KR100792577B1 - A steel chamber for being used as a manhole of steam pipeline - Google Patents

Abstract

A steel chamber used as a manhole of a steam pipeline is provided to maintain an internal environment of the steel chamber in an optimum condition by installing a ventilation funnel. A steel chamber used as a manhole of a steam pipeline includes a steel chamber body(110), a disk-like floor sheet(120), a cover sheet(130), an inlet pipe(140), a manhole lid(145), and a ventilation funnel(170). The steel chamber body is made of steel in a cylindrical shape with a top opened. The steel chamber has a condensed water collecting unit integrally mounted in the inside of the cylindrical body. The disk-like floor sheet is attached to a bottom surface of the steel chamber body and has an area larger than the bottom surface of the steel chamber body. The cover sheet covers the opened top to hermetically seal the steel chamber. The condensed water collecting pipe is connected to the cover sheet. The inlet pipe has a ladder(270) attached to one side of an inner surface of the inlet pipe. The manhole lid is coupled with the steel chamber body to be opened and closed.

Description

A steel chamber for being used as a manhole of steam pipeline}

1 is a view showing a concrete manhole according to the prior art.

Figure 2 is a perspective view showing a steel chamber for the steam pipe manhole according to an embodiment of the present invention.

3 is a view schematically showing a state in which a steam pipe and a condensate recovery pipe are connected to a steel chamber for a steam pipe manhole according to the present invention.

Figure 4 is a side view showing the internal structure of the steel chamber for steam pipe manhole shown in FIG.

5 is a plan view showing the internal structure of the steel chamber for the steam pipe manhole shown in FIG.

<Description of the symbols for the main parts of the drawings>

100: steel chamber 110: steel chamber body

120: floor sheet 130: cover sheet

135: crane ring 140: inlet pipe

145: manhole cover 150: steam pipe

160: condensate recovery pipe 170: ventilation tube

210: flange 220: first gate valve

230: steam trap 240: second gate valve

250: cooler 255: cooler support

260: condensate pipe 270: ladder

280: concrete mat 295: body ring

The present invention relates to a steel chamber for a steam pipe manhole, and more particularly, to a steam pipe made of a steam pipe for transporting high-temperature and high-pressure steam and a condensate recovery pipe for collecting and transporting condensate from the steam pipe. Manhole made of steel, which is used as a material, is connected to the steam pipe to be completely waterproof, and various equipments for condensate recovery are integrally installed inside the body, and the humidity and temperature inside the manhole are kept constant. Economical use by reducing the cost and time required for manufacturing and site construction by attaching an inlet pipe that can easily change the length so that the operator can enter the manhole regardless of the depth of buried ventilation and manhole buried depth Steel Chamber for Steam Pipe Manholes Relate to.

In general, a manhole is a structure that provides a space for a worker to enter and exit the pipe to check, connect, repair or clean underground water pipes, sewer pipes, wiring, underground communication cable or pavement. The manhole is usually installed at the starting point or intersection of the pipe, at the point where the thickness or direction of the pipe changes, and at the middle of the long pipe. The shape of the manhole is most easy to construct, and there are also squares and ovals. .

The inside of the manhole can be accessed through an entrance exposed on the road surface, and the entrance is normally covered with a cover to prevent foreign substances from entering or entering a worker. The cover is made of metal such as reinforced concrete or cast iron.

Usually the height of the manhole bottom is the same as the bottom of the pipeline, or lower than the bottom of the pipeline to accommodate the sediment. The depth of the manhole burial depends on the depth of burial in the pipeline.

Manholes with the above characteristics were conventionally manufactured as concrete manholes, but the skeleton was made of steel in advance, and the concrete was poured in the formwork to form the body frame of the manhole, and the manhole frame was buried by digging the ground at the installation position of the manhole. The manholes were used by connecting pipes or other necessary equipment, then covering the manhole cover and finally covering the metal manhole cover.

Looking at the concrete manhole according to the prior art with reference to Figure 1 as follows.

1 is a view showing a concrete manhole according to the prior art.

Referring to FIG. 1, the concrete manhole 10 according to the related art has a body frame 2 having a through hole formed therein so that the upper part of the body is open and a tube 6 can be inserted into the side, and the body frame 2. The cover plate (4) and the cover plate (4) and the body frame (2) formed of a manhole hole in the center of the body that serves to cover the upper open surface of the operator can enter and exit the interior of the body frame (2) It consists of a manhole cover 8 covering a manhole hole formed in the center portion of the support plate 5 and the cover plate 4 to secure a gap between the combination.

