LU505494B1 - Dehumidification and drainage device for cable trench - Google Patents

Dehumidification and drainage device for cable trench Download PDF

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Publication number
LU505494B1
LU505494B1 LU505494A LU505494A LU505494B1 LU 505494 B1 LU505494 B1 LU 505494B1 LU 505494 A LU505494 A LU 505494A LU 505494 A LU505494 A LU 505494A LU 505494 B1 LU505494 B1 LU 505494B1
Authority
LU
Luxembourg
Prior art keywords
dehumidification
trench
drainage device
trench body
drainage
Prior art date
Application number
LU505494A
Other languages
French (fr)
Inventor
Jianmeng Zhang
Shuwen Leng
Runze Li
Hongdong Wang
Zhanshun Dou
Yingyan Ma
Xingjian Liu
Xingxing Jiang
Maolin Zhang
Xunpeng Yin
Junli Liu
Original Assignee
Huaneng Laiwu Power Generation 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 Huaneng Laiwu Power Generation Co Ltd filed Critical Huaneng Laiwu Power Generation Co Ltd
Priority to LU505494A priority Critical patent/LU505494B1/en
Application granted granted Critical
Publication of LU505494B1 publication Critical patent/LU505494B1/en

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00Installations of electric cables or lines in or on the ground or water
    • H02G9/06Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F3/00Sewer pipe-line systems
    • E03F3/04Pipes or fittings specially adapted to sewers
    • E03F3/046Open sewage channels

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  • Drying Of Gases (AREA)

Abstract

The present invention provides a dehumidification and drainage device for a cable trench, falling within the technical field of cable trench construction. The dehumidification and drainage device for a cable trench includes a mounting unit, a drainage unit, and a dehumidification unit. According to the present invention, the accumulated water in the trench body can be quickly discharged, and the external dry air is sucked and discharged into the trench body, which makes the heat dissipation and dehumidification effect better.

