The utility model realizes the air flow in the cable trench through the arrangement of the air inlet and the air outlet, which is convenient to reduce the temperature in the cable trench, takes away a large amount of heat generated by the cable in time, reduces the probability of accidents, and prolongs the service life of the cable; The setting of the air duct and the cable support is convenient to take out the air outlet duct and the cable support directly from the cable trench, so as to realize the convenient maintenance of the cable.

Description

A cooling system for underground cable trenches

technical field

The utility model relates to the field of ventilation, in particular to the technical field of ventilation for underground cables, in particular to a heat dissipation system for underground cable trenches.

Background technique

When the equipment unit is running at full load, the power generated by the generator will be sent from the outlet small room to the main transformer high voltage. Since the power generation process is a long-term operation, continuous heat is generated during the transmission process, especially in the centralized placement of the cable body. and the middle end of the cable will gradually accumulate heat. If the ventilation conditions in the cable trench are not good, the heat cannot be exchanged with the outside world through air convection, which increases the possibility of the cable catching fire, and the long-term high temperature of the cable reduces the service life of the cable.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides a heat dissipation system for underground cable trenches, which forms ventilation for the underground cable trenches, takes away a large amount of heat generated by the cables in time, reduces the probability of accidents, and prolongs the service life of the cables.

The utility model is realized by the following technical solutions: a heat dissipation system for an underground cable trench, the cable trench is provided with several air inlets and several air outlets along its extending direction, the air inlet is installed with an air inlet device, the The air inlet device is communicated with the air outlet pipe extending along the extension direction of the cable trench through the pipe, and the air outlet pipe is fixedly connected with a number of disk-shaped cable supports which are coaxial with the air outlet pipe and arranged along the extension direction of the cable trench. The support is provided with a plurality of corresponding through holes for the cables to pass through, and a plurality of through holes facing the cables are provided on the circumferential surface of the air outlet pipe.

The utility model realizes the air flow in the cable trench through the arrangement of the air inlet and the air outlet, which is convenient to reduce the temperature in the cable trench, takes away a large amount of heat generated by the cable in time, reduces the probability of accidents, and prolongs the service life of the cable; The setting of the air duct and the cable support is convenient to blow the cooling air directly to the cable, so as to directly take away the heat generated by the cable. Realize the convenient maintenance of the cable.

Preferably, the air inlets and the air outlets are arranged alternately. This preferred solution, through the arrangement of alternate phases, facilitates the smooth flow of airflow in the cable trench, makes the airflow circulate smoothly, ensures that the heat generated by the cable is taken away in time, avoids the arrangement of two consecutive air outlets, and makes the space between the two air outlets The poor heat removal effect of the cable occurs.

Preferably, an exhaust fan is installed at the air outlet. In this preferred solution, through the setting of the exhaust fan, the discharge speed of the air from the cable trench can be adjusted and controlled, so as to ensure the normal discharge of the air.

Preferably, a rubber barrel is installed in the through hole, and the cable passes out of the rubber barrel. This preferred solution reduces the frictional force between the cable and the cable support, reduces the abrasion of the cable, and improves the service life of the cable through the arrangement of the rubber cylinder.

Preferably, a fence is provided outside the air inlet and the air outlet. In this preferred solution, the fence is set to give the staff a warning, and some small animals are also placed into the cable trench through the air inlet or outlet to cause damage and affect the normal use of the cable.

Preferably, a cone-shaped awning is also fixed on the top of the fence. In this preferred solution, through the setting of the awning, it is convenient to block the rain and ensure the normal use of the cable.

The perforations are arranged along the circumferential direction of the cable support, and the cable support is detachably connected with marking nameplates corresponding to the perforations. In this preferred solution, through the setting of the nameplate, the cables are classified and marked, which is convenient for the classification and placement of the cables, thereby facilitating the subsequent maintenance of the cables.