Body frame (2) and the cover plate (4) is made of reinforced concrete with a skeleton of the body inside the reinforcement has a strong robustness to external impact, hardly affected by corrosion, etc. due to the nature of the material. The tube 6 is inserted into the side of the body frame 2 and the inserted tube 6 is connected inside the body frame 2 or after other devices or equipment are additionally installed.

When the cover plate 4 is placed on the upper open surface of the body frame 2, the support 5 is placed therebetween, so that the empty space created by the support 5 is cement and sand. The mortar, kneaded in a constant proportion, is applied to seal the connection with the outside.

In the manhole of the cover plate 4 exposed on the road surface, a manhole cover 8, which is mainly made of cast iron, is used as a lid, and may enter the body frame 2 of the concrete manhole 10.

However, since the concrete manhole 10 according to the prior art is made of reinforced concrete using formwork at the construction site, not only takes a long time to manufacture, but also a lot of manpower and labor costs.

In addition, since the concrete manhole 10 is made of concrete, it is difficult to move the position during transportation and embedding due to a lot of weight, and problems such as cracking or cracking may occur due to external impact. On the other hand, after embedding the concrete manhole (10) in the basement, there is a problem to perform a separate waterproof treatment, such as applying concrete to the joint after inserting the pipe.

In addition, the embedding depth of the manhole has a problem that can be applied only to the steam pipe is not deep embedding depth so that the manhole cover 8 is exposed to the road surface.

The present invention has been made in order to solve the above problems, it is used as a steam pipe manhole for transporting high-temperature, high-pressure steam, economical in manufacturing and construction, and more efficient steam pipe maintenance and maintenance according to use The object is to provide a steel chamber for the manhole.

That is, in order to achieve the above object, the material is made of steel, and is connected to the steam pipe and the condensate recovery pipe of the steam pipe so as to be completely waterproof, and various equipments for condensate recovery are integrally mounted inside the body, and the steel chamber It is attached with an inlet pipe that can easily change its length so that the operator can enter the steel chamber body regardless of the depth of the ventilation chamber and the steel chamber embedded to keep the internal temperature and humidity constant. Its purpose is to provide a steel chamber for steam pipe manholes, which is easy to repair, reduces the cost and time required for manufacturing, and minimizes work in the field, thereby reducing construction costs and construction period.

Steel chamber for steam pipe manhole according to the present invention for achieving the above object is in the manhole used in the steam pipe consisting of a steam pipe for transporting high-temperature, high-pressure steam and a condensate recovery pipe for picking up and transporting condensate from the steam pipe The steel chamber is made of steel and has an open upper cylindrical body, and the steam pipe is connected to the side of the cylindrical body, and the steel chamber body is integrally mounted with the condensate recovery facilities inside the cylindrical body. Is attached to the lower surface of the steel chamber body, the disk-like bottom sheet having an area larger than the area of the lower surface, and the disk-shaped body to cover and seal the upper opening surface of the steel chamber body In the disc-shaped body, the crane ring is attached to the center portion of the upper surface, the work on one side of the upper surface An inlet hole is formed to allow the self to enter the inside of the steel chamber body and is coupled to the cover sheet through which the condensate recovery pipe is connected, and the inlet hole formed on the upper surface of the cover sheet, and the worker is connected to the steel chamber body. Inlet pipe with a ladder attached to one side of the inner surface so as to easily enter into, and coupled to open and close the upper portion of the inlet pipe, one end of the body is coupled to the side of the manhole cover and the steel chamber body exposed to the road surface And the other end of the body is characterized in that it comprises a ventilator exposed over the road surface.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a perspective view showing a steel chamber for steam pipe manhole according to an embodiment of the present invention.

Referring to Figure 2, the steel chamber 100 for the steam pipe manhole according to an embodiment of the present invention is made of a steel (steel) material and made of a cylindrical body with an open top, the steam pipe 150 to the side The steel chamber body 110 is inserted and connected to the condensate recovery unit integrally mounted therein, the disc-shaped bottom sheet 120 attached to the lower end of the steel chamber body 110, and the steel chamber body 110 of the Covered to seal the upper open surface, the crane ring 135 is mounted in the center of the upper surface, the cover is connected to the condensate recovery pipe 160 for discharging the condensate through the condensate recovery equipment provided in the steel chamber body 110 The inlet pipe 140 and the inlet pipe 140 which are passages through which the worker can enter the inside of the steel chamber body 110 which is coupled to one side of the seat 130 and the upper surface of the cover sheet 130 and is buried underground. Connected to the top of the) and exposed on the road surface, Is connected to the side of the manhole cover 145 and the steel chamber body 110 that can be opened and closed when entering the steel chamber body 110 and the other end is exposed to the road surface to ventilate the interior of the steel chamber body 110 It is configured to include a ventilator 170.