Description

DEHUMIDIFICATION AND DRAINAGE DEVICE FOR CABLE TRENCH LU505494
TECHNICAL FIELD
The present invention relates to the technical field of cable trench construction, and in particular to a dehumidification and drainage device for a cable trench.
BACKGROUND
In recent years, with the continuous deepening of transformation and construction of our national power grid, power cables have been widely used. The use of power cables can not only effectively reduce the workload of operation and maintenance, but also greatly improve the reliability of power supply and ensure the security of State Grid operation. At present, the cable trench laying scheme is widely used in substations, which has the advantages of simple building structure, few additional supporting facilities such as technical defense, low engineering investment and high economy.
However, since the power cable runs in the underground for a long time, its operating environment has a high humidity, especially in rainy weather, which cannot quickly and effectively discharge the rainwater in the cable trench and is easy to cause water accumulation, so that the outdoor equipment of the booster station is easy to get wet, which further leads to insulation reduction or DC grounding, affecting the safe and reliable operation of the equipment.
SUMMARY
An object of the present invention is to summarize some aspects of examples of the present invention and briefly introduce some preferred examples. Some simplifications or omissions may be made in this section as well as in the abstract and title of the specification of the present application to avoid obscuring the purpose of this section, abstract and title of the specification, and such simplifications or omissions may not be used to limit the scope of the present invention.
In view of the problem that the existing cable trench has poor dehumidification and drainage effect, the present invention is provided.
Accordingly, an object of the present invention is to provide a dehumidification and drainage device for a cable trench.
In order to solve the above technical problem, the present invention provides the following technical solutions. A dehumidification and drainage device for a cable trench includes: a mounting unit, including a trench body, a cover plate arranged at a top of the trench body, a plurality of cable racks arranged on inner walls of front and rear sides of the trench body, and a base platform arranged on an inner bottom wall of the trench body; a drainage unit, including a drainage channel arranged around the base platform, drainage pipes arranged on left and right sides of the drainage channel and at a middle of the base platform, a reciprocating assembh#505494 arranged at an upper part of the trench body, and water scavenging and air diffusing assemblies arranged on left and right sides of the reciprocating assembly; and a dehumidification unit, including side ventilation assemblies arranged on left and right sides of the upper part of the trench body, and middle ventilation assemblies arranged at a middle of the upper part of the trench body.
As a preferred solution of the dehumidification and drainage device for a cable trench of the present invention, the reciprocating assembly includes a ball screw arranged on the upper part of the trench body, screw nuts arranged on left and right sides of the ball screw, a limiting block arranged at a middle of the ball screw, an electric motor arranged outside the trench body for driving the ball screw, and protective covers arranged outside the electric motor, the thread directions on the two sides of the ball screw being opposite, and the middle of the ball screw being arranged as a polished rod.
As a preferred solution of the dehumidification and drainage device for a cable trench of the present invention, the water scavenging and air diffusing assembly includes a moving cylinder arranged at one end of an opposite side of the screw nut, a water scavenging component arranged at a bottom of the moving cylinder, abutment components arranged on front and rear sides of the moving cylinder, and air diffusing components arranged at front and rear sides of the two abutment components, the moving cylinder being arranged on the ball screw.
As a preferred solution of the dehumidification and drainage device for a cable trench of the present invention, the water scavenging component includes a sleeve arranged at the bottom of the moving cylinder, a telescopic rod arranged in the sleeve, a water scavenging plate arranged at a bottom of the telescopic rod, and a water scavenging brush arranged at a bottom of the water scavenging plate, left and right sides of the water scavenging plate are arranged in an arc shape.
As a preferred solution of the dehumidification and drainage device for a cable trench of the present invention, the abutment component includes cross brackets arranged on the front and rear sides of the moving cylinder, and abutment plates arranged on left and right sides of the cross brackets.
As a preferred solution of the dehumidification and drainage device for a cable trench of the present invention, the air diffusing component includes spur racks arranged at ends of opposite sides of the two cross brackets, gears arranged below the spur racks, rotating rods arranged between the gears and a side wall of the trench body, fan blades arranged on the rotating rods, and mesh covers arranged outside the fan blades.
