CN104452951A - floor drain - Google Patents

Abstract

The invention provides a drainage floor drain, which includes a cable trench bottom plate, a sump is provided on the cable trench bottom plate, a floor drain cylinder is arranged in the sump pit, and a floor drain cover is connected to the upper end of the floor drain cylinder. The end of the floor drain cylinder in contact with the bottom surface of the sump is provided with a plurality of water inlet holes along the circumferential direction. The drainage floor drain of the present invention can ensure that rainwater in the cable trench enters the drainage pipe network smoothly in summer, and prevents hot air in the drainage pipe network from entering the cable trench in winter. The drainage floor drain also has anti-frost heave performance.

Description

floor drain

technical field

The invention relates to a floor drain, in particular to a floor drain for drainage of outdoor cable trenches in substations in the field of power transmission and distribution and power utilization engineering.

Background technique

At present, cable trenches play a very important role in substations. Common concrete cable trenches commonly used in substations are outdoor underground structures, and drainage measures such as floor drains and drainage pipes need to be installed for drainage. Floor drains are an important part of cable trenches.

In winter in cold regions, due to the high underground temperature and low surface temperature, hot air will be generated in the underground drain pipe and flow to the surface through the drain pipe. The hot air will enter the cable trench through the ordinary floor drain, which will cause the cable to freeze and frost in the cable trench. The normal operation of the substation brings hidden dangers.

Contents of the invention

The purpose of the present invention is to provide a drainage floor drain, which can ensure that the rainwater in the cable trench enters the drainage pipe network smoothly in summer, and prevents the hot air in the drainage pipe network from entering the cable trench in winter. The drainage floor drain also has anti-frost heave performance.

Above-mentioned purpose of the present invention can adopt following technical scheme to realize:

The invention provides a drainage floor drain, which comprises a cable trench bottom plate, a sump is opened on the cable trench bottom plate, a floor drain cylinder is arranged in the sump pit, a floor drain cover is connected to the upper end of the floor drain cylinder, and the floor drain The end of the cylinder in contact with the bottom surface of the sump is provided with a plurality of water inlet holes along the circumferential direction.

In a preferred embodiment, the sump is in the shape of a rounded frustum.

In a preferred embodiment, the angle between the side wall of the sump and the bottom of the sump is 120° to 150°.

In a preferred embodiment, a drainage pipe is provided under the bottom plate of the cable trench, and one end of the drainage pipe passing through the sump is located in the floor drain cylinder.

In a preferred embodiment, the height of the drainage pipe passing through the sump is greater than the height of the water inlet hole.

In a preferred embodiment, the floor drain cover is made of steel.

The characteristics and advantages of the drainage floor drain of the present invention are: the drainage floor drain has a practical and important role in power transformation, can effectively prevent water vapor from entering the cable trench, effectively prevent cables from freezing, and has the function of preventing frost heave itself, and its structure is simple , the practical application effect is good, and the practical value is great.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is a front view of the drainage floor drain of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Figure 1, the present invention provides a drainage floor drain, which includes a cable trench bottom plate 1, a sump pit 11 is opened on the cable trench bottom plate 1, and a floor drain cylinder 2 is arranged in the sump pit 11. A floor drain cover 3 is connected to the upper end of the floor drain cylinder 2 , and a plurality of water inlet holes 21 are opened along the circumferential direction at one end of the floor drain cylinder 2 which is in contact with the bottom surface of the sump 11 .

Specifically, the cable trench bottom plate 1 is generally in the shape of a long strip, and it is laid on the bottom surface of the cable trench. When the bottom surface of the trench is on the bottom of the trench, the sump 11 is just opposite to the drain pipe 4 in the trench of the cable trench, so that the drain pipe 4 penetrates into the sump 11 of the bottom plate of the cable trench 1 from the bottom of the cable trench bottom plate 1 . In the present invention, the sump 11 is in the shape of a rounded platform, and the angle θ between the side wall of the sump 11 and the bottom surface of the sump 11 is 120 degrees to 150 degrees. In this embodiment, the included angle θ is 135 degrees.

The floor drain cylinder 2 is generally in the shape of a flat cylinder, and its upper end is welded with a floor drain cover 3. In the present invention, the floor drain cover 3 is made of steel. The floor drain cylinder 2 is located in the sump 11 and is covered at the end where the drain pipe 4 passes through the sump 11 . In this embodiment, the end of the floor drain cylinder 2 in contact with the bottom surface of the sump 11 is evenly provided with a plurality of water inlet holes 21 along the circumferential direction, and the water inlet holes 21 communicate with the sump 11 and the inside of the floor drain cylinder 2, The water inlet 21 is an elliptical arched hole, and its height H2 is smaller than the height H1 of the drainage pipe 4 passing through the sump 11, that is, the height H1 of the drainage pipe 4 above the bottom surface of the sump 11 is greater than the height of the water inlet 21 H2.

In winter, the water vapor in the underground pipe network flows upwards into the floor drain tube 2 through the drain pipe 4. The water vapor contacts with the steel floor drain cover 3 and forms condensed water after being cooled. The condensed water flows down along the side wall of the floor drain tube 2 and is sealed after freezing. A plurality of water inlet holes 21 of the dead floor drain tube 2, thereby achieving the purpose of preventing the water vapor in the drain pipe 4 from entering the sump 11 and then entering the cable trench; Arranged in order to facilitate personnel to walk on the cable trench bottom plate 1; moreover, the sump 11 is made into a “round bucket” shape with a large upper part and a smaller bottom plate. And floor drain tube 2 can move up and down freely, not affected by frost heave. When draining water in summer, the water flowing into the sump 11 flows into the drainpipe 4 through a plurality of water inlet holes 21 of the floor drain cylinder 2, so as to facilitate the discharge of accumulated water.

The drainage floor drain of the present invention plays an important practical role in power transformation, can effectively prevent water vapor from entering the cable trench, effectively prevent cables from freezing, and has the function of preventing frost heaving. It has a simple structure, good practical application effect, and great practical value .

The above are only a few embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the contents disclosed in the application documents without departing from the spirit and scope of the present invention.

Claims (6)

1. a floor drain, it is characterized in that, it comprises cable trench base plate, described cable trench base plate offers sump, floor drain cylinder is provided with in described sump, the upper end of described floor drain cylinder is connected with drain cover, and one end that described floor drain cylinder contacts with the bottom surface of described sump along the circumferential direction offers multiple inlet opening.

2. floor drain as claimed in claim 1, it is characterized in that, described sump is the inverted round stage bodily form.

3. floor drain as claimed in claim 2, it is characterized in that, the angle between the sidewall of described sump and the bottom surface of described sump is 120 degree to 150 degree.

4. floor drain as claimed in claim 1, it is characterized in that, the below of described cable trench base plate is provided with gutter, and one end that described gutter passes described sump is positioned at described floor drain cylinder.

5. floor drain as claimed in claim 4, is characterized in that, the height that described gutter passes described sump is greater than the height of described inlet opening.

6. floor drain as claimed in claim 1, it is characterized in that, described drain cover is formed from steel.