Steel chamber body 100 is made of steel (steel), the interior of the steel chamber body 110 is installed in the steam pipeline system (steam pipeline system) various equipment necessary for the recovery of condensed water is installed by the worker can work in and out. To provide space.

The steam pipe 150 is a pipe for transporting the high temperature and high pressure steam produced by using heat generated from a cogeneration plant or a waste incinerator, and the condensate recovery pipe 160 is a steel chamber ( It is a tube recovered through 100).

The connection portion of the steam pipe 150 and the condensate return pipe 160 coupled to the steel chamber body 110 is completely waterproofed by welding, and prevents leakage from underground ground.

The bottom sheet 120 has a wider area than the lower bottom surface of the steel chamber body 110, and acts as a soil load when undergrounding the steel chamber 100 to firmly fix the steel chamber 100. It prevents the steel chamber 100 from moving up and down.

The cover sheet 130 serves as a cover covering the upper open surface of the steel chamber body 110. When installing various equipment for condensate recovery provided in the interior of the steel chamber body 110 through the manhole cover 145, it is necessary to disassemble and install various equipments smaller than the manhole cover 145. After installing the inside of the steel chamber body 110, attach the cover sheet 130.

The crane ring 135 is attached to the center of the upper surface of the cover sheet 130 so that the crane can be used when the steel chamber 100 is transported, and one side of the upper surface of the cover sheet 130 allows the worker to enter and exit the inside of the steel chamber body 110. Inlet holes are formed. In addition, the condensate recovery pipe 160 for discharging the low-temperature condensate from the steel chamber 100 is connected.

The inlet tube 140 is a passage tube through which the worker can enter the inside of the steel chamber body 110, unlike the conventional concrete manhole 10, the length thereof can be set variably according to the depth of embedding, thereby providing a manhole installation environment. The steel chamber 100 can be embedded freely without receiving. The inlet tube 140 is formed in a cylindrical shape with both ends penetrated, and the upper and lower manhole cover 145 is coupled to the road surface, and the lower end is connected to the inlet hole of the cover sheet 130.

Ventilator 170 is connected to the side of the steel chamber body 110, one end is exposed to the ground surface serves to maintain the moisture, temperature, etc. inside the steel chamber body (110). Piping structure of the ventilator 170 may be freely changed in position depending on the installation environment of the steel chamber 100, the length of the ventilator 170 is configured to be longer than the length of the inlet pipe 140 The other end of the ventilator 170 is exposed on the road surface, and the length is variable according to the depth of embedding, such as the inlet pipe 140.

In the present embodiment, a pair of ventilators 170 are configured, but the number may be changed according to the size and embedding environment of the steel chamber 100.

3 is a view schematically showing a state in which a steam pipe and a recovery pipe are connected to a steel chamber for a steam pipe manhole according to the present invention.

Looking at the pipe connection structure using the steel chamber 100 for the steam pipe manhole with reference to Figure 3, using high-temperature, high-pressure steam produced using heat produced in the heat source production area, such as cogeneration plant, waste incinerator In the steam pipe system to be transported to the region, the steam pipe 150 is buried underground, the condensate recovery pipe 160 for recovering and transporting the condensate generated in the steam pipe 150 in the process of transporting steam to the steam pipe 150 Are buried together accordingly.

That is, the condensate generated in the steam pipe 150 may interfere with the transport of the steam, and may damage the steam pipe 150 by a steam hammer action that condensate hits the inside of the steam pipe 150. The steel chamber 100 is used to remove condensate generated in the interior.

The high temperature condensate and some high temperature steam generated in the steam pipe 150 are converted into low temperature condensed water through the steel chamber 100, and the low temperature condensed water is sent to the condensate recovery pipe 160.

In the present embodiment, the steam pipe is composed of two steam pipes 150 and one recovery pipe 160 for recovering condensed water generated from the two steam pipes 150, but the installation conditions of the steam pipe system, the temperature and the amount of steam, etc. The number of the steam pipe 150 and the condensate recovery pipe 160 may be freely changed according to the conditions of the steam pipe 150 and the condensate recovery pipe 140 may not be used in the steam pipe depending on the size, installation location and other conditions of the steam pipe system. It is also possible to discharge the low temperature condensate water from the steel chamber 100 to the basement or the outside of the surface.

Figure 4 is a view showing the internal structure of the steel chamber for steam pipe manhole shown in Figure 2 from the side, Figure 5 is a view showing the internal structure of the steel chamber for steam pipe manhole shown in Figure 2 in a plan view.