As a preferred solution of the dehumidification and drainage device for a cable trench of t#é/505494 present invention, the side ventilation assembly includes two side elastic airbags arranged on an inner wall of an end portion of the trench body, side intake pipes and side exhaust pipes arranged on outer walls of the side elastic airbags, side drying cylinders arranged outside the trench body for communicating with the side intake pipes, and side communication pipes arranged on the side drying cylinders.
As a preferred solution of the dehumidification and drainage device for a cable trench of the present invention, the middle ventilation assembly includes four middle elastic airbags arranged on left and right sides of the limiting block, middle intake pipe and middle exhaust pipes arranged on outer walls of the middle elastic airbags, middle drying cylinders arranged outside the trench body for communicating with the middle intake pipes, and middle communication pipes arranged on the middle drying cylinders.
As a preferred solution of the dehumidification and drainage device for a cable trench of the present invention, a plurality of heat dissipation holes are disposed on the protective covers.
As a preferred solution of the dehumidification and drainage device for a cable trench of the present invention, a filter screen is arranged in each of the drainage pipes.
The present invention has the following beneficial effects. The drainage pipes can be connected to the water pump, and in cooperation with the left-right movement of the water scavenging plate, the accumulated water in the trench body can be quickly and effectively discharged. At the same time, during the left-right movement of the abutment plates, the side elastic airbags and the middle elastic airbags are driven to repeatedly expand and retract, so that the outside dry air can be sucked and discharged into the trench body. In addition, the fan blades are rotated by the cooperation of the spur racks and the gears to promote the airflow in the trench body, realize the rapid exchange between the trench body and the outside air, and have a better heat dissipation and dehumidification effect.
BRIEF DESCRIPTION OF THE DRAWINGS
In order to explain the technical solutions in the examples of the present invention or the prior art more clearly, the attached drawings needed in the description of the examples will be briefly introduced below. Obviously, the attached drawings in the following description are only some examples of the present invention, and other drawings can be obtained according to the provided drawings without creative work for those of ordinary skill in the art. In the attached drawings:
FIG. 1 is a schematic diagram of an overall structure according to a dehumidification and drainage device for a cable trench of the present invention;
FIG. 2 is a schematic diagram of an inner structure of a trench body according to th&505494 dehumidification and drainage device for a cable trench of the present invention;
FIG. 3 is a schematic structural diagram of a water scavenging and air diffusing assembly according to the dehumidification and drainage device for a cable trench of the present invention;
FIG. 4 is a schematic structural diagram of a side ventilation assembly according to the dehumidification and drainage device for a cable trench of the present invention; and
FIG. 5 is a schematic structural diagram of a middle ventilation assembly according to the dehumidification and drainage device for a cable trench of the present invention.
DETAILED DESCRIPTION
In order to make the above objects, features and advantages of the present invention more obvious and easy to understand, the specific examples of the present invention will be described in detail with reference to the attached drawings.
In the following description, numerous specific details are set forth to facilitate a thorough understanding of the present invention, but the present invention can be practiced in other ways than those described herein. Those skilled in the art can make similar promotion without violating the connotation of the present invention, so the present invention is not limited by the specific examples disclosed below.
Furthermore, "one example" or "an example" referred to herein refers to specific features, structures or characteristics that can be included in at least one implementation of the present invention. The appearances of "in one example" in different places in the specification do not all refer to the same example, nor is it a separate or selective embodiment mutually exclusive of other examples.
The present invention is described in detail with reference to schematic drawings. In describing examples of the present invention, cross-sectional diagrams illustrating device structures may not be exaggerated in general scale to facilitate explanation, and the schematic diagrams are merely exemplary and are not intended to limit the scope of the present invention.
In addition, the three-dimensional dimensions of length, width and depth should be included in the actual production. Example 1