The beneficial effects of the utility model are: through the arrangement of the air inlet and the air outlet, the air flow in the cable trench can be realized, the temperature in the cable trench can be easily reduced, a large amount of heat generated by the cable can be taken away in time, the probability of accidents can be reduced, and the cable can be extended. Service life; through the setting of the air outlet duct and the cable support, it is convenient to blow the cooling air directly to the cable, so as to directly take away the heat generated by the cable. It can be taken out in the trench to realize the convenient maintenance of the cable; through the arrangement of the air inlet and outlet, the heat generated by the cable can be taken away in time; through the setting of the exhaust fan, the control air can be adjusted from the cable trench. The internal discharge speed ensures the normal discharge of air.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the partial view of A direction in Fig. 1;

Shown in the picture:

1. Cable trench, 2. Air outlet duct, 3. Canopy, 4. Cable support, 5. Perforation, 6. Fence.

Detailed ways

In order to clearly illustrate the technical features of the solution, the solution will be described below through specific implementations.

Referring to the accompanying drawings 1-2, the utility model is a cooling system for an underground cable trench 1, characterized in that: the cable trench 1 is provided with several air inlets and several air outlets along its extending direction, and the air inlets are installed with Air inlet device, the air inlet device includes a blower, an exhaust fan is installed at the air outlet, the air inlet and the air outlet are arranged alternately, and a fence 6 is provided outside the air inlet and the air outlet, and the fence 6 is on top A conical awning 3 is also fixedly connected.

The blower is communicated with the air outlet duct 2 extending along the extension direction of the cable trench 1 through the pipe. The air outlet duct 2 is fixedly connected with a number of disk-shaped cable supports 4 that are coaxial with it and arranged along the extension direction of the cable trench 1. , the cable support 4 is provided with a number of perforations 5 along the circumferential direction of the cable support 4, the perforations 5 pass through the cable support 4 along the extension direction of the cable trench 1, and a rubber cylinder is installed in the perforation 5 , the cable passes through the rubber cylinder, the cable support 4 is detachably connected with a logo nameplate corresponding to the perforation 5, and a number of through holes facing the cable are opened on the circumferential surface of the air outlet pipe. The holes are arranged along the extending direction of the air outlet duct 2 .

When the utility model is in use, the blower is turned on, and the air is blown into the air outlet duct, the air in the air outlet duct is discharged to the cable through the through hole, and the heat generated by the cable is taken away, and finally the air is returned to the air through the exhaust fan. into the atmosphere.

Of course, the above description is not limited to the above examples, and the undescribed technical features of the present invention can be realized by or using the existing technology, and will not be repeated here; the above embodiments and accompanying drawings are only used to illustrate the technology of the present invention. The solution is not intended to limit the present utility model. The present utility model is described in detail with reference to the preferred embodiments. Those of ordinary skill in the art should understand that the Changes, modifications, additions or substitutions do not depart from the purpose of the present invention, and should also belong to the protection scope of the claims of the present invention.

Claims (7)

1. The utility model provides a be used for secret cable pit cooling system which characterized in that: a plurality of air intakes and a plurality of air outlet have been seted up along its extending direction in cable pit (1), air inlet unit is installed to the air intake, air inlet unit passes through the pipeline and communicates along air-out pipeline (2) that cable pit (1) extends along the extending direction, the rigid coupling has a plurality of disc cable support (4) of arranging rather than coaxial line and along cable pit (1) extending direction on air-out pipeline (2), set up perforation (5) that a plurality of corresponding and power supply cable passed on cable support (4), set up a plurality of through-holes towards the cable on the periphery of play tuber pipe.

2. The heat dissipation system for an underground cable trench of claim 1, wherein: the air inlets and the air outlets are arranged at intervals.

3. The heat dissipation system for an underground cable trench of claim 1, wherein: an exhaust fan is installed at the air outlet.

4. The heat dissipation system for an underground cable trench of claim 1, wherein: a rubber cylinder is installed in the through hole (5), and the cable penetrates out of the rubber cylinder.

5. The heat dissipation system for an underground cable trench of claim 1, wherein: and fences (6) are arranged outside the air inlet and the air outlet.

6. The heat dissipation system for an underground cable trench of claim 5, wherein: a conical rain shelter (3) is also fixedly connected to the top of the fence (6).

7. The heat dissipation system for an underground cable trench of claim 1, wherein: perforation (5) are arranged along the circumferencial direction of cable support (4), can dismantle on cable support (4) to be connected with the sign data plate that corresponds respectively with perforation (5).

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