Looking at the internal structure of the steel chamber for the steam pipe manhole according to the present invention with reference to Figures 4 and 5, first, the various kinds of equipment for condensate recovery in the interior of the steel chamber body 110 is integrated with the steel chamber body 110 It is provided. Looking at the various equipment for condensate recovery, various equipment for condensate recovery is connected to the steam pipe 150 penetrating the side of the steel chamber body 110, to temporarily store the high-temperature steam and condensate sent from the steam pipe 150 Provides a space, and the flange portion 210 which can open the flange in an emergency to immediately take out the hot steam and condensate, and connected to the flange portion 210 to determine the path of the hot steam and condensate through the locking function A steam trap for filtering impurities from the hot steam and condensate transported through the one gate valve 220 and the open first gate valve 220, and then converting the impurities into hot condensate; 230 and the high temperature through the second gate valve 240 and the second gate valve 240 having a locking function to prevent the operation of the steam trap 230, the reverse flow of the high-temperature condensate to be transported And cooling the condensate in a low-temperature condensate is configured to include a cooler 250 to export a condensate return pipe (160).

The condensate transfer pipe 260 is connected between the cooler 250 and the condensate return pipe 160 attached to the upper surface of the cover sheet 130. In addition, the cooler 250 is cooled by the temperature difference between the ambient air and the high temperature condensed water inside the cooler 250 in an air-cooled manner, and the upper portion of the cooler 250 according to the amount of condensed water introduced into the cooler 250. Condensate is sent out to the combined condensate delivery pipe 260.

In this embodiment, the condensed water and steam are delivered to the cooler 250 through two paths for each one of the steam pipes 150, but the condensed water and steam to the cooler 250 in a plurality of paths to one steam pipe 150. And various valves for condensate recovery may be equipped with various valves other than the configuration according to the present embodiment.

The flange portion 210 is a lower end of the washer (washer) that can be opened and closed manually, the gasket (gasket) and the disc-shaped cover is laminated is attached. Normally, the lower end is sealed, and in case of emergency, the operator may open the lower end of the flange 210 to remove foreign substances or to remove the hot steam and condensed water transported from the steam pipe 150 to the lower portion of the flange 210.

In this embodiment, the hot steam and the condensate are transported to the steam trap 230 through a pipe line in which the first gate valve 220 is opened among two paths, one path depending on whether the first gate valve 220 is locked. It may be transported by or by both routes.

The high temperature vapor in the gaseous state and the high temperature condensate in the liquid state are converted into the high temperature condensate in the liquid state through the steam trap 230, and when the high temperature condensate is discharged directly to the basement, the environmental pollution such as ecosystem destruction is removed. Since it can cause the cooling of the low-temperature condensed water is sent out of the steel chamber (100).

The steam trap 230 incorporates a strainer valve that filters impurities in the transport transported through the conduit before converting the transported hot steam and condensate into pure hot condensate.

In the present exemplary embodiment, the steam trap 230 having the built-in strainer valve is used inside the steel chamber 100. However, when the strainer valve is not built in the steam trap 230, the first gate valve 220 and the steam trap are included. Further strainer valves are mounted between the conduits of 230.

On the other hand, one side of the upper surface of the cover sheet 130 is coupled to the inlet pipe 140 is made of different lengths according to the depth of the buried place is attached, the inner surface of the inlet pipe 140, the operator is a steel chamber body ( A ladder 270 is installed to easily enter the inside of the 110. In addition, the ladder 270 is also attached to the inner side of the steel chamber body 110 which is located in the longitudinal extension of the inlet pipe 140.

That is, the ladder 270 is installed from the upper end of the inlet pipe 140 to the lower surface of the steel chamber body 110.

In order to facilitate the transport of the steel chamber 100 in the process of manufacturing the steel chamber 100 to embed the crane ring 135 is installed in the center of the upper surface of the cover sheet 130, the steel chamber body 110 Also attached to the inner side of the "c" shaped a plurality of body rings are attached.

Looking at the bottom surface of the steel chamber body 110, the bottom surface of the inside of the steel chamber body 110 increases the load of the cylindrical body of the steel chamber 100 and to maintain the center of gravity to ensure the stability of the concrete mat 120 ) Are stacked.

In addition, one side of the bottom surface of the steel chamber 110 on which the concrete mat 120 is placed is a hollow portion (S1) is formed instead of the concrete mat 120, rain water or steel entering the steel chamber body 110 inside A space for accommodating foreign substances such as precipitates generated inside the chamber body 110 is formed.