Referring to FIG. 1, a first example of the present invention provides a dehumidification and drainage device for a cable trench. The device includes a mounting unit 100, including a trench body 101, a cover plate 102 arranged at a top of the trench body 101, a plurality of cable racks 103 arranged on inner walls of front and rear sides of the trench body 101, and a base platform 104 arranged on an inner bottom wall of the trench body 101. Holes are disposed on the cover plate 102, which can remove some moisture in the trench body 101 after the temperatuké/505494 rises after rainy days. The device further includes a drainage unit 200, including a drainage channel 201 arranged around the base platform 104, drainage pipes 202 arranged on left and right sides of the drainage channel 201 and at a middle of the base platform 104, a reciprocating 5 assembly 203 arranged at an upper part of the trench body 101, and water scavenging and air diffusing assemblies 204 arranged on left and right sides of the reciprocating assembly 203. The reciprocating assembly 203 can drive the air diffusing components 204d to move left and right, so that the accumulated water in the trench body 101 can be quickly and effectively introduced into the drainage pipes 202, and the drainage pipes 202 can be connected to a water pump to accelerate drainage. Filter screens 202a is arranged in the drainage pipes 202 for blocking large sundries and preventing from blocking the drainage pipes 202. The device further includes a dehumidification unit 300, including side ventilation assemblies 301 arranged on left and right sides of the upper part of the trench body 101, and middle ventilation assemblies 302 arranged at a middle of the upper part of the trench body 101. Through the repeated extending and retraction of the side ventilation assemblies 301 and the middle ventilation assemblies 302, the external dry air can be sucked and discharged into the trench body 101 for ventilation and dehumidification.
When in use, the drainage pipes 202 can be connected to the water pump, and the reciprocating assembly 203 drives the air diffusing components 204d to move left and right to quickly and effectively discharge the accumulated water in the trench body 101, and at the same time, the air diffusing components 204d move left and right to drive the side ventilation assemblies 301 and the middle ventilation assemblies 302 to repeatedly extend and retract to realize the exchange and dehumidification between the inside of the trench body 101 and the outside air.
Example 2
Referring to FIGS. 1 to 3, a second example of the present invention is different from the first example in that: the reciprocating assembly 203 includes a ball screw 203a arranged on the upper part of the trench body 101, screw nuts 203b arranged on left and right sides of the ball screw 203a, a limiting block 203c arranged at a middle of the ball screw 203a, an electric motor arranged outside the trench body 101 for driving the ball screw 203a, and protective covers 203d arranged outside the electric motor, the thread directions on the two sides of the ball screw 203a being opposite, and the middle of the ball screw 203a being arranged as a polished rod. The ball screw 203a is rotatably connected to the trench body 101, the rear side of the limiting block 203c is fixed to the inner wall of the rear side of the trench body 101 via connecting rods, a plurality of heat dissipation holes 203e are disposed on the protective covers 203d for heat dissipation of the electric motor, and the ball screw 203a is driven to rotate forward or reverse by the electrt&/505494 motor, so that the two screw nuts 203b move towards or away from each other.
The water scavenging and air diffusing assembly 204 includes a moving cylinder 204a arranged at one end of an opposite side of the screw nut 203b, a water scavenging component 204b arranged at a bottom of the moving cylinder 204a, abutment components 204¢ arranged on front and rear sides of the moving cylinder 204a, and air diffusing components 204d arranged at front and rear sides of the two abutment components 204c, the moving cylinder 204a being arranged on the ball screw 203a. An inner cylinder diameter of the moving cylinder 204a is greater than a rod diameter of the ball screw 203a, the two screw nuts 203b move in toward or opposite directions to drive the two moving cylinders 204a and the two abutment components 204c to move in toward or opposite directions synchronously, and the movement of the abutment components 204c causes the corresponding rotation of the air diffusing components 204d.
Furthermore, the water scavenging component 204b includes a sleeve 204b-1 arranged at the bottom of the moving cylinder 204a, a telescopic rod 204b-2 arranged in the sleeve 204b-1, a water scavenging plate 204b-3 arranged at a bottom of the telescopic rod 204b-2, and a water scavenging brush 204b-4 arranged at a bottom of the water scavenging plate 204b-3, left and right sides of the water scavenging plate 204b-3 are arranged in an arc shape. Since the base platform 104 may be uneven, a spring is arranged in the sleeve 204b-1 for connecting to a top of the telescopic rod 204b-2, the telescopic rod 204b-2 can slide up and down in the sleeve 204b-1 by the deformation of the spring to adapt to different positions of the base platform 104, and a plug post is arranged at the top of the water scavenging plate 204b-3 and can be threadedly connected to a lower end of the telescopic rod 204b-2.
Furthermore, the abutment component 204c includes cross brackets 204c-1 arranged on the front and rear sides of the moving cylinder 204a, and abutment plates 204c-2 arranged on left and right sides of the cross brackets 204c-1. The two abutment plates 204c-2 are configured to repeatedly compress the side ventilation assemblies 301 and the middle ventilation assemblies 302.
Furthermore, the air diffusing component 204d includes spur racks 204d-1 arranged at ends of opposite sides of the two cross brackets 204c-1, gears 204d-2 arranged below the spur racks 204d-1, rotating rods 204d-3 arranged between the gears 204d-2 and a side wall of the trench body 101, fan blades 204d-4 arranged on the rotating rods 204d-3, and mesh covers 204d-5 arranged outside the fan blades 204d-4. The rotating rods 204d-3 are rotatably connected to the trench body 101, and a lower part of the spur racks 204d-1 is meshed with the gears 204d-2. The left-right movement of the cross brackets 204c-1 drives the left-right movement of the spur racks
