CN214755431U

CN214755431U - Cable trench

Info

Publication number: CN214755431U
Application number: CN202120529375.2U
Authority: CN
Inventors: 林义国; 王亚林; 李明飞; 廖克勤
Original assignee: Hunan Hubian Power Technology Co ltd
Current assignee: Hunan Hubian Power Technology Co ltd
Priority date: 2021-03-12
Filing date: 2021-03-12
Publication date: 2021-11-16
Anticipated expiration: 2031-03-12

Abstract

The utility model provides a cable pit belongs to electrical facilities technical field. The cable trench comprises a cover plate and a cable trench, wherein L-shaped steps are arranged above two side walls of the cable trench, the cover plate covers the L-shaped steps, and a sealing gasket is arranged between the cover plate and the L-shaped steps; the cable support is arranged on the side wall of the cable trench and comprises a connecting plate and a supporting plate, the connecting plate and the supporting plate are fixedly arranged on the side wall of the cable trench, the supporting plate is connected with the connecting plate, and the connecting plate inclines towards the side wall; a drain pipe is arranged on one side of the bottom plate of the cable trench, a channel connected with the drain pipe is arranged on the bottom plate, and the height of the bottom plate is inclined towards one side of the drain pipe; the utility model arranges the sealing gasket between the cover plate and the L-shaped step, which can prevent rainwater from flowing into the cable trench from the cover plate, and arranges the water guide through hole on the cover plate to promote drainage and avoid rainwater deposition; and a drain pipe is arranged on one side of the bottom plate, so that rainwater is discharged from the drain pipe, and is prevented from accumulating in the cable trench.

Description

Cable trench

Technical Field

The utility model belongs to the technical field of electrical equipment, concretely relates to cable pit.

Background

With the continuous deepening of the transformation and construction of the power grid in China, the power cable is widely applied. The power cable can effectively reduce the workload of operation and maintenance, greatly improve the reliability of power supply and ensure the operation safety of national power grids. At present, a cable trench laying scheme is widely adopted in a transformer substation, and the cable trench laying method has the advantages of simple building structure, few additional supporting facilities such as technical defense and the like, low engineering investment, high economical efficiency and the like. Whether the transformer substation can supply power safely, stably and reliably is very important for the development of the whole society and the life of people. The stable operation of equipment in the transformer substation determines that the transformer substation can supply power safely and stably. The following problems exist in the actual operation process: the leakage water flows into the cable trench along the side wall, threatens the power supply circuit in the cable trench and causes irreparable damage to the tunnel structure; the humidity in the cable trench is high, the temperature is high, moisture in the cable trench cannot be discharged in time, and the normal operation of a cable pipeline in the cable trench is influenced; the cable duct is short-circuited by moisture or the temperature of the cable joint or the cable itself rises to cause a fire phenomenon.

If the transformer substation is located in a low-lying area or an area with high water content in soil, water in the soil can permeate into a cable trench of the transformer substation, rainwater flows backward due to the low-lying area, accumulated water is easily formed in the trench, the cable is soaked in water for a long time, the cable is easily subjected to a water branch effect, the cable insulation fault is caused, a power grid accident is caused, and the operation safety of a power grid is seriously influenced. In addition, the existing drainage dehumidification cable trench cannot realize the automation of drainage dehumidification.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a cable pit to solve the waterproof, relatively poor technical problem of drainage performance of current cable pit.

In order to achieve the above object, the technical solution of the present invention is:

a cable duct comprises a cover plate and a cable duct, wherein L-shaped steps are arranged above two side walls of the cable duct, the cover plate covers the L-shaped steps, and a sealing gasket is arranged between the cover plate and the L-shaped steps;

the cable support is arranged on the side wall of the cable trench and comprises a connecting plate and a supporting plate, the connecting plate and the supporting plate are fixedly arranged on the side wall of the cable trench, the supporting plate is connected with the connecting plate, and the connecting plate inclines towards the side wall;

a drain pipe is arranged on one side of the bottom plate of the cable trench, a channel connected with the drain pipe is arranged on the bottom plate, and the height of the bottom plate is inclined towards one side of the drain pipe;

still be equipped with detecting system in the cable pit, detecting system includes temperature sensor, humidity transducer and controller, temperature sensor and humidity transducer all are connected with the controller.

Preferably, a plurality of water guide through holes which are transversely arranged are formed in the cover plate.

Preferably, the gasket is L-shaped.

Preferably, the sealing gasket is a rubber gasket.

Preferably, the height of the water guide through hole is not lower than that of the sealing gasket.

Preferably, still install dehydrating unit and heat sink in the cable pit, dehydrating unit and heat sink all are connected with the controller.

Preferably, the temperature sensor is used for detecting whether the temperature in the cable trench exceeds a preset value or not, when the temperature in the cable trench exceeds the preset value, the temperature sensor sends a signal to the controller, and the controller controls the cooling device to be started; the humidity sensor detects whether the humidity in the cable trench exceeds a preset value or not, the signal is sent to the controller, and the controller controls the dehumidification device to be started.

Preferably, the cooling device is a spray cooling device.