One end of two ventilation cylinders 170 which maintain humidity, temperature, etc. inside the steel chamber body 110 at an appropriate level is connected to the side of the steel chamber body 110, and the other end is exposed on the road surface. Ventilator 170 may be freely spaced apart from the steel chamber body 110 through the connection of the tube.

By passing the condensate generated inside the steam pipe 150 through the manhole steel chamber 100 used in the steam pipe system to the condensate recovery pipe 160 to prevent the flow of steam in the transport of the steam pipe It is possible to prevent the breakage of 150 and the like and to transport the steam more efficiently.

In addition, by using an integrated steel chamber 100 made of steel as the manhole of the steam piping system, it is possible to reduce the cost, time, etc., when manufacturing the manhole, and to reduce the construction cost and construction time when installing the manhole. There is also. On the other hand, the connection process between the pipe and the manhole is superior to the conventional concrete manhole 10, the waterproofing of the connection portion is excellent, there is also an effect that can prevent damage to various internal equipment due to leakage.

The present invention described above is not limited to the above-described embodiments and accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be clear to those who have knowledge of God.

As described above, the steel chamber for the steam pipe manhole according to the present invention takes less production cost and manufacturing time by using a steel material, and various facilities necessary for condensate recovery during steam piping are installed in the steel chamber. By minimizing the work of the project has the effect of reducing the construction cost and construction period. On the other hand, when the pipe is connected to the steel chamber, the connection part is waterproofed to solve the problem caused by water leakage. Ventilation, etc. are installed to easily maintain and repair the manhole by optimally maintaining the environment inside the steel chamber. Has an effect.

In addition, since the length of the inlet pipe of the steel chamber can be set freely, there is an advantage that the steel chamber can be used freely regardless of the depth of embedding.

Claims (6)

In the manhole used for the steam pipe consisting of a steam pipe for transporting high-temperature, high-pressure steam and a condensate recovery pipe for collecting and transporting condensate from the steam pipe, A steel chamber body made of steel and having a cylindrical body having an open top, the steam pipe penetrating through the side of the cylindrical body, and having a condensate recovery unit integrated therein; A disk-shaped bottom sheet attached to a lower surface of the steel chamber body and having an area larger than that of the lower surface; It is made of a disk-shaped body to cover and seal the upper opening surface of the steel chamber body, the crane ring is attached to the central portion of the upper surface of the disk-shaped body, the operator on one side of the upper surface of the steel chamber A cover sheet having an inlet hole for entering the body and connected through the condensate return pipe; An inlet pipe coupled to the inlet hole formed in the upper surface of the cover sheet and having a ladder attached to one side of an inner surface thereof so that an operator can easily enter the steel chamber body; A manhole cover coupled to the upper portion of the inlet pipe and exposed to the road surface; And One end of the body is coupled to the side of the steel chamber body and the other end of the body is exposed to the top of the road surface; Steel chamber for steam pipe manhole, characterized in that comprising a. The method of claim 1, Condensate recovery unit is integrally mounted in the interior of the steel chamber body, A flange portion providing a space for temporarily collecting the high temperature steam and condensed water transported from the steam pipe; A first gate valve configured to determine a progress path of the condensate transport through a lock; A steam trap configured to filter impurities from condensate mixed with the high temperature steam passing through the first gate valve and convert the filtered high temperature steam and condensate into high temperature pure condensate; A second gate valve for preventing the transport of the condensed water due to an abnormal operation of the steam trap or being transported in a reverse direction; And A cooler configured to cool the high temperature condensate passing through the second gate valve with the low temperature condensate to be discharged to the condensate return pipe; Steel chamber for steam pipe manhole, characterized in that comprising a. The method of claim 1, Inside the steel chamber body, A concrete mat laid on an inner bottom surface of the steel chamber body; A pool that can accommodate rainwater or sediment on one side of the inner bottom surface of the steel chamber body; And A plurality of body rings having a "c" shape coupled to the inner side of the steel chamber body; Steel chamber for steam pipe manhole, characterized in that it comprises a. The method of claim 1, The inlet pipe, The length of the inlet pipe is set in accordance with the depth of the underground chamber of the steel chamber body is attached to the cover seat steel chamber for the steam pipe manhole. The method of claim 1, The number of steam pipes connected to the side of the steel chamber body may vary depending on the installation conditions of the steam pipe system, the temperature and the amount of steam conditions of the steam pipe manhole. The method of claim 2, When the strainer valve is not built in the steam trap, the strainer valve is further included between the first gate valve and the conduit of the steam trap, characterized in that the steam pipe manhole steel chamber.

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