204d-1, thereby driving the gears 204d-2 to rotate in a forward direction or a reverse directioh/505494 so that the rotating rods 204d-3 rotate to drive the fan blades 204d-4 to rotate, to promote the airflow in the trench body 101, realize the rapid exchange between the trench body 101 and the outside air, and have a better heat dissipation and dehumidification effect.
The rest of the structure is the same as that of Example 1.
When in use, the electric motor drives the ball screw to rotate in a forward or reverse rotation, and drives the screw nuts 203b, the moving cylinder 204a, the cross brackets 204c-1, the abutment plates 204c-2 and the spur racks 204d-1 to move synchronously. During the movement of the two abutment plates 204c-2, the side ventilation assemblies 301 and the middle ventilation assemblies 302 are compressed repeatedly for ventilation. During the movement of the spur racks 204d-1, the gears 204d-2 are driven to rotate, so that the fan blades 204d-4 rotate to accelerate the airflow in the trench body 101.
Example 3
Referring to FIGS. 1-5, a third example of the present invention is different from the second example in that: the side ventilation assembly 301 includes two side elastic airbags 301la arranged on an inner wall of an end portion of the trench body 101, side intake pipes 301b and side exhaust pipes 301c arranged on outer walls of the side elastic airbags 301a, side drying cylinders 301d arranged outside the trench body 101 for communicating with the side intake pipes 301b, and side communication pipes arranged on the side drying cylinders 301d. The side drying cylinder 301d is filled with a drying filler, and the side intake pipe 301b, the side exhaust pipe 301c and the side communication pipe are all one-way ventilation pipes. The side communication pipe only allows outside air to enter into the side drying cylinder 301d, one end of the side intake pipe 301b communicates with the inside of the side elastic airbags 301a, the other end extends to the outside of the trench body 101 and communicates with the side drying cylinder 301d, and the side intake pipe 301b only allows outside air to enter into the side elastic airbags 301a. One end of the side exhaust pipe 301c communicates with the inside of the side elastic airbags 301a, the other end extends into the trench body 101, and the side exhaust pipe 301c allows only the air in the side elastic airbags 301a to be exhausted into the trench body 101.
The middle ventilation assembly 302 includes four middle elastic airbags 302a arranged on left and right sides of the limiting block 203c, middle intake pipes 302b and middle exhaust pipes 302c arranged on outer walls of the middle elastic airbags 302a, middle drying cylinders 302d arranged outside the trench body 101 for communicating with the middle intake pipes 302b, and middle communication pipes arranged on the middle drying cylinders 302d. The middle drying cylinders 302d are filled with drying fillers, and the middle intake pipes 302b, the middle exhaust pipes 302c and the middle communication pipes are all one-way ventilation pipes. TH&505494 middle communication pipe only allows outside air to enter into the middle drying cylinder 302d, one end of the middle intake pipe 302b communicates with the inside of the middle elastic airbags 302a, the other end extends to the outside of the trench body 101 and communicates with the middle drying cylinder 302d, and the middle intake pipe 302b only allows outside air to enter into the middle elastic airbags 302a. One end of the middle exhaust pipe 302c communicates with the inside of the middle elastic airbags 302a, the other end extends into the trench body 101, and the middle exhaust pipe 302c allows only the air in the middle elastic airbags 302a to be exhausted into the trench body 101. The rest of the structure is the same as that of Example 2.
When in use, the abutment plates 204c-2 are abutted against the side elastic airbags 301a to compress the side elastic airbags 301a, at this time, the side exhaust pipe 301c discharges the air in the side elastic airbags 301a into the trench body 101. When the abutment plates 204c-2 leaves the side elastic airbags 301a to restore the side elastic airbags 301a from a compressed state to an original state, at this time, the side intake pipe 301b sucks the outside dry air into the side elastic airbags 301a for the next discharge. In a similar way, when the other abutment plate 204c-2 abuts the middle elastic airbags 302a to compress the middle elastic airbags 302a, at this time, the middle exhaust pipe 302c discharges the air in the middle elastic airbags 302a into the trench body 101. When the other abutment plate 204c-2 leaves the middle elastic airbags 302a to restore the middle elastic airbags 302a from a compressed state to an original state, at this time, the middle intake pipe 302b sucks the outside dry air into the middle elastic airbags 302a for the next discharge. Through the repeated extending and retraction by the side elastic airbags 301a and the middle elastic airbags 302a, the outside dry air can be sucked and discharged into the trench body 101 for dehumidification.
It is to be noted that: the above examples are only used to illustrate the technical solutions of the present invention, but not to limit this. Although the present invention has been described in detail with reference to the preferred examples, it is to be understood by those skilled in the art that: the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which are to be included in the scope of the claims of the present invention.