The utility model has the advantages that:

1. the utility model discloses set up sealed the pad between apron and L shape step, can prevent that the rainwater from flowing into inside the cable pit on the apron to be equipped with the water guide through-hole on the apron, promote the drainage, avoid the rainwater siltation.

2. The utility model discloses bottom plate one side at the cable pit is equipped with the drain pipe, makes the rainwater discharge from the drain pipe, avoids the siltation in the cable pit, damages the cable.

3. The utility model discloses still be equipped with detecting system in the cable pit, humidity and temperature in the real-time supervision cable pit improve the security.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic side view of the present invention.

Fig. 3 is a schematic view of the internal structure of the cable trench.

Fig. 4 is a schematic structural view of the cover plate.

In the figure: 1-cover plate; 2-cable trench; 21-L-shaped step 21; 3-a sealing gasket; 4-a cable holder; 41-connecting plate; 42-a support plate; 5, a drain pipe; 51-channel; 6-temperature sensor; 7-a humidity sensor; 8-a controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Referring to fig. 1 to 4, a cable trench, including apron 1,

cable trench

2, 2 both sides wall tops of cable trench are equipped with L shape step 21, and apron 1 lid closes on L shape step 21, is provided with sealed pad 3 between apron 1 and L shape step 21, can prevent that the rainwater from flowing into the cable trench inside from the gap between apron 1 and the L shape step 21, damages the cable. Preferably, the gasket 3 is L-shaped. Preferably, the sealing gasket 3 is a rubber gasket. The shape of the sealing gasket 3 is similar to that of the L-shaped step, so that the sealing gasket is tightly attached to the L-shaped step, and during construction, the sealing gasket is placed on the L-shaped step and then the cover plate is covered.

The cable support 4 is arranged on the side wall of the cable trench, the cable support 4 comprises a connecting plate 41 and a supporting plate 42, the connecting plate 41 and the supporting plate 42 are fixedly installed on the side wall of the cable trench, the supporting plate 42 is connected with the connecting plate 41 and used for supporting the connecting plate 41, and the connecting plate 41 inclines towards the side wall direction, so that the cable is prevented from falling;

a drain pipe 5 is arranged on one side of the bottom plate of the cable trench, a channel 51 connected with the drain pipe 5 is arranged on the bottom plate, the height of the bottom plate is inclined towards one side of the drain pipe 5, so that water on the bottom plate can quickly enter the drain pipe 5 and can flow out of the drain pipe in a centralized manner, and water accumulation in the cable trench is avoided;

still be equipped with detecting system in the cable pit, detecting system includes temperature sensor 6, humidity transducer 7 and controller 8, temperature sensor and humidity transducer all are connected with the controller. Temperature sensor, humidity transducer real-time supervision cable pit in humidity and the temperature, improve the security.

Furthermore, a plurality of water guide through holes 11 which are transversely arranged are arranged in the cover plate 1. Preferably, the height of the water guiding through hole 11 is not lower than the height of the gasket 3. The arrangement of the water guide through holes can promote water drainage and avoid rainwater siltation.

Further, still install dehydrating unit and heat sink in the cable pit, dehydrating unit and heat sink all are connected with the controller. Preferably, the temperature sensor 6 is used for detecting whether the temperature inside the cable trench exceeds a preset value, when the temperature inside the cable trench exceeds the preset value, the signal is sent to the controller 8, and the controller 8 controls the cooling device to be started; the humidity sensor 7 detects whether the humidity in the cable trench exceeds a preset value or not, the signal is sent to the controller 8, and the controller 8 controls the dehumidification device to be started. Preferably, the cooling device is a spray cooling device. The present invention relates to the prior art of circuits and electronic components and modules, and can be implemented by those skilled in the art without redundancy, and the present invention also does not relate to improvements to the internal structure and method.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A cable trench is characterized by comprising a cover plate and a cable trench, wherein L-shaped steps are arranged above two side walls of the cable trench, the cover plate covers the L-shaped steps, and a sealing gasket is arranged between the cover plate and the L-shaped steps;

2. The cable trench of claim 1, wherein the cover plate is provided with a plurality of water guiding through holes arranged transversely therein.

3. The cable trench of claim 2, wherein the gasket is L-shaped.

4. The cable trench of claim 3, wherein the gasket is a rubber gasket.

5. The cable trench according to any one of claims 2 to 4, wherein the height of the water guiding through hole is not lower than the height of the gasket.

6. The cable trench of claim 5, wherein a dehumidifying device and a cooling device are further installed in the cable trench, and both the dehumidifying device and the cooling device are connected to the controller.

7. The cable trench according to claim 6, wherein the temperature sensor is used for detecting whether the temperature inside the cable trench exceeds a preset value or not, and when the temperature inside the cable trench exceeds the preset value, the temperature sensor sends a signal to the controller, and the controller controls the cooling device to be started; the humidity sensor detects whether the humidity in the cable trench exceeds a preset value or not, the signal is sent to the controller, and the controller controls the dehumidification device to be started.

8. The cable trench of claim 6, wherein the temperature reduction device is a spray temperature reduction device.