Claims (10)

CLAIMS LU505494
1. À dehumidification and drainage device for a cable trench, comprising: a mounting unit (100), comprising a trench body (101), a cover plate (102) arranged at a top of the trench body (101), a plurality of cable racks (103) arranged on inner walls of front and rear sides of the trench body (101), and a base platform (104) arranged on an inner bottom wall of the trench body (101); a drainage unit (200), comprising a drainage channel (201) arranged around the base platform (104), drainage pipes (202) arranged on left and right sides of the drainage channel (201) and at a middle of the base platform (104), a reciprocating assembly (203) arranged at an upper part of the trench body (101), and water scavenging and air diffusing assemblies (204) arranged on left and right sides of the reciprocating assembly (203); and a dehumidification unit (300), comprising side ventilation assemblies (301) arranged on left and right sides of the upper part of the trench body (101), and middle ventilation assemblies (302) arranged at a middle of the upper part of the trench body (101).
2. The dehumidification and drainage device for a cable trench according to claim 1, wherein the reciprocating assembly (203) comprises a ball screw (203a) arranged on the upper part of the trench body (101), screw nuts (203b) arranged on left and right sides of the ball screw (203a), a limiting block (203c) arranged at a middle of the ball screw (203a), an electric motor arranged outside the trench body (101) for driving the ball screw (203a), and protective covers (203d) arranged outside the electric motor, the thread directions on the two sides of the ball screw (203a) being opposite, and the middle of the ball screw (203a) being arranged as a polished rod.
3. The dehumidification and drainage device for a cable trench according to claim 2, wherein the water scavenging and air diffusing assembly (204) comprises a moving cylinder (204a) arranged at one end of an opposite side of the screw nut (203b), a water scavenging component (204b) arranged at a bottom of the moving cylinder (204a), abutment components (204c) arranged on front and rear sides of the moving cylinder (204a), and air diffusing components (204d) arranged at front and rear sides of the two abutment components (204c), the moving cylinder (204a) being arranged on the ball screw (203a).
4. The dehumidification and drainage device for a cable trench according to claim 3,
wherein the water scavenging component (204b) comprises a sleeve (204b-1) arranged at the 905494 bottom of the moving cylinder (204a), a telescopic rod (204b-2) arranged in the sleeve (204b-1), a water scavenging plate (204b-3) arranged at a bottom of the telescopic rod (204b-2), and a water scavenging brush (204b-4) arranged at a bottom of the water scavenging plate (204b-3), left and right sides of the water scavenging plate (204b-3) are arranged in an arc shape.
5. The dehumidification and drainage device for a cable trench according to claim 4, wherein the abutment component (204c) comprises cross brackets (204c-1) arranged on the front and rear sides of the moving cylinder (204a), and abutment plates (204c-2) arranged on left and right sides of the cross brackets (204c-1).
6. The dehumidification and drainage device for a cable trench according to claim 5, wherein the air diffusing component (204d) comprises spur racks (204d-1) arranged at ends of opposite sides of the two cross brackets (204c-1), gears (204d-2) arranged below the spur racks (204d-1), rotating rods (204d-3) arranged between the gears (204d-2) and a side wall of the trench body (101), fan blades (204d-4) arranged on the rotating rods (204d-3), and mesh covers (204d-5) arranged outside the fan blades (204d-4).
7. The dehumidification and drainage device for a cable trench according to any one of claims 1-6, wherein the side ventilation assembly (301) comprises two side elastic airbags (301a) arranged on an inner wall of an end portion of the trench body (101), side intake pipes (301b) and side exhaust pipes (301c) arranged on outer walls of the side elastic airbags (301a), side drying cylinders (301d) arranged outside the trench body (101) for communicating with the side intake pipes (301b), and side communication pipes (301e) arranged on the side drying cylinders (301d).
8. The dehumidification and drainage device for a cable trench according to any one of claims 2-5, wherein the middle ventilation assembly (302) comprises four middle elastic airbags (302a) arranged on left and right sides of the limiting block (203c), middle intake pipes (302b) and middle exhaust pipes (302c) arranged on outer walls of the middle elastic airbags (302a), middle drying cylinders (302d) arranged outside the trench body (101) for communicating with the middle intake pipes (302b), and middle communication pipes (302e) arranged on the middle drying cylinders (302d).
9. The dehumidification and drainage device for a cable trench according to claim 8,
. . 2e . . LU505494 wherein a plurality of heat dissipation holes (203e) are disposed on the protective covers (203d).
10. The dehumidification and drainage device for a cable trench according to claim 9, wherein a filter screen (202a) 1s arranged in each of the drainage pipes (202).
LU505494A 2023-11-13 2023-11-13 Dehumidification and drainage device for cable trench LU505494B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
LU505494A LU505494B1 (en) 2023-11-13 2023-11-13 Dehumidification and drainage device for cable trench

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU505494A LU505494B1 (en) 2023-11-13 2023-11-13 Dehumidification and drainage device for cable trench

Publications (1)

Publication Number Publication Date
LU505494B1 true LU505494B1 (en) 2024-05-13

Family

ID=91070564

Family Applications (1)

Application Number Title Priority Date Filing Date
LU505494A LU505494B1 (en) 2023-11-13 2023-11-13 Dehumidification and drainage device for cable trench

Country Status (1)

Country Link
LU (1) LU505494B1 (en)

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FG Patent granted

Effective date: 20240513